David Watson - 17 Nov 2025 Form 4 Insider Report for Apellis Pharmaceuticals, Inc. (APLS)

Signature
David Watson
Issuer symbol
APLS
Transactions as of
17 Nov 2025
Transactions value $
-$100,300
Form type
4
Filing time
18 Nov 2025, 10:05:23 UTC
Previous filing
17 Oct 2025
Next filing
18 Dec 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Watson David O. General Counsel C/O APELLIS PHARMACEUTICALS, INC, 100 FIFTH AVENUE, 3RD FLOOR, WALTHAM David Watson 18 Nov 2025 0001657719

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction APLS Common Stock Sale -$100K -5K -4.4% $20.06 109K 17 Nov 2025 Direct F1
holding APLS Common Stock 10K 17 Nov 2025 Indirect Owner (Custodial Account for minor children) F2
holding APLS Common Stock 50.1K 17 Nov 2025 Indirect Owner (The David O. Watson Irrevocable Trust of 2023) 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 was a scheduled sale from 10B5-1 trading plan dated March 3, 2025.
F2 This represents a custodial account held by the reporting person for the sole benefit of his minor children.
F3 The securities are held by The David O. Watson Irrevocable Trust of 2023. William Zorn is the trustee of The David O. Watson Irrevocable Trust of 2023. The reporting person disclaims beneficial ownership over the shares held by The David O. Watson Irrevocable Trust of 2023 except to the extent of his pecuniary interest therein.