APOGEE THERAPEUTICS INC

Ticker: APGE CUSIP: 03770N101 Class: Common Stock

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

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

Q4 2025

Shares 480,453 Value ($000) $36,265 Avg Close $62.99 Range $38.88 - $80.99

Q3 2025

Shares 374,407 Value ($000) $14,875 Avg Close $38.18 Range $34.34 - $47.71

Q2 2025

Shares 309,066 Value ($000) $13,423 Avg Close $38.04 Range $26.20 - $44.65

Q1 2025

Shares 108,817 Value ($000) $4,065 Avg Close $38.66 Range $29.10 - $50.56

Q4 2024

Shares 172,711 Value ($000) $7,824 Avg Close $51.00 Range $41.85 - $63.50

Q3 2024

Shares 311,316 Value ($000) $18,287 Avg Close $47.91 Range $36.60 - $60.82

Q1 2024

Shares 76,481 Value ($000) $5,082 Avg Close $43.66 Range $27.05 - $72.29

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	480,453	$36,265	$62.99	$38.88 - $80.99
Q3 2025	374,407	$14,875	$38.18	$34.34 - $47.71
Q2 2025	309,066	$13,423	$38.04	$26.20 - $44.65
Q1 2025	108,817	$4,065	$38.66	$29.10 - $50.56
Q4 2024	172,711	$7,824	$51.00	$41.85 - $63.50
Q3 2024	311,316	$18,287	$47.91	$36.60 - $60.82
Q1 2024	76,481	$5,082	$43.66	$27.05 - $72.29