SEC FORM 3

SEC FORM 3 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^*

Snider William

(Last)

(First)

(Middle)

C/O HARVARD BIOSCIENCE, INC.

84 OCTOBER HILL ROAD

(Street)

HOLLISTON

01746

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
12/17/2025

3. Issuer Name and Ticker or Trading Symbol
HARVARD BIOSCIENCE INC [ HBIO ]

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

X	Director	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)

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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	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)
Warrant (right to buy)	⁽³⁾	12/17/2032	Common Stock	150,000	$0.5	I	As manager⁽¹⁾
Warrant (right to buy)	⁽³⁾	12/17/2032	Common Stock	600,000	$0.5	I	As manager⁽²⁾

Explanation of Responses:

1. Held by BroadOak Fund VI, L.P. The reporting person is the Manager of BroadOak Fund VI, L.P. The reporting person disclaims beneficial ownership of the securities held by BroadOak Fund VI, L.P except to the extent of his pecuniary interest therein, if any.

2. Held by BroadOak Income Fund, L.P. The reporting person is the Manager of BroadOak Income Fund, L.P. The reporting person disclaims beneficial ownership of the securities held by BroadOak Income Fund, L.P except to the extent of his pecuniary interest therein, if any.

3. The Warrants are exercisable immediately. Notwithstanding the foregoing, the Reporting Person shall not be entitled to exercise the Warrants to the extent that such exercise would cause the aggregate number of shares of common stock of the Issuer, $0.01 par value per share (the "Common Stock"), beneficially owned by the Reporting Person to exceed 19.99% of the total number of outstanding shares of Common Stock following such exercise.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ William Snider	12/30/2025
	** 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 5 (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.

SEC Form 3 filed by new insider Snider William