PLUG PWR INC (PLUG)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
Institutions report 814,764,026 shares against 1,397,195,278 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $498.7M | 184,032,469 | 0.01% | 8q | +21.0%+$86.6M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $179.3M | 66,175,149 | 0.01% | 2q | +11.0%+$17.8M |
| VANGUARD CAPITAL MANAGEMENT LLC | $170.6M | 62,937,084 | 0.00% | 2q | +0.6%+$1.0M |
| STATE STREET CORP | $105.0M | 38,763,529 | 0.00% | 31q | +6.1%+$6.0M |
| GEODE CAPITAL MANAGEMENT, LLC | $99.1M | 36,557,253 | 0.01% | 31q | +5.3%+$5.0M |
| UBS Group AG | $89.8M | 33,127,276 | 0.01% | 31q | -20.4%-$22.9M |
| CITADEL ADVISORS LLC | $76.6M incl. $11.2M options CALL+PUT | 24,149,952 | 0.01% | 31q | +2712.4%+$73.9M |
| D. E. Shaw & Co., Inc. | $63.5M incl. $4.1M options CALL+PUT | 21,943,120 | 0.03% | 28q | -55.2%-$78.2M |
| TWO SIGMA INVESTMENTS, LP | $61.3M | 22,610,124 | 0.04% | 9q | -17.5%-$13.0M |
| DIMENSIONAL FUND ADVISORS LP | $52.8M | 19,502,331 | 0.01% | 24q | +7.5%+$3.7M |
| Handelsbanken Fonder AB | $51.5M | 19,014,270 | 0.15% | 3q | +446.9%+$42.1M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $46.9M incl. $37.6M options CALL+PUT | 3,426,973 | 0.00% | 31q | -15.3%-$8.5M |
| MILLENNIUM MANAGEMENT LLC | $37.1M | 13,703,609 | 0.01% | 30q | +34.0%+$9.4M |
| NORTHERN TRUST CORP | $34.6M | 12,754,552 | 0.00% | 31q | +9.1%+$2.9M |
| GOLDMAN SACHS GROUP INC | $33.6M incl. $69.6K options CALL | 12,387,564 | 0.00% | 31q | +35.1%+$8.7M |
| RENAISSANCE TECHNOLOGIES LLC | $31.9M | 11,779,800 | 0.04% | 3q | -57.5%-$43.2M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $31.5M | 11,681,867 | 0.04% | 9q | +31.4%+$7.5M |
| JANE STREET GROUP, LLC | $31.4M incl. $29.6M options CALL+PUT | 684,198 | 0.00% | 27q | +348.4%+$24.4M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $31.4M | 11,588,495 | 0.00% | 31q | +2.6%+$798.8K |
| BARCLAYS PLC | $29.6M | 10,940,208 | 0.01% | 31q | +25.5%+$6.0M |
| VANGUARD FIDUCIARY TRUST CO | $27.0M | 9,962,553 | 0.01% | 2q | +11.1%+$2.7M |
| Legal & General Group Plc | $26.3M | 9,717,433 | 0.01% | 31q | +5.9%+$1.5M |
| Nuveen, LLC | $23.6M | 8,697,094 | 0.01% | 6q | -12.2%-$3.3M |
| JUPITER ASSET MANAGEMENT LTD | $21.9M | 8,093,562 | 0.11% | 2q | +99.6%+$10.9M |
| MORGAN STANLEY | $20.9M | 7,697,993 | 0.00% | 35q | +34.6%+$5.4M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $18.6M | 6,859,733 | 0.00% | 31q | +395.2%+$14.8M |
| Invesco Ltd. | $17.0M | 6,284,359 | 0.00% | 31q | -23.4%-$5.2M |
| VAN ECK ASSOCIATES CORP | $15.0M | 5,548,968 | 0.01% | 25q | +5.6%+$795.5K |
| FIRST TRUST ADVISORS LP | $14.4M | 5,315,559 | 0.01% | 31q | +44.6%+$4.4M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | $13.9M | 5,127,225 | 0.01% | 26q | +2089.6%+$13.3M |
| JPMORGAN CHASE & CO | $13.4M | 5,121,654 | 0.00% | 31q | +123.9%+$7.4M |
| Bank of New York Mellon Corp | $11.2M | 4,117,519 | 0.00% | 31q | +2.7%+$290.4K |
| FMR LLC | $10.9M | 4,017,359 | 0.00% | 24q | -23.0%-$3.2M |
| Erste Asset Management GmbH | $10.9M | 4,203,376 | 0.08% | new | NEW |
| Mirae Asset Global Investments Co., Ltd. | $10.5M | 3,871,156 | 0.02% | 28q | +751.8%+$9.3M |
| VOYA INVESTMENT MANAGEMENT LLC | $10.2M | 3,781,760 | 0.01% | 31q | +1.0%+$96.8K |
| SIMPLEX TRADING, LLC | $9.9M CALL+PUT | options only | 0.01% | 31q | OPTIONS |
| Qube Research & Technologies Ltd | $9.5M | 3,520,398 | 0.01% | new | NEW |
| Amundi | $8.9M | 3,273,699 | 0.00% | 21q | +5.6%+$466.6K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $7.6M | 2,808,090 | 0.00% | 31q | -21.8%-$2.1M |
| ALPS ADVISORS INC | $7.4M | 2,719,160 | 0.03% | 31q | +27.6%+$1.6M |
| Swiss National Bank | $7.2M | 2,657,188 | 0.00% | 31q | +1.5%+$109.8K |
| IMC-Chicago, LLC | $7.1M CALL+PUT | options only | 0.00% | 19q | OPTIONS |
| COATUE MANAGEMENT LLC | $6.9M | 2,545,243 | 0.01% | 2q | HELD |
| Quadrature Capital Ltd | $6.7M | 2,468,016 | 0.06% | 11q | +501.4%+$5.6M |
| GROUP ONE TRADING LLC | $6.4M CALL+PUT | options only | 0.01% | 31q | OPTIONS |
| CANADA LIFE ASSURANCE Co | $6.2M | 2,304,473 | 0.01% | 31q | -7.9%-$536.8K |
| STIFEL FINANCIAL CORP | $6.1M | 2,265,097 | 0.01% | 27q | -30.9%-$2.7M |
| Vontobel Holding Ltd. | $5.9M incl. $86.7K options CALL | 2,139,442 | 0.02% | 23q | -8.6%-$556.2K |
| PINNACLE ASSOCIATES LTD | $5.6M | 2,055,379 | 0.06% | 27q | -2.4%-$135.0K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $5.1M | 1,895,796 | 0.01% | 31q | +8.2%+$387.5K |
| Point72 Asset Management, L.P. | $5.1M incl. $41.7K options CALL+PUT | 1,870,615 | 0.01% | 3q | -8.4%-$467.7K |
| RHUMBLINE ADVISERS | $5.0M | 1,854,727 | 0.00% | 31q | -1.4%-$70.8K |
| Headlands Technologies LLC | $4.8M | 1,763,652 | 0.51% | new | NEW |
| BANK OF AMERICA CORP /DE/ | $4.7M | 1,752,088 | 0.00% | 31q | -31.4%-$2.2M |
| Gotham Asset Management, LLC | $4.7M | 1,735,529 | 0.01% | 2q | -24.4%-$1.5M |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | $4.7M | 1,733,690 | 0.30% | new | NEW |
| BNP PARIBAS FINANCIAL MARKETS | $4.7M incl. $542 options CALL | 1,717,999 | 0.00% | 15q | -49.5%-$4.6M |
| WELLS FARGO & COMPANY/MN | $4.6M | 1,705,714 | 0.00% | 31q | +108.4%+$2.4M |
| DEUTSCHE BANK AG\ | $4.4M | 1,628,425 | 0.00% | 34q | -17.2%-$913.8K |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | $4.2M | 1,557,939 | 0.08% | 2q | HELD |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $4.1M | 1,527,981 | 0.00% | 31q | -2.1%-$87.6K |
| LPL Financial LLC | $4.0M | 1,489,240 | 0.00% | 31q | +12.2%+$439.0K |
| Baird Financial Group, Inc. | $3.8M | 1,395,068 | 0.01% | 3q | +28.7%+$842.3K |
| ALLIANCEBERNSTEIN L.P. | $3.6M | 1,575,191 | 0.00% | 31q | +18.2%+$548.1K |
| Jupiter Topco LLC | $3.5M | 1,293,221 | 0.00% | new | FIRST |
| Mitsubishi UFJ Asset Management Co., Ltd. | $3.3M | 1,223,498 | 0.00% | 22q | +50.7%+$1.1M |
| VANGUARD ASSET MANAGEMENT, Ltd | $3.3M | 1,204,706 | 0.00% | 2q | +5.6%+$172.6K |
| Voleon Capital Management LP | $3.2M | 1,197,989 | 0.06% | 4q | -42.2%-$2.4M |
| SG Americas Securities, LLC | $2.9M | 1,070,901 | 0.00% | 26q | +23.9%+$559.8K |
| MASTERS CAPITAL MANAGEMENT LLC | $2.7M | 1,000,000 | 0.07% | 5q | HELD |
| CITIGROUP INC | $2.5M | 908,162 | 0.00% | 31q | -48.3%-$2.3M |
| Walleye Trading LLC | $2.3M CALL+PUT | options only | 0.00% | 28q | OPTIONS |
| BANK OF MONTREAL /CAN/ | $2.3M | 846,093 | 0.00% | 31q | +50.9%+$773.2K |
| Squarepoint Ops LLC | $2.2M incl. $862.3K options CALL+PUT | 506,826 | 0.00% | new | NEW |
| MetLife Investment Management, LLC | $2.2M | 797,591 | 0.01% | 18q | +10.6%+$207.1K |
| STOREBRAND ASSET MANAGEMENT AS | $2.1M | 767,344 | 0.01% | 26q | +9.2%+$176.1K |
| Schonfeld Strategic Advisors LLC | $2.0M | 730,519 | 0.01% | 5q | -38.2%-$1.2M |
| Russell Investments Group, Ltd. | $1.9M | 710,470 | 0.00% | 22q | +553.9%+$1.6M |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $1.9M | 702,003 | 0.00% | 31q | +9.9%+$170.9K |
| Lighthouse Investment Partners, LLC | $1.8M | 675,000 | 0.05% | 4q | +150.0%+$1.1M |
| Marex Group Ltd | $1.8M | 674,338 | 0.01% | 15q | -51.5%-$1.9M |
| MERCER GLOBAL ADVISORS INC /ADV | $1.8M | 647,395 | 0.00% | 8q | -0.6%-$10.6K |
| HSBC HOLDINGS PLC | $1.7M | 639,391 | 0.00% | 30q | +46.7%+$551.4K |
| BOOTHBAY FUND MANAGEMENT, LLC | $1.7M | 637,888 | 0.02% | new | NEW |
| Vanguard Global Advisers, LLC | $1.6M | 603,240 | 0.00% | 2q | +5.8%+$90.0K |
| BANCO BILBAO VIZCAYA ARGENTARIA, S.A. | $1.6M | 596,830 | 0.01% | 22q | +18.6%+$250.0K |
| Creative Planning | $1.6M | 582,163 | 0.00% | 26q | +30.2%+$366.3K |
| CANADA PENSION PLAN INVESTMENT BOARD | $1.4M | 529,000 | 0.00% | 2q | +499.8%+$1.2M |
| Bouvel Investment Partners, LLC | $1.4M | 517,561 | 0.32% | 4q | +40.7%+$405.9K |
| KIECKHEFER GROUP LLC | $1.4M | 500,000 | 0.55% | 7q | HELD |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO | $1.4M | 499,584 | 0.01% | 10q | +11.5%+$139.1K |
| CSS LLC/IL | $1.3M CALL+PUT | options only | 0.05% | 12q | OPTIONS |
| KBC Group NV | $1.3M | 477,629 | 0.00% | 31q | HELD |
| NEW YORK STATE COMMON RETIREMENT FUND | $1.3M | 474,173 | 0.00% | 31q | +13.9%+$156.9K |
| ALGERT GLOBAL LLC | $1.3M | 469,000 | 0.02% | 3q | -54.2%-$1.5M |
| Cetera Investment Advisers | $1.2M incl. $1.1K options CALL | 455,116 | 0.00% | 10q | +67.5%+$497.4K |
| State of New Jersey Common Pension Fund D | $1.2M | 424,821 | 0.00% | new | NEW |
| Balyasny Asset Management L.P. | $1.1M incl. $1.1M options PUT | 13,286 | 0.00% | 14q | -46.1%-$970.8K |
| Police & Firemen's Retirement System of New Jersey | $1.1M | 403,772 | 0.01% | 7q | +13.6%+$130.6K |
Showing the largest 100 of 527 reported holders. The count of 526 above leaves out 1 position whose reported value failed our price check; it is listed here as filed.
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-09-23 | 2026-09-17 | Directors or officers departed or appointed | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-18 | Haycraft Benjamin | CSO & GM EMEA | Sold | 200,000 | $428.3K |
| 2026-06-08 | HELMER MAUREEN O | Director | Sold | 50,000 | $161.6K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 152 | $31.5M | 16,000,864 | 23 | 33 | 35 | 1.4% |
| Q2 2026 | 526 | $2.3B | 814,764,026 | 87 | 184 | 108 | 5.0% |
| Q1 2026 | 481 | $1.8B | 755,253,721 | 64 | 159 | 102 | 5.7% |
| Q4 2025 | 472 | $1.4B | 653,037,971 | 68 | 151 | 96 | 8.8% |
| Q3 2025 | 472 | $1.4B | 535,422,762 | 87 | 138 | 93 | 12.0% |
| Q2 2025 | 435 | $714.3M | 429,958,320 | 61 | 138 | 91 | 10.5% |
| Q1 2025 | 440 | $754.9M | 488,248,218 | 59 | 119 | 119 | 12.7% |
| Q4 2024 | 461 | $1.1B | 460,990,074 | 54 | 123 | 119 | 10.2% |
| Q3 2024 | 440 | $1.1B | 426,853,614 | 49 | 128 | 115 | 11.3% |
| Q2 2024 | 461 | $967.2M | 354,105,093 | 51 | 155 | 122 | 14.6% |
| Q1 2024 | 476 | $1.4B | 333,852,158 | 58 | 151 | 120 | 18.3% |
| Q4 2023 | 509 | $1.9B | 326,241,219 | 67 | 137 | 155 | 24.2% |
| Q3 2023 | 518 | $3.2B | 336,523,072 | 54 | 178 | 128 | 19.6% |
| Q2 2023 | 542 | $4.1B | 332,113,521 | 70 | 162 | 159 | 15.7% |
| Q1 2023 | 560 | $4.2B | 323,342,897 | 62 | 186 | 150 | 9.4% |
| Q4 2022 | 574 | $4.9B | 351,345,469 | 77 | 174 | 188 | 11.8% |
| Q3 2022 | 552 | $35.6B | 1,640,008,959 | 83 | 170 | 153 | 3.1% |
| Q2 2022 | 529 | $35.7B | 2,660,976,569 | 59 | 177 | 146 | 1.9% |
| Q1 2022 | 587 | $38.2B | 1,302,747,059 | 62 | 206 | 176 | 2.9% |
| Q4 2021 | 604 | $40.1B | 3,070,887,626 | 98 | 190 | 169 | 5.4% |
| Q3 2021 | 519 | $34.2B | 1,285,012,304 | 62 | 196 | 140 | 4.7% |
| Q2 2021 | 550 | $46.2B | 2,181,470,259 | 105 | 207 | 140 | 3.6% |
| Q1 2021 | 528 | $41.7B | 1,565,224,863 | 177 | 167 | 150 | 3.5% |
| Q4 2020 | 445 | $19.4B | 520,536,201 | 149 | 132 | 92 | 8.8% |
| Q3 2020 | 319 | $18.5B | 1,381,018,605 | 99 | 101 | 68 | 1.1% |
| Q2 2020 | 250 | $12.2B | 1,509,003,280 | 71 | 84 | 47 | 0.9% |
| Q1 2020 | 202 | $1.3B | 367,629,256 | 48 | 68 | 40 | 1.7% |
| Q4 2019 | 180 | $4.2B | 1,359,669,953 | 42 | 64 | 27 | 0.4% |
| Q3 2019 | 150 | $1.5B | 582,491,878 | 22 | 48 | 26 | 0.4% |
| Q2 2019 | 141 | $594.8M | 261,595,498 | 20 | 44 | 32 | 1.4% |
| Q1 2019 | 143 | $410.1M | 169,407,334 | 26 | 34 | 30 | 0.9% |
| Q4 2018 | 132 | $184.4M | 147,794,855 | 3 | 2 | 2 | 0.6% |
