Boston Partners
MLAB icon

Boston Partners’s Mesa Laboratories MLAB Stock Holding History

Boston Partners’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 		$26.4M Sell
265,149
-3,562
-1% -$359K 0.02% 352
2026
Q1 		$23.8M Buy
268,711
+55,335
+26% +$4.77M 0.02% 349
2025
Q4 		$16.8M Buy
213,376
+99,019
+87% +$7.53M 0.02% 384
2025
Q3 		$7.66M Buy
114,357
+108,936
+2,010% +$7.84M 0.01% 439
2025
Q2 		$511K Buy
5,421
+758
+16% +$83.2K ﹤0.01% 652
2025
Q1 		$553K Buy
4,663
+36
+0.8% +$4.91K ﹤0.01% 620
2024
Q4 		$610K Sell
4,627
-3,726
-45% -$457K ﹤0.01% 614
2024
Q3 		$1.08M Buy
8,353
+1,628
+24% +$191K ﹤0.01% 595
2024
Q2 		$584K Buy
+6,725
New +$704K ﹤0.01% 648

Other funds holding MLAB

LPP
Long Path Partners Stamford, Connecticut $235M AUM 22.51% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Diamond Hill Capital Management
Diamond Hill Capital Management Columbus, Ohio $12.5B AUM 7.49% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Russell Investments Group
Russell Investments Group London, United Kingdom $114B AUM 41.71% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
HIM
Herald Investment Management London, United Kingdom $737M AUM 158.15% 1-Year Est. Return
BP
BBR Partners New York $2.13B AUM 21.87% 1-Year Est. Return

Boston Partners's MLAB Position: Q2 2026 in Review

Boston Partners reduced its Mesa Laboratories (MLAB) stake by 1.3% in Q2 2026, selling an estimated $359K and leaving 265,149 shares worth $26.4M. The position accounts for 0.02% of the portfolio, ranked #352.

Boston Partners first reported a position in MLAB in Q2 2024 and has held it in 9 quarters since. 66 funds tracked by Wall St. Rank hold MLAB as of Q2 2026.

  • Boston Partners held 265,149 shares of Mesa Laboratories worth $26.4M as of Q2 2026.
  • Boston Partners sold 3,562 Mesa Laboratories shares in Q2 2026, an estimated $359K.
  • Mesa Laboratories made up 0.02% of Boston Partners's portfolio in Q2 2026, its #352 holding.
  • Boston Partners first reported a position in Mesa Laboratories in Q2 2024 and has held it in 9 quarters since.
  • 66 funds tracked by Wall St. Rank held Mesa Laboratories as of Q2 2026.

Based on Boston Partners's 13F filing for Q2 2026, filed 4 Aug 2026.