O'Shaughnessy Asset Management’s Affiliated Managers Group AMG Stock Holding History

O'Shaughnessy Asset Management’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	$6.59M	Buy	19,465 +6,732	+53%	+$2.09M	0.03%	482
2026 Q1	$3.52M	Buy	12,733 +3,586	+39%	+$1.08M	0.02%	642
2025 Q4	$2.64M	Buy	9,147 +1,409	+18%	+$364K	0.01%	729
2025 Q3	$1.84M	Buy	7,738 +1,870	+32%	+$412K	0.01%	859
2025 Q2	$1.15M	Buy	5,868 +434	+8%	+$75.3K	0.01%	1005
2025 Q1	$913K	Buy	5,434 +344	+7%	+$60K	0.01%	1026
2024 Q4	$941K	Buy	5,090 +1,004	+25%	+$187K	0.01%	987
2024 Q3	$776K	Buy	4,086 +553	+16%	+$93.9K	0.01%	1023
2024 Q2	$552K	Buy	3,533 +272	+8%	+$43.3K	0.01%	1090
2024 Q1	$546K	Buy	3,261 +150	+5%	+$23.3K	0.01%	1062
2023 Q4	$471K	Sell	3,111 -1,176	-27%	-$158K	0.01%	1031
2023 Q3	$559K	Buy	4,287 +338	+9%	+$47.3K	0.01%	892
2023 Q2	$592K	Sell	3,949 -57	-1%	-$8.16K	0.01%	817
2023 Q1	$571K	Buy	4,006 +2,042	+104%	+$323K	0.01%	822
2022 Q4	$311K	Buy	+1,964	New	+$278K	0.01%	958
2022 Q2	–	Sell	-3,310	Closed	-$467K	–	1253
2022 Q1	$467K	Sell	3,310 -47,555	-93%	-$6.83M	0.01%	742
2021 Q4	$8.37M	Sell	50,865 -20,368	-29%	-$3.42M	0.15%	160
2021 Q3	$10.8M	Sell	71,233 -49,928	-41%	-$8.18M	0.22%	113
2021 Q2	$18.7M	Buy	121,161 +2,982	+3%	+$476K	0.37%	76
2021 Q1	$17.6M	Buy	118,179 +30,351	+35%	+$3.97M	0.39%	75
2020 Q4	$8.93M	Buy	87,828 +87,724	+84,350%	+$7.58M	0.24%	81
2020 Q3	$7K	Buy	+104	New	+$7.27K	﹤0.01%	1419
2020 Q1	–	Sell	-3	Closed	–	–	1303
2019 Q4	$0	Buy	+3	New	+$246	﹤0.01%	1810
2015 Q1	–	Sell	-59	Closed	-$13K	–	1010
2014 Q4	$13K	Sell	59 -39	-40%	-$7.75K	﹤0.01%	766
2014 Q3	$20K	Hold	98	–	–	﹤0.01%	687
2014 Q2	$20K	Buy	98 +1	+1%	+$193	﹤0.01%	689
2014 Q1	$19K	Buy	97 +22	+29%	+$4.32K	﹤0.01%	702
2013 Q4	$16K	Buy	75 +55	+275%	+$11K	﹤0.01%	711
2013 Q3	$4K	Buy	+20	New	+$3.55K	﹤0.01%	822

Other funds holding AMG

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

Ariel Investments Chicago, Illinois $10B AUM 42.59% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

O'Shaughnessy Asset Management's AMG Position: Q2 2026 in Review

O'Shaughnessy Asset Management increased its Affiliated Managers Group (AMG) stake by 53% in Q2 2026, buying an estimated $2.09M and bringing the position to 19,465 shares worth $6.59M. The position accounts for 0.03% of the portfolio, ranked #482.

O'Shaughnessy Asset Management first reported a position in AMG in Q3 2013 and has held it in 29 quarters since. The position peaked at $18.7M in Q2 2021. 566 funds tracked by Wall St. Rank hold AMG as of Q2 2026.

O'Shaughnessy Asset Management held 19,465 shares of Affiliated Managers Group worth $6.59M as of Q2 2026.
O'Shaughnessy Asset Management bought 6,732 Affiliated Managers Group shares in Q2 2026, an estimated $2.09M.
Affiliated Managers Group made up 0.03% of O'Shaughnessy Asset Management's portfolio in Q2 2026, its #482 holding.
O'Shaughnessy Asset Management first reported a position in Affiliated Managers Group in Q3 2013 and has held it in 29 quarters since.
O'Shaughnessy Asset Management's Affiliated Managers Group position peaked at $18.7M in Q2 2021.
566 funds tracked by Wall St. Rank held Affiliated Managers Group as of Q2 2026.

Based on O'Shaughnessy Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.