Apellis (APLS) director shifts 5,750 trust shares to spouse account

Rhea-AI Filing Summary

Apellis Pharmaceuticals director Stephanie Monaghan O'Brien reported an internal share restructuring involving her spouse's holdings. A total of 5,750 shares of Common Stock were distributed from a trust to an account held directly by her spouse, and her beneficial ownership is unchanged. Following this, she reports 25,666 shares held directly and 5,750 shares held indirectly through her spouse.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider O'Brien Stephanie Monaghan

Role Director

Type	Security	Shares	Price	Value
Other	Common Stock	5,750	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 5,750 shares (Indirect, By Spouse); Common Stock — 25,666 shares (Direct)

Footnotes (1)

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Key Figures

Restructured shares: 5,750 shares Direct holdings after transaction: 25,666 shares Indirect holdings after transaction: 5,750 shares

3 metrics

Restructured shares 5,750 shares Distribution from trust to spouse account on 2026-04-06

Direct holdings after transaction 25,666 shares Common Stock held directly after reported event

Indirect holdings after transaction 5,750 shares Common Stock held indirectly by spouse after distribution

Key Terms

Common Stock, distribution, trust, beneficial ownership, +1 more

5 terms

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

distribution financial

"Represents a distribution of shares from a trust to an account"

A distribution is a payment or transfer of value from a company, fund, or trust to its shareholders or unit holders, commonly made in cash, additional shares, or other assets. Investors care because distributions provide income, reflect how much cash a business or fund can return to owners, can influence yield and taxable income, and often affect the share price much like a store handing out a portion of its profits to customers.

trust financial

"Represents a distribution of shares from a trust to an account"

beneficial ownership financial

"The reporting person's beneficial ownership is unchanged."

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

By Spouse financial

"nature_of_ownership: "By Spouse""

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

O'Brien Stephanie Monaghan

(Last) (First) (Middle)

C/O APELLIS PHARMACEUTICALS, INC.

100 FIFTH AVENUE, 3RD FLOOR

(Street)

WALTHAM MASSACHUSETTS 02451

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Apellis Pharmaceuticals, Inc. [ APLS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/06/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/06/2026		J(1)		5,750	A	$0	5,750	I	By Spouse
Common Stock								25,666	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents a distribution of shares from a trust to an account held directly by the reporting person's spouse. The reporting person's beneficial ownership is unchanged.

	/s/ David Watson, attorney-in-fact for Stephanie O'Brien	04/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Apellis (APLS) director Stephanie Monaghan O'Brien report?

Stephanie Monaghan O'Brien reported an internal restructuring of 5,750 Apellis shares. The shares were distributed from a trust to an account held directly by her spouse, and her overall beneficial ownership of these shares remained unchanged after the movement.

How many Apellis (APLS) shares does Stephanie Monaghan O'Brien hold after this Form 4?

After the reported restructuring, Stephanie Monaghan O'Brien reports 25,666 Apellis shares held directly and 5,750 shares held indirectly through her spouse. The filing notes that the distribution did not change her beneficial ownership, only the manner in which the shares are held.

Was the Apellis (APLS) Form 4 a buy or sell by Stephanie Monaghan O'Brien?

The Form 4 does not report a traditional buy or sell. It shows an internal distribution of 5,750 Apellis shares from a trust to an account held directly by her spouse, characterized as an "other" restructuring with no change in her beneficial ownership position.

What does the trust-to-spouse distribution mean for Apellis (APLS) insider ownership?

The distribution shifted 5,750 Apellis shares from a trust to an account in the spouse’s name. According to the footnote, Stephanie Monaghan O'Brien’s beneficial ownership is unchanged, meaning the economic interest and overall insider position remain the same despite the change in holding structure.

How is Stephanie Monaghan O'Brien’s indirect ownership in Apellis (APLS) reported?

Her indirect ownership is reported as 5,750 Apellis shares held "By Spouse." These shares were previously held in a trust and then distributed to her spouse’s account, but the Form 4 states that this movement did not alter her beneficial ownership of the shares.