Acumen Pharmaceuticals (ABOS) Form 3 Acumen Pharmaceuticals / Paul B Manning ownership change

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

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1. Name and Address of Reporting Person^*

Manning Paul B

(Last) (First) (Middle)

C/O ACUMEN PHARMACEUTICALS, INC.

427 PARK STREET

(Street)

CHARLOTTESVILLE VA 22902

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
06/30/2021

3. Issuer Name and Ticker or Trading Symbol
Acumen Pharmaceuticals, Inc. [ ABOS ]

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

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

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	89,709	I	See Footnotes(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Series A-1 Preferred Stock	(2)	(2)	Common Stock	1,634,515	(2)	I	See Footnote(1)
Series B Preferred Stock	(2)	(2)	Common Stock	1,315,969	(2)	I	See Footnote(1)
Series B Preferred Stock	(2)	(2)	Common Stock	657,985	(2)	I	See Footnote(3)

Explanation of Responses:

1. The securities are held by The Paul B. Manning Revocable Trust dated May 10, 2000 (the "Trust"). The Reporting Person is the trustee of the Trust and has sole voting and investment power with respect to the shares held by the Trust.

2. Each share of Series A-1 Preferred Stock and each share of Series B Preferred Stock will automatically convert into one share of Common Stock of the Issuer upon the closing of the Issuer's initial public offering. The Series A-1 Preferred and the Series B Preferred Stock have no expiration date.

3. The shares are held directly by BKB Growth Investments, LLC ("BKB"). The Reporting Person is a co-manager of Tiger Lily Capital, LLC, the manager of BKB, and has shared voting and investment power with respect to the shares held by BKB.

Remarks:

Exhibit List - Exhibit 24 - Power of Attorney

	/s/ Katherine Denby, Attorney-in-Fact	06/30/2021
	** 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 5 (b)(v).
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