Key facts
- This page summarizes William H. Rastetter's Form 4 filing for Iambic Therapeutics, Inc. (IAM).
- 1 reported transaction and 1 derivative row are listed below.
- Accepted by SEC: 16 Oct 2026, 16:21.
William H. Rastetter - 14 Oct 2026 Form 4 Insider Report for Iambic Therapeutics, Inc. (IAM)
- Reporting relationship
- Director, Chairperson of the Board
- Issuer ticker
- IAM
- Reported as of
- 14 Oct 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 16 Oct 2026, 16:21:05 UTC
- Prior SEC filing
- 02 Jul 2026
- Next SEC filing
- 19 Oct 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Sunny Chang, by power of attorney
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Filing notes and source
Key filing fact
William H. Rastetter filed Form 4 for Iambic Therapeutics, Inc. (IAM) on 16 Oct 2026.
Change
- Previous filing in this sequence was filed on 02 Jul 2026.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001205903
Primary reporting owner
RASTETTER WILLIAM H
- Relationship
- Director, Chairperson of the Board
- Address
- C/O IAMBIC THERAPEUTICS, INC., 5627 OBERLIN DRIVE, SUITE 120, SAN DIEGO
- Signature
- /s/ Sunny Chang, by power of attorney
- Signature date
- 16 Oct 2026
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
IAM
transaction
Derivative
Stock Option (right to buy)
Award
- Transaction value
- Shares
- +40,600
- Change %
- Price
- $0.000000*
- Shares after
- 40,600
- Date
- 14 Oct 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 40,600
- Exercise price
- $16.00
- Footnotes
- F1
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote F1
The shares subject to the option vest in 36 equal monthly installments beginning on November 14, 2026.