Plug Power Inc.
MX ˙ BMV ˙ US72919P2020
SecurityMX:PLUG / Plug Power Inc.
InstitutionPinnacle Associates Ltd
Latest Disclosed Ownership2,105,193 shares
Latest Disclosed Value $ 4,757,736
Pinnacle Associates Ltd reports 8.38% decrease in ownership of PLUG / Plug Power Inc.

On April 21, 2026 - Pinnacle Associates Ltd filed a 13F-HR form disclosing ownership of 2,105,193 shares of Plug Power Inc. (MX:PLUG) valued at $4,757,736 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 2,297,851 shares of Plug Power Inc.. This represents a change in shares of -8.38% during the quarter.

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)
2026-04-21 2026-03-31 13F PLUG PWR COM NEW 72919P202 2,105,193 -192,658 -8.38 4,758 5.10 0.0611
2026-02-05 2025-12-31 13F PLUG POWER COM NEW 72919P202 2,297,851 -119,911 -4.96 4,527 -19.65 0.0581
2025-11-13 2025-09-30 13F PLUG POWER COM NEW 72919P202 2,417,762 4,957 0.21 5,633 56.69 0.0748
2025-08-04 2025-06-30 13F PLUG POWER COM NEW 72919P202 2,412,805 -665,151 -21.61 3,595 -13.48 0.0520
2025-05-06 2025-03-31 13F PLUG POWER COM NEW 72919P202 3,077,956 -79,750 -2.53 4,155 -38.22 0.0609
2025-02-14 2024-12-31 13F PLUG POWER COM NEW 72919P202 3,157,706 487,711 18.27 6,726 -44.02 0.0913
2024-10-25 2024-09-30 13F PLUG POWER COM NEW 72919P202 2,669,995 -1,076,999 -28.74 12,015 37.62 0.2043
2024-07-30 2024-06-30 13F PLUG POWER COM NEW 72919P202 3,746,994 -28,814 -0.76 8,730 -32.78 0.1367
2024-04-26 2024-03-31 13F PLUG POWER COM NEW 72919P202 3,775,808 1,105,813 41.42 12,989 8.11 0.2047
2024-01-19 2023-12-31 13F PLUG POWER COM NEW 72919P202 2,669,995 -86,473 -3.14 12,015 -42.65 0.2022
2023-10-24 2023-09-30 13F PLUG POWER COM NEW 72919P202 2,756,468 -56,156 -2.00 20,949 -28.31 0.3894
2023-07-27 2023-06-30 13F PLUG POWER COM NEW 72919P202 2,812,624 652,595 30.21 29,223 15.44 0.5071
2023-05-05 2023-03-31 13F PLUG POWER COM NEW 72919P202 2,160,029 -4,985 -0.23 25,316 -5.47 0.5178
2023-02-01 2022-12-31 13F/A-1 PLUG POWER COM NEW 72919P202 2,165,014 -20,351 -0.93 26,781 -41.67 0.5836
2023-01-25 2022-12-31 13F PLUG POWER COM NEW 72919P202 2,150,372 -34,993 33,825 0.0007
2022-11-01 2022-09-30 13F PLUG POWER COM NEW 72919P202 2,185,365 -65,588 -2.91 45,915 23.10 1.0539
2022-08-02 2022-06-30 13F PLUG POWER COM NEW 72919P202 2,250,953 -21,708 -0.96 37,298 -42.64 0.8133
2022-05-05 2022-03-31 13F PLUG POWER COM NEW 72919P202 2,272,661 -72,565 -3.09 65,021 -1.79 1.1509
2022-02-02 2021-12-31 13F PLUG POWER COM NEW 72919P202 2,345,226 -27,862 -1.17 66,206 9.23 1.1420
2021-10-19 2021-09-30 13F PLUG POWER COM NEW 72919P202 2,373,088 -67,626 -2.77 60,609 -27.37 1.1173
2021-08-02 2021-06-30 13F PLUG POWER COM NEW 72919P202 2,440,714 -85,035 -3.37 83,448 -7.82 1.5088
2021-05-12 2021-03-31 13F PLUG POWER COM NEW 72919P202 2,525,749 -1,402,439 -35.70 90,523 -32.04 1.7263
2021-01-26 2020-12-31 13F PLUG POWER COM NEW 72919P202 3,928,188 -2,031,575 -34.09 133,205 66.67 2.7048
2020-10-23 2020-09-30 13F PLUG POWER COM NEW 72919P202 5,959,763 -127,837 -2.10 79,920 59.91 1.8982
2020-08-14 2020-06-30 13F PLUG POWER COM NEW 72919P202 6,087,600 1,225,764 25.21 49,979 190.39 1.2324
2020-05-13 2020-03-31 13F PLUG POWER COM NEW 72919P202 4,861,836 2,174,013 80.88 17,211 102.63 0.5228
2020-02-03 2019-12-31 13F PLUG POWER COM NEW 72919P202 2,687,823 2,687,823 8,494 0.1860
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.