Timothy Eugene Sullivan - 21 Oct 2025 Form 4 Insider Report for Apellis Pharmaceuticals, Inc. (APLS)

Signature
/s/ David Watson, attorney-in-fact for Timothy Sullivan
Issuer symbol
APLS
Transactions as of
21 Oct 2025
Net transactions value
-$180,000
Form type
4
Filing time
23 Oct 2025, 16:20:30 UTC
Previous filing
10 Sep 2025
Next filing
15 Jan 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Sullivan Timothy Eugene Chief Financial Officer C/O APELLIS PHARMACEUTICALS, INC., 100 FIFTH AVENUE, 3RD FLOOR, WALTHAM /s/ David Watson, attorney-in-fact for Timothy Sullivan 23 Oct 2025 0001707000

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction APLS Common Stock Options Exercise $100,300 +10,000 +9% $10.03 120,936 21 Oct 2025 Direct F1
transaction APLS Common Stock Sale $280,300 -10,000 -8.3% $28.03 110,936 21 Oct 2025 Direct F1
holding APLS Common Stock 60,396 21 Oct 2025 The Timothy E Sullivan Irrevocable Trust of 2023 F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction APLS Stock Option (Right to Buy) Options Exercise $0 -10,000 -4.1% $0.000000 232,903 21 Oct 2025 Common Stock 10,000 $10.03 Direct F1, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 This is a scheduled exercise & sale from 10b5-1 trading plan dated June 9, 2025.
F2 The securities are held by The Timothy E Sullivan Irrevocable Trust of 2023. Patrick O. Collins is the trustee of The Timothy E Sullivan Irrevocable Trust of 2023. The reporting person disclaims beneficial ownership over the shares held by The Timothy E Sullivan Irrevocable Trust of 2023 except to the extent of his pecuniary interest therein.
F3 This option was granted on October 18, 2017 and fully vested.