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Westport Fuel Systems Inc. (WPRT) institutional ownership

Latest close $1.89 Jul 21, 2026
Market cap$35M 52-week range SectorConsumer Cyclical
Funds holding · Q1 2026
32
reported WPRT position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
13 buyers · 19 sellers

Westport Fuel Systems Inc. (WPRT) price and institutional activity

Dates

Q1 2026

$0 bought by 13 investors
Royce & Associates LPCitadel Advisors LLC +11 more
$0 sold by 19 investors
Grace & White IncBucket List Wealth Management, LLC +17 more
Bought Sold Totals per quarter; hover a bar for the names.

Westport Fuel Systems Inc. (WPRT) institutional activity · 32

Investor Type Est. change Change Δ Own Date
Royce & Associates LP · Added
Change +264K Date Q1 2026
Royce & Associates LP Added· Q1 2026 +264K Q1 2026
Grace & White Inc · Reduced
Change −153K Date Q1 2026
Grace & White Inc Reduced· Q1 2026 −153K Q1 2026
Citadel Advisors LLC Added· Q1 2026 +127K +449.6% Q1 2026
Bucket List Wealth Management, LLC · Exited
Change −22K Δ Own −100.0% Date Q1 2026
Bucket List Wealth Management, LLC Exited· Q1 2026 −22K −100.0% Q1 2026
Xtx Topco Ltd · Exited
Change −19K Δ Own −100.0% Date Q1 2026
Xtx Topco Ltd Exited· Q1 2026 −19K −100.0% Q1 2026
Baird Financial Group, Inc. · Reduced
Change −13K Date Q1 2026
Baird Financial Group, Inc. Reduced· Q1 2026 −13K Q1 2026
Jane Street Group, LLC · Reduced
Change −13K Date Q1 2026
Jane Street Group, LLC Reduced· Q1 2026 −13K Q1 2026
Centiva Capital, LP · New
Change +13K Date Q1 2026
Centiva Capital, LP New· Q1 2026 +13K Q1 2026
Hrt Financial LP · Exited
Change −10K Δ Own −100.0% Date Q1 2026
Hrt Financial LP Exited· Q1 2026 −10K −100.0% Q1 2026
Renaissance Technologies LLC Exited· Q1 2026 −10K −100.0% Q1 2026
Arkadios Wealth Advisors · Exited
Change −10K Δ Own −100.0% Date Q1 2026
Arkadios Wealth Advisors Exited· Q1 2026 −10K −100.0% Q1 2026
Simplex Trading, LLC · Exited
Change −7K Δ Own −100.0% Date Q1 2026
Simplex Trading, LLC Exited· Q1 2026 −7K −100.0% Q1 2026
Royal Bank of Canada · Reduced
Change −5K Date Q1 2026
Royal Bank of Canada Reduced· Q1 2026 −5K Q1 2026
Citigroup Inc · Exited
Change −3K Δ Own −100.0% Date Q1 2026
Citigroup Inc Exited· Q1 2026 −3K −100.0% Q1 2026
Morgan Stanley · Added
Change +2K Date Q1 2026
Morgan Stanley Added· Q1 2026 +2K Q1 2026
Data through Q1 2026 · filed May 15, 2026
15 of 32

Famous investor activity in Westport Fuel Systems Inc. (WPRT)

Westport Fuel Systems Inc. (WPRT) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Douglas Kevin 18.2M
% of shares outstanding 10.8% Filing date Jun 9, 2021
Douglas Kevin 18.2M 10.8% Jun 9, 2021
Cvi Investments, Inc. 1.9M
% of shares outstanding 9.9% Filing date Jun 29, 2026
Cvi Investments, Inc. 1.9M 9.9% Jun 29, 2026
Grace & White, Inc. 1.2M
% of shares outstanding 6.7% Filing date Jan 27, 2026
Grace & White, Inc. 1.2M 6.7% Jan 27, 2026
Alex Cushner 1.1M
% of shares outstanding 6.7% Filing date Feb 14, 2025
Alex Cushner 1.1M 6.7% Feb 14, 2025
Royce & Associates LP 1.1M
% of shares outstanding 5.1% Filing date Jul 22, 2026
Royce & Associates LP 1.1M 5.1% Jul 22, 2026
Robert W. Baird & Co. Inc 177K
% of shares outstanding 1.0% Filing date Feb 6, 2026
Robert W. Baird & Co. Inc 177K 1.0% Feb 6, 2026
6 of 6

Westport Fuel Systems Inc. (WPRT) ownership FAQ

Who owns WPRT?

32 reporting institutions disclosed WPRT position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.