Mariner’s Mesa Laboratories MLAB Stock Holding History

Mariner’s Portfolio MLAB Stock Details MLAB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.43M	Buy	14,407 +5,441	+61%	+$548K	﹤0.01%	1696
2026 Q1	$793K	Buy	8,966 +5,653	+171%	+$487K	﹤0.01%	2134
2025 Q4	$260K	Buy	+3,313	New	+$252K	﹤0.01%	2966
2023 Q2	–	Sell	-1,203	Closed	-$210K	–	2889
2023 Q1	$210K	Buy	+1,203	New	+$216K	﹤0.01%	2384

Other funds holding MLAB

LPP

Long Path Partners Stamford, Connecticut $235M AUM 22.51% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

RIM

Ranger Investment Management Dallas, Texas $1.58B AUM 51% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Diamond Hill Capital Management Columbus, Ohio $12.5B AUM 7.49% 1-Year Est. Return

Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Mariner's MLAB Position: Q2 2026 in Review

Mariner increased its Mesa Laboratories (MLAB) stake by 61% in Q2 2026, buying an estimated $548K and bringing the position to 14,407 shares worth $1.43M. The position accounts for ﹤0.01% of the portfolio, ranked #1696.

Mariner first reported a position in MLAB in Q1 2023 and has held it in 4 quarters since. 160 funds tracked by Wall St. Rank hold MLAB as of Q2 2026.

Mariner held 14,407 shares of Mesa Laboratories worth $1.43M as of Q2 2026.
Mariner bought 5,441 Mesa Laboratories shares in Q2 2026, an estimated $548K.
Mesa Laboratories made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #1696 holding.
Mariner first reported a position in Mesa Laboratories in Q1 2023 and has held it in 4 quarters since.
160 funds tracked by Wall St. Rank held Mesa Laboratories as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.