Arkolith/Insider Trading/ETNB/Form 4

Sarena Francis Willard

Chief Operating Officer89bio, Inc. (ETNB) · full profile →Form 4 · filed Oct 30, 2025
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
3
1 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Oct 30, 2025Tender(U)75K——0

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Oct 30, 2025Disposed to issuer(D)350K—$00
Oct 30, 2025Disposed to issuer(D)215K—$00

Transaction Codes

U
See SEC Form 4 code table
D
Disposition to the issuer

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001193125-25-259037) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML