AFFILIATED MANAGERS GROUP

Ticker: AMG CUSIP: 008252108 Class: COM

PRINCIPAL SECURITIES, INC.'s Holding History (CIK: 0000012600)

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

Q3 2025

Shares 315 Value ($000) $75 Avg Close $220.39 Range $194.74 - $250.14

Q2 2025

Shares 102 Value ($000) $20 Avg Close $173.47 Range $139.20 - $199.47

Q1 2025

Shares 33 Value ($000) $6 Avg Close $174.30 Range $151.61 - $191.09

Q4 2024

Shares 33 Value ($000) $6 Avg Close $186.57 Range $173.54 - $199.47

Q3 2024

Shares 37 Value ($000) $7 Avg Close $169.81 Range $152.32 - $189.75

Q2 2024

Shares 6 Value ($000) $1 Avg Close $159.16 Range $147.08 - $169.59

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	315	$75	$220.39	$194.74 - $250.14
Q2 2025	102	$20	$173.47	$139.20 - $199.47
Q1 2025	33	$6	$174.30	$151.61 - $191.09
Q4 2024	33	$6	$186.57	$173.54 - $199.47
Q3 2024	37	$7	$169.81	$152.32 - $189.75
Q2 2024	6	$1	$159.16	$147.08 - $169.59