Apellis Pharmaceuticals, Inc.·4

Feb 13, 9:23 AM ET

DeLong Mark Jeffrey 4

4 · Apellis Pharmaceuticals, Inc. · Filed Feb 13, 2026

Research Summary

AI-generated summary of this filing

Updated

Apellis (APLS) Chief Business & Strategy Officer Mark DeLong Sells 368 Shares

What Happened
Mark DeLong, Apellis Pharmaceuticals' Chief Business & Strategy Officer, sold 368 shares on February 11, 2026 at $22.15 per share, for a total of $8,153. The Form 4 reports this as a sale (code S) and the filing notes the shares were sold to cover tax withholding related to restricted stock units released on February 10, 2026. This is a routine sale to satisfy tax obligations rather than a standalone market-timing purchase.

Key Details

  • Transaction date: 2026-02-11; Price: $22.15 per share; Shares sold: 368; Proceeds: $8,153.
  • Filing date / accession: Form 4 filed 2026-02-13 (appears timely for a Form 4).
  • Footnote: Sale was to cover tax withholding on RSUs released Feb 10, 2026 (Footnote F1).
  • Shares owned after transaction: Not specified in the provided summary of the filing.
  • Transaction code: S (sale); footnote code F indicates tax withholding disposition.

Context
This was a tax-withholding sale following the release of RSUs — a common, routine insider transaction that doesn't necessarily indicate a change in the insider's view of the company. The trade size (~$8k) is small relative to typical executive holdings and should be interpreted accordingly.

Insider Transaction Report

Form 4
Period: 2026-02-11
DeLong Mark Jeffrey
Chief Business & Strat Officer
Transactions
  • Sale

    Common Stock

    [F1]
    2026-02-11$22.15/sh368$8,153114,591 total
Footnotes (1)
  • [F1]This represents shares sold to cover tax withholding on the Restricted Stock Units released on February 10, 2026.
Signature
/s/ David Watson, attorney-in-fact for Mark DeLong|2026-02-13

Documents

1 file
  • 4
    form4.xmlPrimary

    PRIMARY DOCUMENT