Watson David O - 28 Jan 2026 Form 4 Insider Report for Apellis Pharmaceuticals, Inc. (APLS)

Reporting relationship: General Counsel
Issuer ticker: APLS
Reported as of: 28 Jan 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 30 Jan 2026, 16:06:43 UTC
Prior SEC filing: 23 Jan 2026
Next SEC filing: 14 May 2026
Source filing: View source filing
Reporting owner signature: David Watson

Key filing fact

Watson David O filed Form 4 for Apellis Pharmaceuticals, Inc. (APLS) on 30 Jan 2026.

Key facts

This page summarizes Watson David O's Form 4 filing for Apellis Pharmaceuticals, Inc. (APLS).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 30 Jan 2026, 16:06.

Change

Previous filing in this sequence was filed on 23 Jan 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001657719 Primary reporting owner

Watson David O.

Relationship: General Counsel
Address: C/O APELLIS PHARMACEUTICALS, INC, 100 FIFTH AVENUE, 3RD FLOOR, WALTHAM
Signature: David Watson
Signature date: 30 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

APLS transaction

Common Stock

Award

Transaction value: $0
Shares: +55,986
Change %: +63%
Price: $0.000000
Shares after: 144,517
Date: 28 Jan 2026
Ownership: Direct
Footnotes: F1

APLS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 10,000
Date: 28 Jan 2026
Ownership: Indirect Owner (Custodial Account for minor children)
Footnotes: F2

APLS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 50,136
Date: 28 Jan 2026
Ownership: Indirect Owner (The David O. Watson Irrevocable Trust of 2023)
Footnotes: F3

APLS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 0
Date: 28 Jan 2026
Ownership: Indirect Owner (The Watson Education Trust)
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

This represents a Restricted Stock Unit award granted on January 28, 2026 that vest 25% annually over four years from grant date subject to continued service.

Footnote F2

This represents a custodial account held by the reporting person for the sole benefit of his minor children.

Footnote 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.

Footnote F4

The securities are held by The Watson Education Trust (the "Trust"), for which the reporting person serves as trustee. The reporting person disclaims beneficial ownership over the shares held by the Trust except to the extent of his pecuniary interest therein.