Ranked by reported Q2 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. | 184.0M | $498.7M | +21.0% | 13.192% | 0.01% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 66.2M | $179.3M | +11.0% | 4.744% | 0.01% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 62.9M | $170.6M | +0.6% | 4.511% | 0.00% |
| 4 | STATE STREET CORP | 38.8M | $105.0M | +6.1% | 2.779% | 0.00% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 36.6M | $99.1M | +5.3% | 2.620% | 0.01% |
| 6 | UBS Group AG | 33.1M | $89.8M | -26.9% | 2.375% | 0.01% |
| 7 | CITADEL ADVISORS LLC | 28.3M | $76.6M | +443.8% | 2.027% | 0.00% |
| 8 | D. E. Shaw & Co., Inc. | 23.4M | $63.5M | -52.8% | 1.681% | 0.03% |
| 9 | TWO SIGMA INVESTMENTS, LP | 22.6M | $61.3M | -17.5% | 1.621% | 0.04% |
| 10 | DIMENSIONAL FUND ADVISORS LP | 19.5M | $52.8M | +7.5% | 1.398% | 0.01% |
| 11 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 17.3M | $46.9M | -1.8% | 1.241% | 0.00% |
| 12 | MILLENNIUM MANAGEMENT LLC | 13.7M | $37.1M | +34.0% | 0.982% | 0.01% |
| 13 | NORTHERN TRUST CORP | 12.8M | $34.6M | +9.1% | 0.914% | 0.00% |
| 14 | GOLDMAN SACHS GROUP INC | 12.4M | $33.6M | +34.7% | 0.890% | 0.00% |
| 15 | RENAISSANCE TECHNOLOGIES LLC | 11.8M | $31.9M | -57.5% | 0.844% | 0.04% |
| 16 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 11.7M | $31.5M | +31.4% | 0.837% | 0.04% |
| 17 | JANE STREET GROUP, LLC | 11.6M | $31.4M | +29.7% | 0.831% | 0.00% |
| 18 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 11.6M | $31.4M | +2.6% | 0.831% | 0.00% |
| 19 | BARCLAYS PLC | 10.9M | $29.6M | +25.5% | 0.784% | 0.01% |
| 20 | VANGUARD FIDUCIARY TRUST CO | 10.0M | $27.0M | +11.1% | 0.714% | 0.01% |
| 21 | Legal & General Group Plc | 9.7M | $26.3M | +5.9% | 0.697% | 0.01% |
| 22 | Nuveen, LLC | 8.7M | $23.6M | -12.2% | 0.623% | 0.01% |
| 23 | JUPITER ASSET MANAGEMENT LTD | 8.1M | $21.9M | +99.6% | 0.580% | 0.11% |
| 24 | MORGAN STANLEY | 7.7M | $20.9M | +34.6% | 0.552% | 0.00% |
| 25 | Invesco Ltd. | 6.3M | $17.0M | -23.4% | 0.451% | 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 Q2 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 |
|---|---|---|---|---|---|---|
| Q2 2026 | 515 | +8.6% | 60.79% | +4.18 pp | $2.21B | +28% |
| Q1 2026 | 474 | +4.2% | 56.61% | +6.79 pp | $1.73B | +5.2% |
| Q4 2025 | 455 | +2.7% | 49.82% | +7.94 pp | $1.64B | +23% |
| Q3 2025 | 443 | +6.7% | 41.88% | +10.13 pp | $1.33B | +113% |
| Q2 2025 | 415 | +1.0% | 31.75% | +0.93 pp | $625M | +11% |
| Q1 2025 | 411 | 5.7% | 30.82% | 1.89 pp | $564M | 41% |
| Q4 2024 | 436 | +3.8% | 32.71% | +6.42 pp | $948M | 4.4% |
| Q3 2024 | 420 | — | 26.29% | — | $992M | — |
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 Q2 2026 13F filings, institutional ownership of Plug Power Inc. stands at 60.8%, held across 515 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of PLUG, with approximately 184,032,469 shares worth $0.50B as of Q2 2026.
Yes — 6 widely-followed marquee investors appear among the top 25 institutional holders of PLUG, including CITADEL ADVISORS LLC, TWO SIGMA INVESTMENTS, LP, SUSQUEHANNA INTERNATIONAL GROUP, LLP, MILLENNIUM MANAGEMENT LLC, RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for PLUG is 86 out of 100 (Strong Smart Money). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
79 institutions opened new positions in PLUG during Q2 2026, while 42 fully exited. 348 added to existing positions and 62 trimmed.
PLUG institutional ownership rose by 4.18 percentage points quarter-over-quarter, with a net change of +41 holders.
The top 10 institutions account for 63.1% of all reported 13F value in PLUG, and the top 25 account for 83.2%.
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