Plug Power Inc.
US ˙ NasdaqCM ˙ US72919P2020

SecurityPLUG / Plug Power Inc.
InstitutionAlps Advisors Inc
Latest Disclosed Ownership2,130,585 shares
Latest Disclosed Value $ 4,815,122
Alps Advisors Inc reports 7.39% increase in ownership of PLUG / Plug Power Inc.

On May 8, 2026 - Alps Advisors Inc filed a 13F-HR form disclosing ownership of 2,130,585 shares of Plug Power Inc. (US:PLUG) valued at $4,815,122 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,983,911 shares of Plug Power Inc.. This represents a change in shares of 7.39% during the quarter. The current value of the position is $7,861,859 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-08 2026-03-31 13F PLUG PWR COM NEW 72919P202 2,130,585 146,674 7.39 4,815 23.21 0.0208
2026-02-12 2025-12-31 13F PLUG POWER COM NEW 72919P202 1,983,911 232,553 13.28 3,908 -4.22 0.0228
2025-11-05 2025-09-30 13F PLUG POWER COM NEW 72919P202 1,751,358 -91,785 -4.98 4,081 48.58 0.0227
2025-08-11 2025-06-30 13F PLUG POWER COM NEW 72919P202 1,843,143 395,347 27.31 2,746 40.53 0.0158
2025-04-30 2025-03-31 13F PLUG POWER COM NEW 72919P202 1,447,796 49,325 3.53 1,955 -34.39 0.0113
2025-02-13 2024-12-31 13F PLUG POWER COM NEW 72919P202 1,398,471 -454,853 -24.54 2,979 -28.89 0.0188
2024-11-12 2024-09-30 13F PLUG POWER COM NEW 72919P202 1,853,324 157,323 9.28 4,189 6.00 0.0280
2024-08-13 2024-06-30 13F PLUG POWER COM NEW 72919P202 1,696,001 -28,856 -1.67 3,952 -33.41 0.0271
2024-05-14 2024-03-31 13F PLUG POWER COM NEW 72919P202 1,724,857 -313,172 -15.37 5,934 -35.31 0.0420
2024-02-14 2023-12-31 13F PLUG POWER COM NEW 72919P202 2,038,029 -356,222 -14.88 9,171 -49.60 0.0721
2023-11-14 2023-09-30 13F PLUG POWER COM NEW 72919P202 2,394,251 -145,956 -5.75 18,196 -31.05 0.1510
2023-08-14 2023-06-30 13F PLUG POWER COM NEW 72919P202 2,540,207 587,974 30.12 26,393 15.35 0.2293
2023-05-10 2023-03-31 13F PLUG POWER COM NEW 72919P202 1,952,233 -283,018 -12.66 22,880 -17.25 0.2022
2023-02-14 2022-12-31 13F PLUG POWER COM NEW 72919P202 2,235,251 722,147 47.73 27,650 -13.02 0.2466
2022-11-14 2022-09-30 13F PLUG POWER COM NEW 72919P202 1,513,104 -373,745 -19.81 31,790 1.68 0.3008
2022-08-15 2022-06-30 13F/A-1 PLUG POWER COM NEW 72919P202 1,886,849 311,961 19.81 31,265 -30.61 0.3040
2022-08-11 2022-06-30 13F PLUG POWER COM NEW 72919P202 1,886,849 311,961 31,265 0.2993
2022-05-16 2022-03-31 13F PLUG POWER COM NEW 72919P202 1,574,888 199,289 14.49 45,058 16.03 0.4888
2022-02-09 2021-12-31 13F PLUG POWER COM NEW 72919P202 1,375,599 -441,106 -24.28 38,833 -16.31 0.4369
2021-11-15 2021-09-30 13F PLUG POWER COM NEW 72919P202 1,816,705 335,255 22.63 46,399 -8.39 0.4471
2021-08-11 2021-06-30 13F PLUG POWER COM NEW 72919P202 1,481,450 240,898 19.42 50,651 13.92 0.4480
2021-05-07 2021-03-31 13F PLUG POWER COM NEW 72919P202 1,240,552 -124,807 -9.14 44,461 -3.97 0.4342
2021-02-03 2020-12-31 13F PLUG POWER COM NEW 72919P202 1,365,359 -176,430 -11.44 46,299 123.94 0.5214
2020-11-05 2020-09-30 13F/A-1 PLUG POWER COM NEW 72919P202 1,541,789 190,506 14.10 20,675 86.36 0.3044
2020-11-04 2020-09-30 13F PLUG POWER COM NEW 72919P202 1,541,789 190,506 20,675 264,974.8943
2020-08-05 2020-06-30 13F PLUG POWER COM NEW 72919P202 1,351,283 307,746 29.49 11,094 200.32 0.1487
2020-05-06 2020-03-31 13F PLUG POWER COM NEW 72919P202 1,043,537 312,866 42.82 3,694 59.98 0.0571
2020-02-07 2019-12-31 13F PLUG POWER COM NEW 72919P202 730,671 224,852 44.45 2,309 73.61 0.0180
2019-11-04 2019-09-30 13F PLUG POWER COMMON STOCK 72919P202 505,819 109,732 27.70 1,330 49.27 0.0104
2019-08-07 2019-06-30 13F PLUG POWER COMMON STOCK 72919P202 396,087 207,701 110.25 891 97.12 0.0066
2019-05-01 2019-03-31 13F PLUG POWER COMMON STOCK 72919P202 188,386 68,696 57.39 452 205.41 0.0032
2019-02-04 2018-12-31 13F PLUG POWER COMMON STOCK 72919P202 119,690 29,181 32.24 148 -14.94 0.0011
2018-10-25 2018-09-30 13F PLUG POWER COMMON STOCK 72919P202 90,509 71,955 387.81 174 370.27 0.0011
2018-08-02 2018-06-30 13F/A-2 Plug Power COMMON STOCK 72919P202 18,554 18,554 37 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.