STOCK TITAN

BlackLine (BL) director sells 70K shares at $31.957

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

BLACKLINE, INC. (BL) director Therese Tucker reported an option exercise-and-sale transaction. On 2026-08-24 she exercised stock options to acquire a total of 96,560 shares of Common Stock at $14.00 per share, then sold 70,000 shares of Common Stock at a weighted-average price of $31.957 per share. Following these transactions, she reported indirect holdings of Common Stock through multiple trusts, including the Brian and Therese Tucker Charitable Remainder Trust, the Brian and Therese Tucker Living Trust, and several family trusts, with each trust’s post-transaction share balances disclosed.

Positive

  • None.

Negative

  • None.
Insider Tucker Therese
Role Director
Sold 70,000 shs ($2.24M)
Approx. gross sale proceeds $2.24M
Approx. exercise cost $1.35M
Type Security Shares Price Value
Exercise Stock Option (Right to Buy) F2 70,000 $0.00 $0.00
Exercise Stock Option (Right to Buy) F2 26,560 $0.00 $0.00
Exercise Common Stock 70,000 $14.00 $980K
Exercise Common Stock 26,560 $14.00 $372K
Sale Common Stock F1 70,000 $31.957 $2.24M
holding Common Stock -- -- --
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holding Common Stock -- -- --
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Holdings After Transaction: Stock Option (Right to Buy) — 0 shares (Direct); Common Stock — 381,557 shares (Direct); Common Stock — 100,178 shares (Indirect, Brian and Therese Tucker Charitable Remainder Trust); Common Stock — 1,509,881 shares (Indirect, Brian and Therese Tucker Living Trust); Common Stock — 54,074 shares (Indirect, Claire Seimetz 2015 Trust); Common Stock — 577,200 shares (Indirect, Isaac Tucker 2012 Irrevocable Trust); Common Stock — 577,200 shares (Indirect, Roseanna Tucker 2012 Irrevocable Trust); Common Stock — 52,444 shares (Indirect, Tucker Family CLAT); Common Stock — 874,128 shares (Indirect, Tucker Legacy Trust); Common Stock — 129,897 shares (Indirect, Tucker Legacy Trust II); Common Stock — 250,916 shares (Indirect, Tucker Seimetz Safety Net Grat)
Footnotes (2)
  1. 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.
  2. 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.
Shares sold 70,000 shares of Common Stock Sale on 2026-08-24 reported by director Therese Tucker
Sale weighted-average price $31.957 per share Weighted-average price for 70,000 BL shares sold, with prices from $31.78 to $32.14
Options exercised (total shares) 96,560 shares of Common Stock Shares acquired via option exercises on 2026-08-24
Option exercise price $14.00 per share Exercise price for stock options converted into 96,560 BL shares
Charitable Remainder Trust holdings 100,178 shares of Common Stock Indirect ownership via Brian and Therese Tucker Charitable Remainder Trust after transactions
Living Trust holdings 1,509,881 shares of Common Stock Indirect ownership via Brian and Therese Tucker Living Trust after transactions
Tucker Legacy Trust holdings 874,128 shares of Common Stock Indirect ownership via Tucker Legacy Trust after transactions
Stock Option (Right to Buy) financial
"security_title: Stock Option (Right to Buy)"
weighted-average price financial
"The sale price represents the weighted-average price of shares sold"
Weighted-average price is the average of multiple prices where each price is counted according to its size or importance—larger trades carry more weight than smaller ones, like averaging course grades by credit hours. It matters to investors because it gives a more realistic picture of the true price paid or received, helping assess trade execution, compare performance, calculate cost basis, and value positions more accurately than a simple average.
Charitable Remainder Trust financial
"nature_of_ownership: Brian and Therese Tucker Charitable Remainder Trust"
Irrevocable Trust financial
"nature_of_ownership: Isaac Tucker 2012 Irrevocable Trust"
An irrevocable trust is a legal arrangement where an owner transfers assets into a separate entity managed by a trustee and gives up the power to modify or reclaim those assets. For investors it matters because putting stock or other holdings into such a trust can change who controls and benefits from the assets, affect taxes and creditor protection, and influence how easy it is to sell or value those holdings—like placing valuables in a locked safe overseen by someone else.
Grantor Retained Annuity Trust financial
"nature_of_ownership: Tucker Seimetz Safety Net Grat"
A grantor retained annuity trust (GRAT) is an estate-planning tool where the person who creates the trust transfers assets into it but receives fixed cash payments (an annuity) from the trust for a set number of years; whatever remains after that term passes to designated beneficiaries. It matters to investors because it can shift future appreciation of assets out of the creator’s taxable estate—like putting an asset into a timed vending machine that pays you fixed amounts while any extra value that grows inside the machine goes to heirs with reduced gift or estate tax consequences.

FAQ

What insider transactions did BL director Therese Tucker report on 2026-08-24?

Therese Tucker exercised options for 96,560 shares of BLACKLINE, INC. Common Stock at $14.00 per share and sold 70,000 shares of Common Stock at a weighted-average price of $31.957 per share on 2026-08-24.

How many BLACKLINE (BL) shares did Therese Tucker sell in this Form 4 filing?

Therese Tucker reported selling 70,000 shares of BLACKLINE, INC. Common Stock at a weighted-average price of $31.957 per share, based on individual sale prices ranging from $31.78 to $32.14 per share.

At what price did Therese Tucker exercise stock options for BL shares?

She exercised stock options to acquire a total of 96,560 shares of BLACKLINE, INC. Common Stock at an exercise price of $14.00 per share. These options were scheduled to vest in four equal annual installments from the grant date anniversary.

What BL share holdings does Therese Tucker report through the Brian and Therese Tucker Living Trust?

Through the Brian and Therese Tucker Living Trust, Therese Tucker reported indirect ownership of 1,509,881 shares of BLACKLINE, INC. Common Stock following the reported transactions on 2026-08-24.

Which trusts associated with Therese Tucker hold BL shares after these transactions?

Reported indirect holdings include BL Common Stock in multiple trusts: Brian and Therese Tucker Charitable Remainder Trust (100,178 shares), Brian and Therese Tucker Living Trust (1,509,881 shares), and several family trusts such as the Tucker Legacy Trust (874,128 shares) and others with disclosed share balances.

Does the Form 4 indicate any remaining derivative (option) positions for BL?

The filing’s derivative summary shows no remaining derivative positions disclosed in this Form 4. The reported derivative activity relates to the exercise of previously granted stock options for 96,560 shares of Common Stock at $14.00 per share.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Tucker Therese

(Last)(First)(Middle)
21300 VICTORY BLVD., 12TH FLOOR

(Street)
WOODLAND HILLS CALIFORNIA 91367

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
BLACKLINE, INC. [ BL ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/24/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock08/24/2026M70,000A$14424,997D
Common Stock08/24/2026M26,560A$14451,557D
Common Stock08/24/2026S70,000D$31.957(1)381,557D
Common Stock100,178IBrian and Therese Tucker Charitable Remainder Trust
Common Stock1,509,881IBrian and Therese Tucker Living Trust
Common Stock54,074IClaire Seimetz 2015 Trust
Common Stock577,200IIsaac Tucker 2012 Irrevocable Trust
Common Stock577,200IRoseanna Tucker 2012 Irrevocable Trust
Common Stock52,444ITucker Family CLAT
Common Stock874,128ITucker Legacy Trust
Common Stock129,897ITucker Legacy Trust II
Common Stock250,916ITucker Seimetz Safety Net Grat
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$1408/24/2026M70,000 (2)10/16/2026Common Stock70,000$026,560D
Stock Option (Right to Buy)$1408/24/2026M26,560 (2)10/16/2026Common Stock26,560$00D
Explanation of Responses:
1. 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.
2. 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.
/s/ Karole Morgan-Prager, Attorney-in-Fact08/26/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)