Plug Power Inc.
CH ˙ SWX ˙ US72919P2020
SecurityCH:PLUG / Plug Power Inc.
InstitutionAqr Capital Management Llc
ManagerCliff Asness
Latest Disclosed Ownership38,441 shares
Latest Disclosed Value $ 84,185
Aqr Capital Management Llc reports 55.39% increase in ownership of PLUG / Plug Power Inc.

On May 15, 2026 - Aqr Capital Management Llc filed a 13F-HR form disclosing ownership of 38,441 shares of Plug Power Inc. (CH:PLUG) valued at $84,185 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 24,738 shares of Plug Power Inc.. This represents a change in shares of 55.39% 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.

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)
2026-05-15 2026-03-31 13F PLUG PWR COM NEW 72919P202 38,441 13,703 55.39 84 75.00 0.0000
2026-02-17 2025-12-31 13F PLUG POWER COM NEW 72919P202 24,738 5,314 27.36 49 14.29 0.0000
2025-11-14 2025-09-30 13F PLUG POWER COM NEW 72919P202 19,424 1,270 7.00 43 90.91 0.0000
2025-08-14 2025-06-30 13F PLUG POWER COM NEW 72919P202 18,154 2,922 19.18 23 15.79 0.0000
2025-05-15 2025-03-31 13F PLUG POWER COM NEW 72919P202 15,232 15,232 20 0.0000
2022-05-16 2022-03-31 13F PLUG POWER COM NEW 72919P202 0 -11,775 -100.00 0 -100.00
2022-02-14 2021-12-31 13F PLUG POWER COM NEW 72919P202 11,775 -56,055 -82.64 332 -80.75 0.0006
2021-11-15 2021-09-30 13F PLUG POWER COM NEW 72919P202 67,830 -60,595 -47.18 1,725 -60.72 0.0032
2021-08-16 2021-06-30 13F PLUG POWER COM NEW 72919P202 128,425 -52,851 -29.15 4,391 -32.41 0.0076
2021-05-17 2021-03-31 13F PLUG POWER COM NEW 72919P202 181,276 -53,184 -22.68 6,497 -18.29 0.0106
2021-02-16 2020-12-31 13F PLUG POWER COM NEW 72919P202 234,460 16,560 7.60 7,951 172.11 0.0141
2020-11-16 2020-09-30 13F PLUG POWER COM NEW 72919P202 217,900 132,167 154.16 2,922 315.06 0.0049
2020-08-17 2020-06-30 13F PLUG POWER COM NEW 72919P202 85,733 -37,466 -30.41 704 61.47 0.0011
2020-05-15 2020-03-31 13F PLUG POWER COM NEW 72919P202 123,199 16,605 15.58 436 29.38 0.0007
2020-02-14 2019-12-31 13F PLUG POWER COM NEW 72919P202 106,594 40,250 60.67 337 93.68 0.0004
2019-11-14 2019-09-30 13F PLUG POWER COM NEW 72919P202 66,344 0 0.00 174 16.78 0.0002
2019-08-14 2019-06-30 13F PLUG POWER COM NEW 72919P202 66,344 0 0.00 149 -6.29 0.0002
2019-05-14 2019-03-31 13F PLUG POWER COM NEW 72919P202 66,344 -29,413 -30.72 159 33.61 0.0002
2019-02-14 2018-12-31 13F PLUG POWER COM NEW 72919P202 95,757 0 0.00 119 -35.33 0.0001
2018-11-15 2018-09-30 13F/A-1 PLUG POWER COM NEW 72919P202 95,757 0 0.00 184 -4.66 0.0002
2018-11-14 2018-09-30 13F PLUG POWER COM NEW 72919P202 95,757 0 193
2018-08-14 2018-06-30 13F PLUG POWER COM NEW 72919P202 95,757 0 0.00 193 6.63 0.0002
2018-05-15 2018-03-31 13F PLUG POWER COM NEW 72919P202 95,757 50,095 109.71 181 67.59 0.0002
2018-02-14 2017-12-31 13F PLUG POWER COM NEW 72919P202 45,662 45,662 108 0.0001
2015-11-16 2015-09-30 13F PLUG POWER COM NEW 72919P202 0 -37,400 -100.00 0 -100.00
2015-08-14 2015-06-30 13F PLUG POWER COM NEW 72919P202 37,400 -8,000 -17.62 92 -22.03 0.0002
2015-05-15 2015-03-31 13F PLUG POWER COM NEW 72919P202 45,400 -126,700 -73.62 118 -77.13 0.0003
2015-04-22 2014-12-31 13F/A-1 PLUG POWER COM NEW 72919P202 172,100 -133,000 -43.59 516 -63.14 0.0011
2015-02-17 2014-12-31 13F PLUG POWER COM NEW 72919P202 172,100 516
2014-11-14 2014-09-30 13F PLUG POWER COM NEW 72919P202 305,100 46,300 17.89 1,400 15.61 0.0038
2014-08-14 2014-06-30 13F PLUG POWER COM NEW 72919P202 258,800 62,600 31.91 1,211 -13.07 0.0033
2014-05-15 2014-03-31 13F PLUG POWER COM NEW 72919P202 196,200 196,200 1,393 0.0042
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.