DeLong Mark Jeffrey
SEC insider (Form 3/4/5 filer). CIK 0001856078. Chief Business & Strat Officer at Apellis Pharmaceuticals, Inc. (APLS). 25 reported Form 4/5 transactions since Sep 2024; latest on May 14, 2026. Located in WALTHAM, MA.
Companies DeLong Mark Jeffrey has filed insider reports for
- Apellis Pharmaceuticals, Inc. (APLS): Officer, Chief Business & Strat Officer
DeLong Mark Jeffrey
CIK: 0001856078
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 (25 total)
- May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
Tender OfferDirect114.6K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
AwardDirect41.3K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DispositionDirect41.3K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
AwardDirect19K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DispositionDirect19K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
AwardDirect36.6K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DispositionDirect36.6K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
AwardDirect18.3K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DispositionDirect18.3K shares- - May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DispositionDirect36.6K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Tender Offer | 114,591 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Award | 41,250 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Disposition | 41,250 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Award | 19,006 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Disposition | 19,006 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Award | 36,606 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Disposition | 36,606 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Award | 18,303 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Disposition | 18,303 | - | $0 | Direct |
| May 14, 2026 | APLS Apellis Pharmaceuticals, Inc. | Disposition | 36,606 | - | $0 | Direct |
1-10 of 25 transactions