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

Rhea-AI Filing Summary

SEC Form 4 – Abpro Holdings, Inc. (ABP)

Director Anthony D. Eisenberg reported one transaction dated 07/25/2025. He was granted a stock option covering 60,600 common shares at an exercise price of $0.3154 per share. The option vests in full on 11/13/2025, provided continuous service, and expires on 07/25/2035. Following the grant, Mr. Eisenberg beneficially owns 60,600 derivative securities, held directly.

• Nature: Initial option grant; no shares were bought or sold in the open market.
• Potential dilution: Up to 60,600 new shares could be issued upon exercise.

Insights

Equity Compensation Analyst

TL;DR: Routine director option grant; minor ownership alignment, negligible near-term impact.

The filing shows a standard incentive award rather than a market purchase. An at-the-money option priced at $0.3154 for 60,600 shares is small relative to typical public-company float and is fully vesting by 11/13/2025, encouraging retention through that date. Because no cash changed hands and dilution potential is modest, the transaction is neutral for valuation and liquidity. Investors may view it as modestly positive for governance, but not materially impactful.

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

1. Name and Address of Reporting Person^*

Eisenberg Anthony D.

(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/ Anthony D. Eisenberg	07/29/2025
	** 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 did ABP director Anthony D. Eisenberg report on Form 4?

He received an option to buy 60,600 shares at $0.3154 on 07/25/2025.

When does the newly granted ABP stock option vest?

The option vests in full on 11/13/2025 if continuous service is maintained.

What is the expiration date of the ABP option grant?

The option expires on 07/25/2035.

Did the Form 4 disclose any open-market purchases or sales of ABP shares?

No. The filing only reports an option grant; no common stock was bought or sold.