Arkolith/Insider Trading/MCRB/Form 4

DesRosier Thomas

See RemarksSeres Therapeutics, Inc. (MCRB) · full profile →Form 4 · filed May 19, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$595
Net Open-Market Flow
-$595
Transactions
4
2 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
May 18, 2026Sell(S)79$7.53$5958K
May 15, 2026Option exercise(M)244——8K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
May 15, 2026Option exercise(M)133—$0398
May 15, 2026Option exercise(M)111—$0779

Transaction Codes

S
Open-market sale
M
Option exercise / conversion

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001193125-26-230728) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML

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