Casella Waste Systems (CWST)
Casella Waste Systems on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as refuse systems.
5.1M
Short interest
settlement 2026-09-30
8.7
Days to cover
-2.7 days vs prior
61.7%
Short share of volume
2026-10-23
119
Fails to deliver
settlement 2026-09-21
Thu 29 Oct
Next earnings
estimated date
-$1.7M
Insider flow, 90 days
0 buys, 5 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 CWST is 5,063,987 shares, up 223,943 shares over the last month. Over the last 48 readings it ranged from 1,501,317 shares (28 February 2025) to 5,071,072 shares (15 September 2026). The latest reading sits at the top of that range. At the reported average volume of 585K shares a day that is 8.7 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 5,063,987 | -0.1% | 584,777 | 8.66 |
| 2026-09-15 | 5,071,072 | +4.8% | 444,453 | 11.41 |
| 2026-08-31 | 4,840,044 | +0.7% | 397,606 | 12.17 |
| 2026-08-14 | 4,805,288 | +2.7% | 528,012 | 9.10 |
| 2026-07-31 | 4,680,761 | -4.6% | 730,574 | 6.41 |
| 2026-07-15 | 4,904,523 | +6.8% | 609,862 | 8.04 |
| 2026-06-30 | 4,591,558 | +3.4% | 928,618 | 4.94 |
| 2026-06-15 | 4,442,757 | -2.5% | 588,290 | 7.55 |
| 2026-05-29 | 4,556,388 | +12.9% | 608,958 | 7.48 |
| 2026-05-15 | 4,036,892 | +1.0% | 796,547 | 5.07 |
| 2026-04-30 | 3,995,632 | -4.3% | 860,182 | 4.65 |
| 2026-04-15 | 4,174,053 | +1.4% | 865,918 | 4.82 |
| 2026-03-31 | 4,115,432 | +0.2% | 793,311 | 5.19 |
| 2026-03-13 | 4,106,391 | +14.0% | 1,007,030 | 4.08 |
| 2026-02-27 | 3,602,775 | -12.4% | 928,021 | 3.88 |
| 2026-02-13 | 4,114,877 | +3.9% | 587,195 | 7.01 |
| 2026-01-30 | 3,961,344 | -10.1% | 570,142 | 6.95 |
| 2026-01-15 | 4,405,712 | -4.7% | 623,043 | 7.07 |
| 2025-12-31 | 4,621,943 | +27.7% | 1,842,841 | 2.51 |
| 2025-12-15 | 3,619,789 | +15.2% | 989,387 | 3.66 |
| 2025-11-28 | 3,142,507 | +10.6% | 571,183 | 5.50 |
| 2025-11-14 | 2,842,430 | -3.0% | 611,077 | 4.65 |
| 2025-10-31 | 2,931,847 | -4.8% | 598,439 | 4.90 |
| 2025-10-15 | 3,079,211 | +14.6% | 445,811 | 6.91 |
| 2025-09-30 | 2,686,357 | +3.5% | 699,837 | 3.84 |
| 2025-09-15 | 2,595,897 | +3.1% | 464,592 | 5.59 |
| 2025-08-29 | 2,517,152 | +21.7% | 499,175 | 5.04 |
| 2025-08-15 | 2,067,851 | +24.5% | 726,531 | 2.85 |
| 2025-07-31 | 1,660,611 | -18.8% | 460,200 | 3.61 |
| 2025-07-15 | 2,045,366 | -7.8% | 310,157 | 6.59 |
| 2025-06-30 | 2,219,124 | -4.1% | 390,466 | 5.68 |
| 2025-06-13 | 2,314,568 | -3.8% | 363,551 | 6.37 |
| 2025-05-30 | 2,406,292 | +1.1% | 403,196 | 5.97 |
| 2025-05-15 | 2,378,857 | -4.4% | 589,615 | 4.03 |
| 2025-04-30 | 2,487,180 | +1.5% | 605,863 | 4.11 |
| 2025-04-15 | 2,450,276 | +33.4% | 724,597 | 3.38 |
| 2025-03-31 | 1,836,595 | -0.7% | 350,602 | 5.24 |
| 2025-03-14 | 1,848,581 | +23.1% | 438,667 | 4.21 |
| 2025-02-28 | 1,501,317 | -10.3% | 440,055 | 3.41 |
| 2025-02-14 | 1,673,342 | -7.3% | 336,991 | 4.97 |
| 2025-01-31 | 1,804,585 | +3.6% | 299,253 | 6.03 |
| 2025-01-15 | 1,742,072 | -22.6% | 266,664 | 6.53 |
| 2024-12-31 | 2,251,840 | +10.9% | 327,505 | 6.88 |
| 2024-12-13 | 2,030,709 | -4.5% | 268,061 | 7.58 |
| 2024-11-29 | 2,126,493 | +7.3% | 274,569 | 7.74 |
| 2024-11-15 | 1,981,307 | -1.2% | 336,775 | 5.88 |
| 2024-10-31 | 2,004,851 | +11.8% | 323,324 | 6.20 |
| 2024-10-15 | 1,792,484 | -18.9% | 294,620 | 6.08 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of CWST volume is 61.7%, down 18.7 points over the last five sessions. Over the last 30 readings it ranged from 36.0% (28 September 2026) to 85.1% (8 October 2026). The latest reading is in line with the 30-session average of 62.7%, on 271K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 167K | 271K | 61.7% | 87 |
| 2026-10-22 | 257K | 454K | 56.6% | 213 |
| 2026-10-21 | 158K | 221K | 71.5% | 3 |
| 2026-10-20 | 336K | 578K | 58.2% | 129 |
| 2026-10-19 | 176K | 268K | 65.9% | 0 |
| 2026-10-16 | 279K | 347K | 80.4% | 94 |
| 2026-10-15 | 190K | 321K | 59.2% | 0 |
| 2026-10-14 | 233K | 553K | 42.2% | 2,557 |
| 2026-10-13 | 109K | 187K | 58.1% | 334 |
| 2026-10-12 | 138K | 184K | 74.6% | 12 |
| 2026-10-09 | 131K | 175K | 74.8% | 1,074 |
| 2026-10-08 | 192K | 226K | 85.1% | 3,548 |
| 2026-10-07 | 175K | 207K | 84.7% | 0 |
| 2026-10-06 | 208K | 270K | 76.9% | 7,981 |
| 2026-10-05 | 244K | 307K | 79.5% | 21 |
| 2026-10-02 | 266K | 410K | 64.8% | 0 |
| 2026-10-01 | 189K | 319K | 59.4% | 0 |
| 2026-09-30 | 146K | 320K | 45.6% | 0 |
| 2026-09-29 | 85K | 222K | 38.1% | 0 |
| 2026-09-28 | 91K | 252K | 36.0% | 200 |
| 2026-09-25 | 75K | 153K | 49.1% | 1 |
| 2026-09-24 | 69K | 162K | 42.6% | 0 |
| 2026-09-23 | 151K | 281K | 53.8% | 1,645 |
| 2026-09-22 | 176K | 319K | 55.2% | 403 |
| 2026-09-21 | 143K | 242K | 59.2% | 0 |
| 2026-09-18 | 208K | 337K | 61.6% | 0 |
| 2026-09-17 | 133K | 180K | 73.9% | 13,365 |
| 2026-09-16 | 140K | 170K | 82.5% | 4,896 |
| 2026-09-15 | 97K | 151K | 64.2% | 711 |
| 2026-09-14 | 105K | 158K | 66.2% | 2,770 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 21 September 2026, the fails-to-deliver balance in CWST is 119 shares, up 114 shares over the last settlement date. Over the last 30 readings it ranged from 3 shares (6 July 2026) to 149,102 shares (8 June 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-21 | 119 | $89.07 | $11K |
| 2026-09-17 | 5 | $90.06 | $450 |
| 2026-09-15 | 21,081 | $90.95 | $1.9M |
| 2026-09-14 | 20 | $89.91 | $2K |
| 2026-09-11 | 113,750 | $89.94 | $10.2M |
| 2026-09-10 | 2,158 | $91.16 | $197K |
| 2026-09-09 | 412 | $92.07 | $38K |
| 2026-09-03 | 958 | $93.40 | $89K |
| 2026-08-31 | 33 | $93.68 | $3K |
| 2026-08-25 | 4 | $94.78 | $379 |
| 2026-08-21 | 692 | $93.05 | $64K |
| 2026-08-20 | 8,677 | $92.85 | $806K |
| 2026-08-12 | 4 | $92.52 | $370 |
| 2026-08-11 | 4 | $89.99 | $360 |
| 2026-08-10 | 6,163 | $89.41 | $551K |
| 2026-08-03 | 17 | $89.71 | $2K |
| 2026-07-21 | 1,172 | $93.57 | $110K |
| 2026-07-14 | 533 | $98.09 | $52K |
| 2026-07-08 | 18 | $99.01 | $2K |
| 2026-07-06 | 3 | $97.49 | $292 |
| 2026-07-02 | 25 | $95.36 | $2K |
| 2026-07-01 | 613 | $96.97 | $59K |
| 2026-06-29 | 16,400 | $94.35 | $1.5M |
| 2026-06-25 | 190 | $91.24 | $17K |
| 2026-06-24 | 95 | $86.18 | $8K |
| 2026-06-22 | 1,618 | $86.98 | $141K |
| 2026-06-18 | 4,536 | $86.10 | $391K |
| 2026-06-11 | 9 | $91.03 | $819 |
| 2026-06-10 | 28 | $87.81 | $2K |
| 2026-06-08 | 149,102 | $85.90 | $12.8M |
Insider trades
SEC Form 4, newest first. JSONInsiders at CWST reported 5 open-market sells worth $1.7M in the last 90 days and no open-market buys. Latest filing: BURKE MICHAEL K (Director) on 2026-09-03.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-03 | BURKE MICHAEL K | Director | Sell | 1K | $95.26 | $105K | 14K |
| 2026-08-26 | BURKE MICHAEL K | Director | Sell | 1K | $92.99 | $102K | 15K |
| 2026-08-14 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Sell | 1K | $91.12 | $122K | 90K |
| 2026-08-13 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Sell | 13K | $91.07 | $1.2M | 91K |
| 2026-08-13 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Sell | 2K | $90.89 | $167K | 105K |
| 2026-06-08 | Green Emily Nagle | Director | Gift | 600 | $0.00 | $0 | 17K |
| 2026-06-04 | Sova Gary | Director | Grant | 2K | $83.65 | $150K | 8K |
| 2026-06-04 | Kirk Rose M. | Director | Grant | 2K | $83.65 | $150K | 10K |
| 2026-06-04 | Green Emily Nagle | Director | Grant | 2K | $83.65 | $150K | 18K |
| 2026-06-04 | HULLIGAN WILLIAM P | Director | Grant | 2K | $83.65 | $150K | 8K |
| 2026-06-04 | DOODY JOSEPH | Director | Grant | 2K | $83.65 | $150K | 13K |
| 2026-06-04 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Grant | 2K | $83.65 | $150K | 107K |
| 2026-06-04 | Battles Michael Louis | Director | Grant | 2K | $83.65 | $150K | 10K |
| 2026-06-04 | BURKE MICHAEL K | Director | Grant | 2K | $83.65 | $150K | 16K |
| 2026-06-01 | CASELLA JOHN W | Director | Gift | 31K | $0.00 | $0 | 168K |
| 2026-06-01 | CASELLA JOHN W | Director | Gift | 36K | $0.00 | $0 | 170K |
| 2026-06-01 | CASELLA JOHN W | Director | Gift | 31K | $0.00 | $0 | 26K |
| 2026-06-01 | CASELLA JOHN W | Director | Gift | 36K | $0.00 | $0 | 130K |
| 2026-05-26 | BURKE MICHAEL K | Director | Sell | 2K | $87.56 | $202K | 14K |
| 2026-05-19 | Coletta Edmond | PRESIDENT & CEO | Sell | 5K | $90.07 | $442K | 140K |
| 2026-05-19 | Coletta Edmond | PRESIDENT & CEO | Sell | 2K | $90.00 | $143K | 145K |
| 2026-05-19 | Coletta Edmond | PRESIDENT & CEO | Sell | 6K | $89.03 | $534K | 147K |
| 2026-03-18 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Gift | 40K | $0.00 | $0 | 177K |
| 2026-03-18 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Gift | 40K | $0.00 | $0 | 171K |
| 2026-03-18 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Gift | 40K | $0.00 | $0 | 129K |
| 2026-03-17 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Gift | 33K | $0.00 | $0 | 164K |
| 2026-03-17 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Gift | 33K | $0.00 | $0 | 170K |
| 2026-03-17 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Gift | 33K | $0.00 | $0 | 24K |
| 2026-03-16 | Steves Sean | Sr VP & COO of SW Ops | Sell | 197 | $87.80 | $17K | 9K |
| 2026-03-16 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell | 85 | $87.73 | $7K | 8K |
| 2026-03-16 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell | 362 | $87.73 | $32K | 28K |
| 2026-03-16 | Helgeson Bradford John | Executive VP and CFO | Sell | 405 | $87.73 | $36K | 7K |
| 2026-03-16 | Coletta Edmond | PRESIDENT & CEO | Sell | 988 | $87.81 | $87K | 153K |
| 2026-03-16 | CASELLA JOHN W | Director | Sell | 2K | $87.77 | $153K | 31K |
| 2026-03-16 | Rains Christopher Alan | Sr. VP & Chief Revenue Officer | Grant | 989 | $0.00 | $0 | 989 |
| 2026-03-12 | Steves Sean | Sr VP & COO of SW Ops | Sell | 97 | $89.71 | $9K | 10K |
| 2026-03-12 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell | 55 | $89.52 | $5K | 8K |
| 2026-03-12 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Grant | 551 | $0.00 | $0 | 8K |
| 2026-03-12 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell | 129 | $89.71 | $12K | 29K |
| 2026-03-12 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Grant | 2K | $0.00 | $0 | 29K |
| 2026-03-12 | Helgeson Bradford John | Executive VP and CFO | Grant | 3K | $0.00 | $0 | 8K |
| 2026-03-12 | Coletta Edmond | PRESIDENT & CEO | Sell | 377 | $89.80 | $34K | 154K |
| 2026-03-12 | Coletta Edmond | PRESIDENT & CEO | Grant | 7K | $0.00 | $0 | 154K |
| 2026-03-12 | CASELLA JOHN W | Director | Sell | 963 | $90.06 | $87K | 33K |
| 2026-03-12 | CASELLA JOHN W | Director | Grant | 6K | $0.00 | $0 | 34K |
| 2026-02-27 | Steves Sean | Sr VP & COO of SW Ops | Sell | 1K | $92.89 | $111K | 10K |
| 2026-02-27 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell | 675 | $92.61 | $63K | 7K |
| 2026-02-27 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell | 2K | $92.91 | $148K | 27K |
| 2026-02-27 | Coletta Edmond | PRESIDENT | Sell | 4K | $93.70 | $357K | 147K |
| 2026-02-27 | CASELLA JOHN W | CHIEF EXECUTIVE OFFICER | Sell | 7K | $93.10 | $626K | 28K |
| 2026-02-26 | Steves Sean | Sr VP & COO of SW Ops | Grant | 3K | $0.00 | $0 | 11K |
| 2026-02-26 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Grant | 2K | $0.00 | $0 | 8K |
| 2026-02-26 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Grant | 5K | $0.00 | $0 | 29K |
| 2026-02-26 | Coletta Edmond | PRESIDENT | Grant | 10K | $0.00 | $0 | 151K |
| 2026-02-26 | CASELLA JOHN W | CHIEF EXECUTIVE OFFICER | Grant | 23K | $0.00 | $0 | 35K |
| 2025-12-08 | Coletta Edmond | PRESIDENT | Sell | 7K | $100.07 | $700K | 141K |
| 2025-12-08 | Coletta Edmond | PRESIDENT | Gift | 2K | $0.00 | $0 | 148K |
| 2025-12-08 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Gift | 4K | $0.00 | $0 | 105K |
| 2025-11-07 | Helgeson Bradford John | Executive VP and CFO | Sell | 262 | $87.65 | $23K | 5K |
| 2025-11-05 | Green Emily Nagle | Director | Gift | 1K | $0.00 | $0 | 16K |
| 2025-11-04 | Green Emily Nagle | Director | Sell | 1K | $89.38 | $100K | 6K |
| 2025-08-04 | Ligon Paul | SR VP of Sustainable Growth | Sell | 1K | $102.84 | $103K | 18K |
| 2025-06-05 | Kirk Rose M. | Director | Grant | 1K | $115.17 | $140K | 8K |
| 2025-06-05 | Battles Michael Louis | Director | Grant | 1K | $115.17 | $140K | 8K |
| 2025-06-05 | BURKE MICHAEL K | Director | Grant | 1K | $115.17 | $140K | 16K |
| 2025-06-05 | Sova Gary | Director | Grant | 1K | $115.17 | $140K | 6K |
| 2025-06-05 | Green Emily Nagle | Director | Grant | 1K | $115.17 | $140K | 17K |
| 2025-06-05 | DOODY JOSEPH | Director | Grant | 1K | $115.17 | $140K | 11K |
| 2025-06-05 | DOODY JOSEPH | Director | Grant | 434 | $115.17 | $50K | 11K |
| 2025-06-05 | HULLIGAN WILLIAM P | Director | Grant | 1K | $115.17 | $140K | 6K |
| 2025-06-03 | Ligon Paul | SR VP of Sustainable Growth | Sell | 1K | $116.98 | $117K | 19K |
| 2025-05-08 | CASELLA JOHN W | CHIEF EXECUTIVE OFFICER | Sell | 18K | $119.87 | $2.2M | 11K |
| 2025-05-06 | Coletta Edmond | PRESIDENT | Sell | 6K | $119.18 | $663K | 150K |
| 2025-04-16 | Ligon Paul | SR VP of Sustainable Growth | Sell | 400 | $118.66 | $47K | 21K |
| 2025-04-16 | Ligon Paul | SR VP of Sustainable Growth | Sell | 800 | $117.65 | $94K | 22K |
| 2025-04-16 | Ligon Paul | SR VP of Sustainable Growth | Sell | 700 | $119.62 | $84K | 20K |
| 2025-04-16 | Ligon Paul | SR VP of Sustainable Growth | Sell | 100 | $120.32 | $12K | 20K |
| 2025-03-13 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Sell | 200 | $103.93 | $21K | 109K |
| 2025-03-13 | Helgeson Bradford John | Executive VP and CFO | Sell | 197 | $103.87 | $20K | 5K |
| 2025-03-13 | Steves Sean | Sr VP & COO of SW Ops | Sell | 108 | $104.13 | $11K | 7K |
| 2025-03-13 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell | 206 | $103.95 | $21K | 24K |
| 2025-03-13 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell | 57 | $104.00 | $6K | 6K |
| 2025-03-13 | Ligon Paul | SR VP of Sustainable Growth | Sell | 57 | $104.06 | $6K | 22K |
| 2025-03-13 | CASELLA JOHN W | CHIEF EXECUTIVE OFFICER | Sell | 865 | $104.23 | $90K | 30K |
| 2025-03-13 | Coletta Edmond | PRESIDENT | Sell | 456 | $104.07 | $47K | 161K |
| 2025-03-13 | Coletta Edmond | PRESIDENT | Sell | 5K | $105.00 | $525K | 156K |
| 2025-03-12 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Sell | 224 | $106.33 | $24K | 109K |
| 2025-03-12 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Sell | 272 | $107.26 | $29K | 109K |
| 2025-03-12 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Grant | 2K | $0.00 | $0 | 109K |
| 2025-03-12 | Helgeson Bradford John | Executive VP and CFO | Grant | 2K | $0.00 | $0 | 5K |
| 2025-03-12 | Steves Sean | Sr VP & COO of SW Ops | Sell | 71 | $106.18 | $8K | 8K |
| 2025-03-12 | Steves Sean | Sr VP & COO of SW Ops | Grant | 951 | $0.00 | $0 | 8K |
| 2025-03-12 | Steves Sean | Sr VP & COO of SW Ops | Sell | 100 | $106.98 | $11K | 8K |
| 2025-03-12 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Grant | 1K | $0.00 | $0 | 25K |
| 2025-03-12 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell | 166 | $106.18 | $18K | 24K |
| 2025-03-12 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell | 215 | $106.98 | $23K | 25K |
| 2025-03-12 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Grant | 475 | $0.00 | $0 | 6K |
| 2025-03-12 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell | 59 | $106.37 | $6K | 6K |
| 2025-03-12 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell | 72 | $106.97 | $8K | 6K |
| 2025-03-12 | Ligon Paul | SR VP of Sustainable Growth | Sell | 71 | $106.18 | $8K | 22K |
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. JSON18 Form 144 notices on file for CWST worth $2.7M at the prices reported; 1 in the last 90 days worth $167K. Latest: CASELLA DOUGLAS R filed on 2026-08-13 to sell 1,838 shares ($167K) from 2026-08-13.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-08-13 | CASELLA DOUGLAS ROfficer, Director | 2K | $167K | 0.003% | 2026-08-13 | Raymond James and Associates |
| 2026-05-19 | Coletta EdmondOfficer | 8K | $677K | 0.012% | 2026-05-19 | Raymond James & Associates |
| 2026-03-16 | Coletta EdmondOfficer | 988 | $87K | 0.002% | 2026-03-16 | Raymond James & Associates |
| 2026-03-16 | Helgeson Bradford JohnOfficer | 405 | $36K | 0.001% | 2026-03-16 | Raymond James & Associates |
| 2026-03-16 | Steves SeanOfficer | 197 | $17K | 0.000% | 2026-03-16 | Raymond James & Associates |
| 2026-03-16 | Drohan KevinOfficer | 85 | $7K | 0.000% | 2026-03-16 | Raymond James & Associates |
| 2026-03-16 | Sayward Shelley E.Officer | 362 | $32K | 0.001% | 2026-03-16 | Raymond James & Associates |
| 2026-03-16 | John W. CasellaOfficer | 2K | $153K | 0.003% | 2026-03-16 | Raymond James & Associates, Inc. |
| 2026-03-12 | Coletta EdmondOfficer | 377 | $34K | 0.001% | 2026-03-12 | RAYMOND JAMES & ASSOCIATES, INC. |
| 2026-03-12 | Steves SeanOfficer | 97 | $9K | 0.000% | 2026-03-12 | RAYMOND JAMES & ASSOCIATES, INC. |
| 2026-03-12 | Sayward Shelley E.Officer | 129 | $12K | 0.000% | 2026-03-12 | RAYMOND JAMES & ASSOCIATES, INC. |
| 2026-03-12 | Drohan KevinOfficer | 55 | $5K | 0.000% | 2026-03-12 | Raymond James & Associates |
| 2026-03-12 | CASELLA JOHN WOfficer | 963 | $87K | 0.002% | 2026-03-12 | RAYMOND JAMES & ASSOCIATES, INC. |
| 2026-02-27 | Sayward Shelley E.Officer | 2K | $148K | 0.003% | 2026-02-27 | Raymond James & Associates |
| 2026-02-27 | Steves SeanOfficer | 1K | $111K | 0.002% | 2026-02-27 | Raymond James & Associates |
| 2026-02-27 | Coletta EdmondOfficer | 4K | $376K | 0.006% | 2026-02-27 | Raymond James & Associates |
| 2026-02-27 | Drohan KevinOfficer | 675 | $63K | 0.001% | 2026-02-27 | Raymond James & Associates |
| 2026-02-27 | CASELLA JOHN WOfficer | 7K | $644K | 0.011% | 2026-02-27 | Raymond James & Associates |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON3 holders report 5% or more of CWST in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 14.3% of the class (8,928,731 shares), filed 2026-01-08 for an event on 2025-12-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-10-09 | 13G/Ano. 1 | Wasatch Advisors LPinvestment adviser | 3.1M | 4.9% | 2026-09-30 |
| 2026-04-29 | 13G | Vanguard Portfolio Managementinvestment adviser | 3.4M | 5.5% | 2026-03-31 |
| 2026-04-29 | 13G | Vanguard Capital Managementinvestment adviser | 3.3M | 5.2% | 2026-03-31 |
| 2026-03-26 | 13G/Ano. 5 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-01-08 | 13G/Ano. 14 | BlackRock, Inc.parent holding company | 8.9M | 14.3% | 2025-12-31 |
13F holders
Tracked managers holding CWST at their latest 13F. JSON6 of the 30 tracked managers held CWST at their latest 13F, $95.2M in total at quarter-end prices. Citadel Advisors is the largest at $44.2M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Citadel Advisors | 2026-06-30 | 456K | $44.2M | 0.01% | +421K |
| Point72 Asset Management | 2026-06-30 | 446K | $43.2M | 0.05% | -18K |
| Fisher Asset Management | 2026-06-30 | 35K | $3.4M | 0.00% | +7K |
| AQR Capital Management | 2026-06-30 | 27K | $2.6M | 0.00% | +11K |
| Two Sigma Investments | 2026-06-30 | 15K | $1.5M | 0.00% | +2K |
| Millennium Management | 2026-06-30 | 3K | $294K | 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 Q2 FY 2026 (quarter ended 2026-06-30) Casella Waste Systems reported revenue of $543.7M, up 16.9% from the same quarter a year earlier, and net income of $3.8M (0.06 diluted EPS). In FY 2025 it generated $329.8M of operating cash flow.
- Cash
- $25.5M
- Equity
- $1.58B
- Total assets
- $3.56B
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 FY 2026 | 2026-06-30 | $543.7M | $3.8M | 0.7% | 0.06 |
| Q1 FY 2026 | 2026-03-31 | $457.3M | -$5.5M | -1.2% | -0.09 |
| Q4 FY 2025derived | 2025-12-31 | $469.1M | -$2.5M | -0.5% | n/a |
| Q3 FY 2025 | 2025-09-30 | $485.4M | $10.0M | 2.1% | 0.16 |
| Q2 FY 2025 | 2025-06-30 | $465.3M | $5.2M | 1.1% | 0.08 |
| Q1 FY 2025 | 2025-03-31 | $417.1M | -$4.8M | -1.2% | -0.08 |
| Q4 FY 2024derived | 2024-12-31 | $427.5M | $4.9M | 1.1% | n/a |
| Q3 FY 2024 | 2024-09-30 | $411.6M | $5.8M | 1.4% | 0.10 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | $1.84B | $7.9M | $329.8M | $245.1M | n/a | n/a |
| FY 2024 | 2024-12-31 | $1.56B | $13.5M | $281.4M | $203.2M | n/a | n/a |
| FY 2023 | 2023-12-31 | $1.26B | $25.4M | $233.1M | $154.9M | n/a | n/a |
| FY 2022 | 2022-12-31 | $1.09B | $53.1M | $217.3M | $131.0M | n/a | n/a |
| FY 2021 | 2021-12-31 | $889.2M | $41.1M | $182.7M | $123.3M | n/a | n/a |
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 2026-06-30.
What this page is
Casella Waste Systems 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 Casella Waste Systems (CWST), SEC CIK 911177, listed on Nasdaq, classified by the SEC as refuse systems. 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 2026-09-21.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 2026-08-13.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 2026-10-09.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 2026-06-30.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 2026-08-06.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 2026-09-03.JSON and CSV
- Company record
- EDGAR filing index for CIK 911177Ticker, 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 CWST is sold short?
5,063,987 shares were held short at the 2026-09-30 settlement, 8.7 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 CWST's daily short volume?
On 2026-10-23, 167,135 of the 270,991 CWST shares reported to FINRA were sold short, 61.7% of the day's reported volume. Short volume is a flow for one day, not a position.
Does CWST have fails to deliver?
The SEC's latest file shows 119 CWST shares failed to deliver at settlement 2026-09-21. Fails are reported per settlement date and published twice a month with a lag.
Are CWST insiders buying or selling?
Insiders at CWST reported 5 open-market sells worth $1.7M in the last 90 days and no open-market buys. Latest filing: BURKE MICHAEL K (Director) on 2026-09-03.
Have CWST insiders filed to sell?
18 Form 144 notices on file for CWST worth $2.7M at the prices reported; 1 in the last 90 days worth $167K. Latest: CASELLA DOUGLAS R filed on 2026-08-13 to sell 1,838 shares ($167K) from 2026-08-13.
Who owns 5% or more of CWST?
3 holders report 5% or more of CWST in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 14.3% of the class (8,928,731 shares), filed 2026-01-08 for an event on 2025-12-31.
What did CWST report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) Casella Waste Systems reported revenue of $543.7M, up 16.9% from the same quarter a year earlier, and net income of $3.8M (0.06 diluted EPS). In FY 2025 it generated $329.8M of operating cash flow.
Which tracked 13F managers own CWST?
6 of the 30 tracked 13F managers held CWST shares at their latest filing, $95.2M in all. The largest: Ken Griffin's Citadel Advisors (456K shares, $44.2M), Steve Cohen's Point72 Asset Management (446K shares, $43.2M), Ken Fisher's Fisher Asset Management (35K shares, $3.4M), Cliff Asness's AQR Capital Management (27K shares, $2.6M), Two Sigma Investments (15K shares, $1.5M), Izzy Englander's Millennium Management (3K shares, $294K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.