Mariner
PRLB icon

Mariner’s Protolabs PRLB Stock Holding History

Mariner’s Portfolio PRLB Stock Details PRLB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$245K Sell
3,010
-2,084
-41% -$147K ﹤0.01% 2991
2026
Q1 		$290K Buy
5,094
+567
+13% +$32.9K ﹤0.01% 2910
2025
Q4 		$229K Buy
+4,527
New +$232K ﹤0.01% 3069
2016
Q2 		– Sell
-2,875
Closed -$222K – 581
2016
Q1 		$222K Buy
+2,875
New +$186K 0.01% 452

Other funds holding PRLB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
DGI
Disciplined Growth Investors Minneapolis, Minnesota $5.91B AUM 53.97% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
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
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
ACM
American Capital Management New York $2.23B AUM 28.03% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Prudential Financial
Prudential Financial Newark, New Jersey $91.8B AUM 38.24% 1-Year Est. Return

Mariner's PRLB Position: Q2 2026 in Review

Mariner reduced its Protolabs (PRLB) stake by 41% in Q2 2026, selling an estimated $147K and leaving 3,010 shares worth $245K. The position accounts for ﹤0.01% of the portfolio, ranked #2991.

Mariner first reported a position in PRLB in Q1 2016 and has held it in 4 quarters since. The position peaked at $290K in Q1 2026. 278 funds tracked by Wall St. Rank hold PRLB as of Q2 2026.

  • Mariner held 3,010 shares of Protolabs worth $245K as of Q2 2026.
  • Mariner sold 2,084 Protolabs shares in Q2 2026, an estimated $147K.
  • Protolabs made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #2991 holding.
  • Mariner first reported a position in Protolabs in Q1 2016 and has held it in 4 quarters since.
  • Mariner's Protolabs position peaked at $290K in Q1 2026.
  • 278 funds tracked by Wall St. Rank held Protolabs as of Q2 2026.

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