Event-Driven Stocks

WESTPORT FUEL SYSTEMS INC.

WPRTNasdaq

Industrials · Engines & Turbines · SEC filings ↗ · Compare ⊕

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Financials

SEC XBRL · annual

No structured XBRL financials available (common for pre-2009 filers, foreign issuers, or companies that never reported as a US public company).

5%+ owners

SEC Schedule 13D / 13G · last 3 yrs

Holders who disclosed a 5%+ stake. 13D signals intent to influence or control; 13G is a passive holding. Latest filing per holder — open it for the exact stake.

Insider transactions

SEC Form 4 · most recent
2 acquisitions2 disposals2 open-market buy(s)net −241,405 shares · last 4
InsiderDateTypeSharesPrice
Douglas Kevin10% ownerFeb 6, 2013Gift285,703$0.00
Douglas Kevin10% ownerDec 31, 2012Gift52,902$0.00
Douglas Kevin10% ownerJul 27, 2012Buy40,000$38.57
Douglas Kevin10% ownerJul 23, 2012Buy57,200$38.23

Headline trade per Form 4 (officers, directors, 10%+ owners). Buy/sell read from the filing's structured data — blank where a field isn't cleanly tagged.

Short interest

FINRA · bi-monthly
SettlementShares shortDays to coverΔ vs prior
May 15, 2026732,40624.7-2.4%
Apr 30, 2026750,47213.1-11.9%
Apr 15, 2026852,31024.3-3.2%
Mar 31, 2026880,61524.3-7.0%
Mar 13, 2026946,91930.5-1.2%

Shares sold short as reported to FINRA. Days-to-cover = short shares ÷ average daily volume — higher means more potential squeeze pressure.

Recent SEC filings

All filings ↗

Event-driven situations (1)

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