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person · Reporting owner

Van Houten Stuart

Disclosed activity across 1 company

Tapewire entity
20462
SEC CIK
0002056156

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
BLACKLINE, INC.BL · Entity 4556Chief Commercial OfficerAugust 20, 2026August 24, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

BLACKLINE, INC.

Report date August 20, 2026 · Filed August 24, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect106,966 Reported balance After 2026-08-20 transaction · row 1
1 source row

Row 1 · 2026-08-20 · Tax withholding · Disposed 1,720 · Balance 106,966

F1: The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units.

Filing footnotes · ownership attribution and instrument terms

F1: The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 20, 2026 Filed Aug 24, 2026 20:45 UTC BLACKLINE, INC. BL · Entity 4556 Tax withholdingCommon Stock 1,720 $31.92 $54,902.40
Disclosure

SEC source: 0001666134-26-000094 · form4.xml · nonDerivative · entry 1

Van Houten Stuart · CIK 0002056156 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 106,966

F1 · shares: The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units.

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May 20, 2026 Filed May 21, 2026 20:27 UTC BLACKLINE, INC. BL · Entity 4556 Tax withholdingCommon Stock 1,720 $30.84 $53,044.80
Disclosure

SEC source: 0001666134-26-000075 · form4.xml · nonDerivative · entry 1

Van Houten Stuart · CIK 0002056156 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,686

F1 · shares: The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units.

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April 01, 2026 Filed Apr 3, 2026 20:13 UTC BLACKLINE, INC. BL · Entity 4556 GrantCommon Stock 47,880 $0.00 $0.00
Disclosure

SEC source: 0001666134-26-000032 · form4.xml · nonDerivative · entry 1

Van Houten Stuart · CIK 0002056156 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,406

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). 25% of the RSUs will vest on the one (1) year anniversary of February 20, 2026 (the "RSU Vesting Commencement Date"), and 1/16th of the RSUs will vest every three months thereafter on the same day of the month as the RSU Vesting Commencement Date, subject to the reporting person's continued service through each applicable vesting date.

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February 20, 2026 Filed Feb 24, 2026 22:50 UTC BLACKLINE, INC. BL · Entity 4556 Tax withholdingCommon Stock 7,453 $36.15 $269,425.95
Disclosure

SEC source: 0001666134-26-000012 · form4.xml · nonDerivative · entry 2

Van Houten Stuart · CIK 0002056156 · CHIEF COMMERCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,526

F2 · shares: The reported shares were withheld to cover the reporting person's tax liability in connection with the vesting of PRSUs and restricted stock units.

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February 20, 2026 Filed Feb 24, 2026 22:50 UTC BLACKLINE, INC. BL · Entity 4556 Exercise / conversionCommon Stock 8,979 $36.15 $324,590.85
Disclosure

SEC source: 0001666134-26-000012 · form4.xml · nonDerivative · entry 1

Van Houten Stuart · CIK 0002056156 · CHIEF COMMERCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,979

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: The reported shares relate to the portion of a Performance Based Restricted Stock Unit ("PRSU") granted on April 2, 2025 that has vested based on the Issuer's achievement of certain fiscal 2025 performance targets that were set by the Compensation Committee at the time of grant.

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April 02, 2025 Filed Apr 4, 2025 20:22 UTC BLACKLINE, INC. BL · Entity 4556 GrantCommon Stock 61,000 $0.00 $0.00
Disclosure

SEC source: 0001127602-25-011708 · form4.xml · nonDerivative · entry 1

Van Houten Stuart · CIK 0002056156 · CHIEF COMMERCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,000

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). 25% of the RSUs will vest on the one (1) year anniversary of February 20, 2025 (the "RSU Vesting Commencement Date"), and 1/16th of the RSUs will vest every three months thereafter on the same day of the month as the RSU Vesting Commencement Date, subject to the reporting person's continued service through each applicable vesting date.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.