BRIDGEWAY CAPITAL MANAGEMENT, LLC

Position in PRLB — Proto Labs Inc

CIK 1107261 HOUSTON, TX

Position in PRLB

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$2,200,770

+$946,330 QoQ

Shares Held

27,000

+22.7% QoQ

Ownership

0.113%

of shares outstanding

% of Portfolio

0.04%

of 13F equity value

Holder Rank

#72

of 276 holders

Holding Since

Dec 2022

15 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

BRIDGEWAY CAPITAL MANAGEMENT, LLC holds $27,442,550 across 7 Metal Fabrication names. PRLB ranks #4 (8.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	RYZ	Ryerson Holding Corp	381,812	$9,396,393
2	MEC	Mayville Engineering Company, Inc.	200,980	$7,528,710
3	ATI	Ati Inc	17,700	$3,488,670
4	PRLB	Proto Labs Inc This page	27,000	$2,200,770
5	CMC	COMMERCIAL METALS Co	35,000	$2,196,250
6	TG	Tredegar Corp	194,368	$1,547,169
7	AP	Ampco Pittsburgh Corp	125,386	$1,084,588

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$2,200,770	27,000	+22.7%	Shares	Sole	2026-08-14
2026-03-31	$1,254,440	22,000	-80.7%	Shares	Sole	2026-05-15
2025-12-31	$5,760,986	113,876	+4.0%	Shares	Sole	2026-02-17
2025-09-30	$5,480,336	109,541	+5.1%	Shares	Sole	2025-11-14
2025-06-30	$4,174,850	104,267	+4.9%	Shares	Sole	2025-08-14
2025-03-31	$3,482,765	99,394	+3.1%	Shares	Sole	2025-05-15
2024-12-31	$3,766,673	96,359	+81.8%	Shares	Sole	2025-02-14
2024-09-30	$1,556,639	53,001	-46.2%	Shares	Sole	2024-11-14
2024-06-30	$3,041,336	98,457	-26.7%	Shares	Sole	2024-08-14
2024-03-31	$4,799,473	134,251	+4.6%	Shares	Sole	2024-05-15
2023-12-31	$4,998,606	128,301	+5.4%	Shares	Sole	2024-02-14
2023-09-30	$3,214,807	121,773	+33.0%	Shares	Sole	2023-11-14
2023-06-30	$3,199,783	91,527	+39.8%	Shares	Sole	2023-08-14
2023-03-31	$2,170,894	65,487	+135.6%	Shares	Sole	2023-05-15
2022-12-31	$709,734	27,800	—	Shares	Sole	2023-02-14
No filing history on record for this holder in this stock.