Kelly Brady

CIK: 0002117686

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)2 (33.3%)

Position reduction

Option Exercises (M)2 (33.3%)

Derivative conversions

Awards (A)2 (33.3%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MCRB

Seres Therapeutics, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (6 total)

MCRB
Seres Therapeutics, Inc.
Aug 17, 2026
Sale(S)
Direct
64 shares at avg. $4.55$291.2
MCRB
Seres Therapeutics, Inc.
Aug 15, 2026
Exercise(M)
Direct
181 shares-
MCRB
Seres Therapeutics, Inc.
Jul 8, 2026
Award(A)
Stock Option (right to buy)
Direct
18.8K shares-
MCRB
Seres Therapeutics, Inc.
May 18, 2026
Sale(S)
Direct
59 shares at avg. $7.53$444.27
MCRB
Seres Therapeutics, Inc.
May 15, 2026
Exercise(M)
Direct
180 shares-
MCRB
Seres Therapeutics, Inc.
Mar 4, 2026
Award(A)
Stock Option (right to buy)
Direct
56.3K shares-

		Type	Shares	Price		Ownership
Aug 17, 2026	MCRB Seres Therapeutics, Inc.	Sale(S)	64	$4.55	$291	Direct
Aug 15, 2026	MCRB Seres Therapeutics, Inc.	Exercise(M)	181	-	$0	Direct
Jul 8, 2026	MCRB Seres Therapeutics, Inc.	Award(A) Stock Option (right to buy)	18,750	-	-	Direct
May 18, 2026	MCRB Seres Therapeutics, Inc.	Sale(S)	59	$7.53	$444	Direct
May 15, 2026	MCRB Seres Therapeutics, Inc.	Exercise(M)	180	-	$0	Direct
Mar 4, 2026	MCRB Seres Therapeutics, Inc.	Award(A) Stock Option (right to buy)	56,250	-	-	Direct

1-6 of 6 transactions

About Brady Kelly

Brady Kelly (SEC CIK 0002117686) files insider reports with the SEC as Officer of Seres Therapeutics, Inc. (MCRB).

Signal8 holds 5 ownership filings by Brady Kelly (1 Form 3, 4 Form 4), filed between Mar 11, 2026 and Aug 18, 2026. Those filings report 6 transactions, from Mar 4, 2026 to Aug 17, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Brady Kelly's filings is in CAMBRIDGE, MA.

Recent filings by Brady Kelly

Aug 17, 2026: Open-market sale of MCRB shares (Form 4, code S).
Aug 15, 2026: Option exercise of MCRB shares (Form 4, code M).
Jul 8, 2026: Grant or award of MCRB derivative securities (Form 4, code A).
May 18, 2026: Open-market sale of MCRB shares (Form 4, code S).
May 15, 2026: Option exercise of MCRB shares (Form 4, code M).

Other insiders filing for Seres Therapeutics, Inc. (MCRB)

How to read Form 4 transaction codes