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Who owns Pioneer Power Solutions (PPSI) stock

35 funds reported Pioneer Power Solutions (PPSI) shares in their latest 13F filings, worth $6.7M in all. The largest holder is Vanguard Group ($1.1M). Last quarter 17 funds added to their stakes and 10 cut them.

Largest holders of PPSI (13F)Largest holders of PPSI (13F)Vanguard Group$1.1MVanguard Capital Management LLC$771KSpectrum Investment Advisors$542KAcadian Asset Management LLC$503KRenaissance Technologies LLC$498KGeode Capital Management, LLC$460KJane Street Group, LLC$451KSusquehanna International Group, …$317KDimensional Fund Advisors LP$316KCitadel Advisors LLC$279K

Largest holders (13F)

FundSharesValueChangeQuarter
Vanguard Group231,849$1.1Mincrease2025-12-31
Vanguard Capital Management LLC195,788$771Kdecrease2026-06-30
Spectrum Investment Advisors137,500$542Kunchanged2026-06-30
Acadian Asset Management LLC127,977$503Knew2026-06-30
Renaissance Technologies LLC126,488$498Kincrease2026-06-30
Geode Capital Management, LLC116,631$460Kincrease2026-06-30
Jane Street Group, LLC114,403$451Knew2026-06-30
Susquehanna International Group, LLP80,369$317Kincrease2026-06-30
Dimensional Fund Advisors LP80,092$316Kincrease2026-06-30
Citadel Advisors LLC70,794$279Knew2026-06-30
BlackRock59,974$236Kincrease2026-06-30
Vanguard Fiduciary Trust48,231$190Kincrease2026-06-30
State Street34,028$134Kunchanged2026-06-30
XTX Topco27,432$108Kincrease2026-06-30
NewEdge Advisors, LLC21,786$86Kunchanged2026-06-30

Pioneer Power Solutions' latest quarter

Pioneer Power Solutions, Q2 2026: revenue $4.7M (-28% year over year), operating margin -42.5%, net loss $2.1M, operating cash flow −$2.7M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most PPSI stock?

By the latest 13F filings: Vanguard Group ($1.1M); Vanguard Capital Management LLC ($771K); Spectrum Investment Advisors ($542K); Acadian Asset Management LLC ($503K); Renaissance Technologies LLC ($498K).

What is the short interest in PPSI?

51,494 shares were sold short at the 2026-10-15 settlement, 1.09% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.