Arkolith/Insider Trading/TRML/Form 4

Middlekauff W Bradford

CBO, GC and SecretaryTourmaline Bio, Inc. (TRML) · full profile →Form 4 · filed Oct 28, 2025
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
5
2 non-derivative · 3 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Oct 28, 2025Tender(U)61K——8K
Oct 28, 2025Disposed to issuer(D)8K——0

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Oct 28, 2025Disposed to issuer(D)125K——0
Oct 28, 2025Disposed to issuer(D)47K——0
Oct 28, 2025Disposed to issuer(D)58K——0

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 0001214501-25-000004) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML