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C

Cherry Brian N

Open-market buys

1

$1000K total

Open-market sells

0

$0 total

Tracking since

Sep 2026

Activity timeline

Open-market buy — $1000K

Atara Biotherapeutics, Inc. · Sep 4, 2026

Open-market trades from the last two years.

Holdings as last reported

166,486 Common Stock in ATRA

Held directly · as of 2026-09-04

23,000 Stock Option (Right to Buy) in ZYME

Held directly · as of 2026-01-12

Companies touched

Atara Biotherapeutics, Inc.