Arkolith/Insider Trading/MCRB/Form 4

Henn Matthew R

See RemarksSeres Therapeutics, Inc. (MCRB) · full profile →Form 4 · filed Aug 19, 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
Aug 18, 2025Sell(S)73$16.65$1K5K
Aug 15, 2025Option exercise(M)97——5K
Aug 15, 2025Option exercise(M)141——5K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Aug 15, 2025Option exercise(M)97—$0976
Aug 15, 2025Option exercise(M)141—$0844

Transaction Codes

S
Open-market sale
M
Option exercise / conversion

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000950170-25-110090) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML