Jane Chung
CIK: 0001872398
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
SUTRO BIOPHARMA, INC.
Discretionary Trading P&L
Holdings
Transaction History (23 total)
- Mar 4, 2026STRO
SUTRO BIOPHARMA, INC.
Exercise(M)Direct788 shares- - Mar 4, 2026STRO
SUTRO BIOPHARMA, INC.
Tax Payment(F)Direct282 shares at avg. $21.31$6K - Mar 2, 2026STRO
SUTRO BIOPHARMA, INC.
Award(A)DirectStock Option (right to buy)
175K shares- - Mar 2, 2026STRO
SUTRO BIOPHARMA, INC.
Exercise(M)Direct7.8K shares- - Mar 2, 2026STRO
SUTRO BIOPHARMA, INC.
Tax Payment(F)Direct2.8K shares at avg. $20.55$57K - Mar 2, 2026STRO
SUTRO BIOPHARMA, INC.
Award(A)DirectRestricted Stock Units (RSUs)
40K shares- - Mar 1, 2026STRO
SUTRO BIOPHARMA, INC.
Exercise(M)Direct2.5K shares- - Mar 1, 2026STRO
SUTRO BIOPHARMA, INC.
Tax Payment(F)Direct1.3K shares at avg. $20.47$26K - Mar 1, 2026STRO
SUTRO BIOPHARMA, INC.
Exercise(M)Direct688 shares- - Dec 12, 2025STRO
SUTRO BIOPHARMA, INC.
Tax Payment(F)Direct894 shares at avg. $8.02$7K - Dec 12, 2025STRO
SUTRO BIOPHARMA, INC.
Exercise(M)Direct2.5K shares- - Oct 15, 2025STRO
SUTRO BIOPHARMA, INC.
Purchase(P)Direct12.5K shares at avg. $0.80$10K - Aug 9, 2025STRO
SUTRO BIOPHARMA, INC.
Exercise(M)Direct18.8K shares- - Aug 9, 2025STRO
SUTRO BIOPHARMA, INC.
Tax Payment(F)Direct6.7K shares at avg. $0.80$5K - Apr 4, 2025STRO
SUTRO BIOPHARMA, INC.
Award(A)DirectRestricted Stock Units (RSUs)
310K shares- - Apr 4, 2025STRO
SUTRO BIOPHARMA, INC.
Award(A)DirectStock Option (Right to Buy)
620K shares- - Mar 4, 2025STRO
SUTRO BIOPHARMA, INC.
Tax Payment(F)Direct2.3K shares at avg. $1.42$3K - Mar 4, 2025STRO
SUTRO BIOPHARMA, INC.
Exercise(M)Direct7.9K shares- - Mar 1, 2025STRO
SUTRO BIOPHARMA, INC.
Exercise(M)Direct25K shares- - Mar 1, 2025STRO
SUTRO BIOPHARMA, INC.
Tax Payment(F)Direct9.5K shares at avg. $1.59$15K - Mar 1, 2025STRO
SUTRO BIOPHARMA, INC.
Exercise(M)Direct6.9K shares- - Dec 1, 2024STRO
SUTRO BIOPHARMA, INC.
Exercise(M)Direct25K shares- - Dec 1, 2024STRO
SUTRO BIOPHARMA, INC.
Tax Payment(F)Direct8.9K shares at avg. $2.69$24K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Mar 4, 2026 | STRO SUTRO BIOPHARMA, INC. | Exercise(M) | 788 | - | $0 | Direct |
| Mar 4, 2026 | STRO SUTRO BIOPHARMA, INC. | Tax Payment(F) | 282 | $21.31 | $6,009 | Direct |
| Mar 2, 2026 | STRO SUTRO BIOPHARMA, INC. | Award(A) Stock Option (right to buy) | 175,000 | - | - | Direct |
| Mar 2, 2026 | STRO SUTRO BIOPHARMA, INC. | Exercise(M) | 7,750 | - | $0 | Direct |
| Mar 2, 2026 | STRO SUTRO BIOPHARMA, INC. | Tax Payment(F) | 2,779 | $20.55 | $57,108 | Direct |
| Mar 2, 2026 | STRO SUTRO BIOPHARMA, INC. | Award(A) Restricted Stock Units (RSUs) | 40,000 | - | - | Direct |
| Mar 1, 2026 | STRO SUTRO BIOPHARMA, INC. | Exercise(M) | 2,500 | - | $0 | Direct |
| Mar 1, 2026 | STRO SUTRO BIOPHARMA, INC. | Tax Payment(F) | 1,271 | $20.47 | $26,017 | Direct |
| Mar 1, 2026 | STRO SUTRO BIOPHARMA, INC. | Exercise(M) | 688 | - | $0 | Direct |
| Dec 12, 2025 | STRO SUTRO BIOPHARMA, INC. | Tax Payment(F) | 894 | $8.02 | $7,165 | Direct |
| Dec 12, 2025 | STRO SUTRO BIOPHARMA, INC. | Exercise(M) | 2,500 | - | - | Direct |
| Oct 15, 2025 | STRO SUTRO BIOPHARMA, INC. | Purchase(P) | 12,500 | $0.80 | $10,011 | Direct |
| Aug 9, 2025 | STRO SUTRO BIOPHARMA, INC. | Exercise(M) | 18,750 | - | - | Direct |
| Aug 9, 2025 | STRO SUTRO BIOPHARMA, INC. | Tax Payment(F) | 6,708 | $0.80 | $5,366 | Direct |
| Apr 4, 2025 | STRO SUTRO BIOPHARMA, INC. | Award(A) Restricted Stock Units (RSUs) | 310,000 | - | - | Direct |
| Apr 4, 2025 | STRO SUTRO BIOPHARMA, INC. | Award(A) Stock Option (Right to Buy) | 620,000 | - | - | Direct |
| Mar 4, 2025 | STRO SUTRO BIOPHARMA, INC. | Tax Payment(F) | 2,334 | $1.42 | $3,314 | Direct |
| Mar 4, 2025 | STRO SUTRO BIOPHARMA, INC. | Exercise(M) | 7,875 | - | - | Direct |
| Mar 1, 2025 | STRO SUTRO BIOPHARMA, INC. | Exercise(M) | 25,000 | - | - | Direct |
| Mar 1, 2025 | STRO SUTRO BIOPHARMA, INC. | Tax Payment(F) | 9,450 | $1.59 | $15,026 | Direct |
| Mar 1, 2025 | STRO SUTRO BIOPHARMA, INC. | Exercise(M) | 6,875 | - | - | Direct |
| Dec 1, 2024 | STRO SUTRO BIOPHARMA, INC. | Exercise(M) | 25,000 | - | $0 | Direct |
| Dec 1, 2024 | STRO SUTRO BIOPHARMA, INC. | Tax Payment(F) | 8,920 | $2.69 | $23,995 | Direct |
1-23 of 23 transactions
About Chung Jane
Chung Jane (SEC CIK 0001872398) files insider reports with the SEC as Chief Executive Officer of SUTRO BIOPHARMA, INC. (STRO).
Signal8 holds 9 ownership filings by Chung Jane, all Form 4s, filed between Dec 3, 2024 and Mar 6, 2026. Those filings report 23 transactions, from Dec 1, 2024 to Mar 4, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Chung Jane's filings is in SOUTH SAN FRANCISCO, CA.
Recent filings by Chung Jane
- Mar 4, 2026: Option exercise of STRO shares (Form 4, code M).
- Mar 4, 2026: Tax withholding of STRO shares (Form 4, code F).
- Mar 2, 2026: Grant or award of STRO derivative securities (Form 4, code A).
- Mar 2, 2026: Option exercise of STRO shares (Form 4, code M).
- Mar 2, 2026: Tax withholding of STRO shares (Form 4, code F).
Other insiders filing for SUTRO BIOPHARMA, INC. (STRO)
- Gerber Hans-Peter, CHIEF SCIENTIFIC OFFICER
- Wigginton Jon Marc, Director
- Petree Daniel H, Director
- PANEK JAMES P, Director
- Lobacki Joseph M, Director
- Jagpal Sukhi, Director