AFFILIATED MANAGERS GROUP

Ticker: AMG CUSIP: 008252108 Class: COM

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 145,483 Value ($000) $41,940 Avg Close $258.45 Range $230.09 - $299.69

Q3 2025

Shares 295,081 Value ($000) $70,356 Avg Close $220.39 Range $194.74 - $250.14

Q4 2023

Shares 1,485 Value ($000) $225 Avg Close $134.30 Range $120.16 - $156.31

Q3 2016

Shares 71,173 Value ($000) $10,299 Avg Close $138.59 Range $126.84 - $143.96

Q2 2016

Shares 128,502 Value ($000) $18,089 Avg Close $158.47 Range $126.98 - $174.12

Q3 2015

Shares 17,377 Value ($000) $2,971 Avg Close $190.37 Range $159.30 - $214.73

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	145,483	$41,940	$258.45	$230.09 - $299.69
Q3 2025	295,081	$70,356	$220.39	$194.74 - $250.14
Q4 2023	1,485	$225	$134.30	$120.16 - $156.31
Q3 2016	71,173	$10,299	$138.59	$126.84 - $143.96
Q2 2016	128,502	$18,089	$158.47	$126.98 - $174.12
Q3 2015	17,377	$2,971	$190.37	$159.30 - $214.73