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ISSUER PROFILE · CIK 0001370416

WESTPORT FUEL SYSTEMS INC.WPRT

1 13D/G filings 1 distinct filers 0 insider transactions (365d)

Cross-Reference Snapshot

Activist filings
1
1 SC
Distinct filers
1
single filer
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
24.31
as of 2026-03-31

13D/G Filings Timeline · 1 total

FiledFormFilerStakeSharesIntent
2018-01-12 SC DOUGLAS KEVIN view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-03-31 880,615 24.31 -7.0%
2026-03-13 946,919 30.49 -1.2%
2026-02-27 958,662 32.65 -1.7%
2026-02-13 975,385 15.91 -1.4%
2026-01-30 989,213 11.33 +2.0%
2026-01-15 970,207 9.83 -2.6%
2025-12-31 996,202 8.70 +14.2%
2025-12-15 872,557 10.80 +7.5%

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