Boston Partners
ACGL icon

Boston Partners’s Arch Capital ACGL Stock Holding History

Boston Partners’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
Q2 		$209M Buy
2,156,551
+63,734
+3% +$6.01M 0.19% 158
2026
Q1 		$201M Buy
+2,092,817
New +$200M 0.21% 154
2023
Q4 		– Sell
-1,690,400
Closed -$135M – 706
2023
Q3 		$135M Buy
1,690,400
+558
+0% +$43.4K 0.19% 166
2023
Q2 		$126M Sell
1,689,842
-349,637
-17% -$25.3M 0.17% 178
2023
Q1 		$138M Buy
2,039,479
+10,444
+0.5% +$686K 0.19% 158
2022
Q4 		$127M Buy
2,029,035
+609,547
+43% +$34M 0.17% 164
2022
Q3 		$64.7M Buy
+1,419,488
New +$64.1M 0.09% 203
2014
Q2 		– Sell
-1,655,328
Closed -$31.7M – 715
2014
Q1 		$31.7M Sell
1,655,328
-158,679
-9% -$2.94M 0.06% 234
2013
Q4 		$36.1M Buy
1,814,007
+413,781
+30% +$7.94M 0.07% 212
2013
Q3 		$25.3M Buy
1,400,226
+345,087
+33% +$6.17M 0.06% 236
2013
Q2 		$18.1M Buy
+1,055,139
New +$18.4M 0.05% 252

Other funds holding ACGL

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
WCM Investment Management
WCM Investment Management Laguna Beach, California $55.2B AUM 57.07% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Boston Partners's ACGL Position: Q2 2026 in Review

Boston Partners increased its Arch Capital (ACGL) stake by 3% in Q2 2026, buying an estimated $6.01M and bringing the position to 2,156,551 shares worth $209M. The position accounts for 0.19% of the portfolio, ranked #158.

Boston Partners first reported a position in ACGL in Q2 2013 and has held it in 11 quarters since. 907 funds tracked by Wall St. Rank hold ACGL as of Q2 2026.

  • Boston Partners held 2,156,551 shares of Arch Capital worth $209M as of Q2 2026.
  • Boston Partners bought 63,734 Arch Capital shares in Q2 2026, an estimated $6.01M.
  • Arch Capital made up 0.19% of Boston Partners's portfolio in Q2 2026, its #158 holding.
  • Boston Partners first reported a position in Arch Capital in Q2 2013 and has held it in 11 quarters since.
  • 907 funds tracked by Wall St. Rank held Arch Capital as of Q2 2026.

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