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ISSUER PROFILE · CIK 0001370416

Westport Fuel Systems Inc.WPRT

7 13D/G filings 4 distinct filers 0 insider transactions (365d)

Cross-Reference Snapshot

Activist filings
7
2 SCHEDULE 13G · 5 SC
Distinct filers
4
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
9.76
as of 2026-10-15

13D/G Filings Timeline · 7 total

FiledFormFilerStakeSharesIntent
2026-07-22 SCHEDULE 13G ROYCE & ASSOCIATES LP — — view →
2026-06-29 SCHEDULE 13G CVI Investments, Inc. — — view →
2021-06-09 SC DOUGLAS KEVIN — — view →
2021-03-30 SC DOUGLAS KEVIN — — view →
2020-12-10 SC Yu Peter — — view →
2020-05-04 SC DOUGLAS KEVIN — — view →
2018-01-12 SC DOUGLAS KEVIN — — view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-10-15 443,421 9.76 +1.2%
2026-09-30 438,190 9.08 -8.2%
2026-09-15 477,067 6.88 -15.2%
2026-08-14 713,004 8.01 -13.2%
2026-07-31 821,482 14.40 +2.8%
2026-07-15 798,948 8.37 -7.7%
2026-06-30 865,843 1.00 +20.1%
2026-06-15 720,717 32.64 -0.5%
2026-05-29 724,004 28.03 -1.1%
2026-05-15 732,406 24.73 -2.4%
2026-04-30 750,472 13.13 -11.9%
2026-04-15 852,310 24.34 -3.2%

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