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
X	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* Ho Gregory P. (Last) (First) (Middle) C/O ISOPLEXIS CORPORATION 35 NE INDUSTRIAL ROAD (Street) BRANFORD CT 06405 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol IsoPlexis Corp [ ISO ]	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) 03/21/2023
	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
Common Stock	03/21/2023		D		3,726,732	D	(1)	0	I	See Footnote 4(4)
Common Stock	03/21/2023		D		2,270,287	D	(1)	0	I	See Footnote 5(5)
Common Stock	03/21/2023		D		67,642	D	(1)	0	I	See Footnote 6(6)

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	$2.1	03/21/2023		D			89,047	(3)	06/16/2032	Common Stock	89,047	(2)	0	D

Explanation of Responses:

1. On March 21, 2023, pursuant to the Agreement and Plan of Merger, dated as of December 21, 2022 (the Merger Agreement), by and among IsoPlexis Corporation, a Delaware corporation (IsoPlexis), Berkeley Lights, Inc., a Delaware corporation (Berkeley Lights), and Iceland Merger Sub Inc., a Delaware corporation and a wholly owned subsidiary of Berkeley Lights, each share of common stock, par value $0.001, of IsoPlexis (IsoPlexis Common Stock) reported in this Form 4 was converted into the right to receive 0.6120 fully paid and nonassessable shares of common stock, par value $0.00005, of Berkeley Lights (Berkeley Lights Common Stock), together with cash in lieu of fractional shares of Berkeley Lights Common Stock, if any, and any unpaid dividends or other distributions.

2. On March 21, 2023, pursuant to the Merger Agreement, each IsoPlexis stock option reported in this Form 4 that was (a) vested and unexercised or (b) vested solely as a result of the consummation of the merger pursuant to the Merger Agreement was, in each case, exercisable prior to the effective time of such merger and, to the extent unexercised at such effective time, canceled for no consideration.

3. Vests in full on the earlier of June 16, 2023 or the day prior to the mext annual shareholders meeting.

4. The Reporting Person is a managing member of Spring Mountain Capital G.P., LLC, a Delaware limited liability company ("SMC GP"). SMC GP is the managing member of SMC Growth Capital II GP, LLC, a Delaware limited liability company ("GCII GP"). GCII GP is the general partner of SMC Growth Capital Partners II, LP ("GCII"), the direct beneficial owner of the securities. The Reporting Person disclaims beneficial ownership, within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the securities held by GCII in which the Reporting Person has no pecuniary interest.

5. The Reporting Person is a managing member of SMC GP. SMC GP is the managing member of SMC Private Equity Holdings G.P., LLC, a Delaware limited liability company ("PEH GP"). PEH GP is the general partner of SMC Private Equity Holdings, LP ("PEH"), the direct beneficial owner of the securities. The Reporting Person disclaims beneficial ownership, within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the securities held by PEH in which the Reporting Person has no pecuniary interest.

6. The Reporting Person is a managing member of SMC Holdings II G.P., LLC, a Delaware limited liability company ("Holdings GP"). Holdings GP is the general partner of SMC Holdings II, LP ("Holdings"), the direct beneficial owner of the securities. The Reporting Person disclaims beneficial ownership, within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the securities held by Holdings in which the Reporting Person has no pecuniary interest.

	/s/ Gregory P. Ho	03/21/2023
	** Signature of Reporting Person	Date
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