[Form 4] Atlantic Coastal Acquisition Corp. II Unit Insider Trading Activity

Rhea-AI Filing Summary

Abpro Holdings, Inc. (ABP) – Form 4 insider filing

Director Soo Young Lee reported the grant of 60,600 stock options on 07/25/2025 at an exercise price of $0.3154 per share. The options vest in full on 11/13/2025, contingent on continued service, and expire on 07/25/2035. After the award, Lee beneficially owns 60,600 derivative securities, all held directly. No open-market purchases or sales of common stock were reported in Table I.

The filing represents a routine equity incentive meant to align director interests with shareholders and does not disclose any purchase or sale of existing shares.

Insights

Securities Analyst

TL;DR: Routine option grant to director; neutral impact, no cash transaction or change in ownership percentages.

The 60,600 options, priced at $0.3154, are standard equity compensation for governance alignment. Because the grant is in-the-money only if ABP rises above the strike, dilution risk is minimal today. There is no immediate cash outlay by the insider and no signal of bullish or bearish sentiment through share purchases or sales. Given the modest size relative to ABP’s share count and the absence of accompanying business disclosures, I classify the market impact as neutral.

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^*

Lee Soo Young

(Last) (First) (Middle)

C/O ABPRO HOLDINGS, INC.

68 CUMMINGS PARK DRIVE

(Street)

WOBURN MA 01801

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Abpro Holdings, Inc. [ ABP ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
07/25/2025

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

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
Stock option (right to buy)	$0.3154	07/25/2025		A		60,600		(1)	07/25/2035	Common Stock, par value $0.0001 per share	60,600	$0	60,600	D

Explanation of Responses:

1. This stock option award vests in full on November 13, 2025, subject to the reporting person's continuous service to the Issuer through such date.

	/s/ SooYoung Lee	08/07/2025
	** 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.

FAQ

What type of insider transaction did Abpro Holdings (ABP) report?

A grant of 60,600 stock options to Director Soo Young Lee on 07/25/2025.

What is the exercise price of the new ABP options?

Each option can be exercised at $0.3154 per share.

When do the granted options vest?

They vest in full on November 13, 2025, assuming continuous service.

Did the director buy or sell ABP common shares?

No. No purchases or sales of common stock were disclosed in Table I.

How many derivative securities does the director own after the grant?

Director Lee now holds 60,600 stock options directly.