IRON MTN INC NEW

Ticker: IRM CUSIP: 46284V101 Class: COM

Madison Asset Management, LLC's Holding History (CIK: 0001299351)

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

Q4 2025

Shares 17,052 Value ($000) $1,414 Avg Close $92.78 Range $77.77 - $107.03

Q3 2025

Shares 17,960 Value ($000) $1,831 Avg Close $94.72 Range $86.18 - $103.65

Q2 2025

Shares 18,531 Value ($000) $1,901 Avg Close $91.94 Range $70.45 - $103.63

Q1 2025

Shares 18,531 Value ($000) $1,594 Avg Close $93.15 Range $78.66 - $108.27

Q4 2024

Shares 24,369 Value ($000) $2,561 Avg Close $112.79 Range $97.81 - $124.90

Q3 2024

Shares 24,369 Value ($000) $2,896 Avg Close $102.07 Range $84.42 - $115.60

Q2 2024

Shares 30,083 Value ($000) $2,696 Avg Close $76.66 Range $69.57 - $86.17

Q1 2024

Shares 30,083 Value ($000) $2,413 Avg Close $68.03 Range $60.70 - $77.13

Q4 2023

Shares 30,083 Value ($000) $2,105 Avg Close $58.41 Range $52.52 - $66.31

Q3 2023

Shares 30,402 Value ($000) $1,807 Avg Close $56.32 Range $51.77 - $59.93

Q2 2023

Shares 30,473 Value ($000) $1,731 Avg Close $49.91 Range $46.48 - $52.92

Q1 2023

Shares 30,473 Value ($000) $1,612 Avg Close $47.24 Range $43.98 - $51.44

Q4 2022

Shares 34,871 Value ($000) $2 Avg Close $44.98 Range $39.02 - $50.36

Q3 2022

Shares 35,599 Value ($000) $1,565 Avg Close $44.49 Range $38.52 - $49.96

Q2 2022

Shares 35,738 Value ($000) $1,740 Avg Close $45.77 Range $40.30 - $50.86

Q1 2022

Shares 36,178 Value ($000) $2,005 Avg Close $40.95 Range $35.72 - $49.04

Q4 2021

Shares 36,160 Value ($000) $1,892 Avg Close $40.12 Range $35.72 - $45.55

Q3 2021

Shares 33,622 Value ($000) $1,461 Avg Close $37.70 Range $35.07 - $41.42

Q2 2021

Shares 32,222 Value ($000) $1,364 Avg Close $34.67 Range $30.15 - $39.02

Q1 2021

Shares 30,996 Value ($000) $1,147 Avg Close $27.21 Range $22.46 - $33.48

Q4 2020

Shares 30,083 Value ($000) $887 Avg Close $22.13 Range $19.73 - $24.37

Q3 2020

Shares 30,083 Value ($000) $806 Avg Close $22.21 Range $19.89 - $23.94

Q2 2020

Shares 30,083 Value ($000) $785 Avg Close $19.29 Range $15.96 - $23.32

Q1 2020

Shares 21,083 Value ($000) $502 Avg Close $22.56 Range $15.97 - $25.60

Q4 2019

Shares 13,483 Value ($000) $430 Avg Close $23.96 Range $23.03 - $25.08

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	17,052	$1,414	$92.78	$77.77 - $107.03
Q3 2025	17,960	$1,831	$94.72	$86.18 - $103.65
Q2 2025	18,531	$1,901	$91.94	$70.45 - $103.63
Q1 2025	18,531	$1,594	$93.15	$78.66 - $108.27
Q4 2024	24,369	$2,561	$112.79	$97.81 - $124.90
Q3 2024	24,369	$2,896	$102.07	$84.42 - $115.60
Q2 2024	30,083	$2,696	$76.66	$69.57 - $86.17
Q1 2024	30,083	$2,413	$68.03	$60.70 - $77.13
Q4 2023	30,083	$2,105	$58.41	$52.52 - $66.31
Q3 2023	30,402	$1,807	$56.32	$51.77 - $59.93
Q2 2023	30,473	$1,731	$49.91	$46.48 - $52.92
Q1 2023	30,473	$1,612	$47.24	$43.98 - $51.44
Q4 2022	34,871	$2	$44.98	$39.02 - $50.36
Q3 2022	35,599	$1,565	$44.49	$38.52 - $49.96
Q2 2022	35,738	$1,740	$45.77	$40.30 - $50.86
Q1 2022	36,178	$2,005	$40.95	$35.72 - $49.04
Q4 2021	36,160	$1,892	$40.12	$35.72 - $45.55
Q3 2021	33,622	$1,461	$37.70	$35.07 - $41.42
Q2 2021	32,222	$1,364	$34.67	$30.15 - $39.02
Q1 2021	30,996	$1,147	$27.21	$22.46 - $33.48
Q4 2020	30,083	$887	$22.13	$19.73 - $24.37
Q3 2020	30,083	$806	$22.21	$19.89 - $23.94
Q2 2020	30,083	$785	$19.29	$15.96 - $23.32
Q1 2020	21,083	$502	$22.56	$15.97 - $25.60
Q4 2019	13,483	$430	$23.96	$23.03 - $25.08