BLACKLINE INC

Ticker: BL CUSIP: 09239B109 Class: Common Stock

SUMMIT SECURITIES GROUP LLC's Holding History (CIK: 0001531593)

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

Q2 2025

Shares 1,585 Value ($000) $90 Avg Close $51.65 Range $40.82 - $59.43

Q1 2025

Shares 127 Value ($000) $6 Avg Close $54.76 Range $46.88 - $66.25

Q3 2024

Shares 1 Value ($000) $0 Avg Close $49.23 Range $43.37 - $56.48

Q2 2023

Shares 1,000 Value ($000) $0 Avg Close $55.51 Range $49.47 - $66.54

Q1 2022

Shares 4 Value ($000) $0 Avg Close $80.88 Range $65.15 - $104.64

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	1,585	$90	$51.65	$40.82 - $59.43
Q1 2025	127	$6	$54.76	$46.88 - $66.25
Q3 2024	1	$0	$49.23	$43.37 - $56.48
Q2 2023	1,000	$0	$55.51	$49.47 - $66.54
Q1 2022	4	$0	$80.88	$65.15 - $104.64