Arkolith/Insider Trading/ATRA/Form 4

Nguyen AnhCo

President and CEO, DirectorAtara Biotherapeutics, Inc. (ATRA) · full profile →Form 4 · filed Mar 4, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$15K
Net Open-Market Flow
-$15K
Transactions
4
4 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Mar 2, 2026Sell(S)58$5.08$29565K
Mar 2, 2026Sell(S)1K$5.09$7K63K
Mar 2, 2026Sell(S)198$5.08$1K65K
Mar 2, 2026Sell(S)1K$5.09$7K62K

Transaction Codes

S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000905148-26-001143) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML