Westport Fuel Systems Inc. (WPRT) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

17,332,286Shares Outstanding

191,467Shares held by institutions

$373,361Value of institutional holdings

11.43%Institutional ownership %

-5.05%Shares Changed QoQ

46No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

The institutional landscape for Westport Fuel Systems Inc. (NASDAQ:WPRT) includes 46 filers as of the latest reporting cycle ending December 2025.

Westport Fuel Systems saw its institutional ownership percentage fell to 11.4% in December 2025 from 12.9% in September 2025.
In percentage terms, this reflects as a holdings change of -5.05% quarter on quarter, and a decrease of 9.80% year over year.
A review of institutional activity for Westport Fuel Systems shows 17 of 46 filers increasing their positions, while 10 reduced their stake, and 19 remained unchanged.
This class of investors decreased its holdings in Westport Fuel Systems to 1.98Mn shares for the 13F-cycle ending December 2025, down by 105.26K shares quarter on quarter, and down 705.84K shares year over year.
The top institutional stake in Westport Fuel Systems as of December 31, 2025 belongs to GRACE & WHITE INC /NY, which owns 1.16Mn shares, or 6.69% of the company.
Among the most significant buyers of Westport Fuel Systems during December 2025 were ROYCE & ASSOCIATES LP (227.50K), GRACE & WHITE INC /NY (114.79K), JANE STREET GROUP, LLC (38.54K), XTX Topco Ltd (19.47K), HRT FINANCIAL LP (10.11K).
Leading sellers of Westport Fuel Systems stock in December 2025 included Baird Financial Group, Inc. (371.79K), ROYAL BANK OF CANADA (167.20K), CITADEL ADVISORS LLC (22.65K), MORGAN STANLEY (2.25K), Cambridge Investment Research Advisors, Inc. (500).
The top 10 institutional holders of Westport Fuel Systems for the quarter ending December 2025 included GRACE & WHITE INC /NY (1.16Mn), ROYCE & ASSOCIATES LP (227.50K), Baird Financial Group, Inc. (177.28K), US BANCORP \DE\ (166.83K), GOLDMAN SACHS GROUP INC (38.75K), JANE STREET GROUP, LLC (38.54K), CITADEL ADVISORS LLC (28.19K), XTX Topco Ltd (19.47K), TD Waterhouse Canada Inc. (18.09K), UBS Group AG (16.52K).

46 Institutional Holders

191,467 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
GRACE & WHITE INC /NY	31 Dec, 2025	1,160,087	114,787	10.98%	$1,821,337.00
ROYCE & ASSOCIATES LP	31 Dec, 2025	227,504	227,504	0.00%	$357,181.00
Baird Financial Group, Inc.	31 Dec, 2025	177,282	-371,792	-67.71%	$278,333.00
US BANCORP \DE\	31 Dec, 2025	166,829	0	0.00%	$261,922.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	38,753	7,401	23.61%	$60,842.00
JANE STREET GROUP, LLC	31 Dec, 2025	38,543	38,543	0.00%	$60,512.00
CITADEL ADVISORS LLC	31 Dec, 2025	28,186	-22,647	-44.55%	$44,252.00
XTX Topco Ltd	31 Dec, 2025	19,468	19,468	0.00%	$30,565.00
TD Waterhouse Canada Inc.	31 Dec, 2025	18,092	0	0.00%	$28,604.00
UBS Group AG	31 Dec, 2025	16,515	1,197	7.81%	$25,928.00
ROYAL BANK OF CANADA	31 Dec, 2025	12,813	-167,196	-92.88%	$20,000.00
Cambridge Investment Research Advisors, Inc.	31 Dec, 2025	12,131	-500	-3.96%	$19.00
HRT FINANCIAL LP	31 Dec, 2025	10,113	10,113	0.00%	$15.00
LPL Financial LLC	31 Dec, 2025	10,073	10,073	0.00%	$15,815.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	10,023	10,023	0.00%	$15,736.00
Arkadios Wealth Advisors	31 Dec, 2025	10,000	10,000	0.00%	$15,700.00
SIMPLEX TRADING, LLC	31 Dec, 2025	6,705	5,793	635.20%	$10,526.00
Tower Research Capital LLC (TRC)	31 Dec, 2025	3,585	2,400	202.53%	$5,628.00
CITIGROUP INC	31 Dec, 2025	2,554	1,750	217.66%	$4,043.00
MORGAN STANLEY	31 Dec, 2025	2,123	-2,246	-51.41%	$3,333.00

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