Arcus (NYSE: RCUS) director gifts 5,050 shares in estate move

Rhea-AI Filing Summary

Arcus Biosciences director Antoni Ribas reported a routine insider update. He made a bona fide gift of 5,050 shares of Common Stock, described as a gift to family members for estate planning purposes. This transfer is a disposition but not a market sale, with no price received.

After the gift, Ribas directly holds 38,600 Common Stock shares, and separately has 8,553 shares held indirectly by a trust. A footnote notes that his indirect holdings include the unvested portion of his RSU grants, indicating ongoing equity exposure through both direct and indirect ownership.

Insider Trade Summary

5,050 shares gifted

Mixed 2 txns

Insider Ribas Antoni

Role null

Type	Security	Shares	Price	Value
Gift	Common Stock	5,050	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 38,600 shares (Direct, null); Common Stock — 8,553 shares (Indirect, By Trust)

Footnotes (1)

1. Gift to family members for estate planning purposes. Includes the unvested portion of the reporting person's RSU grants.

Key Figures

Shares gifted: 5,050 shares Gift price per share: $0.0000 per share Direct holdings after gift: 38,600 shares +3 more

6 metrics

Shares gifted 5,050 shares Bona fide gift of Common Stock

Gift price per share $0.0000 per share Reported price for gifted shares

Direct holdings after gift 38,600 shares Common Stock directly owned post-transaction

Indirect holdings by trust 8,553 shares Common Stock held indirectly via trust

Gift transactions 1 transaction Count of bona fide gifts reported

Shares gifted total 5,050 shares Total gift shares from transaction summary

Key Terms

bona fide gift, estate planning, RSU grants, indirect ownership

4 terms

bona fide gift financial

"transaction code description shows “Bona fide gift” for 5,050 shares"

A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.

estate planning financial

"Footnote states: “Gift to family members for estate planning purposes.”"

A set of instructions and legal steps that decide who gets your money, property and other assets, and who will manage them if you become unable to do so. For investors it matters because thoughtful planning can reduce taxes and delays, protect heirs, and keep investments from being tied up in court—think of it as a clear map and emergency kit that preserves value and directs where assets go when you can’t.

RSU grants financial

"Footnote notes: “Includes the unvested portion of the reporting person's RSU grants.”"

indirect ownership financial

"An entry shows 8,553 shares with ownership type indirect and nature of ownership By Trust."

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^*

Ribas Antoni

(Last) (First) (Middle)

C/O ARCUS BIOSCIENCES, INC.

3928 POINT EDEN WAY

(Street)

HAYWARD CALIFORNIA 94545

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Arcus Biosciences, Inc. [ RCUS ]

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)
12/16/2025

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	12/16/2025		G		5,050(1)	D	$0	38,600(2)	D
Common Stock								8,553	I	By Trust

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. Gift to family members for estate planning purposes.

2. Includes the unvested portion of the reporting person's RSU grants.

Remarks:

	/s/ Carolyn Tang, Attorney-in-Fact	05/12/2026
	** 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 Arcus (RCUS) director Antoni Ribas report?

Antoni Ribas reported a bona fide gift of 5,050 Arcus Biosciences Common Stock shares. This was a non-market transfer, meaning he did not sell the shares for cash but gifted them, consistent with estate planning activity.

Was the Arcus (RCUS) Antoni Ribas Form 4 transaction a sale?

No, the Form 4 for Antoni Ribas reflects a bona fide gift, not an open-market sale. He transferred 5,050 Common Stock shares as a gift to family members for estate planning, with a reported per-share price of $0.0000.

How many Arcus (RCUS) shares does Antoni Ribas hold after the reported gift?

Following the gift, Antoni Ribas directly holds 38,600 Arcus Biosciences Common Stock shares. He also has 8,553 shares held indirectly by a trust, which a footnote states includes the unvested portion of his RSU grants.

What does the “bona fide gift” code G mean in the Arcus (RCUS) Form 4?

Transaction code G on the Form 4 indicates a bona fide gift. For Arcus Biosciences director Antoni Ribas, it records a transfer of 5,050 Common Stock shares to family members for estate planning, not a sale in the open market.

How many shares did Arcus (RCUS) director Antoni Ribas gift for estate planning?

Antoni Ribas gifted 5,050 shares of Arcus Biosciences Common Stock. A footnote explains this as a gift to family members for estate planning purposes, classifying it as a non-cash, non-market disposition rather than a typical buy or sell trade.