13F

Stock

Westport Fuel Systems Inc.

WPRT · held by 47 managers

Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025

Reported value

$3.09M

Holders

47

+0 new · −0 exited

Holders’ est. mark

−$3.29K

Price effect on 3 books still in the name

Largest holder

$1.82M

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 /NY1.16M$1.82M—Held
ROYCE & ASSOCIATES LP227.5K$357.2K—Held
Baird Financial Group, Inc.177.3K$278.3K—Held
US BANCORP \DE\166.8K$261.9K—Held
GOLDMAN SACHS GROUP INC38.8K$60.8K—Held
JANE STREET GROUP, LLC28.5K$44.8K—Held
Citadel28.2K$44.3K—Held
Bucket List Wealth Management, LLC22.2K$34.9K—Held
XTX Topco Ltd19.5K$30.6K—Held
TD Waterhouse Canada Inc.18.1K$28.6K—Held
UBS Group AG16.5K$25.9K—Held
ROYAL BANK OF CANADA12.8K$20K—Held
LPL Financial LLC10.1K$15.8K—Held
Renaissance Technologies10K$15.7K—Held
Arkadios Wealth Advisors10K$15.7K—Held
SIMPLEX TRADING, LLC6.71K$10.5K—Held
Tower Research Capital LLC (TRC)3.58K$5.63K—Held
CITIGROUP INC2.55K$4.04K—Held
MORGAN STANLEY2.12K$3.33K−$1.49KCut−$6.58K
Federation des caisses Desjardins du Quebec1.67K$2.65K—Held
BANK OF AMERICA CORP /DE/1.56K$2.45K−$1.09KCut−$1.09K
WELLS FARGO & COMPANY/MN1.46K$2.31K—Held
Allworth Financial LP1.02K$1.61K−$717Cut−$717
SWAN Capital LLC1K$1.57K—Held
ORG Partners LLC400$628—Held
Disciplined Equity Management, Inc.300$618—Held
OSAIC HOLDINGS, INC.352$551—Held
HighMark Wealth Management LLC350$549—Held
COUNTRY TRUST BANK220$345—Held
DEUTSCHE BANK AG\184$289—Held
FIFTH THIRD BANCORP170$267—Held
Planning Project LLC150$236—Held
THOMPSON INVESTMENT MANAGEMENT, INC.125$196—Held
Gen-Wealth Partners Inc86$135—Held
CBIZ Investment Advisory Services, LLC45$71—Held
SBI Securities Co., Ltd.35$55—Held
MAI Capital Management33$52—Held
Golden State Wealth Management, LLC30$47—Held
Rockefeller Capital Management L.P.30$47—Held
HARBOUR INVESTMENTS, INC.27$42—Held
North Star Investment Management Corp.20$31—Held
DELTA ASSET MANAGEMENT LLC/TN15$24—Held
Avalon Trust Co13$21—Held
Cambridge Investment Research Advisors, Inc.12.1K$19—Held
HRT FINANCIAL LP10.1K$15—Held
CWM, LLC11$0—Held
TSFG, LLC1$0—Held

Positions as of Q4 2025. 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.