Mariner
COO icon

Mariner’s Cooper Companies COO Stock Holding History

Mariner’s Portfolio COO Stock Details COO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$11.1M Sell
155,482
-187,706
-55% -$12.3M 0.01% 682
2026
Q1 		$24.5M Buy
343,188
+119,828
+54% +$9.48M 0.03% 415
2025
Q4 		$18.3M Buy
223,360
+42,740
+24% +$3.2M 0.02% 471
2025
Q3 		$12.4M Buy
180,620
+5,268
+3% +$373K 0.02% 554
2025
Q2 		$12.5M Buy
175,352
+148,622
+556% +$11.4M 0.02% 532
2025
Q1 		$2.25M Sell
26,730
-7,412
-22% -$664K ﹤0.01% 1175
2024
Q4 		$3.14M Buy
34,142
+3,220
+10% +$328K 0.01% 991
2024
Q3 		$3.41M Buy
30,922
+1,086
+4% +$106K 0.01% 927
2024
Q2 		$2.6M Buy
29,836
+3,419
+13% +$319K 0.01% 985
2024
Q1 		$2.68M Buy
26,417
+2,049
+8% +$198K 0.01% 970
2023
Q4 		$2.31M Buy
24,368
+5,020
+26% +$421K 0.01% 989
2023
Q3 		$1.54M Sell
19,348
-816
-4% -$75.2K ﹤0.01% 1101
2023
Q2 		$1.93M Buy
20,164
+1,656
+9% +$155K 0.01% 992
2023
Q1 		$1.73M Buy
18,508
+1,824
+11% +$157K 0.01% 1020
2022
Q4 		$1.38M Buy
16,684
+2,132
+15% +$157K ﹤0.01% 1092
2022
Q3 		$960K Buy
+14,552
New +$1.11M ﹤0.01% 1073

Other funds holding COO

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
BW
Browning West Los Angeles, California $1.69B AUM 9.16% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Kayne Anderson Rudnick Investment Management
Kayne Anderson Rudnick Investment Management Los Angeles, California $32.2B AUM 10.98% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return

Mariner's COO Position: Q2 2026 in Review

Mariner reduced its Cooper Companies (COO) stake by 55% in Q2 2026, selling an estimated $12.3M and leaving 155,482 shares worth $11.1M. The position accounts for 0.01% of the portfolio, ranked #682.

Mariner first reported a position in COO in Q3 2022 and has held it in 16 quarters since. The position peaked at $24.5M in Q1 2026. 677 funds tracked by Wall St. Rank hold COO as of Q2 2026.

  • Mariner held 155,482 shares of Cooper Companies worth $11.1M as of Q2 2026.
  • Mariner sold 187,706 Cooper Companies shares in Q2 2026, an estimated $12.3M.
  • Cooper Companies made up 0.01% of Mariner's portfolio in Q2 2026, its #682 holding.
  • Mariner first reported a position in Cooper Companies in Q3 2022 and has held it in 16 quarters since.
  • Mariner's Cooper Companies position peaked at $24.5M in Q1 2026.
  • 677 funds tracked by Wall St. Rank held Cooper Companies as of Q2 2026.

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