Plug Power Inc.
US ˙ NasdaqCM ˙ US72919P2020

SecurityPLUG / Plug Power Inc.
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership7,173 shares
Latest Disclosed Value $ 16,212
Rockefeller Capital Management L.P. reports 22.62% decrease in ownership of PLUG / Plug Power Inc.

On May 14, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 7,173 shares of Plug Power Inc. (US:PLUG) valued at $16,211 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 16, 2026 disclosing 9,270 shares of Plug Power Inc.. This represents a change in shares of -22.62% during the quarter. The current value of the position is $26,468 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F PLUG PWR COM NEW 72919P202 7,173 -2,097 -22.62 16 -11.11 0.0000
2026-03-16 2025-12-31 13F/A-1 PLUG POWER COM NEW 72919P202 9,270 201 2.22 18 -14.29 0.0000
2026-02-14 2025-12-31 13F PLUG POWER COM NEW 72919P202 9,270 201 18 0.0000
2025-11-14 2025-09-30 13F PLUG POWER COM NEW 72919P202 9,069 9,069 21 0.0000
2024-08-12 2024-06-30 13F PLUG POWER COM NEW 72919P202 0 -206,832 -100.00 0 -100.00
2024-05-14 2024-03-31 13F PLUG POWER COM NEW 72919P202 206,832 -12,315 -5.62 712 -27.89 0.0021
2024-02-14 2023-12-31 13F PLUG POWER COM NEW 72919P202 219,147 -60,503 -21.64 986 -53.60 0.0033
2023-11-14 2023-09-30 13F PLUG POWER COM NEW 72919P202 279,650 27,627 10.96 2,125 -18.83 0.0082
2023-08-14 2023-06-30 13F PLUG POWER COM NEW 72919P202 252,023 -412 -0.16 2,619 130,800.00 0.0101
2023-05-16 2023-03-31 13F PLUG POWER COM NEW 72919P202 252,435 22,291 9.69 3 -99.93 0.0127
2023-03-06 2022-12-31 13F PLUG POWER COM NEW 72919P202 230,144 141,111 158.49 2,846 52.19 0.0143
2022-11-02 2022-09-30 13F PLUG POWER COM NEW 72919P202 89,033 3,382 3.95 1,870 31.78 0.0097
2022-08-12 2022-06-30 13F PLUG POWER COM NEW 72919P202 85,651 -400 -0.46 1,419 -42.34 0.0075
2022-05-13 2022-03-31 13F PLUG POWER COM NEW 72919P202 86,051 14,647 20.51 2,461 22.13 0.0119
2022-02-14 2021-12-31 13F PLUG POWER COM NEW 72919P202 71,404 23,101 47.83 2,015 63.42 0.0094
2021-11-12 2021-09-30 13F PLUG POWER COM NEW 72919P202 48,303 18,871 64.12 1,233 22.56 0.0065
2021-08-10 2021-06-30 13F PLUG POWER COM NEW 72919P202 29,432 -4,850 -14.15 1,006 -18.08 0.0057
2021-05-11 2021-03-31 13F PLUG POWER COM NEW 72919P202 34,282 5,107 17.50 1,228 24.17 0.0083
2021-02-12 2020-12-31 13F PLUG POWER COM NEW 72919P202 29,175 22,675 348.85 989 1,036.78 0.0075
2020-11-13 2020-09-30 13F PLUG POWER COM NEW 72919P202 6,500 1,500 30.00 87 112.20 0.0008
2020-08-12 2020-06-30 13F PLUG POWER COM NEW 72919P202 5,000 0 0.00 41 127.78 0.0004
2020-05-12 2020-03-31 13F PLUG POWER COM NEW 72919P202 5,000 5,000 18 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.