Ronald Silver - 05 Jan 2026 Form 4 Insider Report for IRONWOOD PHARMACEUTICALS INC (IRWD)

Signature
/s/ Amir Vitale, Attorney-in-Fact
Issuer symbol
IRWD
Transactions as of
05 Jan 2026
Net transactions value
-$162,914
Form type
4
Filing time
07 Jan 2026, 16:05:09 UTC
Previous filing
13 Aug 2025
Next filing
25 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Silver Ronald Principal Accounting Officer C/O IRONWOOD PHARMACEUTICALS, INC., 100 SUMMER STREET, SUITE 2300, BOSTON /s/ Amir Vitale, Attorney-in-Fact 07 Jan 2026 0001873731

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IRWD Class A Common Stock Sale $162,914 -35,416 -11% $4.60 276,809 05 Jan 2026 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.
F2 The reporting person acquired 35,416 shares of Class A Common Stock under the issuer's employee stock purchase plan on December 31, 2025.