Kronos Bio, Inc. Forms 3, 4 and 5: Stock Options
Statements of beneficial ownership filed with the SEC by officers, directors and 10% owners: 40 rows in 2025. Transaction codes are the SEC's. Shares and prices are split-adjusted; the as-filed figure is underneath.
- 2025-06-20: Reporting owner Belldegrun Arie; Form 4; Security Stock Option (Right to Buy); Transaction D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e).
- 2025-06-20: Reporting owner Belldegrun Arie; Form 4; Security Stock Option (Right to Buy); Transaction D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e).
- 2025-06-20: Reporting owner Belldegrun Arie; Form 4; Security Stock Option (Right to Buy); Transaction D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e).
- 2025-06-20: Reporting owner Belldegrun Arie; Form 4; Security Stock Option (Right to Buy); Transaction D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e).
| Transaction date | Reporting owner | Form | Security | Transaction | Shares | Price | Price that day | Filing |
|---|---|---|---|---|---|---|---|---|
| 2025-06-20 | Belldegrun Arie Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −20,600 0 owned after | $24.18 exercise price | 2025-06-20 | |
| 2025-06-20 | Belldegrun Arie Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $3.53 exercise price | 2025-06-20 | |
| 2025-06-20 | Belldegrun Arie Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $1.48 exercise price | 2025-06-20 | |
| 2025-06-20 | Belldegrun Arie Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $0.95 exercise price | 2025-06-20 | |
| 2025-06-20 | BISCHOFBERGER NORBERT W Director, 10% Owner | 4 | Employee Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −297,186 0 owned after | $30.78 exercise price | 2025-06-20 | |
| 2025-06-20 | BISCHOFBERGER NORBERT W Director, 10% Owner | 4 | Employee Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −400,000 0 owned after | $7.30 exercise price | 2025-06-20 | |
| 2025-06-20 | BISCHOFBERGER NORBERT W Director, 10% Owner | 4 | Employee Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −570,868 0 owned after | $2.09 exercise price | 2025-06-20 | |
| 2025-06-20 | BISCHOFBERGER NORBERT W Director, 10% Owner | 4 | Employee Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −699,800 0 owned after | $1.08 exercise price | 2025-06-20 | |
| 2025-06-20 | Ridloff Elena Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −25,879 0 owned after | $13.35 exercise price | 2025-06-20 | |
| 2025-06-20 | Ridloff Elena Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −26,871 0 owned after | $13.35 exercise price | 2025-06-20 | |
| 2025-06-20 | Ridloff Elena Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −15,450 0 owned after | $24.18 exercise price | 2025-06-20 | |
| 2025-06-20 | Ridloff Elena Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $3.53 exercise price | 2025-06-20 | |
| 2025-06-20 | Ridloff Elena Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −17,000 0 owned after | $1.48 exercise price | 2025-06-20 | |
| 2025-06-20 | Ridloff Elena Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −17,000 0 owned after | $0.95 exercise price | 2025-06-20 | |
| 2025-06-20 | TANEN DAVID M Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −85,608 0 owned after | $4.14 exercise price | 2025-06-20 | |
| 2025-06-20 | TANEN DAVID M Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −19,892 0 owned after | $4.14 exercise price | 2025-06-20 | |
| 2025-06-20 | TANEN DAVID M Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −20,600 0 owned after | $24.18 exercise price | 2025-06-20 | |
| 2025-06-20 | TANEN DAVID M Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $3.53 exercise price | 2025-06-20 | |
| 2025-06-20 | TANEN DAVID M Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $1.48 exercise price | 2025-06-20 | |
| 2025-06-20 | TANEN DAVID M Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $0.95 exercise price | 2025-06-20 | |
| 2025-06-20 | Blunt Roshawn A. Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −41,200 0 owned after | $17.10 exercise price | 2025-06-20 | |
| 2025-06-20 | Blunt Roshawn A. Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $3.53 exercise price | 2025-06-20 | |
| 2025-06-20 | Blunt Roshawn A. Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $1.48 exercise price | 2025-06-20 | |
| 2025-06-20 | Blunt Roshawn A. Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $0.95 exercise price | 2025-06-20 | |
| 2025-06-20 | Yang Taiyin Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −41,200 0 owned after | $28.58 exercise price | 2025-06-20 | |
| 2025-06-20 | Yang Taiyin Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −5,150 0 owned after | $24.18 exercise price | 2025-06-20 | |
| 2025-06-20 | Yang Taiyin Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −17,000 0 owned after | $3.53 exercise price | 2025-06-20 | |
| 2025-06-20 | Yang Taiyin Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $1.48 exercise price | 2025-06-20 | |
| 2025-06-20 | Yang Taiyin Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $0.95 exercise price | 2025-06-20 | |
| 2025-06-20 | Kazam Joshua A Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −20,600 0 owned after | $24.18 exercise price | 2025-06-20 | |
| 2025-06-20 | Kazam Joshua A Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $3.53 exercise price | 2025-06-20 | |
| 2025-06-20 | Kazam Joshua A Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $1.48 exercise price | 2025-06-20 | |
| 2025-06-20 | Kazam Joshua A Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $0.95 exercise price | 2025-06-20 | |
| 2025-06-20 | Stultz Katherine V Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −68,000 0 owned after | $1.29 exercise price | 2025-06-20 | |
| 2025-06-20 | Stultz Katherine V Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −7,079 0 owned after | $1.48 exercise price | 2025-06-20 | |
| 2025-06-20 | Stultz Katherine V Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $0.95 exercise price | 2025-06-20 | |
| 2025-06-20 | DANSEY ROGER D Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −68,000 0 owned after | $1.28 exercise price | 2025-06-20 | |
| 2025-06-20 | DANSEY ROGER D Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −5,868 0 owned after | $1.48 exercise price | 2025-06-20 | |
| 2025-06-20 | DANSEY ROGER D Director | 4 | Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −34,000 0 owned after | $0.95 exercise price | 2025-06-20 | |
| 2025-06-20 | KNOBELMAN DEBORAH Officer (President & Interim CEO) | 4 | Employee Stock Option (Right to Buy) Derivative · Direct | D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | −246,390 0 owned after | $0.75 exercise price | 2025-06-20 |