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-Q1 13F filings (latest filed 2026-05-18). 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
The tracked-fund tape on PLUG is one-sided between 2026-Q1 and 2026-Q2: 7 added or opened and 107 trimmed or exited — on balance reducing.
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 conviction gap — its largest holder concentrates the name more heavily than the typical one.
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 2025-Q4 and 2026-Q1, across 470 tracked filers holding PLUG, 237 increased or opened the position and 170 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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.
Full exits 101
- VANGUARD CAPITAL MANAGEMENT LLC$141M
- VANGUARD PORTFOLIO MANAGEMENT LLC$135M
- NORGES BANK$97M
- UBS Group AG$94M
- GEODE CAPITAL MANAGEMENT, LLC$78M
- DIMENSIONAL FUND ADVISORS LP$41M
Largest adds
- BlackRock, Inc.$350M
- CITADEL ADVISORS LLC$64M
- STATE STREET CORP$22M
- PRICE T ROWE ASSOCIATES INC /MD/$15M
- MILLENNIUM MANAGEMENT LLC$14M
- COATUE MANAGEMENT LLC$1M
Largest trims
- D. E. Shaw & Co., Inc.$51M
- RENAISSANCE TECHNOLOGIES LLC$31M
- ExodusPoint Capital Management, LP$1M
- FMR LLC$877K
- Schonfeld Strategic Advisors LLC$690K
- TWO SIGMA INVESTMENTS, LP$641K
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 | 21.9% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 62,550,438 | $141M | 6.2% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 59,603,806 | $135M | 5.9% | 2026-Q1 |
| STATE STREET CORP added | 38,763,529 | $105M | 4.6% | 2026-Q2 |
| NORGES BANK added | 71,788,363 | $97M | 4.3% | 2026-Q1 |
| UBS Group AG added | 41,593,479 | $94M | 4.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 34,708,817 | $78M | 3.4% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 24,149,952 | $65M | 2.9% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 22,610,124 | $61M | 2.7% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 21,943,120 | $59M | 2.6% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 18,134,913 | $41M | 1.8% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 13,703,609 | $37M | 1.6% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 11,779,800 | $32M | 1.4% | 2026-Q2 |
| HRT FINANCIAL LP added | 11,866,225 | $27M | 1.2% | 2026-Q1 |
| NORTHERN TRUST CORP added | 11,687,839 | $26M | 1.2% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 11,293,747 | $26M | 1.1% | 2026-Q1 |
| Nuveen, LLC added | 9,904,153 | $22M | 1.0% | 2026-Q1 |
| Legal & General Group Plc trimmed | 9,177,330 | $21M | 0.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 9,167,207 | $21M | 0.9% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 8,965,362 | $20M | 0.9% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 8,891,401 | $20M | 0.9% | 2026-Q1 |
| BARCLAYS PLC added | 8,714,960 | $20M | 0.9% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 6,859,733 | $19M | 0.8% | 2026-Q2 |
| Invesco Ltd. trimmed | 6,284,359 | $17M | 0.7% | 2026-Q2 |
| MORGAN STANLEY trimmed | 5,719,421 | $13M | 0.6% | 2026-Q1 |
| VAN ECK ASSOCIATES CORP added | 5,255,439 | $12M | 0.5% | 2026-Q1 |
| FMR LLC trimmed | 4,017,359 | $11M | 0.5% | 2026-Q2 |
| JUPITER ASSET MANAGEMENT LTD new | 4,055,561 | $9M | 0.4% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 4,046,433 | $9M | 0.4% | 2026-Q1 |
| Bank of New York Mellon Corp added | 4,010,375 | $9M | 0.4% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC added | 3,746,025 | $8M | 0.4% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 3,677,307 | $8M | 0.4% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 3,592,066 | $8M | 0.4% | 2026-Q1 |
| Handelsbanken Fonder AB added | 3,476,950 | $8M | 0.3% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 3,402,553 | $8M | 0.3% | 2026-Q1 |
| STIFEL FINANCIAL CORP added | 3,279,434 | $7M | 0.3% | 2026-Q1 |
| Amundi added | 3,101,505 | $7M | 0.3% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 3,055,061 | $7M | 0.3% | 2026-Q1 |
| COATUE MANAGEMENT LLC | 2,545,243 | $7M | 0.3% | 2026-Q2 |
| Swiss National Bank added | 2,616,688 | $6M | 0.3% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 2,555,756 | $6M | 0.3% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co added | 2,503,371 | $6M | 0.2% | 2026-Q1 |
| Vontobel Holding Ltd. trimmed | 2,341,671 | $5M | 0.2% | 2026-Q1 |
| Gotham Asset Management, LLC added | 2,294,772 | $5M | 0.2% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 1,870,615 | $5M | 0.2% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 2,287,086 | $5M | 0.2% | 2026-Q1 |
| ALPS ADVISORS INC added | 2,130,585 | $5M | 0.2% | 2026-Q1 |
| PINNACLE ASSOCIATES LTD trimmed | 2,105,193 | $5M | 0.2% | 2026-Q1 |
| Voleon Capital Management LP added | 2,072,461 | $5M | 0.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 1,965,615 | $4M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 1,880,835 | $4M | 0.2% | 2026-Q1 |
| CITIGROUP INC trimmed | 1,757,454 | $4M | 0.2% | 2026-Q1 |
| Zurcher Kantonalbank (Zurich Cantonalbank) added | 1,752,789 | $4M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 1,560,305 | $4M | 0.2% | 2026-Q1 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC added | 1,557,939 | $4M | 0.2% | 2026-Q1 |
| Marex Group plc added | 1,390,968 | $3M | 0.1% | 2026-Q1 |
| LPL Financial LLC trimmed | 1,327,242 | $3M | 0.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 1,332,691 | $3M | 0.1% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 1,141,013 | $3M | 0.1% | 2026-Q1 |
| Baird Financial Group, Inc. trimmed | 1,084,247 | $2M | 0.1% | 2026-Q1 |
| ALGERT GLOBAL LLC added | 1,025,080 | $2M | 0.1% | 2026-Q1 |
| CAXTON ASSOCIATES LLP added | 1,016,724 | $2M | 0.1% | 2026-Q1 |
| MASTERS CAPITAL MANAGEMENT LLC | 1,000,000 | $2M | 0.1% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC trimmed | 730,519 | $2M | 0.1% | 2026-Q2 |
| SG Americas Securities, LLC trimmed | 864,328 | $2M | 0.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 818,459 | $2M | 0.1% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 811,940 | $2M | 0.1% | 2026-Q1 |
| MetLife Investment Management, LLC added | 721,176 | $2M | 0.1% | 2026-Q1 |
| STOREBRAND ASSET MANAGEMENT AS trimmed | 702,379 | $2M | 0.1% | 2026-Q1 |
| XTX Topco Ltd trimmed | 664,889 | $2M | 0.1% | 2026-Q1 |
| MERCER GLOBAL ADVISORS INC /ADV trimmed | 651,294 | $1M | 0.1% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 638,929 | $1M | 0.1% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC added | 621,428 | $1M | 0.1% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 570,036 | $1M | 0.1% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ added | 560,786 | $1M | 0.1% | 2026-Q1 |
| KIECKHEFER GROUP LLC | 500,000 | $1M | 0.0% | 2026-Q1 |
| BANCO BILBAO VIZCAYA ARGENTARIA, S.A. trimmed | 503,388 | $1M | 0.0% | 2026-Q1 |
| KBC Group NV | 477,629 | $1M | 0.0% | 2026-Q1 |
| Mirae Asset Global Investments Co., Ltd. trimmed | 454,462 | $1M | 0.0% | 2026-Q1 |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO added | 448,248 | $1M | 0.0% | 2026-Q1 |
| Creative Planning added | 447,001 | $1M | 0.0% | 2026-Q1 |
| HSBC HOLDINGS PLC trimmed | 435,975 | $985K | 0.0% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 416,273 | $941K | 0.0% | 2026-Q1 |
| Cerity Partners LLC trimmed | 414,635 | $937K | 0.0% | 2026-Q1 |
| Quadrature Capital Ltd trimmed | 410,400 | $928K | 0.0% | 2026-Q1 |
| 1492 Capital Management LLC trimmed | 405,276 | $916K | 0.0% | 2026-Q1 |
| ExodusPoint Capital Management, LP trimmed | 336,246 | $911K | 0.0% | 2026-Q2 |
| VANGUARD GROUP INC added | 129,599,295 | $255M | 11.2% | 2025-Q4 stale |
| HEIGHTS CAPITAL MANAGEMENT, INC new | 23,091,715 | $31M | 1.4% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP added | 11,018,584 | $22M | 1.0% | 2025-Q4 stale |
| Electron Capital Partners, LLC new | 4,576,398 | $11M | 0.5% | 2025-Q3 stale |
| Headlands Technologies LLC added | 1,739,125 | $4M | 0.2% | 2025-Q3 stale |
| MARSHALL WACE, LLP added | 1,129,352 | $2M | 0.1% | 2025-Q4 stale |
| CASTLEARK MANAGEMENT LLC new | 728,110 | $2M | 0.1% | 2025-Q3 stale |
| Virtu Financial LLC trimmed | 606,669 | $1M | 0.1% | 2025-Q3 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 700,000 | $1M | 0.1% | 2025-Q4 stale |
| Scientech Research LLC added | 831,235 | $1M | 0.1% | 2025-Q2 stale |
| Prescott Group Capital Management, L.L.C. new | 610,000 | $1M | 0.1% | 2025-Q4 stale |
| K2 PRINCIPAL FUND, L.P. added | 450,000 | $886K | 0.0% | 2025-Q4 stale |
| Compagnie Lombard Odier SCmA added | 440,000 | $867K | 0.0% | 2025-Q4 stale |
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.