Sutro Biopharma Inc.

Last updated September 27, 2026

Organization details

Legal name
Sutro Biopharma Inc.
Former names
Fundamental Applied Biology Inc
Ownership
Public
Status
Active
SIC code
2836 — Biological Products, (No Diagnostic Substances)
Headquarters city
South SAN Francisco
Headquarters state / province
California
Headquarters country
United States
Fiscal year end
December
Ticker symbol
STRO
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0001382101
EIN
45-2441988

Board of directors

Chief executives

Dates unknown
Jane Chung · Chief Executive Officer
Dates unknown

Director election results

Annual meeting of June 5, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

3 of this board's directors also sit on 7 other boards.

Network of Sutro Biopharma Inc.'s board connections Artelo Biosciences Inc. Artelo Biosciences Inc... Collegium Pharmaceutical Inc. Collegium Pharmaceutic... Halozyme Therapeutics Inc. Halozyme Therapeutics... Kalaris Therapeutics Inc. Kalaris Therapeutics I... Nkarta Inc. Nkarta Inc. SI-BONE Inc. SI-BONE Inc. SpyGlass Pharma Inc. SpyGlass Pharma Inc. Connie Matsui Connie Matsui John Gordon Freund John Gordon Freund Michael Dybbs Michael Dybbs Sutro Biopharma Inc.
Shared director Other board Same sector

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$89,601
5 purchases by 5 insiders
Sold, last 12 months
$0
0 sales by 0 insiders
Date Insider Transaction Shares Price Value
Sep 18, 2026 Gerber Hans-Peter Officer (CHIEF SCIENTIFIC OFFICER) Option exercise +3,750 — —
Sep 18, 2026 Gerber Hans-Peter Officer (CHIEF SCIENTIFIC OFFICER) Shares withheld for tax −1,345 $15.34 $20,632
Jun 2, 2026 Chow Gregory K. Officer (CFO) Option exercise +2,500 — —
Mar 4, 2026 Pauling David Officer (Chief Admin. Ofcr. & GC) Option exercise +675 — —
Mar 4, 2026 Jane Chung Director, Officer (Chief Executive Officer) Option exercise +788 — —
Mar 4, 2026 Pauling David Officer (Chief Admin. Ofcr. & GC) Shares withheld for tax −277 $21.31 $5,903
Mar 4, 2026 Jane Chung Director, Officer (Chief Executive Officer) Shares withheld for tax −282 $21.31 $6,009
Mar 2, 2026 Gerber Hans-Peter Officer (CHIEF SCIENTIFIC OFFICER) Option exercise +2,843 — —
Mar 2, 2026 Pauling David Officer (Chief Admin. Ofcr. & GC) Option exercise +2,356 — —
Mar 2, 2026 Gerber Hans-Peter Officer (CHIEF SCIENTIFIC OFFICER) Shares withheld for tax −1,170 $20.55 $24,044
Mar 2, 2026 Jane Chung Director, Officer (Chief Executive Officer) Option exercise +7,750 — —
Mar 2, 2026 Pauling David Officer (Chief Admin. Ofcr. & GC) Shares withheld for tax −970 $20.55 $19,934
Mar 2, 2026 Jane Chung Director, Officer (Chief Executive Officer) Shares withheld for tax −2,779 $20.55 $57,108
Mar 1, 2026 Pauling David Officer (Chief Admin. Ofcr. & GC) Option exercise +500 — —
Mar 1, 2026 Gerber Hans-Peter Officer (CHIEF SCIENTIFIC OFFICER) Option exercise +1,125 — —

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