AQR CAPITAL MANAGEMENT LLC

Position in MLAB — Mesa Laboratories Inc /Co/

CIK 1167557 Greenwich, CT

Position in MLAB

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

Position Value

$20,282,211

+$5,201,123 QoQ

Shares Held

203,739

+19.5% QoQ

Ownership

3.64%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

of 158 holders

Holding Since

Jun 2023

13 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

AQR CAPITAL MANAGEMENT LLC holds $1,194,346,818 across 18 Scientific & Technical Instruments names. MLAB ranks #8 (1.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	KEYS	Keysight Technologies, Inc.	989,950	$346,551,790
2	MKSI	Mks Inc	638,333	$283,930,513
3	GRMN	Garmin Ltd	914,637	$217,262,868
4	CGNX	Cognex Corp	1,458,087	$105,594,657
5	COHR	Coherent Corp.	137,729	$54,329,954
6	ST	Sensata Technologies Holding plc	993,109	$47,411,020
7	FTV	Fortive Corp	576,387	$35,211,478
8	MLAB	Mesa Laboratories Inc /Co/ This page	203,739	$20,282,211

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$20,282,211	203,739	+19.5%	Shares	Other	2026-08-14
2026-03-31	$15,081,088	170,562	+143.2%	Shares	Other	2026-05-15
2025-12-31	$5,505,831	70,138	+114.9%	Shares	Other	2026-02-17
2025-09-30	$2,187,138	32,639	+322.4%	Shares	Other	2025-11-14
2025-06-30	$728,037	7,727	-5.3%	Shares	Other	2025-08-14
2025-03-31	$967,789	8,156	-25.1%	Shares	Other	2025-05-15
2024-12-31	$1,435,404	10,885	-4.8%	Shares	Defined	2025-02-14
2024-09-30	$1,484,558	11,432	-36.5%	Shares	Other	2024-11-14
2024-06-30	$1,562,119	18,003	-16.8%	Shares	Defined	2024-08-14
2024-03-31	$2,373,898	21,634	+21.6%	Shares	Defined	2024-05-15
2023-12-31	$1,864,067	17,792	+20.9%	Shares	Defined	2024-02-14
2023-09-30	$1,545,999	14,714	+80.1%	Shares	Defined	2023-11-14
2023-06-30	$1,049,588	8,168	—	Shares	Defined	2023-08-14
No filing history on record for this holder in this stock.