Mariner
ACGL icon

Mariner’s Arch Capital ACGL Stock Holding History

Mariner’s Portfolio ACGL Stock Details ACGL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$20.4M Buy
212,506
+22,283
+12% +$2.13M 0.02% 465
2025
Q4 		$18.2M Buy
190,223
+53,327
+39% +$4.88M 0.02% 473
2025
Q3 		$12.4M Sell
136,896
-471,866
-78% -$42.3M 0.02% 553
2025
Q2 		$55.4M Buy
608,762
+6,781
+1% +$626K 0.08% 220
2025
Q1 		$57.9M Buy
601,981
+2,214
+0.4% +$204K 0.1% 188
2024
Q4 		$55.4M Buy
599,767
+194,282
+48% +$19.6M 0.09% 193
2024
Q3 		$45.4M Buy
405,485
+432
+0.1% +$44.9K 0.08% 220
2024
Q2 		$40.9M Buy
405,053
+362,468
+851% +$35.2M 0.08% 220
2024
Q1 		$3.94M Buy
42,585
+8,648
+25% +$731K 0.01% 816
2023
Q4 		$2.52M Buy
33,937
+45
+0.1% +$3.68K 0.01% 951
2023
Q3 		$2.7M Buy
33,892
+900
+3% +$70K 0.01% 851
2023
Q2 		$2.47M Buy
32,992
+11,763
+55% +$851K 0.01% 893
2023
Q1 		$1.44M Buy
21,229
+4,427
+26% +$291K ﹤0.01% 1103
2022
Q4 		$1.05M Buy
16,802
+4,191
+33% +$234K ﹤0.01% 1213
2022
Q3 		$574K Buy
12,611
+1,773
+16% +$80.1K ﹤0.01% 1338
2022
Q2 		$493K Buy
10,838
+739
+7% +$34.3K ﹤0.01% 1129
2022
Q1 		$489K Buy
+10,099
New +$470K ﹤0.01% 1155
2016
Q3 		– Sell
-9,336
Closed -$224K – 804
2016
Q2 		$224K Buy
9,336
+135
+1% +$3.19K 0.01% 472
2016
Q1 		$218K Buy
+9,201
New +$210K 0.01% 457

Other funds holding ACGL

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
BAMCO Inc
BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
WCM Investment Management
WCM Investment Management Laguna Beach, California $43.8B AUM 42.28% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

Mariner's ACGL Position: Q1 2026 in Review

Mariner increased its Arch Capital (ACGL) stake by 12% in Q1 2026, buying an estimated $2.13M and bringing the position to 212,506 shares worth $20.4M. The position accounts for 0.02% of the portfolio, ranked #465.

Mariner first reported a position in ACGL in Q1 2016 and has held it in 19 quarters since. The position peaked at $57.9M in Q1 2025. 909 funds tracked by Wall St. Rank hold ACGL as of Q1 2026.

  • Mariner held 212,506 shares of Arch Capital worth $20.4M as of Q1 2026.
  • Mariner bought 22,283 Arch Capital shares in Q1 2026, an estimated $2.13M.
  • Arch Capital made up 0.02% of Mariner's portfolio in Q1 2026, its #465 holding.
  • Mariner first reported a position in Arch Capital in Q1 2016 and has held it in 19 quarters since.
  • Mariner's Arch Capital position peaked at $57.9M in Q1 2025.
  • 909 funds tracked by Wall St. Rank held Arch Capital as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.