Plug Power PLUG Institutional Ownership

NASDAQ PLUG

$1.40 +0.00 (+0.36%)

As of: Oct 21, 2026 · 11:41 AM EDT

Institutions by Trading Activity

508 Institutions

Increased 276 54.3%

Unchanged 127 25.0%

Reduced 105 20.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

58.31%

▲+4.22 pp QoQ

Shares Held by Institutions

814.65Mn

of 1.40Bn outstanding

▲+7.98% QoQ

Shares Outstanding

1.40Bn

582.54Mn held outside 13F filers

Institutional Investors

508

filed 13F for Jun 2026

▲+39 vs prior quarter

Net Shares Added (QoQ)

+60.17Mn

accumulated since last quarter

Value of Holdings

$1.21Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Plug Power Inc (NASDAQ:PLUG) was held by 508 institutional investors that filed 13F reports for the quarter ended June 30, 2026.

Together they owned 58.31% of the outstanding stock in Q2 2026, up from 54.08% a quarter earlier.
Total shares held in PLUG rose 7.98% from Q1 2026; the number of holders rose 20.38% from Q2 2025.
Of these 508 holders, 276 added to their positions, 105 reduced their stakes and 127 left their positions unchanged.
In total, institutional investors held 814.65Mn shares of Plug Power at the end of Q2 2026, up 60.17Mn from the prior quarter and up 392.86Mn from a year earlier.
BlackRock, Inc. was the top holder of Plug Power as of June 30, 2026, with 184.03Mn shares, or 13.17% of shares outstanding.
Among existing holders, the largest additions to Plug Power in Q2 2026 came from BlackRock, Inc. (+31.94Mn shares), Citadel Advisors LLC (+23.29Mn shares), Handelsbanken Fonder AB (+15.54Mn shares), Vanguard Portfolio Management LLC (+6.57Mn shares) and T. Rowe Price Associates Inc (+5.47Mn shares).
The largest position reductions in PLUG for Q2 2026 were by D. E. Shaw & Co., Inc. (-27.02Mn shares), Renaissance Technologies LLC (-15.96Mn shares), UBS Group AG (-8.47Mn shares), Two Sigma Investments, LP (-4.79Mn shares) and American Century Companies Inc (-2.99Mn shares).
Business Quant data shows the 10 biggest positions in Plug Power as of Q2 2026 were held by BlackRock, Inc. (184.03Mn shares), Vanguard Portfolio Management LLC (66.18Mn shares), Vanguard Capital Management LLC (62.94Mn shares), State Street Corp (38.76Mn shares), Geode Capital Management, LLC (36.56Mn shares), UBS Group AG (33.13Mn shares), Citadel Advisors LLC (24.15Mn shares), Two Sigma Investments, LP (22.61Mn shares), D. E. Shaw & Co., Inc. (21.94Mn shares) and Dimensional Fund Advisors LP (19.5Mn shares).

Form 13F Holdings

509 Institutional Holders

Report period 30 Jun, 2026

Total shares held 814.65Mn

Of outstanding 58.31%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	184,032,469	13.17%	▲31,939,194	+21.00%	$498.73Mn
2	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	66,175,149	4.74%	▲6,571,343	+11.03%	$179.33Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	62,937,084	4.50%	▲386,646	+0.62%	$170.56Mn
4	State Street Corp	0000093751	38,763,529	2.77%	▲2,214,427	+6.06%	$105.05Mn
5	GEODE CAPITAL MANAGEMENT, LLC	0001214717	36,557,253	2.62%	▲1,848,436	+5.33%	$99.09Mn
6	UBS Group AG	0001610520	33,127,276	2.37%	▼8,466,203	-20.35%	$89.77Mn
7	CITADEL ADVISORS LLC	0001423053	24,149,952	1.73%	▲23,291,268	+2,712.44%	$65.45Mn
8	TWO SIGMA INVESTMENTS, LP	0001179392	22,610,124	1.62%	▼4,785,812	-17.47%	$61.27Mn
9	D. E. Shaw & Co., Inc.	0001009207	21,943,120	1.57%	▼27,015,380	-55.18%	$59.47Mn
10	DIMENSIONAL FUND ADVISORS LP	0000354204	19,502,331	1.40%	▲1,367,418	+7.54%	$52.84Mn
11	Handelsbanken Fonder AB	0001398318	19,014,270	1.36%	▲15,537,320	+446.87%	$51.53K
12	MILLENNIUM MANAGEMENT LLC	0001273087	13,703,609	0.98%	▲3,474,835	+33.97%	$37.14Mn
13	Northern Trust Corp	0000073124	12,754,552	0.91%	▲1,066,713	+9.13%	$34.56Mn
14	Goldman Sachs Group Inc	0000886982	12,387,564	0.89%	▲3,220,357	+35.13%	$33.57Mn
15	RENAISSANCE TECHNOLOGIES LLC	0001037389	11,779,800	0.84%	▼15,958,700	-57.53%	$31.92Mn
16	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	0001705339	11,681,867	0.84%	▲2,790,466	+31.38%	$31.53Mn
17	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	11,588,495	0.83%	▲294,748	+2.61%	$31.40Mn
18	Barclays Plc	0000312069	10,940,208	0.78%	▲2,225,248	+25.53%	$29.65Mn
19	VANGUARD FIDUCIARY TRUST CO	0000933478	9,962,553	0.71%	▲997,191	+11.12%	$27.00Mn
20	Legal & General Group Plc	0000764068	9,717,433	0.70%	▲540,103	+5.89%	$26.33Mn

Showing 1 to 20 of 509 holders