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GAMCO Investors’s Mesa Laboratories MLAB Stock Holding History

GAMCO Investors’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 		$830K Buy
8,340
+506
+6% +$50.9K 0.01% 642
2026
Q1 		$693K Buy
7,834
+80
+1% +$6.89K 0.01% 699
2025
Q4 		$609K Sell
7,754
-458
-6% -$34.8K 0.01% 760
2025
Q3 		$550K Buy
8,212
+4,282
+109% +$308K 0.01% 788
2025
Q2 		$370K Buy
+3,930
New +$431K ﹤0.01% 893

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
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
AQR Capital Management
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
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Diamond Hill Capital Management
Diamond Hill Capital Management Columbus, Ohio $12.5B AUM 7.49% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

GAMCO Investors's MLAB Position: Q2 2026 in Review

GAMCO Investors increased its Mesa Laboratories (MLAB) stake by 6.5% in Q2 2026, buying an estimated $50.9K and bringing the position to 8,340 shares worth $830K. The position accounts for 0.01% of the portfolio, ranked #642.

GAMCO Investors first reported a position in MLAB in Q2 2025 and has held it in 5 quarters since. 159 funds tracked by Wall St. Rank hold MLAB as of Q2 2026.

  • GAMCO Investors held 8,340 shares of Mesa Laboratories worth $830K as of Q2 2026.
  • GAMCO Investors bought 506 Mesa Laboratories shares in Q2 2026, an estimated $50.9K.
  • Mesa Laboratories made up 0.01% of GAMCO Investors's portfolio in Q2 2026, its #642 holding.
  • GAMCO Investors first reported a position in Mesa Laboratories in Q2 2025 and has held it in 5 quarters since.
  • 159 funds tracked by Wall St. Rank held Mesa Laboratories as of Q2 2026.

Based on GAMCO Investors's 13F filing for Q2 2026, filed 12 Aug 2026.