WPRT · Insider trading · 13F holders · Congress trades
Westport Fuel Systems Inc (WPRT)
Who is buying and selling WPRT: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 2
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
WPRT at a glance
- No open-market insider purchases or sales of WPRT were filed in the last 90 days.
- 2 13F filers hold WPRT among their 50 largest positions, worth $3.4M combined. The biggest bets by portfolio weight are Heights Capital Management, Inc (0.7%) and TSP Capital Management Group, LLC (0.1%). In their latest 13Fs, 1 manager opened a new position and 0 added to one.
- No member of Congress has disclosed a trade in WPRT.
WPRT insider trading
No open-market insider purchases or sales of WPRT were filed in the last 90 days.
Who owns WPRT? Hedge funds and superinvestors
2 13F filers hold WPRT among their 50 largest positions, worth $3.4M combined. The biggest bets by portfolio weight are Heights Capital Management, Inc (0.7%) and TSP Capital Management Group, LLC (0.1%). In their latest 13Fs, 1 manager opened a new position and 0 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Heights Capital Management, IncAsset manager | 0.7% | $3.0M | 1,325,121 | — | Q2 2026 |
| TSP Capital Management Group, LLCWealth manager | 0.1% | $441K | 225,000 | New | Q3 2026 |
Each manager counts with its latest 13F (Q3 2026: 1, Q2 2026: 1). Screen WPRT in the grand portfolio →
WPRT stock trades by members of Congress
No member of Congress has disclosed a trade in WPRT.
WPRT questions and answers
Are insiders buying WPRT stock?
No open-market insider purchases or sales of WPRT were filed in the last 90 days.
Which hedge funds own WPRT?
2 13F filers hold WPRT among their 50 largest positions, worth $3.4M combined. The biggest bets by portfolio weight are Heights Capital Management, Inc (0.7%) and TSP Capital Management Group, LLC (0.1%). In their latest 13Fs, 1 manager opened a new position and 0 added to one.
Has Congress traded WPRT?
No member of Congress has disclosed a trade in WPRT.
Who is the largest holder of WPRT?
Among 13F filers, Heights Capital Management, Inc reports the largest WPRT position, $3.0M (1,325,121 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Heights Capital Management, Inc's: 0.7% of its portfolio.
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