13F

Stock

Westport Fuel Systems Inc.

WPRT · held by 41 managers

Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025

Reported value

$3.86M

Holders

41

+6 new · −10 exited

Holders’ est. mark

$426.7K

Price effect on 35 books still in the name

Largest holder

$1.83M

GRACE & WHITE INC /NY

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q3 2025Q4 2025Q1 2026

Who holds it

Notable only
InvestorSharesValueEst. markChange
GRACE & WHITE INC /NY1.01M$1.83M$251.7KAdded$10.9K
ROYCE & ASSOCIATES LP491.9K$895.3K$56.9KAdded$538.1K
US BANCORP \DE\166.8K$303.6K$41.7KAdded$41.7K
Baird Financial Group, Inc.163.9K$298.3K$41KAdded$20K
Citadel154.9K$281.9K$7.05KAdded$237.7K
GOLDMAN SACHS GROUP INC38.2K$69.6K$9.56KAdded$8.76K
TD Waterhouse Canada Inc.18.1K$32.5K$3.81KAdded$3.85K
UBS Group AG16.4K$29.9K$4.1KAdded$3.95K
JANE STREET GROUP, LLC15.2K$27.7K$3.8KCut−$17.2K
Centiva Capital, LP13K$23.7K—New
LPL Financial LLC10K$18.2K$2.51KAdded$2.43K
ROYAL BANK OF CANADA7.86K$14K$1.73KCut−$6K
MORGAN STANLEY4.06K$7.39K$531Added$4.06K
Tower Research Capital LLC (TRC)3.69K$6.71K$897Added$1.08K
Federation des caisses Desjardins du Quebec1.67K$2.92K$274Added$274
WELLS FARGO & COMPANY/MN1.44K$2.58K$295Added$267
Allworth Financial LP1.02K$1.87K$256Added$256
SWAN Capital LLC1K$1.82K$250Added$250
GROUP ONE TRADING LLC897$1.63K—New
JONES FINANCIAL COMPANIES LLLP710$1.32K—New
OSAIC HOLDINGS, INC.483$878$89Added$327
ORG Wealth Partners, LLC400$728—New
HighMark Wealth Management LLC350$637$88Added$88
COUNTRY TRUST BANK220$400$55Added$55
DEUTSCHE BANK AG\184$335$46Added$46
FIFTH THIRD BANCORP170$309$42Added$42
THOMPSON INVESTMENT MANAGEMENT, INC.125$227$31Added$31
NATIONAL BANK OF CANADA /FI/124$219—New
Gen-Wealth Partners Inc86$157$22Added$22
Rockefeller Capital Management L.P.85$155$8Added$108
CBIZ Investment Advisory Services, LLC45$82$11Added$11
SBI Securities Co., Ltd.35$64$9Added$9
MAI Capital Management33$61$9Added$9
Golden State Wealth Management, LLC30$55$8Added$8
HARBOUR INVESTMENTS, INC.27$49$7Added$7
DELTA ASSET MANAGEMENT LLC/TN15$27$3Added$3
Avalon Trust Co13$24$3Added$3
Cambridge Investment Research Advisors, Inc.11.8K$21$3Added$2
CWM, LLC11$20$20Added$20
CALDWELL SUTTER CAPITAL, INC.1$2—New
TSFG, LLC1$0$0Held

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.