NEWELL WILLIAM J

STRO

NEWELL WILLIAM J serves as CEO at Sutro Biopharma, Inc. (STRO). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

1 trades

$77.5K

Total Sells

3 trades

$65.0K

Net Position

Net Buyer

$12.5K

Companies Traded

STRO

Active Period

Mar 2022 – Mar 2025

4 total trades

Most Recent

Sell STRO

Mar 5, 2025 · $9.1K

NEWELL WILLIAM J's Insider Trading at Sutro Biopharma, Inc. (STRO)

Buys

1 · $77.5K

Sells

3 · $65.0K

Total Shares Bought

10,000

Total Shares Sold

43,047

STRO Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Mar 5, 2025	Sell	6,708	$1.36	$9.1K	0
Mar 4, 2025	Sell	11,136	$1.42	$15.8K	0
Mar 1, 2025	Sell	25,203	$1.59	$40.1K	0
Mar 15, 2022	Buy	10,000	$7.75	$77.5K	116,525

Related Insiders

Jane Chung

Chief Executive Officer

STROSell · Dec 12, 2025

Gregory K. Chow

CFO

STROBuy · Oct 15, 2025

Hans-Peter Gerber

CHIEF SCIENTIFIC OFFICER

STROBuy · Oct 15, 2025

MATSUI CONNIE

Director

STROBuy · Oct 15, 2025

David Pauling

Chief Admin. Ofcr. & GC

STROBuy · Oct 15, 2025

Barbara Leyman

Chief Business Officer

STROSell · Jul 8, 2025

Explore More Insider Trading Data

STRO Insider Trading Activity

View all insider trades at Sutro Biopharma, Inc.

Healthcare Sector Insider Trades

See insider activity across healthcare stocks

Latest Insider Buys

Most recent insider purchases across all stocks

CEO Stock Purchases

Track CEO buying activity