Gregory Hughes - 21 May 2026 Form 4 Insider Report for BLACKLINE, INC. (BL)

Reporting relationship: Director
Issuer ticker: BL
Reported as of: 21 May 2026
Net transaction value: -$49,519
SEC form: 4
Accepted by SEC: 22 May 2026, 17:07:06 UTC
Prior SEC filing: 08 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Karole Morgan-Prager, Attorney-in-Fact

Key filing fact

Gregory Hughes filed Form 4 for BLACKLINE, INC. (BL) on 22 May 2026.

Key facts

This page summarizes Gregory Hughes's Form 4 filing for BLACKLINE, INC. (BL).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 22 May 2026, 17:07.

Change

Previous filing in this sequence was filed on 08 May 2026.
Current net transaction value: -$49,519.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001281002 Primary reporting owner

HUGHES GREGORY

Relationship: Director
Address: 21300 VICTORY BLVD., 12TH FLOOR, WOODLAND HILLS
Signature: /s/ Karole Morgan-Prager, Attorney-in-Fact
Signature date: 22 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BL transaction

Common Stock

Sale

Transaction value: $49,519
Shares: -1,637
Change %: -17%
Price: $30.25
Shares after: 7,755
Date: 21 May 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 1 footnote

Footnote F1

The transaction reported on this Form 4 was effectuated pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 19, 2026.