Plug Power Inc.
CH ˙ SWX ˙ US72919P2020
SecurityCH:PLUG / Plug Power Inc.
InstitutionCongress Park Capital LLC
Latest Disclosed Ownership73,850 shares
Latest Disclosed Value $ 166,901
Congress Park Capital LLC reports 4.23% increase in ownership of PLUG / Plug Power Inc.

On April 14, 2026 - Congress Park Capital LLC filed a 13F-HR form disclosing ownership of 73,850 shares of Plug Power Inc. (CH:PLUG) valued at $166,901 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 70,850 shares of Plug Power Inc.. This represents a change in shares of 4.23% 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)
2026-04-14 2026-03-31 13F PLUG PWR COM NEW 72919P202 73,850 3,000 4.23 167 19.42 0.0512
2026-01-14 2025-12-31 13F PLUG POWER COM NEW 72919P202 70,850 -12,500 -15.00 140 -28.35 0.0417
2025-10-08 2025-09-30 13F PLUG POWER COM NEW 72919P202 83,350 24,000 40.44 194 120.45 0.0604
2025-07-11 2025-06-30 13F PLUG POWER COM NEW 72919P202 59,350 20,500 52.77 88 69.23 0.0290
2025-04-22 2025-03-31 13F PLUG POWER COM NEW 72919P202 38,850 10,000 34.66 52 -14.75 0.0199
2025-01-15 2024-12-31 13F PLUG POWER COM NEW 72919P202 28,850 0 0.00 61 -6.15 0.0223
2024-10-09 2024-09-30 13F PLUG POWER COM NEW 72919P202 28,850 0 0.00 65 -2.99 0.0242
2024-07-12 2024-06-30 13F PLUG POWER COM NEW 72919P202 28,850 -10,000 -25.74 67 -49.62 0.0270
2024-04-16 2024-03-31 13F PLUG POWER COM NEW 72919P202 38,850 20,000 106.10 134 58.33 0.0591
2024-01-19 2023-12-31 13F PLUG POWER COM NEW 72919P202 18,850 2,350 14.24 85 -32.80 0.0415
2023-10-13 2023-09-30 13F PLUG POWER COM NEW 72919P202 16,500 700 4.43 125 -23.78 0.0653
2023-07-14 2023-06-30 13F PLUG POWER COM NEW 72919P202 15,800 -500 -3.07 164 -14.14 0.0820
2023-04-20 2023-03-31 13F PLUG POWER COM NEW 72919P202 16,300 0 0.00 191 -4.98 0.0993
2023-01-30 2022-12-31 13F PLUG POWER COM NEW 72919P202 16,300 -6,000 -26.91 202 -57.14 0.1183
2022-10-19 2022-09-30 13F PLUG POWER COM NEW 72919P202 22,300 -4,750 -17.56 469 4.69 0.2715
2022-07-22 2022-06-30 13F PLUG POWER COM NEW 72919P202 27,050 1,600 6.29 448 -38.46 0.2721
2022-05-02 2022-03-31 13F PLUG POWER COM NEW 72919P202 25,450 7,050 38.32 728 40.27 0.3651
2022-02-09 2021-12-31 13F PLUG POWER COM NEW 72919P202 18,400 4,900 36.30 519 50.43 0.2557
2021-11-03 2021-09-30 13F PLUG POWER COM NEW 72919P202 13,500 -310 -2.24 345 -26.91 0.1765
2021-08-13 2021-06-30 13F PLUG POWER COM NEW 72919P202 13,810 -1,640 -10.61 472 -14.80 0.2365
2021-04-19 2021-03-31 13F PLUG POWER COM NEW 72919P202 15,450 -4,550 -22.75 554 -18.29 0.3096
2021-01-19 2020-12-31 13F PLUG POWER COM NEW 72919P202 20,000 2,000 11.11 678 181.33 0.4014
2020-10-20 2020-09-30 13F PLUG POWER COM NEW 72919P202 18,000 -3,000 -14.29 241 40.12 0.1492
2020-07-27 2020-06-30 13F PLUG POWER COM NEW 72919P202 21,000 0 0.00 172 132.43 0.1320
2020-05-04 2020-03-31 13F PLUG POWER COM NEW 72919P202 21,000 6,000 40.00 74 57.45 0.0667
2020-01-31 2019-12-31 13F PLUG POWER COM NEW 72919P202 15,000 -7,500 -33.33 47 -20.34 0.0347
2019-10-24 2019-09-30 13F PLUG POWER COM NEW 72919P202 22,500 -2,500 -10.00 59 5.36 0.0495
2019-08-02 2019-06-30 13F PLUG POWER COM NEW 72919P202 25,000 -7,500 -23.08 56 -28.21 0.0443
2019-04-18 2019-03-31 13F PLUG POWER COM NEW 72919P202 32,500 0 0.00 78 95.00 0.0674
2019-02-05 2018-12-31 13F PLUG POWER COM NEW 72919P202 32,500 -12,150 -27.21 40 -53.49 0.0441
2018-10-29 2018-09-30 13F PLUG POWER COM NEW 72919P202 44,650 -7,500 -14.38 86 -18.10 0.0772
2018-08-06 2018-06-30 13F PLUG POWER COM NEW 72919P202 52,150 -6,000 -10.32 105 -4.55 0.1007
2018-04-17 2018-03-31 13F PLUG POWER COM NEW 72919P202 58,150 -2,950 -4.83 110 -23.61 0.1130
2018-02-13 2017-12-31 13F PLUG POWER COM NEW 72919P202 61,100 61,100 144 0.1451
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.