Westport Fuel Systems Inc.

WPRTNASDAQConsumer Cyclical● Active

$1.86

$-0.04(-1.85%)

Market Cap$32356065

P/E Ratio—

52W High$4.15

52W Low$1.54

Avg Volume35K

Open$1.96

Beta2.12

Overview

Westport Fuel Systems Inc. (WPRT) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · WPRT · as of Jun 8, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

12 Months

Buy/Sell ratio

0.00

Buy/Sell (by trades)

Overall sentiment

NEUTRAL

↑ Buy 0%Active transactions only · RSU vesting excluded100% Sell ↓

Westport Fuel Systems Inc. insiders have shown mixed buying and selling activity over the past 12 Months.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 8, 2026

WPRT insider buying and selling by quarter

WPRT insider selling · WPRT insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

6.6M3.3M0

2012 Q3

2012 Q4

2013 Q1

2015 Q2

2016 Q2

2017 Q2

2017 Q3

2020 Q2

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 8, 2026

Recent insider transactions

WPRT executive sell shares · WPRT board member insider trading · WPRT insider trading SEC filing

Showing 75 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Jul 19, 2017	DOUGLAS KEVIN 10 percent owner	Award	600,000	$1.50	$900K	6,829,808	Form 4
Jul 19, 2017	DOUGLAS KEVIN 10 percent owner	Award	600,000	$1.50	$900K	6,360,206	Form 4
Jul 19, 2017	DOUGLAS KEVIN 10 percent owner	Award	200,000	$1.50	$300K	1,915,790	Form 4
Jul 19, 2017	DOUGLAS KEVIN 10 percent owner	Award	150,000	$1.50	$225K	150,000	Form 4
Jun 1, 2016	DOUGLAS KEVIN 10 percent owner	Award	2,615,788	—	—	6,229,808	Form 4
Jun 1, 2016	DOUGLAS KEVIN 10 percent owner	Award	2,232,300	—	—	5,760,206	Form 4
Jun 1, 2016	DOUGLAS KEVIN 10 percent owner	Award	1,111,717	—	—	2,953,602	Form 4
Jun 1, 2016	DOUGLAS KEVIN 10 percent owner	Award	653,944	—	—	1,715,790	Form 4
May 11, 2015	DOUGLAS KEVIN 10 percent owner	Purchase	60,275	$6.02	$363K	3,614,020	Form 4
May 8, 2015	DOUGLAS KEVIN 10 percent owner	Purchase	39,725	$5.69	$226K	3,553,745	Form 4
May 11, 2015	DOUGLAS KEVIN 10 percent owner	Purchase	49,727	$6.02	$299K	3,527,906	Form 4
May 8, 2015	DOUGLAS KEVIN 10 percent owner	Purchase	32,773	$5.69	$186K	3,478,179	Form 4
May 11, 2015	DOUGLAS KEVIN 10 percent owner	Purchase	25,617	$6.02	$154K	1,841,885	Form 4
May 8, 2015	DOUGLAS KEVIN 10 percent owner	Purchase	16,883	$5.69	$96K	1,816,268	Form 4
May 11, 2015	DOUGLAS KEVIN 10 percent owner	Purchase	15,068	$6.02	$91K	1,061,846	Form 4
May 8, 2015	DOUGLAS KEVIN 10 percent owner	Purchase	9,932	$5.69	$57K	1,046,778	Form 4
Feb 6, 2013	DOUGLAS KEVIN 10 percent owner	Gift	285,703	—	—	0	Form 4
Dec 31, 2012	DOUGLAS KEVIN 10 percent owner	Gift	52,902	—	—	2,934,650	Form 4
Dec 31, 2012	DOUGLAS KEVIN Director	Gift	52,902	—	—	2,934,650	Form 4
Dec 31, 2012	DOUGLAS KEVIN Director	Gift	52,902	—	—	2,881,748	Form 4
Dec 31, 2012	DOUGLAS KEVIN 10 percent owner	Gift	52,902	—	—	2,881,748	Form 4
Jul 30, 2012	DOUGLAS KEVIN 10 percent owner	Purchase	33,000	$38.38	$1.27M⚡	3,445,406	Form 4
Jul 27, 2012	DOUGLAS KEVIN 10 percent owner	Purchase	33,000	$38.57	$1.27M⚡	3,412,406	Form 4
Jul 30, 2012	DOUGLAS KEVIN 10 percent owner	Purchase	40,000	$38.38	$1.54M⚡	2,987,552	Form 4
Jul 27, 2012	DOUGLAS KEVIN 10 percent owner	Purchase	40,000	$38.57	$1.54M⚡	2,947,552	Form 4

DOUGLAS KEVIN

10 percent owner

Award

Date

Jul 19

600,000

Price

$1.50

Value

$900K

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Award

Date

Jul 19

600,000

Price

$1.50

Value

$900K

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Award

Date

Jul 19

200,000

Price

$1.50

Value

$300K

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Award

Date

Jul 19

150,000

Price

$1.50

Value

$225K

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Award

Date

Jun 1

2,615,788

Price

—

Value

—

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Award

Date

Jun 1

2,232,300

Price

—

Value

—

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Award

Date

Jun 1

1,111,717

Price

—

Value

—

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Award

Date

Jun 1

653,944

Price

—

Value

—

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Purchase

Date

May 11

60,275

Price

$6.02

Value

$363K

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Purchase

Date

May 8

39,725

Price

$5.69

Value

$226K

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Purchase

Date

May 11

49,727

Price

$6.02

Value

$299K

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Purchase

Date

May 8

32,773

Price

$5.69

Value

$186K

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Purchase

Date

May 11

25,617

Price

$6.02

Value

$154K

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Purchase

Date

May 8

16,883

Price

$5.69

Value

$96K

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Purchase

Date

May 11

15,068

Price

$6.02

Value

$91K

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Purchase

Date

May 8

9,932

Price

$5.69

Value

$57K

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Gift

Date

Feb 6

285,703

Price

—

Value

—

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Gift

Date

Dec 31

52,902

Price

—

Value

—

View Form 4 on SEC.gov

DOUGLAS KEVIN

Director

Gift

Date

Dec 31

52,902

Price

—

Value

—

View Form 4 on SEC.gov

DOUGLAS KEVIN

Director

Gift

Date

Dec 31

52,902

Price

—

Value

—

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Gift

Date

Dec 31

52,902

Price

—

Value

—

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Purchase

Date

Jul 30

33,000

Price

$38.38

Value

$1.27M ⚡

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Purchase

Date

Jul 27

33,000

Price

$38.57

Value

$1.27M ⚡

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Purchase

Date

Jul 30

40,000

Price

$38.38

Value

$1.54M ⚡

View Form 4 on SEC.gov

DOUGLAS KEVIN

10 percent owner

Purchase

Date

Jul 27

40,000

Price

$38.57

Value

$1.54M ⚡

View Form 4 on SEC.gov

⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar

1 / 3

▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About WPRT insider trading

WPRT insider trades

Westport Fuel Systems Inc. (WPRT) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including WPRT. Over the past 12 months, 0 insiders have filed transactions with the SEC. WPRT insiders have been mixed buying and selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For Westport Fuel Systems Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic

acquisitionOrDisposition field:

A = Acquisition (buy) · D = Disposition (sell)

RSU vesting (M-Exempt) excluded from sentiment

Form 4SEC filing required within 2 business days of any insider transaction

10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot

Open MktDirect purchase or sale on the open market (excludes awards, options)

Ownership SEC filings Financial statements Price history Forecast & ratings Earnings

Frequently asked questions

WPRT insider trading · 5 questions

The insiders of Westport Fuel Systems Inc. (WPRT) include executives and directors such as WPRT, among others. Over the past 12 months, 0 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

WPRT board member insider tradingwho are WPRT insidersWPRT insider rosterWestport Fuel Systems Inc. executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026