SEC Form 4 · accession 0001666134-26-000100
BLACKLINE, INC. · BL
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Therese Tucker
Director
Period of report
Aug 24, 2026
Accepted (ET)
Aug 26, 2026 · 5:49 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001666134
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Aug 24, 2026 | M | 70,000 | $14.00 | A | 424,997 | D | |
| Common Stock | Aug 24, 2026 | M | 26,560 | $14.00 | A | 451,557 | D | |
| Common StockF1 | Aug 24, 2026 | S | 70,000 | $31.957 | D | 381,557 | D | |
| Common Stock | holding | — | — | — | 100,178 | I | Brian and Therese Tucker Charitable Remainder Trust | |
| Common Stock | holding | — | — | — | 1,509,881 | I | Brian and Therese Tucker Living Trust | |
| Common Stock | holding | — | — | — | 54,074 | I | Claire Seimetz 2015 Trust | |
| Common Stock | holding | — | — | — | 577,200 | I | Isaac Tucker 2012 Irrevocable Trust | |
| Common Stock | holding | — | — | — | 577,200 | I | Roseanna Tucker 2012 Irrevocable Trust | |
| Common Stock | holding | — | — | — | 52,444 | I | Tucker Family CLAT | |
| Common Stock | holding | — | — | — | 874,128 | I | Tucker Legacy Trust | |
| Common Stock | holding | — | — | — | 129,897 | I | Tucker Legacy Trust II | |
| Common Stock | holding | — | — | — | 250,916 | I | Tucker Seimetz Safety Net Grat |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (Right to Buy)F2 | $14.00 | Aug 24, 2026 | M | 70,000 | D | — | Oct 16, 2026 | Common Stock | 70,000 | 26,560 | D |
| Stock Option (Right to Buy)F2 | $14.00 | Aug 24, 2026 | M | 26,560 | D | — | Oct 16, 2026 | Common Stock | 26,560 | 0 | D |
Explanation of responses
- F1The 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.
- F2The 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.