Executive and director filing history, acquisition and disposal balance, executive concentration, cadence, and stored market context.
Symbol
ATRALatest filing 22 Jul 2026
Company Read
Net acquisition
ATRA has 13 stored insider filings.
Acquisitions account for 46.2% of classified filings and disposals account for 53.8%.
The largest stored filing is $4.7M from ECOR1, CAPITAL, LLC.
Latest filing
22 Jul 2026most recent stored row
Largest filing
$4.7Mreported transaction value
Total filings
13stored transaction rows
Acquisition value
$4.7M6 acquisitions
Disposal value
$3.2M7 disposals
Net value
$1.5Macquisitions minus disposals
Filing cadence
Last 12 active months
May 20264
Jun 20264
Jul 20265
Acquisitions 46.2% · Disposals 53.8%
May 2026$8.0M
Jun 2026$0
Jul 2026$0
Executive concentration
By filing count
REDMILE, GROUP, LLCDirector · 5 filings
ECOR1, CAPITAL, LLC10% Owner · 1 filings
PANACEA, INNOVATION LTD10% Owner · 1 filings
NGUYEN, ANHCODirector, President and CEO · 1 filings
Insider filings are context, not a buy or sell instruction. Always consider role, size, timing, compensation, and the wider stock picture.
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