DESROSIER THOMAS (See Remarks) sold 1.0% of their position (82.00 shares) of SERES THERAPEUTICS, INC. on the open market
Open‑market sale worth $373.10 — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 1 sale
Filed: 8/18/2026ACC: 0001193125-26-355712
Officer· See Remarks
Since Mar 2026
-82.00
Net shares
Net seller
$373.10
Total sold
1
Open market trades
0B · 1S
4
Total transactions
245.00 acquired · 327.00 disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
+245.00
Price / share
—
Trade value
—
% of position
3.1%
8/15/2026
7.95K→8.20K
Common Stock
Direct
Shares
−82.00
Price / share
$4.55
Trade value
$373.10
% of position
1.0%
8/17/2026
8.20K→8.12K
Total
Net shares
+163.00
Net value
-$373.10
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 8/15/2026 | M · Option Exercise | +245.00 | — | — | 3.1% | 7.95K | 8.20K |
| Common Stock Direct | 8/17/2026 | S · Sale | −82.00 | $4.55 | $373.10 | 1.0% | 8.20K | 8.12K |
| Total | +163.00 | -$373.10 | ||||||
Derivative Transactions2
Restricted Stock Units
Direct
Converts to
Common Stock
133.00 shares
Shares
−133.00
Strike price
Held after
265.00
Exercisable
—
8/15/2026
Restricted Stock Units
Direct
Converts to
Common Stock
112.00 shares
Shares
−112.00
Strike price
Held after
667.00
Exercisable
—
8/15/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Restricted Stock Units Direct | Common Stock133.00 shares | 8/15/2026 | M · Option Exercise | −133.00 | — | 265.00 | |
| Restricted Stock Units Direct | Common Stock112.00 shares | 8/15/2026 | M · Option Exercise | −112.00 | — | 667.00 |