Advanced Drainage Systems (WMS)
Advanced Drainage 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 NYSE, classified by the SEC as plastics foam products.
3.4M
Short interest
settlement 2026-10-15
4.6
Days to cover
+1.1 days vs prior
57.9%
Short share of volume
2026-11-02
680
Fails to deliver
settlement 2026-10-09
Thu 5 Nov
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in WMS is 3,354,432 shares, up 480,937 shares over the last month. Over the last 48 readings it ranged from 1,730,300 shares (15 November 2024) to 4,421,551 shares (31 July 2025). At the reported average volume of 733K shares a day that is 4.6 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 3,354,432 | +12.6% | 732,953 | 4.58 |
| 2026-09-30 | 2,979,163 | +3.7% | 850,158 | 3.50 |
| 2026-09-15 | 2,873,495 | -3.3% | 739,583 | 3.89 |
| 2026-08-31 | 2,972,046 | +22.9% | 526,288 | 5.65 |
| 2026-08-14 | 2,418,389 | +5.0% | 887,213 | 2.73 |
| 2026-07-31 | 2,303,453 | -21.0% | 594,050 | 3.88 |
| 2026-07-15 | 2,916,340 | -7.1% | 618,675 | 4.71 |
| 2026-06-30 | 3,138,866 | +1.6% | 1,101,882 | 2.85 |
| 2026-06-15 | 3,089,442 | -6.1% | 1,140,290 | 2.71 |
| 2026-05-29 | 3,288,660 | +12.3% | 1,030,138 | 3.19 |
| 2026-05-15 | 2,927,370 | +6.2% | 724,195 | 4.04 |
| 2026-04-30 | 2,757,635 | +3.5% | 1,023,180 | 2.70 |
| 2026-04-15 | 2,665,763 | -1.2% | 905,336 | 2.94 |
| 2026-03-31 | 2,697,367 | +4.4% | 883,772 | 3.05 |
| 2026-03-13 | 2,582,928 | -11.2% | 1,017,083 | 2.54 |
| 2026-02-27 | 2,909,561 | +12.8% | 595,482 | 4.89 |
| 2026-02-13 | 2,578,716 | -22.0% | 982,347 | 2.63 |
| 2026-01-30 | 3,307,921 | -2.1% | 602,015 | 5.49 |
| 2026-01-15 | 3,379,282 | +0.7% | 710,593 | 4.76 |
| 2025-12-31 | 3,355,088 | +0.9% | 442,499 | 7.58 |
| 2025-12-15 | 3,326,589 | -9.4% | 507,650 | 6.55 |
| 2025-11-28 | 3,672,810 | +9.8% | 688,242 | 5.34 |
| 2025-11-14 | 3,345,887 | -21.2% | 904,373 | 3.70 |
| 2025-10-31 | 4,246,173 | +5.8% | 602,034 | 7.05 |
| 2025-10-15 | 4,015,316 | -1.2% | 606,858 | 6.62 |
| 2025-09-30 | 4,065,075 | +6.9% | 751,469 | 5.41 |
| 2025-09-15 | 3,802,982 | -5.1% | 893,203 | 4.26 |
| 2025-08-29 | 4,008,226 | -3.0% | 885,808 | 4.52 |
| 2025-08-15 | 4,131,616 | -6.6% | 1,010,672 | 4.09 |
| 2025-07-31 | 4,421,551 | +19.3% | 617,967 | 7.15 |
| 2025-07-15 | 3,705,587 | +19.8% | 681,068 | 5.44 |
| 2025-06-30 | 3,093,711 | +4.8% | 957,270 | 3.23 |
| 2025-06-13 | 2,951,934 | -8.3% | 693,101 | 4.26 |
| 2025-05-30 | 3,221,045 | +22.9% | 718,862 | 4.48 |
| 2025-05-15 | 2,620,708 | -4.2% | 884,300 | 2.96 |
| 2025-04-30 | 2,734,545 | +14.7% | 439,832 | 6.22 |
| 2025-04-15 | 2,384,503 | +3.4% | 701,261 | 3.40 |
| 2025-03-31 | 2,305,509 | -6.4% | 622,258 | 3.71 |
| 2025-03-14 | 2,463,757 | -5.9% | 766,044 | 3.22 |
| 2025-02-28 | 2,618,567 | +19.7% | 558,891 | 4.69 |
| 2025-02-14 | 2,187,151 | +4.6% | 839,474 | 2.61 |
| 2025-01-31 | 2,091,459 | +8.3% | 549,662 | 3.80 |
| 2025-01-15 | 1,931,079 | +7.6% | 539,113 | 3.58 |
| 2024-12-31 | 1,794,697 | -9.4% | 688,338 | 2.61 |
| 2024-12-13 | 1,980,206 | -9.1% | 669,499 | 2.96 |
| 2024-11-29 | 2,179,253 | +25.9% | 596,419 | 3.65 |
| 2024-11-15 | 1,730,300 | -8.3% | 847,305 | 2.04 |
| 2024-10-31 | 1,885,825 | +17.1% | 308,613 | 6.11 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of WMS volume is 57.9%, up 9.5 points over the last five sessions. Over the last 30 readings it ranged from 36.9% (28 October 2026) to 82.3% (7 October 2026). The latest reading is in line with the 30-session average of 58.7%, on 237K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 137K | 237K | 57.9% | 16 |
| 2026-10-30 | 107K | 195K | 54.8% | 4 |
| 2026-10-29 | 146K | 265K | 54.9% | 26 |
| 2026-10-28 | 136K | 369K | 36.9% | 534 |
| 2026-10-27 | 102K | 188K | 54.2% | 2,903 |
| 2026-10-26 | 133K | 274K | 48.4% | 1,198 |
| 2026-10-23 | 136K | 307K | 44.2% | 0 |
| 2026-10-22 | 115K | 301K | 38.3% | 137 |
| 2026-10-21 | 101K | 215K | 46.7% | 429 |
| 2026-10-20 | 152K | 263K | 57.7% | 214 |
| 2026-10-19 | 132K | 190K | 69.5% | 259 |
| 2026-10-16 | 171K | 281K | 60.7% | 169 |
| 2026-10-15 | 175K | 394K | 44.3% | 349 |
| 2026-10-14 | 105K | 202K | 52.0% | 72 |
| 2026-10-13 | 129K | 323K | 39.9% | 119 |
| 2026-10-12 | 104K | 181K | 57.6% | 564 |
| 2026-10-09 | 162K | 346K | 46.8% | 406 |
| 2026-10-08 | 221K | 302K | 73.4% | 12 |
| 2026-10-07 | 252K | 306K | 82.3% | 1,803 |
| 2026-10-06 | 209K | 343K | 60.8% | 9,091 |
| 2026-10-05 | 213K | 321K | 66.5% | 26 |
| 2026-10-02 | 131K | 182K | 72.2% | 5 |
| 2026-10-01 | 145K | 198K | 72.9% | 608 |
| 2026-09-30 | 83K | 137K | 60.6% | 1 |
| 2026-09-29 | 184K | 283K | 65.0% | 2 |
| 2026-09-28 | 227K | 298K | 76.1% | 1 |
| 2026-09-25 | 245K | 343K | 71.4% | 88 |
| 2026-09-24 | 203K | 312K | 65.0% | 166 |
| 2026-09-23 | 170K | 270K | 62.9% | 125 |
| 2026-09-22 | 220K | 326K | 67.4% | 3 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 9 October 2026, the fails-to-deliver balance in WMS is 680 shares, up 614 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (31 August 2026) to 18,965 shares (22 June 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-09 | 680 | $126.21 | $86K |
| 2026-10-08 | 66 | $126.08 | $8K |
| 2026-10-06 | 4 | $129.43 | $518 |
| 2026-09-14 | 11,273 | $127.88 | $1.4M |
| 2026-09-11 | 13,006 | $127.16 | $1.7M |
| 2026-09-01 | 3 | $135.73 | $407 |
| 2026-08-31 | 2 | $136.99 | $274 |
| 2026-08-17 | 206 | $150.91 | $31K |
| 2026-08-06 | 12,308 | $149.59 | $1.8M |
| 2026-07-23 | 5,515 | $141.75 | $782K |
| 2026-07-14 | 874 | $147.62 | $129K |
| 2026-06-23 | 2,831 | $141.40 | $400K |
| 2026-06-22 | 18,965 | $147.12 | $2.8M |
| 2026-06-16 | 359 | $136.79 | $49K |
| 2026-06-15 | 55 | $134.95 | $7K |
| 2026-06-01 | 1,360 | $139.16 | $189K |
| 2026-05-29 | 97 | $140.05 | $14K |
| 2026-05-28 | 1,343 | $140.35 | $188K |
| 2026-05-26 | 1,177 | $133.00 | $157K |
| 2026-05-21 | 7,254 | $136.83 | $993K |
| 2026-05-19 | 734 | $135.28 | $99K |
| 2026-04-30 | 11,863 | $146.41 | $1.7M |
| 2026-04-24 | 9,872 | $153.02 | $1.5M |
| 2026-04-20 | 15 | $153.37 | $2K |
| 2026-04-17 | 1,183 | $144.32 | $171K |
| 2026-04-16 | 172 | $147.75 | $25K |
| 2026-04-14 | 340 | $152.05 | $52K |
| 2026-04-09 | 23 | $147.42 | $3K |
| 2026-04-02 | 430 | $137.00 | $59K |
| 2026-04-01 | 600 | $137.13 | $82K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for WMS in the last 90 days. The most recent filings are listed below. Latest filing: EVERSOLE ROBERT M (Director) on 2026-09-01.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-01 | EVERSOLE ROBERT M | Director | Gift | 2K | $0.00 | $0 | 51K |
| 2026-09-01 | Coyle Patrick M. Jr | See Remarks | Tax withholding | 26 | $130.75 | $3K | 10K |
| 2026-09-01 | EVERSOLE ROBERT M | Director | Gift | 2K | $0.00 | $0 | 2K |
| 2026-08-20 | BARBOUR D. SCOTT | See Remarks | Gift | 2K | $0.00 | $0 | 52K |
| 2026-07-16 | FRATTO TANYA D | Director | Grant | 1K | $0.00 | $0 | 31K |
| 2026-07-16 | GAST KELLY S. | Director | Grant | 1K | $0.00 | $0 | 9K |
| 2026-07-16 | COLEMAN MICHAEL B. | Director | Grant | 1K | $0.00 | $0 | 13K |
| 2026-07-16 | Seetharam Anil | Director | Grant | 2K | $0.00 | $0 | 16K |
| 2026-07-16 | CHAIBI ANESA | Director | Grant | 1K | $0.00 | $0 | 9K |
| 2026-07-16 | PEREZ DE LA MESA MANUEL J | Director | Grant | 2K | $0.00 | $0 | 25K |
| 2026-07-16 | EVERSOLE ROBERT M | Director | Grant | 2K | $0.00 | $0 | 5K |
| 2026-07-16 | FISCHER ALEXANDER R | Director | Grant | 1K | $0.00 | $0 | 18K |
| 2026-06-12 | BARBOUR D. SCOTT | See Remarks | Other transaction | 511 | $135.72 | $69K | 54K |
| 2026-06-12 | BARBOUR D. SCOTT | See Remarks | Other transaction | 511 | $135.72 | $69K | 0 |
| 2026-05-26 | TAYLOR CRAIG J. | Executive Vice President | Grant | 2K | $0.00 | $0 | 15K |
| 2026-05-26 | TALLEY KEVIN C | EVP and CAO | Grant | 1K | $0.00 | $0 | 63K |
| 2026-05-26 | Martz Bret | See Remarks | Grant | 1K | $0.00 | $0 | 3K |
| 2026-05-26 | Cottrill Scott A | EVP, CFO AND SECRETARY | Grant | 3K | $0.00 | $0 | 111K |
| 2026-05-26 | BARBOUR D. SCOTT | See Remarks | Grant | 9K | $0.00 | $0 | 77K |
| 2026-05-26 | Coyle Patrick M. Jr | See Remarks | Grant | 1K | $0.00 | $0 | 10K |
| 2026-05-26 | MAKOWSKI TIM A | See Remarks | Grant | 847 | $0.00 | $0 | 7K |
| 2026-05-26 | KING BRIAN W. | Executive Vice President | Grant | 950 | $0.00 | $0 | 22K |
| 2026-05-22 | BARBOUR D. SCOTT | See Remarks | Tax withholding | 2K | $133.00 | $252K | 68K |
| 2026-05-22 | TAYLOR CRAIG J. | Executive Vice President | Tax withholding | 152 | $133.00 | $20K | 13K |
| 2026-05-22 | TALLEY KEVIN C | EVP and CAO | Tax withholding | 324 | $133.00 | $43K | 62K |
| 2026-05-22 | MAKOWSKI TIM A | See Remarks | Tax withholding | 129 | $133.00 | $17K | 6K |
| 2026-05-22 | WAUN THOMAS J. SR. | EVP, International | Tax withholding | 218 | $133.00 | $29K | 18K |
| 2026-05-22 | Cottrill Scott A | EVP, CFO AND SECRETARY | Tax withholding | 604 | $133.00 | $80K | 108K |
| 2026-05-22 | KING BRIAN W. | Executive Vice President | Tax withholding | 230 | $133.00 | $31K | 21K |
| 2026-05-22 | Coyle Patrick M. Jr | See Remarks | Tax withholding | 112 | $133.00 | $15K | 9K |
| 2026-05-20 | WAUN THOMAS J. SR. | EVP, International | Tax withholding | 100 | $136.83 | $14K | 13K |
| 2026-05-20 | Cottrill Scott A | EVP, CFO AND SECRETARY | Grant | 10K | $0.00 | $0 | 109K |
| 2026-05-20 | Cottrill Scott A | EVP, CFO AND SECRETARY | Tax withholding | 339 | $136.83 | $46K | 99K |
| 2026-05-20 | MAKOWSKI TIM A | See Remarks | Grant | 4K | $0.00 | $0 | 6K |
| 2026-05-20 | MAKOWSKI TIM A | See Remarks | Tax withholding | 88 | $136.83 | $12K | 2K |
| 2026-05-20 | Coyle Patrick M. Jr | See Remarks | Grant | 3K | $0.00 | $0 | 9K |
| 2026-05-20 | Coyle Patrick M. Jr | See Remarks | Tax withholding | 64 | $136.83 | $9K | 6K |
| 2026-05-20 | KING BRIAN W. | Executive Vice President | Grant | 4K | $0.00 | $0 | 21K |
| 2026-05-20 | KING BRIAN W. | Executive Vice President | Tax withholding | 101 | $136.83 | $14K | 16K |
| 2026-05-20 | BARBOUR D. SCOTT | See Remarks | Grant | 29K | $0.00 | $0 | 70K |
| 2026-05-20 | BARBOUR D. SCOTT | See Remarks | Tax withholding | 1K | $136.83 | $155K | 41K |
| 2026-05-20 | TAYLOR CRAIG J. | Executive Vice President | Grant | 4K | $0.00 | $0 | 13K |
| 2026-05-20 | TAYLOR CRAIG J. | Executive Vice President | Tax withholding | 120 | $136.83 | $16K | 9K |
| 2026-05-20 | TALLEY KEVIN C | EVP and CAO | Grant | 6K | $0.00 | $0 | 63K |
| 2026-05-20 | TALLEY KEVIN C | EVP and CAO | Tax withholding | 141 | $136.83 | $19K | 57K |
| 2026-05-19 | WAUN THOMAS J. SR. | EVP, International | Grant | 5K | $0.00 | $0 | 18K |
| 2026-05-19 | WAUN THOMAS J. SR. | EVP, International | Tax withholding | 117 | $131.59 | $15K | 13K |
| 2026-05-19 | Cottrill Scott A | EVP, CFO AND SECRETARY | Tax withholding | 277 | $131.59 | $36K | 99K |
| 2026-05-19 | MAKOWSKI TIM A | See Remarks | Tax withholding | 104 | $131.59 | $14K | 2K |
| 2026-05-19 | Coyle Patrick M. Jr | See Remarks | Tax withholding | 91 | $131.59 | $12K | 6K |
| 2026-05-19 | KING BRIAN W. | Executive Vice President | Tax withholding | 116 | $131.59 | $15K | 17K |
| 2026-05-19 | BARBOUR D. SCOTT | See Remarks | Tax withholding | 934 | $131.59 | $123K | 42K |
| 2026-05-19 | TAYLOR CRAIG J. | Executive Vice President | Tax withholding | 167 | $131.59 | $22K | 10K |
| 2026-05-19 | TALLEY KEVIN C | EVP and CAO | Tax withholding | 141 | $131.59 | $19K | 57K |
| 2026-05-19 | Martz Bret | See Remarks | Tax withholding | 114 | $131.59 | $15K | 2K |
| 2026-03-17 | Martz Bret | See Remarks | Other transaction | 107 | $139.85 | $15K | 2K |
| 2026-03-13 | BARBOUR D. SCOTT | See Remarks | Gift | 7K | $0.00 | $0 | 110K |
| 2026-03-13 | BARBOUR D. SCOTT | See Remarks | Gift | 7K | $0.00 | $0 | 53K |
| 2026-03-04 | BARBOUR D. SCOTT | See Remarks | Gift | 511 | $0.00 | $0 | 511 |
| 2026-03-04 | BARBOUR D. SCOTT | See Remarks | Gift | 511 | $0.00 | $0 | 0 |
| 2025-12-05 | EVERSOLE ROBERT M | Director | Gift | 1K | $0.00 | $0 | 49K |
| 2025-12-03 | EVERSOLE ROBERT M | Director | Sell | 11K | $152.82 | $1.6M | 50K |
| 2025-12-02 | COLEMAN MICHAEL B. | Director | Gift | 68 | $0.00 | $0 | 11K |
| 2025-12-02 | COLEMAN MICHAEL B. | Director | Gift | 34 | $0.00 | $0 | 12K |
| 2025-12-02 | COLEMAN MICHAEL B. | Director | Gift | 102 | $0.00 | $0 | 12K |
| 2025-11-26 | WAUN THOMAS J. SR. | EVP, International | Sell | 2K | $155.00 | $233K | 13K |
| 2025-11-25 | BARBOUR D. SCOTT | See Remarks | Gift | 47K | $0.00 | $0 | 47K |
| 2025-11-25 | BARBOUR D. SCOTT | See Remarks | Gift | 15K | $0.00 | $0 | 84K |
| 2025-11-25 | BARBOUR D. SCOTT | See Remarks | Gift | 47K | $0.00 | $0 | 37K |
| 2025-11-25 | BARBOUR D. SCOTT | See Remarks | Gift | 15K | $0.00 | $0 | 12K |
| 2025-11-25 | BARBOUR D. SCOTT | See Remarks | Gift | 2K | $0.00 | $0 | 41K |
| 2025-11-12 | WAUN THOMAS J. SR. | EVP, International | Sell | 1K | $150.00 | $150K | 15K |
| 2025-11-12 | BARBOUR D. SCOTT | See Remarks | Sell | 2K | $150.66 | $306K | 43K |
| 2025-11-12 | BARBOUR D. SCOTT | See Remarks | Sell | 73K | $148.96 | $10.9M | 45K |
| 2025-11-12 | BARBOUR D. SCOTT | See Remarks | Sell | 5K | $148.01 | $672K | 118K |
| 2025-11-12 | BARBOUR D. SCOTT | See Remarks | Exercise or conversion | 80K | $25.75 | $2.1M | 123K |
| 2025-11-12 | MAKOWSKI TIM A | See Remarks | Sell | 101 | $149.19 | $15K | 2K |
| 2025-11-12 | MAKOWSKI TIM A | See Remarks | Sell | 5K | $149.21 | $716K | 3K |
| 2025-11-11 | WAUN THOMAS J. SR. | EVP, International | Sell | 1K | $148.30 | $189K | 797 |
| 2025-11-11 | WAUN THOMAS J. SR. | EVP, International | Sell | 1K | $148.30 | $189K | 797 |
| 2025-11-10 | EVERSOLE ROBERT M | Director | Gift | 4K | $0.00 | $0 | 61K |
| 2025-11-10 | EVERSOLE ROBERT M | Director | Gift | 4K | $0.00 | $0 | 2K |
| 2025-07-17 | Seetharam Anil | Director | Grant | 2K | $0.00 | $0 | 14K |
| 2025-07-17 | FISCHER ALEXANDER R | Director | Grant | 1K | $0.00 | $0 | 16K |
| 2025-07-17 | GAST KELLY S. | Director | Grant | 2K | $0.00 | $0 | 8K |
| 2025-07-17 | FRATTO TANYA D | Director | Grant | 1K | $0.00 | $0 | 29K |
| 2025-07-17 | Haney Mark | Director | Grant | 1K | $0.00 | $0 | 8K |
| 2025-07-17 | KISSAM LUTHER C IV | Director | Grant | 1K | $0.00 | $0 | 2K |
| 2025-07-17 | COLEMAN MICHAEL B. | Director | Grant | 1K | $0.00 | $0 | 12K |
| 2025-07-17 | CHAIBI ANESA | Director | Grant | 1K | $0.00 | $0 | 8K |
| 2025-07-17 | PEREZ DE LA MESA MANUEL J | Director | Grant | 2K | $0.00 | $0 | 23K |
| 2025-07-17 | EVERSOLE ROBERT M | Director | Grant | 2K | $0.00 | $0 | 6K |
| 2025-06-09 | HARVEY DARIN S. | EVP, Supply Chain & Logistics | Sell | 4K | $116.39 | $520K | 3K |
| 2025-05-27 | TAYLOR CRAIG J. | Executive Vice President | Tax withholding | 120 | $118.39 | $14K | 10K |
| 2025-05-27 | TAYLOR CRAIG J. | Executive Vice President | Tax withholding | 57 | $121.86 | $7K | 10K |
| 2025-05-22 | Cottrill Scott A | EVP, CFO AND SECRETARY | Tax withholding | 615 | $111.00 | $68K | 99K |
| 2025-05-22 | MAKOWSKI TIM A | See Remarks | Tax withholding | 133 | $111.00 | $15K | 7K |
| 2025-05-22 | KING BRIAN W. | Executive Vice President | Tax withholding | 167 | $111.00 | $19K | 17K |
| 2025-05-22 | TALLEY KEVIN C | EVP and CAO | Tax withholding | 221 | $111.00 | $25K | 57K |
| 2025-05-22 | BARBOUR D. SCOTT | See Remarks | Tax withholding | 2K | $111.00 | $214K | 43K |
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. JSON6 Form 144 notices on file for WMS worth $15.1M at the prices reported; 0 in the last 90 days worth $0. Latest: EVERSOLE ROBERT M filed on 2025-12-02 to sell 10,569 shares ($1.6M) from 2025-12-02.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2025-12-02 | EVERSOLE ROBERT MDirector | 11K | $1.6M | 0.014% | 2025-12-02 | Charles Schwab Corp |
| 2025-11-26 | THOMAS WAUNOfficer | 2K | $233K | 0.002% | 2025-11-26 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-12 | DONALD SCOTT BARBOUROfficer, Director | 80K | $11.9M | 0.103% | 2025-11-12 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-12 | THOMAS WAUNOfficer | 1K | $150K | 0.001% | 2025-11-12 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-12 | TIM MAKOWSKIOfficer | 5K | $731K | 0.006% | 2025-11-12 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-10 | DARIN HARVEYOfficer | 3K | $431K | 0.004% | 2025-11-10 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON2 holders report 5% or more of WMS in their latest filing, all on Schedule 13G (passive). The largest reported stake is Advanced Drainage Systems Inc. Employee Stock Ownership Plan Trust at 6.0% of the class (4,629,213 shares), filed 2026-02-13 for an event on 2025-12-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-04-29 | 13G | Vanguard Capital Managementinvestment adviser | 4.0M | 5.1% | 2026-03-31 |
| 2026-03-26 | 13G/Ano. 7 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-02-13 | 13G | Advanced Drainage Systems Inc. Employee Stock Ownership Plan Trustemployee benefit plan | 4.6M | 6.0% | 2025-12-31 |
13F holders
Tracked managers holding WMS at their latest 13F. JSON5 of the 30 tracked managers held WMS at their latest 13F, $85.9M in total at quarter-end prices. AQR Capital Management is the largest at $41.3M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 2 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| AQR Capital Management | 2026-06-30 | 267K | $41.3M | 0.01% | +42K |
| Millennium Management | 2026-06-30 | 133K | $20.9M | 0.01% | -91K |
| Citadel Advisors | 2026-06-30 | 120K | $18.9M | 0.00% | +32K |
| Bridgewater Associates | 2026-06-30 | 26K | $4.1M | 0.02% | -47K |
| Two Sigma Investments | 2026-06-30 | 4K | $628K | 0.00% | +187 |
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 Q1 FY 2027 (quarter ended 2026-06-30) Advanced Drainage Systems reported revenue of $1.00B, up 20.6% from the same quarter a year earlier, and net income of $168.5M (2.19 diluted EPS). In FY 2026 it generated $819.1M of operating cash flow and spent $92.0M on buybacks and $56.1M on dividends. As of 2026-06-30, cash was $162.3M against $1.60B of debt.
- Cash
- $162.3M
- Debt
- $1.60B
- Equity
- $1.79B
- Total assets
- $4.51B
- Shares outstanding
- 75,405,342
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q1 FY 2027 | 2026-06-30 | $1.00B | $168.5M | 16.8% | 2.19 |
| Q4 FY 2026derived | 2026-03-31 | $676.8M | $32.9M | 4.9% | n/a |
| Q3 FY 2026 | 2025-12-31 | $693.4M | $93.6M | 13.5% | 1.19 |
| Q2 FY 2026 | 2025-09-30 | $850.4M | $156.0M | 18.3% | 1.99 |
| Q1 FY 2026 | 2025-06-30 | $829.9M | $143.9M | 17.3% | 1.84 |
| Q4 FY 2025derived | 2025-03-31 | $615.8M | $77.2M | 12.5% | n/a |
| Q3 FY 2025 | 2024-12-31 | $690.5M | $81.2M | 11.8% | 1.04 |
| Q2 FY 2025 | 2024-09-30 | $782.6M | $130.4M | 16.7% | 1.67 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2026 | 2026-03-31 | $3.05B | $426.5M | $819.1M | $249.8M | $92.0M | $56.1M |
| FY 2025 | 2025-03-31 | $2.90B | $450.2M | $581.5M | $212.9M | $69.9M | $49.7M |
| FY 2024 | 2024-03-31 | $2.87B | $509.9M | $717.9M | $183.8M | $207.3M | $44.0M |
| FY 2023 | 2023-03-31 | $3.07B | $507.1M | $707.8M | $166.9M | $575.0M | $39.6M |
| FY 2022 | 2022-03-31 | $2.77B | $271.3M | $274.9M | $149.1M | $292.0M | $37.0M |
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 2026-06-30; shares outstanding as of 2026-07-30 from the cover page.
What this page is
Advanced Drainage 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 Advanced Drainage Systems (WMS), SEC CIK 1604028, listed on NYSE, classified by the SEC as plastics foam products. 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 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-09.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 2025-12-02.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 2026-04-29.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 2026-09-01.JSON and CSV
- Company record
- EDGAR filing index for CIK 1604028Ticker, 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 WMS is sold short?
What is WMS's daily short volume?
Does WMS have fails to deliver?
Are WMS insiders buying or selling?
Have WMS insiders filed to sell?
Who owns 5% or more of WMS?
What did WMS report last quarter?
Which tracked 13F managers own WMS?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.