BLACKLINE INC

Ticker: BL CUSIP: 09239B109 Class: Common Stock

FIRST MANHATTAN CO. LLC.'s Holding History (CIK: 0000728083)

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

Q4 2025

Shares 2,428,604 Value ($000) $134,278 Avg Close $55.08 Range $48.74 - $59.57

Q3 2025

Shares 2,087,998 Value ($000) $110,873 Avg Close $54.03 Range $47.94 - $58.32

Q2 2025

Shares 1,827,918 Value ($000) $103,497 Avg Close $51.65 Range $40.82 - $59.43

Q1 2025

Shares 815,975 Value ($000) $39,510 Avg Close $54.76 Range $46.88 - $66.25

Q4 2024

Shares 160,410 Value ($000) $11,196 Avg Close $59.63 Range $53.55 - $65.10

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,428,604	$134,278	$55.08	$48.74 - $59.57
Q3 2025	2,087,998	$110,873	$54.03	$47.94 - $58.32
Q2 2025	1,827,918	$103,497	$51.65	$40.82 - $59.43
Q1 2025	815,975	$39,510	$54.76	$46.88 - $66.25
Q4 2024	160,410	$11,196	$59.63	$53.55 - $65.10