Tetra Tech (TTEK)
Tetra Tech on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, federal contracts, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as services-engineering services.
11.9M
Short interest
settlement 2026-09-30
5.1
Days to cover
-1.0 days vs prior
46.6%
Short share of volume
2026-10-23
61
Fails to deliver
settlement 2026-09-29
Wed 11 Nov
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-10-23.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in TTEK is 11,876,810 shares, up 1,203,203 shares over the last month. Over the last 48 readings it ranged from 3,403,141 shares (15 October 2024) to 13,322,302 shares (15 May 2026). At the reported average volume of 2.3M shares a day that is 5.1 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 11,876,810 | +7.1% | 2,340,340 | 5.07 |
| 2026-09-15 | 11,089,741 | +3.9% | 1,817,400 | 6.10 |
| 2026-08-31 | 10,673,607 | -0.5% | 2,682,900 | 3.98 |
| 2026-08-14 | 10,724,961 | -9.3% | 2,460,774 | 4.36 |
| 2026-07-31 | 11,827,081 | -2.7% | 3,185,134 | 3.71 |
| 2026-07-15 | 12,159,832 | -0.2% | 2,617,893 | 4.64 |
| 2026-06-30 | 12,183,922 | +11.8% | 4,324,165 | 2.82 |
| 2026-06-15 | 10,902,026 | -16.7% | 3,746,181 | 2.91 |
| 2026-05-29 | 13,090,177 | -1.7% | 3,344,233 | 3.91 |
| 2026-05-15 | 13,322,302 | +4.0% | 4,028,620 | 3.31 |
| 2026-04-30 | 12,814,107 | +13.7% | 3,055,570 | 4.19 |
| 2026-04-15 | 11,266,565 | -7.2% | 2,374,218 | 4.75 |
| 2026-03-31 | 12,145,841 | +9.5% | 3,039,668 | 4.00 |
| 2026-03-13 | 11,092,876 | +4.7% | 2,223,635 | 4.99 |
| 2026-02-27 | 10,598,378 | +17.4% | 3,059,825 | 3.46 |
| 2026-02-13 | 9,026,524 | +8.9% | 4,359,104 | 2.07 |
| 2026-01-30 | 8,290,831 | +5.9% | 2,392,871 | 3.46 |
| 2026-01-15 | 7,829,609 | -3.7% | 2,113,080 | 3.71 |
| 2025-12-31 | 8,130,492 | -1.4% | 1,570,783 | 5.18 |
| 2025-12-15 | 8,242,674 | -11.2% | 2,144,440 | 3.84 |
| 2025-11-28 | 9,285,021 | +8.8% | 3,050,798 | 3.04 |
| 2025-11-14 | 8,534,166 | +1.6% | 3,223,500 | 2.65 |
| 2025-10-31 | 8,399,141 | -17.6% | 2,010,303 | 4.18 |
| 2025-10-15 | 10,199,714 | -14.3% | 2,340,561 | 4.36 |
| 2025-09-30 | 11,895,223 | +8.5% | 2,295,824 | 5.18 |
| 2025-09-15 | 10,966,969 | +5.6% | 2,165,995 | 5.06 |
| 2025-08-29 | 10,389,167 | -2.3% | 1,841,078 | 5.64 |
| 2025-08-15 | 10,637,206 | +3.6% | 2,028,969 | 5.24 |
| 2025-07-31 | 10,264,918 | +12.9% | 1,778,517 | 5.77 |
| 2025-07-15 | 9,088,430 | -3.0% | 1,560,864 | 5.82 |
| 2025-06-30 | 9,373,465 | -9.1% | 2,047,474 | 4.58 |
| 2025-06-13 | 10,307,285 | +4.5% | 1,906,035 | 5.41 |
| 2025-05-30 | 9,859,270 | +7.7% | 2,015,519 | 4.89 |
| 2025-05-15 | 9,158,834 | +2.9% | 3,041,797 | 3.01 |
| 2025-04-30 | 8,903,844 | +1.0% | 1,446,251 | 6.16 |
| 2025-04-15 | 8,814,856 | -5.5% | 2,420,661 | 3.64 |
| 2025-03-31 | 9,325,200 | +3.3% | 2,184,030 | 4.27 |
| 2025-03-14 | 9,027,342 | +9.4% | 2,736,853 | 3.30 |
| 2025-02-28 | 8,251,452 | +4.4% | 2,703,845 | 3.05 |
| 2025-02-14 | 7,905,756 | +66.4% | 3,710,294 | 2.13 |
| 2025-01-31 | 4,749,851 | -3.3% | 4,950,757 | 1.00 |
| 2025-01-15 | 4,911,977 | -4.6% | 1,468,367 | 3.35 |
| 2024-12-31 | 5,148,642 | +5.2% | 1,656,894 | 3.11 |
| 2024-12-13 | 4,896,224 | +3.9% | 1,904,334 | 2.57 |
| 2024-11-29 | 4,713,108 | -7.3% | 2,681,003 | 1.76 |
| 2024-11-15 | 5,086,384 | +29.7% | 3,130,813 | 1.62 |
| 2024-10-31 | 3,920,319 | +15.2% | 1,537,413 | 2.55 |
| 2024-10-15 | 3,403,141 | -1.8% | 1,321,350 | 2.58 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of TTEK volume is 46.6%, up 8.2 points over the last five sessions. Over the last 30 readings it ranged from 35.6% (22 October 2026) to 72.5% (14 September 2026). The latest reading is 4.6 points below the 30-session average of 51.2%, on 736K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 343K | 736K | 46.6% | 1,176 |
| 2026-10-22 | 272K | 764K | 35.6% | 0 |
| 2026-10-21 | 215K | 433K | 49.6% | 8 |
| 2026-10-20 | 185K | 356K | 52.0% | 0 |
| 2026-10-19 | 147K | 398K | 37.0% | 314 |
| 2026-10-16 | 140K | 364K | 38.4% | 0 |
| 2026-10-15 | 508K | 890K | 57.0% | 13,959 |
| 2026-10-14 | 481K | 909K | 53.0% | 2 |
| 2026-10-13 | 246K | 687K | 35.8% | 1,240 |
| 2026-10-12 | 180K | 371K | 48.5% | 65 |
| 2026-10-09 | 234K | 524K | 44.6% | 5,329 |
| 2026-10-08 | 237K | 454K | 52.1% | 3 |
| 2026-10-07 | 284K | 502K | 56.5% | 73 |
| 2026-10-06 | 217K | 424K | 51.2% | 245 |
| 2026-10-05 | 411K | 653K | 63.0% | 12 |
| 2026-10-02 | 434K | 775K | 55.9% | 0 |
| 2026-10-01 | 420K | 696K | 60.4% | 0 |
| 2026-09-30 | 373K | 875K | 42.6% | 0 |
| 2026-09-29 | 236K | 462K | 51.2% | 62 |
| 2026-09-28 | 303K | 655K | 46.2% | 697 |
| 2026-09-25 | 305K | 779K | 39.1% | 2 |
| 2026-09-24 | 345K | 659K | 52.3% | 219 |
| 2026-09-23 | 697K | 1.1M | 63.8% | 6,219 |
| 2026-09-22 | 348K | 678K | 51.4% | 0 |
| 2026-09-21 | 266K | 450K | 59.1% | 18 |
| 2026-09-18 | 301K | 580K | 51.9% | 38 |
| 2026-09-17 | 326K | 787K | 41.4% | 317 |
| 2026-09-16 | 405K | 593K | 68.3% | 116 |
| 2026-09-15 | 296K | 503K | 58.7% | 31 |
| 2026-09-14 | 725K | 1.0M | 72.5% | 374 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 29 September 2026, the fails-to-deliver balance in TTEK is 61 shares, down 191 shares over the last settlement date. Over the last 30 readings it ranged from 24 shares (27 April 2026) to 70,349 shares (29 May 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-29 | 61 | $33.89 | $2K |
| 2026-09-22 | 252 | $35.96 | $9K |
| 2026-09-21 | 6,784 | $35.69 | $242K |
| 2026-09-18 | 18,114 | $36.11 | $654K |
| 2026-09-15 | 17,317 | $36.71 | $636K |
| 2026-09-08 | 343 | $35.91 | $12K |
| 2026-09-03 | 31,573 | $35.91 | $1.1M |
| 2026-08-13 | 3,870 | $35.50 | $137K |
| 2026-08-06 | 188 | $34.29 | $6K |
| 2026-08-04 | 23,698 | $33.83 | $802K |
| 2026-07-24 | 298 | $30.57 | $9K |
| 2026-07-23 | 28,166 | $30.98 | $873K |
| 2026-07-06 | 497 | $29.90 | $15K |
| 2026-06-30 | 114 | $28.88 | $3K |
| 2026-06-15 | 6,945 | $28.43 | $197K |
| 2026-06-12 | 1,729 | $27.92 | $48K |
| 2026-06-11 | 34,853 | $27.15 | $946K |
| 2026-06-04 | 3,611 | $27.80 | $100K |
| 2026-06-03 | 3,077 | $27.13 | $83K |
| 2026-05-29 | 70,349 | $27.70 | $1.9M |
| 2026-05-26 | 498 | $27.65 | $14K |
| 2026-05-19 | 517 | $27.27 | $14K |
| 2026-05-18 | 605 | $26.18 | $16K |
| 2026-05-14 | 7,031 | $27.06 | $190K |
| 2026-05-06 | 1,820 | $31.65 | $58K |
| 2026-04-27 | 24 | $31.24 | $750 |
| 2026-04-24 | 1,005 | $31.33 | $31K |
| 2026-04-22 | 2,040 | $31.69 | $65K |
| 2026-04-10 | 33 | $30.85 | $1K |
| 2026-04-07 | 29 | $31.19 | $905 |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for TTEK in the last 90 days. The most recent filings are listed below. Latest filing: Volpi Kirsten M (Director) on 2026-08-04.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-08-04 | Volpi Kirsten M | Director | Exercise or conversion | 2K | $9.59 | $22K | 74K |
| 2026-06-04 | Volpi Kirsten M | Director | Exercise or conversion | 2K | $9.59 | $16K | 72K |
| 2026-05-15 | Feeler Jeffrey R | Director | Buy | 2K | $26.41 | $50K | 2K |
| 2026-03-16 | Ritrievi Kimberly E | Director | Exercise or conversion | 795 | $0.00 | $0 | 161K |
| 2026-03-16 | Ritrievi Kimberly E | Director | Grant | 26K | $0.00 | $0 | 192K |
| 2026-03-16 | Ritrievi Kimberly E | Director | Exercise or conversion | 2K | $0.00 | $0 | 166K |
| 2026-03-16 | Ritrievi Kimberly E | Director | Exercise or conversion | 2K | $0.00 | $0 | 165K |
| 2026-03-16 | Ritrievi Kimberly E | Director | Exercise or conversion | 2K | $0.00 | $0 | 163K |
| 2026-03-16 | Ritrievi Kimberly E | Director | Exercise or conversion | 795 | $0.00 | $0 | 160K |
| 2026-03-16 | Ritrievi Kimberly E | Director | Exercise or conversion | 2K | $0.00 | $0 | 159K |
| 2026-03-16 | Ritrievi Kimberly E | Director | Exercise or conversion | 3K | $0.00 | $0 | 157K |
| 2026-03-16 | Ritrievi Kimberly E | Director | Exercise or conversion | 2K | $0.00 | $0 | 154K |
| 2026-03-16 | Ritrievi Kimberly E | Director | Exercise or conversion | 2K | $0.00 | $0 | 152K |
| 2026-03-16 | Ritrievi Kimberly E | Director | Exercise or conversion | 5K | $0.00 | $0 | 150K |
| 2026-02-19 | Obiaya Christiana | Director | Exercise or conversion | 495 | $0.00 | $0 | 10K |
| 2026-02-10 | Volpi Kirsten M | Director | Exercise or conversion | 1K | $9.59 | $10K | 70K |
| 2026-02-06 | BURDICK STEVEN M | EVP, CFO | Gift | 11K | $0.00 | $0 | 138K |
| 2026-02-04 | CARTER BRIAN N | SVP, Corporate Controller | Sell | 10K | $40.23 | $401K | 46K |
| 2026-01-12 | Ritrievi Kimberly E | Director | Grant | 2K | $0.00 | $0 | 145K |
| 2026-01-12 | Birkenbeuel Gary | Director | Grant | 4K | $0.00 | $0 | 51K |
| 2026-01-12 | Birkenbeuel Gary | Director | Exercise or conversion | 2K | $0.00 | $0 | 47K |
| 2025-11-30 | Volpi Kirsten M | Director | Exercise or conversion | 2K | $0.00 | $0 | 68K |
| 2025-11-30 | SHOEMAKER LESLIE L | EVP, Chief Sustainability | Tax withholding | 4K | $34.74 | $129K | 326K |
| 2025-11-30 | SHOEMAKER LESLIE L | EVP, Chief Sustainability | Exercise or conversion | 4K | $0.00 | $0 | 330K |
| 2025-11-30 | SHOEMAKER LESLIE L | EVP, Chief Sustainability | Exercise or conversion | 3K | $0.00 | $0 | 326K |
| 2025-11-30 | Obiaya Christiana | Director | Exercise or conversion | 2K | $0.00 | $0 | 9K |
| 2025-11-30 | Hopson Preston | EVP, Chief Legal/Human Capital | Tax withholding | 2K | $34.74 | $71K | 83K |
| 2025-11-30 | Hopson Preston | EVP, Chief Legal/Human Capital | Exercise or conversion | 2K | $0.00 | $0 | 85K |
| 2025-11-30 | Hopson Preston | EVP, Chief Legal/Human Capital | Exercise or conversion | 3K | $0.00 | $0 | 83K |
| 2025-11-30 | Gandhi Prashant | Director | Exercise or conversion | 2K | $0.00 | $0 | 17K |
| 2025-11-30 | CARTER BRIAN N | SVP, Corporate Controller | Tax withholding | 2K | $34.74 | $52K | 56K |
| 2025-11-30 | CARTER BRIAN N | SVP, Corporate Controller | Exercise or conversion | 1K | $0.00 | $0 | 58K |
| 2025-11-30 | CARTER BRIAN N | SVP, Corporate Controller | Exercise or conversion | 2K | $0.00 | $0 | 57K |
| 2025-11-30 | BURDICK STEVEN M | EVP, CFO | Tax withholding | 4K | $34.74 | $140K | 149K |
| 2025-11-30 | BURDICK STEVEN M | EVP, CFO | Exercise or conversion | 4K | $0.00 | $0 | 153K |
| 2025-11-30 | BURDICK STEVEN M | EVP, CFO | Exercise or conversion | 4K | $0.00 | $0 | 150K |
| 2025-11-30 | BATRACK DAN L | Chairman and CEO | Tax withholding | 22K | $34.74 | $778K | 332K |
| 2025-11-30 | BATRACK DAN L | Chairman and CEO | Exercise or conversion | 19K | $0.00 | $0 | 355K |
| 2025-11-30 | BATRACK DAN L | Chairman and CEO | Exercise or conversion | 21K | $0.00 | $0 | 336K |
| 2025-11-30 | Argus Roger R | President | Tax withholding | 3K | $34.74 | $100K | 40K |
| 2025-11-30 | Argus Roger R | President | Exercise or conversion | 2K | $0.00 | $0 | 43K |
| 2025-11-30 | Argus Roger R | President | Exercise or conversion | 3K | $0.00 | $0 | 40K |
| 2025-11-28 | Volpi Kirsten M | Director | Exercise or conversion | 1K | $9.59 | $10K | 69K |
| 2025-11-18 | Volpi Kirsten M | Director | Grant | 4K | $0.00 | $0 | 67K |
| 2025-11-18 | SHOEMAKER LESLIE L | EVP, Chief Sustainability | Tax withholding | 15K | $35.69 | $539K | 323K |
| 2025-11-18 | SHOEMAKER LESLIE L | EVP, Chief Sustainability | Grant | 27K | $0.00 | $0 | 338K |
| 2025-11-18 | SHOEMAKER LESLIE L | EVP, Chief Sustainability | Tax withholding | 3K | $35.69 | $112K | 311K |
| 2025-11-18 | SHOEMAKER LESLIE L | EVP, Chief Sustainability | Exercise or conversion | 3K | $0.00 | $0 | 314K |
| 2025-11-18 | SHOEMAKER LESLIE L | EVP, Chief Sustainability | Exercise or conversion | 3K | $0.00 | $0 | 311K |
| 2025-11-18 | Obiaya Christiana | Director | Grant | 4K | $0.00 | $0 | 7K |
| 2025-11-18 | Hopson Preston | EVP, Chief Legal/Human Capital | Tax withholding | 9K | $35.69 | $308K | 80K |
| 2025-11-18 | Hopson Preston | EVP, Chief Legal/Human Capital | Grant | 22K | $0.00 | $0 | 89K |
| 2025-11-18 | Hopson Preston | EVP, Chief Legal/Human Capital | Tax withholding | 2K | $35.69 | $64K | 67K |
| 2025-11-18 | Hopson Preston | EVP, Chief Legal/Human Capital | Exercise or conversion | 3K | $0.00 | $0 | 69K |
| 2025-11-18 | Hopson Preston | EVP, Chief Legal/Human Capital | Exercise or conversion | 2K | $0.00 | $0 | 66K |
| 2025-11-18 | Gandhi Prashant | Director | Grant | 4K | $0.00 | $0 | 15K |
| 2025-11-18 | BURDICK STEVEN M | EVP, CFO | Tax withholding | 15K | $35.69 | $539K | 146K |
| 2025-11-18 | BURDICK STEVEN M | EVP, CFO | Grant | 27K | $0.00 | $0 | 161K |
| 2025-11-18 | BURDICK STEVEN M | EVP, CFO | Tax withholding | 3K | $35.69 | $112K | 134K |
| 2025-11-18 | BURDICK STEVEN M | EVP, CFO | Exercise or conversion | 3K | $0.00 | $0 | 137K |
| 2025-11-18 | BURDICK STEVEN M | EVP, CFO | Exercise or conversion | 3K | $0.00 | $0 | 134K |
| 2025-11-18 | BATRACK DAN L | Chairman and CEO | Tax withholding | 91K | $35.69 | $3.2M | 314K |
| 2025-11-18 | BATRACK DAN L | Chairman and CEO | Grant | 164K | $0.00 | $0 | 405K |
| 2025-11-18 | BATRACK DAN L | Chairman and CEO | Tax withholding | 18K | $35.69 | $651K | 241K |
| 2025-11-18 | BATRACK DAN L | Chairman and CEO | Exercise or conversion | 19K | $0.00 | $0 | 259K |
| 2025-11-18 | BATRACK DAN L | Chairman and CEO | Exercise or conversion | 14K | $0.00 | $0 | 240K |
| 2025-11-18 | Argus Roger R | President | Tax withholding | 12K | $35.69 | $431K | 38K |
| 2025-11-18 | Argus Roger R | President | Grant | 22K | $0.00 | $0 | 50K |
| 2025-11-18 | Argus Roger R | President | Tax withholding | 3K | $35.69 | $90K | 28K |
| 2025-11-18 | Argus Roger R | President | Exercise or conversion | 3K | $0.00 | $0 | 30K |
| 2025-11-18 | Argus Roger R | President | Exercise or conversion | 2K | $0.00 | $0 | 28K |
| 2025-11-18 | CARTER BRIAN N | SVP, Corporate Controller | Tax withholding | 6K | $35.69 | $213K | 55K |
| 2025-11-18 | CARTER BRIAN N | SVP, Corporate Controller | Grant | 11K | $0.00 | $0 | 61K |
| 2025-11-18 | CARTER BRIAN N | SVP, Corporate Controller | Tax withholding | 1K | $35.69 | $44K | 50K |
| 2025-11-18 | CARTER BRIAN N | SVP, Corporate Controller | Exercise or conversion | 1K | $0.00 | $0 | 51K |
| 2025-11-18 | CARTER BRIAN N | SVP, Corporate Controller | Exercise or conversion | 995 | $0.00 | $0 | 50K |
| 2025-08-14 | Birkenbeuel Gary | Director | Sell | 2K | $36.00 | $86K | 38K |
| 2025-02-27 | Douglas John M. | Director | Tax withholding | 108 | $27.91 | $3K | 610 |
| 2025-02-27 | Douglas John M. | Director | Exercise or conversion | 718 | $27.91 | $20K | 718 |
| 2025-02-05 | Volpi Kirsten M | Director | Gift | 4K | $0.00 | $0 | 62K |
| 2025-02-05 | Volpi Kirsten M | Director | Exercise or conversion | 6K | $9.59 | $58K | 66K |
| 2025-02-04 | Volpi Kirsten M | Director | Sell | 2K | $34.41 | $57K | 69K |
| 2025-02-04 | Volpi Kirsten M | Director | Sell | 4K | $34.33 | $141K | 65K |
| 2025-02-04 | Volpi Kirsten M | Director | Sell | 4K | $34.31 | $149K | 60K |
| 2025-01-01 | Birkenbeuel Gary | Director | Exercise or conversion | 2K | $0.00 | $0 | 45K |
| 2025-01-01 | Birkenbeuel Gary | Director | Grant | 5K | $0.00 | $0 | 43K |
| 2024-11-30 | Argus Roger R | President, Commer/Int'l Group | Tax withholding | 2K | $41.51 | $63K | 26K |
| 2024-11-30 | Argus Roger R | President, Commer/Int'l Group | Exercise or conversion | 3K | $0.00 | $0 | 27K |
| 2024-11-30 | BATRACK DAN L | Chairman, CEO and President | Exercise or conversion | 21K | $0.00 | $0 | 237K |
| 2024-11-30 | BATRACK DAN L | Chairman, CEO and President | Tax withholding | 12K | $41.51 | $486K | 226K |
| 2024-11-30 | BURDICK STEVEN M | EVP, CFO | Tax withholding | 2K | $41.51 | $83K | 131K |
| 2024-11-30 | BURDICK STEVEN M | EVP, CFO | Exercise or conversion | 4K | $0.00 | $0 | 133K |
| 2024-11-30 | CARTER BRIAN N | SVP, Corporate Controller | Tax withholding | 828 | $41.51 | $34K | 49K |
| 2024-11-30 | CARTER BRIAN N | SVP, Corporate Controller | Exercise or conversion | 2K | $0.00 | $0 | 50K |
| 2024-11-30 | Gandhi Prashant | Director | Exercise or conversion | 2K | $0.00 | $0 | 11K |
| 2024-11-30 | Hopson Preston III | EVP, Chief Legal/Human Capital | Exercise or conversion | 3K | $0.00 | $0 | 65K |
| 2024-11-30 | Hopson Preston III | EVP, Chief Legal/Human Capital | Tax withholding | 1K | $41.51 | $45K | 64K |
| 2024-11-30 | Obiaya Christiana | Director | Exercise or conversion | 2K | $0.00 | $0 | 4K |
| 2024-11-30 | SHOEMAKER LESLIE L | EVP, Chief Sustainability | Tax withholding | 2K | $41.51 | $70K | 308K |
| 2024-11-30 | SHOEMAKER LESLIE L | EVP, Chief Sustainability | Exercise or conversion | 3K | $0.00 | $0 | 310K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON1 Form 144 notice on file for TTEK worth $401K at the prices reported; 0 in the last 90 days worth $0. Latest: BRIAN CARTER filed on 2026-02-04 to sell 9,979 shares ($401K) from 2026-02-04.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-02-04 | BRIAN CARTEROfficer | 10K | $401K | 0.004% | 2026-02-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON1 holder reports 5% or more of TTEK in its latest filing, on Schedule 13G (passive). The holder is Vanguard Capital Management at 5.2% of the class (13,656,856 shares), filed 2026-04-30 for an event on 2026-03-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-04-30 | 13G | Vanguard Capital Managementinvestment adviser | 13.7M | 5.2% | 2026-03-31 |
| 2026-03-27 | 13G/Ano. 16 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2025-10-17 | 13D/Ano. 2 | PICTET ASSET MANAGEMENT SAinvestment adviser | 13.0M | 4.9% | 2025-10-16 |
13F holders
Tracked managers holding TTEK at their latest 13F. JSON8 of the 30 tracked managers held TTEK at their latest 13F, $224.8M in total at quarter-end prices. AQR Capital Management is the largest at $117.1M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 3 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| AQR Capital Management | 2026-06-30 | 4.1M | $117.1M | 0.04% | +2.6M |
| Citadel Advisors | 2026-06-30 | 1.3M | $37.2M | 0.00% | -453K |
| Point72 Asset Management | 2026-06-30 | 1.0M | $29.2M | 0.03% | +469K |
| Fisher Asset Management | 2026-06-30 | 648K | $18.7M | 0.01% | +35K |
| Bridgewater Associates | 2026-06-30 | 608K | $17.6M | 0.07% | +394K |
| Two Sigma Investments | 2026-06-30 | 154K | $4.5M | 0.00% | -29K |
| Millennium Management | 2026-06-30 | 11K | $332K | 0.00% | -255K |
| D. E. Shaw & Co. | 2026-06-30 | 8K | $239K | 0.00% | new |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn Q3 FY 2026 (quarter ended 2026-06-28) Tetra Tech reported revenue of $1.31B, down 4.5% from the same quarter a year earlier (0.42 diluted EPS). In FY 2025 it generated $457.7M of operating cash flow and spent $250.0M on buybacks and $65.0M on dividends. As of 2026-06-28, cash was $230.8M against $803.5M of debt.
- Cash
- $230.8M
- Debt
- $803.5M
- Equity
- $1.85B
- Total assets
- $4.39B
- Shares outstanding
- 256,044,428
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q3 FY 2026 | 2026-06-28 | $1.31B | n/a | n/a | 0.42 |
| Q2 FY 2026 | 2026-03-29 | $1.22B | n/a | n/a | 0.36 |
| Q1 FY 2026 | 2025-12-28 | $1.21B | n/a | n/a | 0.40 |
| Q4 FY 2025 | 2025-09-28 | $1.33B | n/a | n/a | 0.48 |
| Q3 FY 2025 | 2025-06-29 | $1.37B | $113.8M | 8.3% | 0.43 |
| Q2 FY 2025 | 2025-03-30 | $1.32B | $5.4M | 0.4% | 0.02 |
| Q1 FY 2025 | 2024-12-29 | $1.42B | n/a | n/a | 0.00 |
| Q4 FY 2024 | 2024-09-29 | $1.37B | n/a | n/a | 0.35 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-09-28 | $5.44B | n/a | $457.7M | $18.6M | $250.0M | $65.0M |
| FY 2024 | 2024-09-29 | $5.20B | n/a | $358.7M | $18.1M | $0 | $58.8M |
| FY 2023 | 2023-10-01 | $4.52B | n/a | $368.5M | $26.9M | $0 | $52.1M |
| FY 2022 | 2022-10-02 | $3.50B | n/a | $336.2M | $10.6M | $200.0M | $46.1M |
| FY 2021 | 2021-10-03 | $3.21B | n/a | $304.4M | $8.6M | $60.0M | $40.0M |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-28; shares outstanding as of 2026-07-20 from the cover page.
Federal contracts
The largest contract actions for Tetra Tech and its subsidiaries. JSON61 contract actions on file for TTEK: $39.9M obligated in the last 90 days and $74.3M in the last 12 months across 10 awarding agencies. The largest was $16.5M from the Department of State on 2026-07-22 (exercise oy3). This covers the largest contract actions, not every award, and agencies report late.
| Action date | Agency | Amount | Type | Description |
|---|---|---|---|---|
| 2026-10-22 | Environmental Protection AgencyEnvironmental Protection Agency | $217K | mod P00003delivery order | AH12 - TECHNICAL SUPPORT FOR DISTRICT OF COLUMBIA BACTERIA TMDL MODELING AND DEVELOPMENTUSAspending |
| 2026-10-22 | Environmental Protection AgencyEnvironmental Protection Agency | $154K | mod P00003delivery order | R7 START VI: FORMER UNITED ZINC AND ASSOCIATED SMELTERS DATA SUPPORT, FIELD SAMPLING, AND TECHNICAL SUPPORT FOR REMEDIAL ACTIVITIES. MOD P00003: THE PURPOSE OF THIS MODIFICATION IT TO PROVIDE ADDITIONAL FUNDING FOR ADDITIONAL LEVEL OF EFFORT.USAspending |
| 2026-10-05 | Environmental Protection AgencyEnvironmental Protection Agency | $129K | new awarddelivery order | REGION 4 START VI SUPERFUND GEOSPATIAL SUPPORTUSAspending |
| 2026-10-02 | Environmental Protection AgencyEnvironmental Protection Agency | $150K | mod P00006delivery order | REGION 5, SUPERFUND TECHNICAL ASSESSMENT & RESPONSE TEAM VI (START VI). THE PURPOSE OF THIS MODIFICATION IS TO OBLIGATE OF FUNDS.USAspending |
| 2026-09-26 | Department of StateDepartment of State | $0 | mod P00010delivery order | MONITORING, EVALUATION AND AUDIT SERVICES FOR UKRAINE REPORTING (MEASURE) - ADD A/CORUSAspending |
| 2026-09-24 | Department of the InteriorDepartmental Offices | $2.0M | new awarddelivery order | HAWAII LAND RETENTION EISUSAspending |
| 2026-09-21 | Environmental Protection AgencyEnvironmental Protection Agency | $2.3M | new awarddelivery order | CROSS BROTHERS SUPERFUND SITE, SSID 0586, NEW SEMD SFGLAES TETRATECH TASK ORDER, CONTRACT 68HE0523D0004.USAspending |
| 2026-09-21 | National Aeronautics and Space AdministrationNational Aeronautics and Space Administration | $758K | mod P00005bpa call | ENVIRONMENTAL SERVICES AT ARMSTRONG FLIGHT RESEARCH CENTER (AFRC) UNDER THE NASA ENVIRONMENTAL SUPPORT SERVICES (NESS) BLANKET PURCHASE AGREEMENT (BPA).USAspending |
| 2026-09-20 | Department of Homeland SecurityU.S. Coast Guard | $700K | new awarddelivery order | A/E SERVICES TO PERFORM ENVIRONMENTAL DUE DILIGENCE ASSESSMENTS AT USCG LIGHTHOUSES AND STATIONS, VICENTE, EAST BROTHERS, CAPE BLANCO, LIME POINT, AND POINT DIABLO LIGHTS, CALIFORNIA AND OREGON.USAspending |
| 2026-09-10 | National Aeronautics and Space AdministrationNational Aeronautics and Space Administration | $1.2M | mod P00004delivery order | TASK ORDER - MAIN BASE NORTH AT WALLOPS FLIGHT FACILITY, WALLOPS ISLAND, VA. ISSUED UNDER - KSC NASA ENVIRONMENTAL RESTORATION AND COMPLIANCE CONTRACT (NERCC).USAspending |
| 2026-09-09 | Environmental Protection AgencyEnvironmental Protection Agency | $5.0M | mod P00008delivery order | P00008 - LEVEL-OF-EFFORT (LOE) AND FUNDING INCREASE, TO 0015 NAUM PROGRAM DEVELOPMENT & SUPPORT - NAVAJO NATION AUM RESPONSE ASSESSMENT AND EVALUATION SERVICES (RAES) II FOR EPA FOR REGIONS 6 & 9.USAspending |
| 2026-09-09 | Environmental Protection AgencyEnvironmental Protection Agency | $595K | mod P00005delivery order | THE PURPOSE OF THIS BILATERAL MODIFICATION P00005 IS TO INCREASE THE LEVEL-OF-EFFORT (LOE) AND FUNDING, INCORPORATE A WORK PLAN/COST PLAN (WP/CP) ESTIMATES, REVISED SOW, EXTEND THE PERIOD OF PERFORMANCE (POP), AND REMOVE AND ADD A TOCOR FOR THE OLD CUSAspending |
| 2026-09-08 | Department of StateDepartment of State | $1.6M | mod P00020delivery order | ADD INCREMENTAL FUNDING.USAspending |
| 2026-09-04 | National Aeronautics and Space AdministrationNational Aeronautics and Space Administration | $709K | mod P00001delivery order | GRC PFAS REMEDIATION SERVICESUSAspending |
| 2026-09-04 | Department of Homeland SecurityU.S. Coast Guard | $289K | new awarddelivery order | SPILL PREVENTION CONTROL AND COUNTERMEASURES (SPCCP) PLAN AT MULTIPLE COAST GUARD FACILITIES DISTRICTS SOUTHEAST & HEARTLANDUSAspending |
| 2026-09-02 | Environmental Protection AgencyEnvironmental Protection Agency | $1.0M | new awarddelivery order | REGION 4 START VI REMOVAL SITE EVALUATIONSUSAspending |
| 2026-09-01 | Department of the InteriorBureau of Ocean Energy Management | $1.4M | new awardbpa call | TECHNICAL SUPPORT FOR OFFSHORE MINERAL LEASING AND OPERATIONS ON THE OUTER CONTINENTAL SHELFUSAspending |
| 2026-09-01 | National Aeronautics and Space AdministrationNational Aeronautics and Space Administration | $1.4M | mod P00003delivery order | RESTORATION SERVICES AT LAUNCH COMPLEX 34, CAPE CANAVERAL SPACE FORCE STATION, FLORIDA. TASK ORDER UNDER NASA ENVIRONMENTAL RESTORATION AND COMPLIANCE CONTRACT (NERCC).USAspending |
| 2026-08-27 | Environmental Protection AgencyEnvironmental Protection Agency | $724K | mod P00024delivery order | EMERGENCY RESPONSE TEAM (ERT) TECHNICAL SUPPORT SERVICES. P00024: EXTEND THE TASK ORDER END DATE 6 MONTHS AND INCREASE THE CEILING COMMENSURATELY AS A LOGICAL FOLLOW-ON IN ACCORDANCE WITH FEDERAL ACQUISITION REGULATION (FAR) (GSAR) SUBPART 538.7104-3USAspending |
| 2026-08-26 | Environmental Protection AgencyEnvironmental Protection Agency | $715K | new awarddelivery order | START CERCLAUSAspending |
| 2026-08-24 | Environmental Protection AgencyEnvironmental Protection Agency | $1.0M | new awarddelivery order | REGION 4 START VI SUPERFUND REMOVAL ACTIONS CERCLAUSAspending |
| 2026-08-21 | Environmental Protection AgencyEnvironmental Protection Agency | $5.0M | mod P00007delivery order | THE PURPOSE OF THIS BILATERAL MODIFICATION (P00007) IS TO INCREASE AND FUND LOE INCREASE AND POP EXTENSION FOR N. AGENCY EE/CA - TO #0007 (DO #68HE0923F0051) ON RAES2 CONTRACT #68HE0923D0002.USAspending |
| 2026-08-21 | Environmental Protection AgencyEnvironmental Protection Agency | $523K | mod P00002delivery order | THE PURPOSE OF THIS MODIFICATION (P00002) IS TO INCREASE THE LEVEL-OF-EFFORT (LOE) AND FUNDING FOR JACKPILE-PAGUATE URANIUM MINE SUPERFUND SITE.USAspending |
| 2026-08-18 | Environmental Protection AgencyEnvironmental Protection Agency | $1.0M | new awarddelivery order | REGION 4 START VI PREPAREDNESS AND PREVENTION ACTIVITIESUSAspending |
| 2026-08-14 | Environmental Protection AgencyEnvironmental Protection Agency | $1.1M | mod P00001delivery order | SHIAWASSEE RIVER. SSID 051D.: R5,(SFGLAES),SEMD, TETRA TECH (68HE0523D0004), RIFS MODIFICATION P00001: 1) FUND TO YEAR 2 TASKS FOR $1,097,509.58 2) UPDATE TOCORUSAspending |
| 2026-08-13 | Environmental Protection AgencyEnvironmental Protection Agency | $2.1M | new awarddelivery order | START CERCLAUSAspending |
| 2026-08-12 | Environmental Protection AgencyEnvironmental Protection Agency | $1.0M | new awarddelivery order | R4 START VI EMERGENCY RESPONSE CERCLA ACTIONSUSAspending |
| 2026-08-10 | Environmental Protection AgencyEnvironmental Protection Agency | $550K | mod P00034delivery order | REGION 5, SUPERFUND TECHNICAL ASSESSMENT & RESPONSE TEAM VI (START VI). ADMINISTER 10-TOLINS AND TO OBLIGATE FUNDS TO THIS TASK ORDER.USAspending |
| 2026-08-06 | Department of EnergyDepartment of Energy | $1.5M | mod P00002bpa call | TECHNICAL SUPPORT SERVICES FOR NATIONAL ENVIRONMENTAL POLICY ACT (NEPA) COMPLIANCE ASSOCIATED WITH SITE-WIDE DOCUMENT DEVELOPMENT FOR DEPARTMENT OF ENERGY/NATIONAL NUCLEAR SECURITY ADMINISTRATIONS OFFICE OF ENVIRONMENT, SAFETY, AND HEALTH.USAspending |
| 2026-08-06 | Environmental Protection AgencyEnvironmental Protection Agency | $472K | mod P00004bpa call | ENVIRONMENTAL RESPONSE TRAINING PROGRAM - LARGE BPA. LIMITED COMBINED ADMIN & OIL CALL ORDER. MOD 00004 - OBLIGATE FUNDS AND DEOBLIGATE UNUSED FUNDS.USAspending |
| 2026-08-04 | Department of AgricultureForest Service | $1.3M | mod P00005bpa call | NFWP AMENDMENT NEPAUSAspending |
| 2026-08-03 | Department of TransportationFederal Railroad Administration | $911K | mod P00012definitive contract | TO FUND ADDITIONAL SURVEY DAYS UNDER OPTION YEAR 3 OF CONTRACT 693JJ623C000004 WITH TETRA TECH IN THE TOTAL AMOUNT OF $911,100.USAspending |
| 2026-08-03 | Environmental Protection AgencyEnvironmental Protection Agency | $322K | new awarddelivery order | START SUPPORTON PROGRAM PREPAREDNESS AND RELEASE/DISCHARGE PREVENTIONUSAspending |
| 2026-07-31 | Environmental Protection AgencyEnvironmental Protection Agency | $1.4M | new awarddelivery order | R4 START VI WESTSIDE LEAD TASK ORDERUSAspending |
| 2026-07-30 | Millennium Challenge CorporationMillennium Challenge Corporation | $865K | mod P00006definitive contract | MCC REQUIRES A FIRM TO PROVIDE A WIDE RANGE OF TECHNICAL ASSISTANCE TASKS IN THE AREAS OF ENERGY TO SUPPORT EARLY STAGE OF COMPACT DEVELOPMENTUSAspending |
| 2026-07-24 | Department of CommerceNational Oceanic and Atmospheric Administration | $875K | new awarddelivery order | THE CONTRACTOR SHALL OPERATE AND ENHANCE THE MODEL VIEWER, APPROVED VIA OR-FY26-02732, IN ACCORDANCE WITH THE SOW AND DTL IN SUPPORT OF THE OCM.USAspending |
| 2026-07-24 | National Aeronautics and Space AdministrationNational Aeronautics and Space Administration | $289K | mod P00016bpa call | ENVIRONMENTAL SERVICES AT STENNIS SPACE CENTER TO INCLUDE NASA SHARED SERVICES CENTER (NSSC) AND NATIONAL CENTER FOR CRITICAL INFORMATION PROCESSING AND STORAGE (NCCIPS).USAspending |
| 2026-07-22 | Department of StateDepartment of State | $16.5M | mod P00012delivery order | EXERCISE OY3USAspending |
| 2026-07-21 | Environmental Protection AgencyEnvironmental Protection Agency | $2.2M | new awardbpa call | OLEM LARGE MISSION SUPPORT CALL ORDER FOR LAND REVITALIZATION TECHNICAL ASSISTANCE, SITE VISIONING AND FINANCING SUPPORTUSAspending |
| 2026-07-20 | Millennium Challenge CorporationMillennium Challenge Corporation | $820K | new awarddelivery order | MCC REQUIRES INFRASTRUCTURE CONSULTING SERVICES FOR ROAD TRANSPORTATION INFRASTRUCTURE AND SERVICES.USAspending |
What this page is
Tetra Tech in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Tetra Tech (TTEK), SEC CIK 831641, listed on Nasdaq, classified by the SEC as services-engineering services. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-23.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-29.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-02-04.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-04-30.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-28.JSON and CSV
- Federal contracts
- USAspending.govSource: USAspending.gov.The largest contract actions each day, as agencies report them (up to 90 days late). Latest 2026-10-22.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-07-29.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-08-04.JSON and CSV
- Company record
- EDGAR filing index for CIK 831641Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of TTEK is sold short?
11,876,810 shares were held short at the 2026-09-30 settlement, 5.1 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is TTEK's daily short volume?
On 2026-10-23, 343,415 of the 736,259 TTEK shares reported to FINRA were sold short, 46.6% of the day's reported volume. Short volume is a flow for one day, not a position.
Does TTEK have fails to deliver?
The SEC's latest file shows 61 TTEK shares failed to deliver at settlement 2026-09-29. Fails are reported per settlement date and published twice a month with a lag.
Are TTEK insiders buying or selling?
No open-market insider trades were reported for TTEK in the last 90 days. The most recent filings are listed below. Latest filing: Volpi Kirsten M (Director) on 2026-08-04.
Have TTEK insiders filed to sell?
1 Form 144 notice on file for TTEK worth $401K at the prices reported; 0 in the last 90 days worth $0. Latest: BRIAN CARTER filed on 2026-02-04 to sell 9,979 shares ($401K) from 2026-02-04.
Who owns 5% or more of TTEK?
1 holder reports 5% or more of TTEK in its latest filing, on Schedule 13G (passive). The holder is Vanguard Capital Management at 5.2% of the class (13,656,856 shares), filed 2026-04-30 for an event on 2026-03-31.
What did TTEK report last quarter?
In Q3 FY 2026 (quarter ended 2026-06-28) Tetra Tech reported revenue of $1.31B, down 4.5% from the same quarter a year earlier (0.42 diluted EPS). In FY 2025 it generated $457.7M of operating cash flow and spent $250.0M on buybacks and $65.0M on dividends. As of 2026-06-28, cash was $230.8M against $803.5M of debt.
Which tracked 13F managers own TTEK?
8 of the 30 tracked 13F managers held TTEK shares at their latest filing, $224.8M in all. The largest: Cliff Asness's AQR Capital Management (4.1M shares, $117.1M), Ken Griffin's Citadel Advisors (1.3M shares, $37.2M), Steve Cohen's Point72 Asset Management (1.0M shares, $29.2M), Ken Fisher's Fisher Asset Management (648K shares, $18.7M), Ray Dalio's Bridgewater Associates (608K shares, $17.6M), Two Sigma Investments (154K shares, $4.5M). The table above lists all 8.
How much federal contract money did TTEK receive?
$39.9M was obligated to Tetra Tech and its subsidiaries in the last 90 days and $74.3M in the last 12 months, counting the largest contract actions on USAspending, not every award. Obligations are not revenue; they are spent over each contract's life.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.