SOTERA HEALTH CO

Ticker: SHC CUSIP: 83601L102 Class: Common Stock

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q4 2023

Shares 396,116 Value ($000) $6,675 Avg Close $14.16 Range $12.34 - $17.39

Q3 2023

Shares 395,592 Value ($000) $5,926 Avg Close $16.87 Range $14.32 - $19.40

Q2 2023

Shares 399,527 Value ($000) $7,527 Avg Close $15.89 Range $13.87 - $19.30

Q1 2023

Shares 337,707 Value ($000) $6,048 Avg Close $16.71 Range $8.02 - $19.02

Q4 2022

Shares 368,281 Value ($000) $3,068 Avg Close $7.46 Range $5.78 - $9.60

Q3 2022

Shares 369,368 Value ($000) $2,519 Avg Close $16.63 Range $6.80 - $20.41

Q2 2022

Shares 371,336 Value ($000) $7,274 Avg Close $20.95 Range $18.62 - $24.90

Q1 2022

Shares 382,014 Value ($000) $8,274 Avg Close $21.21 Range $18.31 - $23.83

Q4 2021

Shares 292,040 Value ($000) $6,878 Avg Close $23.93 Range $20.48 - $27.38

Q3 2021

Shares 266,044 Value ($000) $6,957 Avg Close $24.19 Range $21.95 - $26.86

Q2 2021

Shares 273,215 Value ($000) $6,620 Avg Close $24.61 Range $21.21 - $26.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2023	396,116	$6,675	$14.16	$12.34 - $17.39
Q3 2023	395,592	$5,926	$16.87	$14.32 - $19.40
Q2 2023	399,527	$7,527	$15.89	$13.87 - $19.30
Q1 2023	337,707	$6,048	$16.71	$8.02 - $19.02
Q4 2022	368,281	$3,068	$7.46	$5.78 - $9.60
Q3 2022	369,368	$2,519	$16.63	$6.80 - $20.41
Q2 2022	371,336	$7,274	$20.95	$18.62 - $24.90
Q1 2022	382,014	$8,274	$21.21	$18.31 - $23.83
Q4 2021	292,040	$6,878	$23.93	$20.48 - $27.38
Q3 2021	266,044	$6,957	$24.19	$21.95 - $26.86
Q2 2021	273,215	$6,620	$24.61	$21.21 - $26.49