Who owns Plug Power (PLUG)
Which tracked institutional funds hold PLUG, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See PLUG company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
83 tracked funds added or opened PLUG while 29 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
PLUG’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes PLUG more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in PLUG divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 482 tracked filers holding PLUG, 261 increased or opened the position and 181 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in PLUG between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 12
- Erste Asset Management GmbH$11M
- Qube Research & Technologies Ltd$10M
- Headlands Technologies LLC$5M
- LANDSCAPE CAPITAL MANAGEMENT, L.L.C.$5M
- Jupiter Topco LLC$4M
- BOOTHBAY FUND MANAGEMENT, LLC$2M
Full exits 10
- NORGES BANK$97M
- HRT FINANCIAL LP$27M
- Handelsbanken Fonder AB$8M
- Amundi$7M
- CANADA LIFE ASSURANCE Co$6M
- CAXTON ASSOCIATES LLP$2M
Largest adds
- BlackRock, Inc.$350M
- CITADEL ADVISORS LLC$64M
- VANGUARD PORTFOLIO MANAGEMENT LLC$45M
- VANGUARD CAPITAL MANAGEMENT LLC$29M
- STATE STREET CORP$22M
- GEODE CAPITAL MANAGEMENT, LLC$21M
Largest trims
- D. E. Shaw & Co., Inc.$51M
- RENAISSANCE TECHNOLOGIES LLC$31M
- AMERICAN CENTURY COMPANIES INC$7M
- UBS Group AG$4M
- BNP PARIBAS FINANCIAL MARKETS$3M
- CITIGROUP INC$2M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 184,032,469 | $499M | 20.0% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 66,175,149 | $179M | 7.2% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 62,937,084 | $171M | 6.8% | 2026-Q2 |
| STATE STREET CORP added | 38,763,529 | $105M | 4.2% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 36,557,253 | $99M | 4.0% | 2026-Q2 |
| UBS Group AG trimmed | 33,127,276 | $90M | 3.6% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 24,149,952 | $65M | 2.6% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 22,610,124 | $61M | 2.5% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 21,943,120 | $59M | 2.4% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 19,502,331 | $53M | 2.1% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 13,703,609 | $37M | 1.5% | 2026-Q2 |
| NORTHERN TRUST CORP added | 12,754,552 | $35M | 1.4% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 12,387,564 | $34M | 1.3% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 11,779,800 | $32M | 1.3% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 11,681,867 | $32M | 1.3% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 11,588,495 | $31M | 1.3% | 2026-Q2 |
| BARCLAYS PLC added | 10,940,208 | $30M | 1.2% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 9,962,553 | $27M | 1.1% | 2026-Q2 |
| Legal & General Group Plc added | 9,717,433 | $26M | 1.1% | 2026-Q2 |
| Nuveen, LLC trimmed | 8,697,094 | $24M | 0.9% | 2026-Q2 |
| JUPITER ASSET MANAGEMENT LTD added | 8,093,562 | $22M | 0.9% | 2026-Q2 |
| MORGAN STANLEY added | 7,697,993 | $21M | 0.8% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 6,859,733 | $19M | 0.7% | 2026-Q2 |
| Invesco Ltd. trimmed | 6,284,359 | $17M | 0.7% | 2026-Q2 |
| VAN ECK ASSOCIATES CORP added | 5,548,968 | $15M | 0.6% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 5,315,559 | $14M | 0.6% | 2026-Q2 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 5,127,225 | $14M | 0.6% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 5,121,654 | $13M | 0.5% | 2026-Q2 |
| Bank of New York Mellon Corp added | 4,117,519 | $11M | 0.4% | 2026-Q2 |
| FMR LLC trimmed | 4,017,359 | $11M | 0.4% | 2026-Q2 |
| Erste Asset Management GmbH new | 4,203,376 | $11M | 0.4% | 2026-Q2 |
| Mirae Asset Global Investments Co., Ltd. added | 3,871,156 | $10M | 0.4% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC added | 3,781,760 | $10M | 0.4% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 3,520,398 | $10M | 0.4% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 3,426,973 | $9M | 0.4% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 2,808,090 | $8M | 0.3% | 2026-Q2 |
| ALPS ADVISORS INC added | 2,719,160 | $7M | 0.3% | 2026-Q2 |
| Swiss National Bank added | 2,657,188 | $7M | 0.3% | 2026-Q2 |
| COATUE MANAGEMENT LLC | 2,545,243 | $7M | 0.3% | 2026-Q2 |
| Quadrature Capital Ltd added | 2,468,016 | $7M | 0.3% | 2026-Q2 |
| STIFEL FINANCIAL CORP trimmed | 2,265,097 | $6M | 0.2% | 2026-Q2 |
| Vontobel Holding Ltd. trimmed | 2,139,442 | $6M | 0.2% | 2026-Q2 |
| PINNACLE ASSOCIATES LTD trimmed | 2,055,379 | $6M | 0.2% | 2026-Q2 |
| Zurcher Kantonalbank (Zurich Cantonalbank) added | 1,895,796 | $5M | 0.2% | 2026-Q2 |
| Point72 Asset Management, L.P. trimmed | 1,870,615 | $5M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 1,854,727 | $5M | 0.2% | 2026-Q2 |
| Headlands Technologies LLC added | 1,763,652 | $5M | 0.2% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 1,752,088 | $5M | 0.2% | 2026-Q2 |
| Gotham Asset Management, LLC trimmed | 1,735,529 | $5M | 0.2% | 2026-Q2 |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. new | 1,733,690 | $5M | 0.2% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 1,717,999 | $5M | 0.2% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 1,705,714 | $5M | 0.2% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 1,628,425 | $4M | 0.2% | 2026-Q2 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | 1,557,939 | $4M | 0.2% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 1,527,981 | $4M | 0.2% | 2026-Q2 |
| LPL Financial LLC added | 1,489,240 | $4M | 0.2% | 2026-Q2 |
| Baird Financial Group, Inc. added | 1,395,068 | $4M | 0.2% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 1,575,191 | $4M | 0.1% | 2026-Q2 |
| Jupiter Topco LLC new | 1,293,221 | $4M | 0.1% | 2026-Q2 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 1,223,498 | $3M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 1,204,706 | $3M | 0.1% | 2026-Q2 |
| Voleon Capital Management LP trimmed | 1,197,989 | $3M | 0.1% | 2026-Q2 |
| MASTERS CAPITAL MANAGEMENT LLC | 1,000,000 | $3M | 0.1% | 2026-Q2 |
| CITIGROUP INC trimmed | 908,162 | $2M | 0.1% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ added | 846,093 | $2M | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 797,591 | $2M | 0.1% | 2026-Q2 |
| STOREBRAND ASSET MANAGEMENT AS added | 767,344 | $2M | 0.1% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC trimmed | 730,519 | $2M | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 710,470 | $2M | 0.1% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 702,003 | $2M | 0.1% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 684,198 | $2M | 0.1% | 2026-Q2 |
| Lighthouse Investment Partners, LLC added | 675,000 | $2M | 0.1% | 2026-Q2 |
| Marex Group Ltd trimmed | 674,338 | $2M | 0.1% | 2026-Q2 |
| MERCER GLOBAL ADVISORS INC /ADV trimmed | 647,395 | $2M | 0.1% | 2026-Q2 |
| HSBC HOLDINGS PLC added | 639,391 | $2M | 0.1% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 637,888 | $2M | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC added | 603,240 | $2M | 0.1% | 2026-Q2 |
| BANCO BILBAO VIZCAYA ARGENTARIA, S.A. added | 596,830 | $2M | 0.1% | 2026-Q2 |
| Creative Planning added | 582,163 | $2M | 0.1% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 529,000 | $1M | 0.1% | 2026-Q2 |
| Bouvel Investment Partners, LLC added | 517,561 | $1M | 0.1% | 2026-Q2 |
| Squarepoint Ops LLC added | 506,826 | $1M | 0.1% | 2026-Q2 |
| KIECKHEFER GROUP LLC | 500,000 | $1M | 0.1% | 2026-Q2 |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO added | 499,584 | $1M | 0.1% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 474,173 | $1M | 0.1% | 2026-Q2 |
| VANGUARD GROUP INC added | 129,599,295 | $255M | 10.3% | 2025-Q4 stale (2 quarters behind) |
| NORGES BANK added | 71,788,363 | $97M | 3.9% | 2026-Q1 stale (1 quarter behind) |
| TWO SIGMA ADVISERS, LP added | 11,018,584 | $22M | 0.9% | 2025-Q4 stale (2 quarters behind) |
| Electron Capital Partners, LLC new | 4,576,398 | $11M | 0.4% | 2025-Q3 stale (3 quarters behind) |
| Handelsbanken Fonder AB added | 3,476,950 | $8M | 0.3% | 2026-Q1 stale (1 quarter behind) |
| Amundi added | 3,101,505 | $7M | 0.3% | 2026-Q1 stale (1 quarter behind) |
| CANADA LIFE ASSURANCE Co added | 2,503,371 | $6M | 0.2% | 2026-Q1 stale (1 quarter behind) |
| CAXTON ASSOCIATES LLP added | 1,016,724 | $2M | 0.1% | 2026-Q1 stale (1 quarter behind) |
| MARSHALL WACE, LLP added | 1,129,352 | $2M | 0.1% | 2025-Q4 stale (2 quarters behind) |
| SG Americas Securities, LLC trimmed | 864,328 | $2M | 0.1% | 2026-Q1 stale (1 quarter behind) |
| CASTLEARK MANAGEMENT LLC new | 728,110 | $2M | 0.1% | 2025-Q3 stale (3 quarters behind) |
| XTX Topco Ltd trimmed | 664,889 | $2M | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Virtu Financial LLC trimmed | 606,669 | $1M | 0.1% | 2025-Q3 stale (3 quarters behind) |
| JANUS HENDERSON GROUP PLC added | 621,428 | $1M | 0.1% | 2026-Q1 stale (1 quarter behind) |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 700,000 | $1M | 0.1% | 2025-Q4 stale (2 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.