MCGIRR DAVID W J
SEC insider (Form 3/4/5 filer). CIK 0001219023. Director at RHYTHM PHARMACEUTICALS, INC. (RYTM) and 2 other issuers. 15 reported Form 4/5 transactions since Sep 2024; latest on Jun 24, 2026. Located in BOSTON, MA.
Companies MCGIRR DAVID W J has filed insider reports for
- RHYTHM PHARMACEUTICALS, INC. (RYTM): Director
- INSMED Inc (INSM): Director
- X4 Pharmaceuticals, Inc (XFOR): Director
MCGIRR DAVID W J
CIK: 0001219023
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 (15 total)
- Jun 24, 2026RYTM
RHYTHM PHARMACEUTICALS, INC.
AwardDirectRestricted Stock Units
2.3K shares- - Jun 24, 2026RYTM
RHYTHM PHARMACEUTICALS, INC.
AwardDirectStock Option (right to buy)
3.7K shares- - Jun 23, 2026RYTM
RHYTHM PHARMACEUTICALS, INC.
ExerciseDirect4.7K shares- - Feb 9, 2026INSM
INSMED Inc
GiftIndirect53.4K shares- - Feb 9, 2026INSM
INSMED Inc
GiftDirect53.4K shares- - Jun 24, 2025RYTM
RHYTHM PHARMACEUTICALS, INC.
AwardDirectStock Option (right to buy)
7K shares- - Jun 24, 2025RYTM
RHYTHM PHARMACEUTICALS, INC.
AwardDirectRestricted Stock Units
4.7K shares- - Jun 18, 2025RYTM
RHYTHM PHARMACEUTICALS, INC.
ExerciseDirect4K shares- - Jun 9, 2025XFOR
X4 Pharmaceuticals, Inc
AwardDirect1.5K shares- - Jun 4, 2025INSM
INSMED Inc
SaleDirect3K shares at avg. $73.27$220K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 24, 2026 |  RYTM RHYTHM PHARMACEUTICALS, INC. | Award Restricted Stock Units | 2,324 | - | - | Direct |
| Jun 24, 2026 | RYTM RHYTHM PHARMACEUTICALS, INC. | Award Stock Option (right to buy) | 3,691 | - | - | Direct |
| Jun 23, 2026 | RYTM RHYTHM PHARMACEUTICALS, INC. | Exercise | 4,712 | - | $0 | Direct |
| Feb 9, 2026 |  INSM INSMED Inc | Gift | 53,400 | - | $0 | Indirect |
| Feb 9, 2026 | INSM INSMED Inc | Gift | 53,400 | - | $0 | Direct |
| Jun 24, 2025 | RYTM RHYTHM PHARMACEUTICALS, INC. | Award Stock Option (right to buy) | 7,037 | - | - | Direct |
| Jun 24, 2025 | RYTM RHYTHM PHARMACEUTICALS, INC. | Award Restricted Stock Units | 4,712 | - | - | Direct |
| Jun 18, 2025 | RYTM RHYTHM PHARMACEUTICALS, INC. | Exercise | 4,000 | - | - | Direct |
| Jun 9, 2025 |  XFOR X4 Pharmaceuticals, Inc | Award | 1,500 | - | - | Direct |
| Jun 4, 2025 | INSM INSMED Inc | Sale | 3,000 | $73.27 | $219,810 | Direct |
1-10 of 15 transactions