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AI / Datacenter

POWER SOLUTIONS INTERNATIONAL, INC..

PSIX · CUSIP 73933G202

Held by
16 funds
Q1 2026
Total $ held
$129M
Q1 2026
Total shares
2.12M
across our funds
Insider net
+$0
net buying

Institutional holdings over time

Total shares held

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Number of funds holding

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Insider flow (Form 4 open-market)

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This quarter's moves· Q4 2025Q1 2026

FundBucketPrev sharesLatest sharesΔ valueAction
Vanguard CMPassive index682K+$42MNew
VanguardPassive index540K$31MExit
Vanguard PMPassive index105K+$6MNew
RenaissanceMulti-manager108K$6MExit
BlackRockPassive index674K716K+$5MAdded
Point72Multi-manager72K5K$4MTrimmed
Vanguard FTCPassive index49K+$3MNew
GeodePassive index192K196K+$998KAdded
State StreetPassive index165K171K+$973KAdded
CitadelMulti-manager16K28K+$769KAdded
Two SigmaMulti-manager61K46K$649KTrimmed
MillenniumMulti-manager95K98K+$550KAdded
Vanguard AMPassive index6K+$342KNew
BalyasnyMulti-manager5K8K+$251KAdded
Vanguard GAPassive index4K+$239KNew
Vanguard AUPassive index2K+$150KNew
FidelityActive mutual fund2K3K+$23KAdded
T. Rowe PriceActive mutual fund5K6K+$100Added

Top holders (latest quarter)

FundBucketSharesValue
BlackRockPassive index716K$44M
Vanguard CMPassive index682K$42M
GeodePassive index196K$12M
State StreetPassive index171K$10M
Vanguard PMPassive index105K$6M
MillenniumMulti-manager98K$6M
Vanguard FTCPassive index49K$3M
Two SigmaMulti-manager46K$3M
CitadelMulti-manager28K$2M
BalyasnyMulti-manager8K$511K
Vanguard AMPassive index6K$342K
Point72Multi-manager5K$326K
Vanguard GAPassive index4K$239K
FidelityActive mutual fund3K$156K
Vanguard AUPassive index2K$150K