Ian Sheffield
CIK: 0001594410
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (4 total)
- Aug 31, 2026IVVD
Invivyd, Inc.
Award(A)DirectStock Option (Right to Buy)
100K shares- - Jun 10, 2026GUTS
FRACTYL HEALTH, INC.
Purchase(P)Direct35K shares at avg. $0.73$26K - Jun 10, 2026GUTS
FRACTYL HEALTH, INC.
Award(A)DirectStock Option
22.5K shares- - Sep 2, 2025GUTS
FRACTYL HEALTH, INC.
Award(A)DirectStock Option
45K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 31, 2026 |  IVVD Invivyd, Inc. | Award(A) Stock Option (Right to Buy) | 100,000 | - | - | Direct |
| Jun 10, 2026 |  GUTS FRACTYL HEALTH, INC. | Purchase(P) | 35,000 | $0.73 | $25,529 | Direct |
| Jun 10, 2026 | GUTS FRACTYL HEALTH, INC. | Award(A) Stock Option | 22,500 | - | - | Direct |
| Sep 2, 2025 | GUTS FRACTYL HEALTH, INC. | Award(A) Stock Option | 45,000 | - | - | Direct |
1-4 of 4 transactions
About Sheffield Ian
Sheffield Ian (SEC CIK 0001594410) files insider reports with the SEC as Director of Invivyd, Inc. (IVVD) and Director of FRACTYL HEALTH, INC. (GUTS).
Signal8 holds 5 ownership filings by Sheffield Ian (2 Form 3, 3 Form 4), filed between Sep 4, 2025 and Sep 2, 2026. Those filings report 4 transactions, from Sep 2, 2025 to Aug 31, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Sheffield Ian's filings is in NEW HAVEN, CT.
Recent filings by Sheffield Ian
Other insiders filing for Invivyd, Inc. (IVVD)
- Elia Marc, Chief Executive Officer
- Lee Timothy Edward, Chief Commercial Officer
- Green Julie, Chief Human Resources Officer
- Duke William E., Chief Financial Officer
- Andersen Jill, Chief Legal Officer, Secretary
- Allen Robert D. III, Chief Scientific Officer