Plug Power Inc.
AT ˙ WBAG ˙ US72919P2020
3,16 € ↓ -0,14 (-4,34%)
2026-06-04
DEL PRIS
SecurityAT:PLUG / Plug Power Inc.
InstitutionBlackRock, Inc.
Latest Disclosed Ownership146,967,765 shares
Ownership 10.50%
BlackRock, Inc. ownership in PLUG / Plug Power Inc.

2026-04-07 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 146,967,765 shares of Plug Power Inc. (AT:PLUG). This represents 10.5 percent ownership of the company. In their previous filing dated 2025-10-17 , BlackRock, Inc. had reported owning 98,183,530 shares, indicating an increase of 49.69 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2026-04-07 2026-04-07 13G/A 98,183,530 146,967,765 49.69 10.50 26.51
2025-10-17 2025-10-17 13G/A 83,088,389 98,183,530 18.17 8.30 15.28
2025-07-17 2025-07-17 13G/A 51,301,020 83,088,389 61.96 7.20 -15.29
2024-01-25 2024-01-25 13G/A 50,846,270 51,301,020 0.89 8.50 -2.30
2023-01-25 2023-01-25 13G/A 58,138,014 50,846,270 -12.54 8.70 -13.86
2022-05-09 2022-05-09 13G 48,032,562 58,138,014 21.04 10.10 21.69
2022-02-03 2022-02-03 13G/A 47,161,335 48,032,562 1.85 8.30 -22.43
2021-01-27 2021-01-27 13G/A 47,161,335 47,161,335 0.00 10.70 0.00
2021-01-27 2021-01-27 13G/A 33,525,137 47,161,335 40.67 10.70 3.88
2020-07-10 2020-07-10 13G/A 21,540,398 33,525,137 55.64 10.30 43.06
2020-02-05 2020-02-05 13G/A 16,527,822 21,540,398 30.33 7.20 1.41
2019-02-06 2019-02-06 13G/A 14,357,035 16,527,822 15.12 7.10 12.70
2018-01-29 2018-01-29 13G/A 11,820,396 14,357,035 21.46 6.30 1.61
2017-01-25 2017-01-25 13G/A 9,675,953 11,820,396 22.16 6.20 14.81
2016-01-28 2016-01-28 13G 9,675,953 5.40

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-13 2026-03-31 13F PLUG PWR COM NEW 72919P202 152,093,275 34,909,164 29.79 343,731 48.90 0.0060
2026-02-12 2025-12-31 13F PLUG POWER COM NEW 72919P202 117,184,111 17,594,907 17.67 230,853 -0.51 0.0039
2025-11-12 2025-09-30 13F PLUG POWER COM NEW 72919P202 99,589,204 16,071,200 19.24 232,043 86.47 0.0041
2025-08-12 2025-06-30 13F PLUG POWER COM NEW 72919P202 83,518,004 3,593,232 4.50 124,442 15.33 0.0024
2025-05-02 2025-03-31 13F PLUG POWER COM NEW 72919P202 79,924,772 625,227 0.79 107,898 -36.12 0.0023
2025-02-07 2024-12-31 13F PLUG POWER COM NEW 72919P202 79,299,545 3,566,933 4.71 168,908 -1.31 0.0034
2024-11-13 2024-09-30 13F PLUG POWER COM NEW 72919P202 75,732,612 13,379,260 21.46 171,156 17.81 0.0036
2024-08-13 2024-06-30 13F PLUG POWER COM NEW 72919P202 62,353,352 14,149,067 29.35 145,283 -12.39 0.0033
2024-05-10 2024-03-31 13F PLUG POWER COM NEW 72919P202 48,204,285 -3,098,476 -6.04 165,823 -28.17 0.0039
2024-02-13 2023-12-31 13F PLUG POWER COM NEW 72919P202 51,302,761 5,588,764 12.23 230,862 -33.55 0.0059
2023-11-13 2023-09-30 13F PLUG POWER COM NEW 72919P202 45,713,997 -3,165,376 -6.48 347,426 -31.59 0.0100
2023-08-11 2023-06-30 13F PLUG POWER COM NEW 72919P202 48,879,373 -3,502,485 -6.69 507,857 -17.28 0.0140
2023-05-12 2023-03-31 13F PLUG POWER COM NEW 72919P202 52,381,858 1,534,756 3.02 613,915 -2.39 0.0181
2023-02-13 2022-12-31 13F PLUG POWER COM NEW 72919P202 50,847,102 -4,737,166 -8.52 628,979 -46.14 0.0197
2022-11-14 2022-09-30 13F PLUG POWER COM NEW 72919P202 55,584,268 -1,593,640 -2.79 1,167,823 23.26 0.0397
2022-08-12 2022-06-30 13F PLUG POWER COM NEW 72919P202 57,177,908 6,681,385 13.23 947,438 -34.42 0.0304
2022-05-12 2022-03-31 13F PLUG POWER COM NEW 72919P202 50,496,523 2,463,961 5.13 1,444,708 6.54 0.0389
2022-02-10 2021-12-31 13F PLUG POWER COM NEW 72919P202 48,032,562 2,483,643 5.45 1,355,961 16.56 0.0345
2021-11-09 2021-09-30 13F PLUG POWER COM NEW 72919P202 45,548,919 741,751 1.66 1,163,322 -24.06 0.0326
2021-08-11 2021-06-30 13F PLUG POWER COM NEW 72919P202 44,807,168 -14,961,761 -25.03 1,531,960 -28.48 0.0426
2021-05-07 2021-03-31 13F PLUG POWER COM NEW 72919P202 59,768,929 12,607,594 26.73 2,142,117 33.95 0.0630
2021-02-05 2020-12-31 13F PLUG POWER COM NEW 72919P202 47,161,335 6,007,080 14.60 1,599,242 189.78 0.0510
2020-11-06 2020-09-30 13F PLUG POWER COM NEW 72919P202 41,154,255 7,629,118 22.76 551,879 100.51 0.0204
2020-08-14 2020-06-30 13F PLUG POWER COM NEW 72919P202 33,525,137 6,101,377 22.25 275,241 183.52 0.0110
2020-05-01 2020-03-31 13F PLUG POWER COM NEW 72919P202 27,423,760 5,883,362 27.31 97,080 42.63 0.0047
2020-02-13 2019-12-31 13F PLUG POWER COM NEW 72919P202 21,540,398 4,498,408 26.40 68,066 51.87 0.0026
2019-11-08 2019-09-30 13F PLUG POWER COM NEW 72919P202 17,041,990 684,498 4.18 44,819 21.77 0.0019
2019-08-22 2019-06-30 13F/A-1 PLUG POWER COM NEW 72919P202 16,357,492 -1,006,864 -5.80 36,805 -11.68 0.0016
2019-08-13 2019-06-30 13F PLUG POWER COM NEW 72919P202 16,357,492 -1,006,864 36,805
2019-05-09 2019-03-31 13F PLUG POWER COM NEW 72919P202 17,364,356 836,534 5.06 41,674 103.35 0.0019
2019-02-08 2018-12-31 13F PLUG POWER COM NEW 72919P202 16,527,822 1,786,566 12.12 20,494 -27.59 0.0010
2018-11-09 2018-09-30 13F PLUG POWER COM NEW 72919P202 14,741,256 116,133 0.79 28,301 -4.20 0.0012
2018-08-09 2018-06-30 13F PLUG POWER COM NEW 72919P202 14,625,123 125,482 0.87 29,543 7.81 0.0014
2018-05-09 2018-03-31 13F PLUG POWER COM NEW 72919P202 14,499,641 142,606 0.99 27,404 -19.12 0.0013
2018-02-09 2017-12-31 13F PLUG POWER COM NEW 72919P202 14,357,035 239,317 1.70 33,883 -8.04 0.0016
2017-11-14 2017-09-30 13F PLUG POWER COM NEW 72919P202 14,117,718 -183,331 -1.28 36,847 26.30 0.0019
2017-08-10 2017-06-30 13F PLUG POWER COM NEW 72919P202 14,301,049 2,081,889 17.04 29,175 73.02 0.0015
2017-05-12 2017-03-31 13F PLUG POWER COM NEW 72919P202 12,219,160 12,192,632 45,961.37 16,862 52,593.75 0.0009
2017-02-10 2016-12-31 13F PLUG POWER COM NEW 72919P202 26,528 -2,141 -7.47 32 -34.69 0.0000
2016-11-08 2016-09-30 13F PLUG POWER COM NEW 72919P202 28,669 3,785 15.21 49 6.52 0.0001
2016-08-10 2016-06-30 13F PLUG POWER COM NEW 72919P202 24,884 15,184 156.54 46 130.00 0.0001
2016-05-10 2016-03-31 13F PLUG POWER COM NEW 72919P202 9,700 5,811 149.42 20 150.00 0.0000
2016-02-11 2015-12-31 13F PLUG POWER COM NEW 72919P202 3,889 0 0.00 8 14.29 0.0000
2015-11-13 2015-09-30 13F PLUG POWER COM NEW 72919P202 3,889 0 0.00 7 -30.00 0.0000
2015-08-07 2015-06-30 13F PLUG POWER COM NEW 72919P202 3,889 0 0.00 10 0.00 0.0000
2015-05-13 2015-03-31 13F PLUG POWER COM NEW 72919P202 3,889 0 0.00 10 -16.67 0.0000
2015-02-09 2014-12-31 13F PLUG POWER COM NEW 72919P202 3,889 0 0.00 12 -33.33 0.0000
2014-10-29 2014-09-30 13F PLUG POWER COM NEW 72919P202 3,889 0 0.00 18 0.00 0.0000
2014-08-06 2014-06-30 13F PLUG POWER COM NEW 72919P202 3,889 3,889 18 0.0000
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.