InsiderTrades

Form 4 for BL BLACKLINE, INC.

Accepted 2026-08-26 17:49:07 ET · period of report 2026-08-24 · accession 0001666134-26-000100 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
DM 2026-08-26 17:49 2026-08-24 BL Tucker Therese Dir M - OptEx $14.00 +96.6K 451.6K +27% +$1.35M
D 2026-08-26 17:49 2026-08-24 BL Tucker Therese Dir S - Sale+OE $31.96 -70.0K 381.6K -16% -$2.24M
DM 2026-08-26 17:49 2026-08-24 BL Tucker Therese Dir M - OptEx $0.00 -96.6K 0 -100% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-08-24 M A 70,000 $14.00 424,997 D — —
2 Common Common Stock 2026-08-24 M A 26,560 $14.00 451,557 D — —
3 Common Common Stock 2026-08-24 S D 70,000 $31.96 381,557 D — — (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.
4 Derivative Stock Option (Right to Buy) 2026-08-24 M D 70,000 $0.00 26,560 D $14.00 · — to 2026-10-16 70,000 Common Stock (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.
5 Derivative Stock Option (Right to Buy) 2026-08-24 M D 26,560 $0.00 0 D $14.00 · — to 2026-10-16 26,560 Common Stock (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.