Pioneer Power Solutions, Inc.: which funds bought and sold

Institutions that bought and sold Pioneer Power Solutions 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, 18 institutions that filed 13F reports for both quarters added to or opened positions in Pioneer Power Solutions, and 10 cut or closed them. Together they added a net 456K shares, +44.7% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 178K shares (+121.0%); index fund managers were net buyers of 51K shares (+12.1%). 8 opened a new position and 6 sold out entirely.

Bought, Q2 2026 18 institutions, 8 of them new holders Sold, Q2 2026 10 institutions, 6 of them sold out

Net change, all compared +456K shares (+44.7%)

Net change, active managers +178K shares (+121.0%), 3 bought, 2 sold

Buyers versus sellers

institutions compared, 40

18 bought 12 10 sold

Active managers and hedge funds 3 bought · 2 sold · +178K

Index fund managers 4 bought · 1 sold · +51K

Other institutions 11 bought · 7 sold · +226K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Acadian Asset Management LLC Active manager	+128K New position	128K	$503,000
Jane Street Group, LLC	+114K New position	114K	$450,747
Citadel Advisors LLC Hedge fund	+71K New position	71K	$278,928
HRT Financial LP	+65K New position	65K	$255,000
Renaissance Technologies LLC Hedge fund	+62K +97.0%	126K	$498,363
Blackrock, Inc. Index funds	+31K +109.2%	60K	$236,298
Susquehanna International Group, LLP	+25K +44.6%	80K	$316,654
Vanguard Fiduciary Trust Co Index funds	+13K +35.5%	48K	$190,030
UBS Group AG	+13K New position	13K	$49,340
Simplex Trading, LLC	+12K +3543.1%	13K	$50,238
Pekin Hardy Strauss, Inc.	+10K New position	10K	$39,400
Northern Trust Corp Index funds	+6,505 +45.0%	21K	$82,638
Xtx Topco Ltd	+5,698 +26.2%	27K	$108,082
Stratos Wealth Advisors, LLC	+3,500 +20.2%	21K	$81,952
Dimensional Fund Advisors LP	+2,869 +3.7%	80K	$315,562
Geode Capital Management, LLC Index funds	+1,250 +1.1%	117K	$459,611
Caitong International Asset Management Co., Ltd	+30 New position	30	$118
Strive Financial Group ,Llc	+3 New position	3	$12

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Acadian Asset Management LLC Active manager	+128K New position	128K	$503,000
Citadel Advisors LLC Hedge fund	+71K New position	71K	$278,928
Renaissance Technologies LLC Hedge fund	+62K +97.0%	126K	$498,363

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Squarepoint Ops LLC Hedge fund	−68K Sold out	0	—
Marshall Wace, LLP Hedge fund	−15K Sold out	0	—
Gsa Capital Partners LLP	−13K Sold out	0	—
Group One Trading LLC	−8,928 Sold out	0	—
Tower Research Capital LLC (TRC)	−1,663 −88.3%	220	$867
Armstrong Advisory Group, Inc	−400 Sold out	0	—
Vanguard Capital Management LLC Index funds	−349 −0.2%	196K	$771,405
Clarity Asset Management, Inc.	−250 Sold out	0	—
Osaic Holdings, Inc.	−5 −0.5%	1,076	$4,242
Sbi Securities Co., Ltd.	−3 −1.9%	158	$623

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Squarepoint Ops LLC Hedge fund	−68K Sold out	0	—
Marshall Wace, LLP Hedge fund	−15K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Acadian Asset Management LLCActive manager	128K	$503,000
Jane Street Group, LLC	114K	$450,747
Citadel Advisors LLCHedge fund	71K	$278,928
HRT Financial LP	65K	$255,000
UBS Group AG	13K	$49,340
Pekin Hardy Strauss, Inc.	10K	$39,400
Caitong International Asset Management Co., Ltd	30	$118
Strive Financial Group ,Llc	3	$12

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Squarepoint Ops LLCHedge fund	68K	$219,564
Marshall Wace, LLPHedge fund	15K	$50,225
Gsa Capital Partners LLP	13K	$44,000
Group One Trading LLC	8,928	$29,016
Armstrong Advisory Group, Inc	400	$1,300
Clarity Asset Management, Inc.	250	$813

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 35
Ten largest holders: 75.5%
Index fund managers: 32.2%
Active managers and hedge funds: 22.0%

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	3	2	2	2	+178K	+121.0%
Index fund managers	4	1	0	0	+51K	+12.1%
Other institutions	11	7	6	4	+226K	+50.5%

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 Pioneer Power Solutions.

Only managers that filed a holdings report for both quarters are compared (40 here). 1 other holder is 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.

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