Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in PLUG held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 152.1M | $343.7M | +29.8% | 13.262% | 0.01% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 62.6M | $141.4M | — | 5.454% | 0.00% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 59.6M | $134.7M | — | 5.197% | 0.01% |
| 4 | UBS Group AG | 45.3M | $102.4M | +55.3% | 3.949% | 0.02% |
| 5 | STATE STREET CORP | 36.5M | $82.6M | +13.3% | 3.187% | 0.00% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 34.7M | $78.5M | +11.0% | 3.026% | 0.00% |
| 7 | RENAISSANCE TECHNOLOGIES LLC | 27.7M | $62.7M | +97.4% | 2.419% | 0.10% |
| 8 | TWO SIGMA INVESTMENTS, LP | 27.4M | $61.9M | -3.4% | 2.389% | 0.05% |
| 9 | DIMENSIONAL FUND ADVISORS LP | 18.1M | $41.0M | +241.3% | 1.581% | 0.01% |
| 10 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 17.6M | $39.9M | -17.9% | 1.538% | 0.00% |
| 11 | NORTHERN TRUST CORP | 11.7M | $26.4M | +17.2% | 1.019% | 0.00% |
| 12 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 11.3M | $25.5M | +2.8% | 0.985% | 0.00% |
| 13 | MILLENNIUM MANAGEMENT LLC | 10.2M | $23.1M | +46.8% | 0.892% | 0.02% |
| 14 | Nuveen, LLC | 9.9M | $22.4M | +7.0% | 0.864% | 0.01% |
| 15 | GOLDMAN SACHS GROUP INC | 9.2M | $20.8M | -10.1% | 0.804% | 0.00% |
| 16 | Legal & General Group Plc | 9.2M | $20.7M | -0.6% | 0.800% | 0.00% |
| 17 | VANGUARD FIDUCIARY TRUST CO | 9.0M | $20.3M | — | 0.782% | 0.01% |
| 18 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 8.9M | $20.0M | +1.4% | 0.775% | 0.03% |
| 19 | BARCLAYS PLC | 8.7M | $19.7M | +343.6% | 0.760% | 0.01% |
| 20 | Invesco Ltd. | 8.2M | $18.5M | -20.3% | 0.716% | 0.00% |
| 21 | MORGAN STANLEY | 5.7M | $12.9M | -61.0% | 0.499% | 0.00% |
| 22 | FMR LLC | 5.2M | $11.8M | -34.6% | 0.455% | 0.00% |
| 23 | CITADEL ADVISORS LLC | 5.2M | $11.8M | -41.3% | 0.453% | 0.01% |
| 24 | JUPITER ASSET MANAGEMENT LTD | 4.1M | $9.2M | — | 0.354% | 0.05% |
| 25 | Bank of New York Mellon Corp | 4.0M | $9.1M | +10.7% | 0.350% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in PLUG — a direct measure of their conviction.
Filings activity in PLUG during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 457 | +3.4% | 49.79% | 0.18 pp | $1.58B | 0.4% |
| Q4 2025 | 442 | +3.8% | 49.97% | +10.84 pp | $1.58B | +28% |
| Q3 2025 | 426 | +2.7% | 39.13% | +19.37 pp | $1.24B | +98% |
| Q2 2025 | 415 | +1.0% | 19.76% | +1.94 pp | $625M | +11% |
| Q1 2025 | 411 | 5.7% | 17.82% | 12.14 pp | $564M | 41% |
| Q4 2024 | 436 | +3.8% | 29.96% | 1.38 pp | $948M | 4.4% |
| Q3 2024 | 420 | 4.8% | 31.34% | 5.73 pp | $992M | 15% |
| Q2 2024 | 441 | — | 37.07% | — | $1.17B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying PLUG stock.
Based on Q1 2026 13F filings, institutional ownership of Plug Power Inc. stands at 49.8%, held across 457 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of PLUG, with approximately 152,093,275 shares worth $0.34B as of Q1 2026.
Yes — 5 widely-followed marquee investors appear among the top 25 institutional holders of PLUG, including RENAISSANCE TECHNOLOGIES LLC, TWO SIGMA INVESTMENTS, LP, SUSQUEHANNA INTERNATIONAL GROUP, LLP, MILLENNIUM MANAGEMENT LLC, CITADEL ADVISORS LLC.
Our composite Smart Money Score for PLUG is 68 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
83 institutions opened new positions in PLUG during Q1 2026, while 68 fully exited. 309 added to existing positions and 56 trimmed.
PLUG institutional ownership fell by 0.18 percentage points quarter-over-quarter, with a net change of +15 holders.
The top 10 institutions account for 69.1% of all reported 13F value in PLUG, and the top 25 account for 86.4%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Plug Power Inc. (PLUG) Institutional Ownership