YOUNG TERESA L.

PrivateCIK: 1814656
Location

HOUSTON, TX

YOUNG TERESA L. (See Remarks) sold 11.0% of their position (1.04K shares) of SERES THERAPEUTICS, INC. on the open market

Open‑market sale worth $18.0K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderYOUNG TERESA L.CIK 1814656
IssuerSERES THERAPEUTICS, INC.CIK 1609809
Officer· See Remarks
Since Jun 2020
-1.04K
Net shares
Net seller
$18.0K
Total sold
1
Open market trades
0B · 1S
7
Total transactions
4.23K acquired · 5.27K disposed
Non-Derivative Transactions4

Common Stock

Direct
M · Option Exercise

Shares

+4K

Price / share

Trade value

% of position

76.7%
11/15/2025
5.21K9.21K

Common Stock

Direct
M · Option Exercise

Shares

+132.00

Price / share

Trade value

% of position

1.4%
11/15/2025
9.21K9.35K

Common Stock

Direct
M · Option Exercise

Shares

+98.00

Price / share

Trade value

% of position

1.0%
11/15/2025
9.35K9.44K

Common Stock

Direct
S · Sale

Shares

1.04K

Price / share

$17.30

Trade value

$18.03K

% of position

11.0%
11/15/2025
9.44K8.40K
Total

Net shares

+3.19K

Net value

-$18.03K

Derivative Transactions3

Restricted Stock Units

Direct
M · Option Exercise
Converts to

Common Stock

4K shares

Shares

4K

Strike price

Held after

0.00

Exercisable

11/15/2025

Restricted Stock Units

Direct
M · Option Exercise
Converts to

Common Stock

132.00 shares

Shares

132.00

Strike price

Held after

664.00

Exercisable

11/15/2025

Restricted Stock Units

Direct
M · Option Exercise
Converts to

Common Stock

98.00 shares

Shares

98.00

Strike price

Held after

878.00

Exercisable

11/15/2025
YOUNG TERESA L. — Insider Transaction (Form 4) Filed Nov 18, 2025 | Finecho