Equillium (EQ) COO sells 8,098 shares in Form 4 filing

Equillium, Inc. (EQ) reported an insider stock sale by its Sr.

Rhea-AI Filing Summary

Equillium, Inc. (EQ) reported an insider stock sale by its Sr. Vice President and COO on a Form 4. On 11/25/2025, the officer sold 100 shares of common stock at $0.98 per share and another 7,998 shares at $0.95 per share. After these transactions, the officer beneficially owned 127,148 shares of Equillium common stock directly. The filing notes that the sale was carried out under a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person on August 27, 2025, which is designed to allow insiders to sell shares according to a predetermined schedule.

Insider Trade Summary

Net Seller: 8,098 shares

Net Sell 2 txns

Insider Zedelmayer Christine

Role Sr. Vice President and COO

Sold 8,098 shs ($8K)

Type	Security	Shares	Price	Value
Sale	Common Stock	100	$0.98	$98.00
Sale	Common Stock	7,998	$0.95	$8K

Holdings After Transaction: Common Stock — 127,148 shares (Direct)

Footnotes (1)

1. F1. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 27, 2025.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Equillium (EQ) disclose in this Form 4 filing?

The filing shows that Equillium's Sr. Vice President and COO sold small amounts of common stock on 11/25/2025 and reported the updated number of shares owned.

How many Equillium (EQ) shares did the officer sell and at what prices?

The officer sold 100 shares of Equillium common stock at $0.98 per share and 7,998 shares at $0.95 per share on 11/25/2025.

How many Equillium (EQ) shares does the reporting person own after the transactions?

After the reported sales, the officer beneficially owned 127,148 shares of Equillium common stock in direct ownership.

What is the role of the reporting person at Equillium (EQ)?

The reporting person is an officer of Equillium, serving as Sr. Vice President and COO.

Was the Equillium (EQ) stock sale made under a Rule 10b5-1 plan?

Yes. The filing explains that the sale was effected under a Rule 10b5-1 trading plan adopted by the reporting person on August 27, 2025.

Is this Equillium (EQ) Form 4 filed by one or multiple reporting persons?

The Form 4 indicates that it was filed by one reporting person, not a group.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 11/25/2025 - 06:08 PM Learn about SEC filing dates

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).

X

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^*

Zedelmayer Christine

(Last) (First) (Middle)

2223 AVENIDA DE LA PLAYA, SUITE 105

(Street)

LA JOLLA CA 92037

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Equillium, Inc. [ EQ ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Sr. Vice President and COO

3. Date of Earliest Transaction (Month/Day/Year)
11/25/2025

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

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

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

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	11/25/2025		S(1)		100	D	$0.98	135,146	D
Common Stock	11/25/2025		S(1)		7,998	D	$0.95	127,148	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. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 27, 2025.

	/s/ Daniel M. Bradbury, Attorney-in-Fact	11/25/2025
	** 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.