Arkolith/Insider Trading/MCRB/Form 4

DesRosier Thomas

See RemarksSeres Therapeutics, Inc. (MCRB) · full profile →Form 4 · filed Nov 18, 2025
Net Selling
Open-Market Buys
$0
Open-Market Sells
$1K
Net Open-Market Flow
-$1K
Transactions
5
3 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Nov 15, 2025Option exercise(M)132——8K
Nov 15, 2025Option exercise(M)112——8K
Nov 15, 2025Sell(S)76$17.30$1K8K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Nov 15, 2025Option exercise(M)112—$01K
Nov 15, 2025Option exercise(M)132—$0664

Transaction Codes

M
Option exercise / conversion
S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001193125-25-286240) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML