Mariner
AMG icon

Mariner’s Affiliated Managers Group AMG Stock Holding History

Mariner’s Portfolio AMG Stock Details AMG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$2.94M Buy
8,677
+245
+3% +$76K ﹤0.01% 1281
2026
Q1 		$2.33M Buy
8,432
+18
+0.2% +$5.42K ﹤0.01% 1447
2025
Q4 		$2.43M Buy
8,414
+3,490
+71% +$902K ﹤0.01% 1387
2025
Q3 		$1.17M Buy
4,924
+111
+2% +$24.5K ﹤0.01% 1783
2025
Q2 		$947K Buy
4,813
+462
+11% +$80.2K ﹤0.01% 1835
2025
Q1 		$731K Sell
4,351
-273
-6% -$47.6K ﹤0.01% 1904
2024
Q4 		$855K Buy
4,624
+270
+6% +$50.4K ﹤0.01% 1764
2024
Q3 		$774K Buy
4,354
+25
+0.6% +$4.25K ﹤0.01% 1806
2024
Q2 		$676K Buy
4,329
+88
+2% +$14K ﹤0.01% 1801
2024
Q1 		$710K Buy
4,241
+210
+5% +$32.6K ﹤0.01% 1758
2023
Q4 		$610K Buy
4,031
+1,474
+58% +$198K ﹤0.01% 1810
2023
Q3 		$333K Sell
2,557
-110
-4% -$15.4K ﹤0.01% 2071
2023
Q2 		$400K Buy
2,667
+270
+11% +$38.6K ﹤0.01% 1906
2023
Q1 		$341K Buy
2,397
+233
+11% +$36.8K ﹤0.01% 1964
2022
Q4 		$343K Buy
2,164
+103
+5% +$14.6K ﹤0.01% 1915
2022
Q3 		$231K Buy
+2,061
New +$259K ﹤0.01% 1959

Other funds holding AMG

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
AI
Ariel Investments Chicago, Illinois $10B AUM 42.59% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Mariner's AMG Position: Q2 2026 in Review

Mariner increased its Affiliated Managers Group (AMG) stake by 2.9% in Q2 2026, buying an estimated $76K and bringing the position to 8,677 shares worth $2.94M. The position accounts for ﹤0.01% of the portfolio, ranked #1281.

Mariner first reported a position in AMG in Q3 2022 and has held it in 16 quarters since. 566 funds tracked by Wall St. Rank hold AMG as of Q2 2026.

  • Mariner held 8,677 shares of Affiliated Managers Group worth $2.94M as of Q2 2026.
  • Mariner bought 245 Affiliated Managers Group shares in Q2 2026, an estimated $76K.
  • Affiliated Managers Group made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #1281 holding.
  • Mariner first reported a position in Affiliated Managers Group in Q3 2022 and has held it in 16 quarters since.
  • 566 funds tracked by Wall St. Rank held Affiliated Managers Group as of Q2 2026.

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