Arkolith/Insider Trading/MCRB/Form 4

Henn Matthew R

See RemarksSeres Therapeutics, Inc. (MCRB) · full profile →Form 4 · filed Feb 18, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$754
Net Open-Market Flow
-$754
Transactions
4
2 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Feb 15, 2026Option exercise(M)239——8K
Feb 15, 2026Sell(S)89$8.47$7548K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Feb 15, 2026Option exercise(M)141—$0563
Feb 15, 2026Option exercise(M)98—$0780

Transaction Codes

M
Option exercise / conversion
S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001193125-26-057153) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML