WESTPORT FUEL SYSTEMS INC (WPRT) Institutional Ownership Changes & 13F Activity

WESTPORT FUEL SYSTEMS INC (WPRT). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Heights Capital Management, Inc, Royce & Associates Lp, Grace & White Inc, Us Bancorp \De\, and Citadel Advisors Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Security National Bank Of Sioux City IowaBuy+124—124$280.00Q2 2026Sep 18, 2026
Citadel Advisors LlcSell-64,946-41.9%89,959$203.31KQ2 2026Sep 02, 2026
Heights Capital Management, IncBuy+1,325,121—1,325,121$2.99MQ2 2026Aug 14, 2026
Royce & Associates LpBuy+639,577+130.0%1,131,479$2.56MQ2 2026Aug 14, 2026
Susquehanna International Group, LlpBuy+18,017—18,017$40.72KQ2 2026Aug 14, 2026
Hrt Financial LpBuy+13,318—13,318$30.00KQ2 2026Aug 14, 2026
Goldman Sachs Group IncSell-6,598-17.3%31,647$71.52KQ2 2026Aug 14, 2026
Royal Bank Of CanadaSell-1,880-23.9%5,978$13.00KQ2 2026Aug 14, 2026
Federation Des Caisses Desjardins Du QuebecSell-1,325-79.2%348$748.00Q2 2026Aug 14, 2026
Jane Street Group, LlcSell-1,260-8.3%13,933$31.49KQ2 2026Aug 14, 2026
Group One Trading LlcBuy+1,100+122.6%1,997$4.51KQ2 2026Aug 14, 2026
Wells Fargo & Company/MnBuy+295+20.5%1,736$3.87KQ2 2026Aug 14, 2026
Osaic Holdings, Inc.Buy+100+20.7%583$1.32KQ2 2026Aug 14, 2026
Ubs Group AgBuy+2,898+17.7%19,316$43.65KQ2 2026Aug 13, 2026
Morgan StanleySell-288-7.1%3,773$8.53KQ2 2026Aug 13, 2026
Rockefeller Capital Management L.P.Sell-55-64.7%30$68.00Q2 2026Aug 13, 2026
Us Bancorp \De\Sell-93,721-56.2%73,108$165.22KQ2 2026Aug 12, 2026
Baird Financial Group, Inc.Sell-23,874-14.6%140,024$316.45KQ2 2026Aug 12, 2026
Simplex Trading, LlcBuy+1,604—1,604$3.63KQ2 2026Aug 12, 2026
Brown Brothers Harriman & CoBuy+10—10$23.00Q2 2026Aug 12, 2026
Tower Research Capital Llc (Trc)Sell-1,100-29.9%2,585$5.84KQ2 2026Aug 11, 2026
Lpl Financial LlcBuy+1,254+12.5%11,280$25.49KQ2 2026Aug 07, 2026
Caitong International Asset Management Co., LtdBuy+2—2$5.00Q2 2026Aug 05, 2026
Cambridge Investment Research Advisors, Inc.Sell-50-0.4%11,731$27.00Q2 2026Jul 30, 2026
Grace & White IncSell-292,602-29.1%714,106$1.61MQ2 2026Jul 17, 2026
Thompson Investment Management, Inc.Sell-65-52.0%60$136.00Q2 2026Jul 13, 2026
National Bank Of CanadaSell-124-100.0%0$0.00Q2 2026May 15, 2026
Mai Capital ManagementSell-33-100.0%0$0.00Q2 2026May 15, 2026
Centiva Capital, LpSell-13,012-100.0%0$0.00Q2 2026May 14, 2026
Cwm, LlcSell-11-100.0%0$0.00Q2 2026May 14, 2026
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Frequently asked questions about WPRT activity

  • Which institutional owners are buying WPRT?

    Institutional owners buying WPRT include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in WPRT activity?

    "Buy" means an investor increased their reported position in WPRT compared to the prior reporting period. This reflects growing exposure to WESTPORT FUEL SYSTEMS INC (WPRT) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in WPRT increasing?

    Institutional interest in WPRT can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.