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PLUG · Plug Power Inc · Holdings

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$1.85 -0.01 (-0.54%)
Market Cap
$2.77B
Shares
1.40B
Volume · Oct 6 44.65M Avg daily vol (3M) 53.01M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 522
Total Value: $2,299,293,906
Total Shares: 848,562,424
Showing 1–100 of 547 holdings by value · page 1 of 6

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 521 13F filers
Top Holder
21.7%
Sep 2023 → Jun 2026 · range 13.5% – 22.0%
of institutional value
Top 5
45.8%
Sep 2023 → Jun 2026 · range 43.1% – 57.0%
of institutional value
Top 10
60.7%
Sep 2023 → Jun 2026 · range 55.1% – 70.7%
of institutional value
HHI
709
Sep 2023 → Jun 2026 · range 489 – 924
Broadly held
Showing 100 of 547
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1093691 CUSIP 72919P202 13F (30d) 23 filings 17 filers Visit website Investor relations