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Plug Power
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503 hedge funds and large institutions have $2.2B invested in Plug Power in 2026 Q2 according to their latest regulatory filings, with 87 funds opening new positions, 184 increasing their positions, 103 reducing their positions, and 44 closing their positions.

New
Increased
Maintained
Reduced
Closed

132% more call options, than puts

Call options by funds: $81M | Put options by funds: $34.8M

98% more first-time investments, than exits

New positions opened: 87 | Existing positions closed: 44

79% more repeat investments, than reductions

Existing positions increased: 184 | Existing positions reduced: 103

29% more capital invested

Capital invested by funds: $1.7B → $2.2B (+$496M)

7% more funds holding

Funds holding: 469 → 503 (+34)

4.15% more ownership

Funds ownership: 54.1% → 58.25% (+4.1%)

Holders
503
Holders Change
+34
Holders Change %
+7.25%
% of All Funds
6.08%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
87
Increased
184
Reduced
103
Closed
44
Calls
$81M
Puts
$34.8M
Net Calls
+$46.1M
Net Calls Change
-$6.8M

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$100M
2
Citadel Advisors
Citadel Advisors
Florida
+$73.2M
3
Handelsbanken Fonder
Handelsbanken Fonder
Sweden
+$48.8M
4
Vanguard Portfolio Management
Vanguard Portfolio Management
Pennsylvania
+$20.6M
5
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$17.2M

Top Sellers

Rank Fund Capital Flow
1
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$84.9M
2
Renaissance Technologies
Renaissance Technologies
New York
-$50.1M
3
HF
HRT Financial
New York
-$26.8M
4
UBS Group
UBS Group
Switzerland
-$26.6M
5
Two Sigma Investments
Two Sigma Investments
New York
-$15M
Name Holding Trade Value Shares
Change 		Change in
Stake
TPCW
501
TD Private Client Wealth
New York
$2 – – –
HF
502
HRT Financial
New York
– -$26.8M -11,866,225 Closed
CAU
503
Caxton Associates (UK)
– -$2.3M -1,016,724 Closed
XT
504
XTX Topco
Cayman Islands
– -$1.5M -664,889 Closed
AWP
505
Abacus Wealth Partners
California
– -$276K -122,236 Closed
EGM
506
Engineers Gate Manager
New York
– -$202K -89,227 Closed
Walleye Capital
507
Walleye Capital
New York
– -$267K -84,929 Closed
OMC
508
Old Mission Capital
Illinois
– -$191K -84,764 Closed
BHCM
509
Brevan Howard Capital Management
Jersey
– -$172K -76,155 Closed
DS
510
DRW Securities
Illinois
– -$162K -74,648 Closed
JFG
511
Jefferies Financial Group
New York
– -$151K -66,700 Closed
Group One Trading
512
Group One Trading
Illinois
– -$139K -44,247 Closed
GSC
513
Ground Swell Capital
South Carolina
– -$95.5K -42,235 Closed
HIP
514
HUB Investment Partners
Texas
– -$92.7K -41,029 Closed
CCM
515
Conway Capital Management
California
– -$81.4K -36,000 Closed
Calamos Advisors
516
Calamos Advisors
Illinois
– -$67.8K -30,000 Closed
BBA
517
Baader Bank Aktiengesellschaft
Germany
– -$42.4K -28,566 Closed
KG
518
Kilter Group
New York
– -$53.7K -23,750 Closed
FC
519
Farringdon Capital
United Kingdom
– -$46.6K -20,605 Closed
Teacher Retirement System of Texas
520
Teacher Retirement System of Texas
Texas
– -$41.6K -18,407 Closed
OHWP
521
Oak Harbor Wealth Partners
North Carolina
– -$35K -15,500 Closed
AAM
522
Azzad Asset Management
Virginia
– -$33.2K -14,678 Closed
Capstone Investment Advisors
523
Capstone Investment Advisors
New York
– -$31.7K -14,007 Closed
QT
524
Quantbot Technologies
New York
– -$31.2K -13,814 Closed
BFG
525
Bouchey Financial Group
New York
– -$34.4K -12,551 Closed
18 19 20
21
22

PLUG Hedge Fund Activity: Q2 2026 in Review

503 of the 8,279 institutional investors tracked by Wall St. Rank reported a position in Plug Power (PLUG) for Q2 2026, worth a combined $2.2B — up 29% from $1.7B a quarter earlier.

Buyers outnumbered sellers: 87 funds opened new PLUG positions and 44 closed out — a net gain of 43 holders — while 184 added to existing stakes and 103 trimmed.

The largest buyer was BlackRock, adding an estimated $100M. The largest seller was D.E. Shaw & Co, cutting an estimated $84.9M.

  • 503 institutional investors held Plug Power (PLUG) as of Q2 2026, up from 469 in Q1 2026.
  • Funds reported $2.2B of Plug Power stock for Q2 2026, up 29% quarter-over-quarter.
  • 87 funds opened new Plug Power positions in Q2 2026 and 44 closed out, a net change of +43 holders.
  • The largest Plug Power buyer in Q2 2026 was BlackRock, an estimated $100M added.
  • The largest Plug Power seller in Q2 2026 was D.E. Shaw & Co, an estimated $84.9M sold.

Based on aggregated 13F filings for Q2 2026.