NELSEN ROBERT
SEC insider (Form 3/4/5 filer). CIK 0001219042. Director & 10% Owner at CITY THERAPEUTICS, INC. (CTY) and 2 other issuers. 14 reported Form 4/5 transactions since Sep 2024; latest on Oct 19, 2026. Located in CAMBRIDGE, MA.
Companies NELSEN ROBERT has filed insider reports for
- CITY THERAPEUTICS, INC. (CTY): Director, 10% Owner
- Prime Medicine, Inc. (PRME): Director, 10% Owner
- Sana Biotechnology, Inc. (SANA): Director, 10% Owner
NELSEN ROBERT
CIK: 0001219042
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 (14 total)
- Oct 19, 2026CTY
CITY THERAPEUTICS, INC.
PurchaseIndirect170K shares at avg. $18.00$3.1M - Oct 19, 2026CTY
CITY THERAPEUTICS, INC.
ConversionIndirect2M shares- - Oct 19, 2026CTY
CITY THERAPEUTICS, INC.
ConversionIndirect5.5M shares- - Oct 19, 2026CTY
CITY THERAPEUTICS, INC.
ConversionIndirect3.3M shares- - Oct 15, 2026CTY
CITY THERAPEUTICS, INC.
AwardDirectStock Option (Right to Buy)
22.6K shares- - Jun 5, 2026PRME
Prime Medicine, Inc.
AwardDirectStock Option (right to buy)
75K shares- - Jun 4, 2026SANA
Sana Biotechnology, Inc.
AwardDirectStock Option (Right to Buy)
90K shares- - Aug 1, 2025PRME
Prime Medicine, Inc.
DispositionDirectStock Option (right to buy)
45K shares- - Aug 1, 2025PRME
Prime Medicine, Inc.
DispositionDirectStock Option (right to buy)
39.1K shares- - Aug 1, 2025PRME
Prime Medicine, Inc.
AwardDirectStock Option (right to buy)
39.1K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 19, 2026 |  CTY CITY THERAPEUTICS, INC. | Purchase | 170,000 | $18.00 | $3,060,000 | Indirect |
| Oct 19, 2026 | CTY CITY THERAPEUTICS, INC. | Conversion | 2,027,006 | - | $0 | Indirect |
| Oct 19, 2026 | CTY CITY THERAPEUTICS, INC. | Conversion | 5,482,309 | - | $0 | Indirect |
| Oct 19, 2026 | CTY CITY THERAPEUTICS, INC. | Conversion | 3,294,900 | - | $0 | Indirect |
| Oct 15, 2026 | CTY CITY THERAPEUTICS, INC. | Award Stock Option (Right to Buy) | 22,649 | - | - | Direct |
| Jun 5, 2026 |  PRME Prime Medicine, Inc. | Award Stock Option (right to buy) | 75,000 | - | - | Direct |
| Jun 4, 2026 |  SANA Sana Biotechnology, Inc. | Award Stock Option (Right to Buy) | 90,000 | - | - | Direct |
| Aug 1, 2025 | PRME Prime Medicine, Inc. | Disposition Stock Option (right to buy) | 45,000 | - | - | Direct |
| Aug 1, 2025 | PRME Prime Medicine, Inc. | Disposition Stock Option (right to buy) | 39,062 | - | - | Direct |
| Aug 1, 2025 | PRME Prime Medicine, Inc. | Award Stock Option (right to buy) | 39,062 | - | - | Direct |
1-10 of 14 transactions