Key facts
- This page summarizes Therese Tucker's Form 4 filing for BLACKLINE, INC. (BL).
- 5 reported transactions and 2 derivative rows are listed below.
- Accepted by SEC: 26 Aug 2026, 17:49.
Therese Tucker - 24 Aug 2026 Form 4 Insider Report for BLACKLINE, INC. (BL)
- Reporting relationship
- Director
- Issuer ticker
- BL
- Reported as of
- 24 Aug 2026
- Net transaction value
- -$2,236,990
- SEC form
- 4
- Accepted by SEC
- 26 Aug 2026, 17:49:07 UTC
- Prior SEC filing
- 21 May 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Karole Morgan-Prager, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Therese Tucker filed Form 4 for BLACKLINE, INC. (BL) on 26 Aug 2026.
Change
- Previous filing in this sequence was filed on 21 May 2026.
- Current net transaction value: -$2,236,990.
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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001688365
Primary reporting owner
Tucker Therese
- Relationship
- Director
- Address
- 21300 VICTORY BLVD., 12TH FLOOR, WOODLAND HILLS
- Signature
- /s/ Karole Morgan-Prager, Attorney-in-Fact
- Signature date
- 26 Aug 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
BL
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +70,000
- Change %
- +20%
- Price
- $14.00*
- Shares after
- 424,997
- Date
- 24 Aug 2026
- Ownership
- Direct
BL
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +26,560
- Change %
- +6.2%
- Price
- $14.00*
- Shares after
- 451,557
- Date
- 24 Aug 2026
- Ownership
- Direct
BL
transaction
Common Stock
Sale
- Transaction value
- $2,236,990
- Shares
- -70,000
- Change %
- -16%
- Price
- $31.96
- Shares after
- 381,557
- Date
- 24 Aug 2026
- Ownership
- Direct
- Footnotes
- F1
BL
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 100,178
- Date
- 24 Aug 2026
- Ownership
- Brian and Therese Tucker Charitable Remainder Trust
BL
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 1,509,881
- Date
- 24 Aug 2026
- Ownership
- Brian and Therese Tucker Living Trust
BL
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 54,074
- Date
- 24 Aug 2026
- Ownership
- Claire Seimetz 2015 Trust
BL
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 577,200
- Date
- 24 Aug 2026
- Ownership
- Isaac Tucker 2012 Irrevocable Trust
BL
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 577,200
- Date
- 24 Aug 2026
- Ownership
- Roseanna Tucker 2012 Irrevocable Trust
BL
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 52,444
- Date
- 24 Aug 2026
- Ownership
- Tucker Family CLAT
BL
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 874,128
- Date
- 24 Aug 2026
- Ownership
- Tucker Legacy Trust
BL
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 129,897
- Date
- 24 Aug 2026
- Ownership
- Tucker Legacy Trust II
BL
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 250,916
- Date
- 24 Aug 2026
- Ownership
- Tucker Seimetz Safety Net Grat
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
BL
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -70,000
- Change %
- -72%
- Price
- $0.000000*
- Shares after
- 26,560
- Date
- 24 Aug 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 70,000
- Exercise price
- $14.00
- Footnotes
- F2
BL
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -26,560
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 24 Aug 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 26,560
- Exercise price
- $14.00
- Footnotes
- F2
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 2 footnotes
Footnote F1
The sale price represents the weighted-average price of shares sold ranging from $31.78 to $32.14 per share, and is rounded to the nearest tenth of a cent. Upon request by the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.
Footnote F2
The options became exercisable based on the following vesting schedule: The shares subject to the option vested in 4 equal, annual installments beginning on the one-year anniversary of the grant date, subject to the reporting person's continued service through each applicable vesting date.