O'Brien Stephanie Monaghan
SEC insider (Form 3/4/5 filer). CIK 0001720907. Director at Apellis Pharmaceuticals, Inc. (APLS). 10 reported Form 4/5 transactions since Sep 2024; latest on May 14, 2026. Located in WALTHAM, MA.
Companies O'Brien Stephanie Monaghan has filed insider reports for
- Apellis Pharmaceuticals, Inc. (APLS): Director
O'Brien Stephanie Monaghan
CIK: 0001720907
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Apellis Pharmaceuticals, Inc.
Discretionary Trading P&L
Holdings
Transaction History (10 total)
- May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DispositionDirect3.9K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DispositionDirect3.5K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
Tender OfferDirect25.7K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
Tender OfferIndirect5.8K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DispositionDirect3.1K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DispositionDirect5.7K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DispositionDirect8K shares- - Apr 6, 2026APLS
Apellis Pharmaceuticals, Inc.
OtherIndirect5.8K shares- - Jan 1, 2026APLS
Apellis Pharmaceuticals, Inc.
AwardDirect8K shares- - Jan 1, 2025APLS
Apellis Pharmaceuticals, Inc.
AwardDirect6.3K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Disposition | 3,877 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Disposition | 3,544 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Tender Offer | 25,666 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Tender Offer | 5,750 | - | $0 | Indirect |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Disposition | 3,062 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Disposition | 5,744 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Disposition | 7,961 | - | $0 | Direct |
| Apr 6, 2026 | APLS Apellis Pharmaceuticals, Inc. | Other | 5,750 | - | $0 | Indirect |
| Jan 1, 2026 | APLS Apellis Pharmaceuticals, Inc. | Award | 7,961 | - | $0 | Direct |
| Jan 1, 2025 | APLS Apellis Pharmaceuticals, Inc. | Award | 6,267 | - | $0 | Direct |
1-10 of 10 transactions