Ballard Power Systems Inc.: which funds bought and sold

Institutions that bought and sold Ballard Power Systems shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 97 institutions that filed 13F reports for both quarters added to or opened positions in Ballard Power Systems, and 60 cut or closed them. Together they added a net 14.8M shares, +16.6% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 11.4M shares (+38.3%); index fund managers were net sellers of 653K shares (−11.9%). 40 opened a new position and 20 sold out entirely.

Bought, Q2 2026 97 institutions, 40 of them new holders Sold, Q2 2026 60 institutions, 20 of them sold out

Net change, all compared +14.8M shares (+16.6%)

Net change, active managers +11.4M shares (+38.3%), 20 bought, 9 sold

Buyers versus sellers

institutions compared, 185

97 bought 28 60 sold

Active managers and hedge funds 20 bought · 9 sold · +11.4M

Index fund managers 3 bought · 2 sold · −653K

Other institutions 74 bought · 49 sold · +4.1M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Acadian Asset Management LLC Active manager	+4.5M New position	4.5M	$17.5M
Renaissance Technologies LLC Hedge fund	+3.8M +671.8%	4.3M	$16.9M
Jane Street Group, LLC	+2.1M +258.3%	2.9M	$11.4M
Hillsdale Investment Management Inc.	+1.7M New position	1.7M	$6.6M
D. E. Shaw & Co., Inc. Hedge fund	+1.5M +18.4%	9.8M	$38.1M
SG Americas Securities, LLC	+1.4M +2383.1%	1.4M	$5.5M
Man Group PLC Hedge fund	+1.2M New position	1.2M	$4.6M
Nuveen, LLC	+1.0M +578.5%	1.2M	$4.8M
Goldman Sachs Group Inc	+1000K +634.0%	1.2M	$4.5M
Voloridge Investment Management, LLC Hedge fund	+909K New position	909K	$3.5M
Legal & General Group PLC	+828K +12.9%	7.2M	$28.1M
Trexquant Investment LP Hedge fund	+650K New position	650K	$2.5M
Aquatic Capital Management LLC	+588K New position	588K	$2.3M
Public Employees Retirement System Of Ohio	+465K +708.8%	531K	$2.1M
Boothbay Fund Management, LLC Hedge fund	+388K New position	388K	$1.5M
Gotham Asset Management, LLC Hedge fund	+365K New position	365K	$1.4M
Mirae Asset Global Etfs Holdings Ltd.	+363K +13.0%	3.1M	$12.2M
American Century Companies Inc Active manager	+360K +402.7%	450K	$1.8M
Y-Intercept (Hong Kong) Ltd	+339K New position	339K	$1.3M
CIBC World Market Inc.	+313K +887.3%	348K	$1.4M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Acadian Asset Management LLC Active manager	+4.5M New position	4.5M	$17.5M
Renaissance Technologies LLC Hedge fund	+3.8M +671.8%	4.3M	$16.9M
D. E. Shaw & Co., Inc. Hedge fund	+1.5M +18.4%	9.8M	$38.1M
Man Group PLC Hedge fund	+1.2M New position	1.2M	$4.6M
Voloridge Investment Management, LLC Hedge fund	+909K New position	909K	$3.5M
Trexquant Investment LP Hedge fund	+650K New position	650K	$2.5M
Boothbay Fund Management, LLC Hedge fund	+388K New position	388K	$1.5M
Gotham Asset Management, LLC Hedge fund	+365K New position	365K	$1.4M
American Century Companies Inc Active manager	+360K +402.7%	450K	$1.8M
Exoduspoint Capital Management, LP Hedge fund	+240K New position	240K	$932,359

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
UBS Group AG	−2.9M −49.8%	2.9M	$11.4M
BNP Paribas Financial Markets	−1.9M −50.9%	1.9M	$7.2M
Two Sigma Investments, LP Hedge fund	−1.5M −12.3%	10.8M	$42.1M
Invesco Ltd.	−1.3M −32.4%	2.7M	$10.4M
Van Eck Associates Corp	−804K −31.6%	1.7M	$6.8M
Gsa Capital Partners LLP	−752K −73.9%	265K	$1M
Jpmorgan Chase & Co	−726K −60.4%	477K	$1.8M
State Street Corp Index funds	−678K −13.6%	4.3M	$16.7M
Canada Life Assurance Co	−613K −31.8%	1.3M	$5.1M
Point72 Asset Management, L.P. Hedge fund	−599K Sold out	0	—
Qube Research & Technologies Ltd Hedge fund	−492K −23.3%	1.6M	$6.3M
Millennium Management LLC Hedge fund	−317K −16.0%	1.7M	$6.5M
Royal Bank Of Canada	−261K −40.9%	376K	$1.5M
Marshall Wace, LLP Hedge fund	−250K −96.0%	11K	$40,845
Storebrand Asset Management As	−240K −35.2%	443K	$1.7M
Citadel Advisors LLC Hedge fund	−131K −4.5%	2.8M	$10.7M
Axq Capital, LP	−123K Sold out	0	—
Dynamic Technology Lab Private Ltd	−93K −81.1%	22K	$85,000
Virtu Financial LLC	−52K −54.9%	42K	$165,000
Banque Cantonale Vaudoise	−50K Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Two Sigma Investments, LP Hedge fund	−1.5M −12.3%	10.8M	$42.1M
Point72 Asset Management, L.P. Hedge fund	−599K Sold out	0	—
Qube Research & Technologies Ltd Hedge fund	−492K −23.3%	1.6M	$6.3M
Millennium Management LLC Hedge fund	−317K −16.0%	1.7M	$6.5M
Marshall Wace, LLP Hedge fund	−250K −96.0%	11K	$40,845
Citadel Advisors LLC Hedge fund	−131K −4.5%	2.8M	$10.7M
Engineers Gate Manager LP Hedge fund	−34K −17.3%	162K	$628,912
Schonfeld Strategic Advisors LLC Hedge fund	−31K −10.4%	266K	$1M
Voleon Capital Management LP Hedge fund	−20K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Acadian Asset Management LLCActive manager	4.5M	$17.5M
Hillsdale Investment Management Inc.	1.7M	$6.6M
Man Group PLCHedge fund	1.2M	$4.6M
Voloridge Investment Management, LLCHedge fund	909K	$3.5M
Trexquant Investment LPHedge fund	650K	$2.5M
Aquatic Capital Management LLC	588K	$2.3M
Boothbay Fund Management, LLCHedge fund	388K	$1.5M
Gotham Asset Management, LLCHedge fund	365K	$1.4M
Y-Intercept (Hong Kong) Ltd	339K	$1.3M
Walleye Trading LLC	265K	$1M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Point72 Asset Management, L.P.Hedge fund	599K	$1.5M
Axq Capital, LP	123K	$298,050
Banque Cantonale Vaudoise	50K	$122,000
Optiver Holding B.V.	24K	$58,690
Voleon Capital Management LPHedge fund	20K	$47,812
Scientech Research LLC	19K	$46,641
Apollon Wealth Management, LLC	14K	$34,969
State Of Wisconsin Investment Board	14K	$33,391
Tidal Investments LLC	11K	$27,796
Connor, Clark & Lunn Investment Management Ltd.	11K	$26,246

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 166
Ten largest holders: 59.8%
Index fund managers: 4.6%
Active managers and hedge funds: 39.3%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	20	9	15	2	+11.4M	+38.3%
Index fund managers	3	2	0	0	−653K	−11.9%
Other institutions	74	49	25	18	+4.1M	+7.6%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Ballard Power Systems.

Only managers that filed a holdings report for both quarters are compared (185 here). 5 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

← Back to Ballard Power Systems Inc. · Insiders · Politicians