Frazier Life Sciences XI, L.P.

ATTO

Frazier Life Sciences XI, L.P. serves as 10 percent owner at ATTO (ATTO). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

1 trades

$10.00M

Total Sells

0 trades

$0.00

Net Position

Net Buyer

$10.00M

Companies Traded

ATTO

Active Period

Aug 2026

1 total trades

Most Recent

Buy ATTO

Aug 6, 2026 · $10.00M

Frazier Life Sciences XI, L.P.'s Insider Trading at ATTO (ATTO)

Buys

1 · $10.00M

Sells

0 · $0.00

Total Shares Bought

588,235

Total Shares Sold

ATTO Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Aug 6, 2026	Buy	588,235	$17.00	$10.00M	6,154,213

Related Insiders

GOLDMAN SACHS GROUP INC

other: Former 10% Owner

ATTOBuy · Aug 13, 2026

WALSH COLIN

director

ATTOSell · Aug 13, 2026

venBio Global Strategic Fund IV, L.P.

10 percent owner

ATTOBuy · Aug 10, 2026

Redmile Group, LLC

10 percent owner

ATTOBuy · Aug 7, 2026

Sanofi

10 percent owner

ATTOBuy · Aug 7, 2026

Explore More Insider Trading Data

ATTO Insider Trading Activity

View all insider trades at ATTO

Latest Insider Buys

Most recent insider purchases across all stocks

CEO Stock Purchases

Track CEO buying activity