Arkolith/Insider Trading/MCRB/Form 4

Shaff Eric D.

DirectorSeres Therapeutics, Inc. (MCRB) · full profile →Form 4 · filed Aug 19, 2025
Net Selling
Open-Market Buys
$0
Open-Market Sells
$4K
Net Open-Market Flow
-$4K
Transactions
5
3 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Aug 18, 2025Sell(S)217$16.65$4K11K
Aug 15, 2025Option exercise(M)333——11K
Aug 15, 2025Option exercise(M)391——10K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Aug 15, 2025Option exercise(M)333—$03K
Aug 15, 2025Option exercise(M)391—$02K

Transaction Codes

S
Open-market sale
M
Option exercise / conversion

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000950170-25-110096) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML