UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): February 19, 2021

HighCape Capital Acquisition Corp.

(Exact name of registrant as specified in its charter)

Delaware	001-39486	85-1388175
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

452 Fifth Avenue, 21st Floor

New York, NY 10018

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: (646) 793-3510

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

x Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Units, each consisting of one share of Class A Common Stock and one-third of one Redeemable Warrant	CAPAU	The Nasdaq Stock Market LLC
Class A Common Stock, par value $0.0001 per share	CAPA	The Nasdaq Stock Market LLC
Warrants, each exercisable for one share of Class A Common Stock for $11.50 per share	CAPAW	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  x

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨

Item 1.01. Entry into a Material Definitive Agreement.

Support Agreement

On February 19, 2021, Dr. Jonathan M. Rothberg and certain stockholders of Quantum-SI Incorporated (“Quantum”) affiliated with Dr. Rothberg (collectively, the “Supporting Stockholders”) entered into a Transaction Support Agreement (the “Support Agreement”) with HighCape Capital Acquisition Corp. (“HighCape” or the “Company”). Under the Support Agreement, each Supporting Stockholder agreed, among other things, to (i) execute and deliver to Quantum and HighCape, as promptly as reasonably practicable (and in any event within two business days) following the time at which the registration statement on Form S-4 related to the Business Combination Agreement (defined below) is declared effective under the Securities Act of 1933, as amended, a written consent under which they shall consent to the approval of that certain Business Combination Agreement, dated as of February 18, 2021, by and among HighCape, Tenet Merger Sub, Inc. and Quantum (the “Business Combination Agreement”), the related documents and the transactions contemplated thereby and (ii) be bound by certain other covenants and agreements related to the Business Combination. In addition, under the Support Agreement, the Supporting Stockholders agreed, prior to the closing of the Business Combination, to be bound by certain transfer restrictions with respect to their equity securities of Quantum and to vote against competing acquisition proposals. The foregoing description of the Support Agreement does not purport to be complete and is qualified in its entirety by the terms and conditions of the Support Agreement filed as Exhibit 10.1 hereto and incorporated by reference herein.

Important Information about the Business Combination and Where to Find It

In connection with the proposed Business Combination, the Company intends to file with the Securities and Exchange Commission (the “SEC”) a registration statement on Form S-4 (the “Registration Statement”), which will include a preliminary proxy statement/prospectus and a definitive proxy statement/prospectus, and certain other related documents, which will be both the proxy statement to be distributed to holders of shares of the Company’s common stock in connection with the Company’s solicitation of proxies for the vote by the Company’s stockholders with respect to the Business Combination and other matters as may be described in the Registration Statement, as well as the prospectus relating to the offer and sale of the securities of the Company to be issued in the Business Combination. The Company’s stockholders and other interested persons are advised to read, when available, the preliminary proxy statement/prospectus included in the Registration Statement and the amendments thereto and the definitive proxy statement/prospectus, as well as other documents filed with the SEC in connection with the proposed Business Combination, as these materials will contain important information about the parties to the Business Combination Agreement, the Company and the proposed Business Combination. After the Registration Statement is declared effective, the definitive proxy statement/prospectus and other relevant materials for the proposed Business Combination will be mailed to stockholders of the Company as of a record date to be established for voting on the proposed Business Combination and other matters as may be described in the Registration Statement. Stockholders will also be able to obtain copies of the preliminary proxy statement/prospectus, the definitive proxy statement/prospectus, and other documents filed with the SEC that will be incorporated by reference therein, without charge, once available, at the SEC’s web site at www.sec.gov, or by directing a request to: HighCape Capital Acquisition Corp., 452 Fifth Avenue, 21st Floor, New York, NY 10018, Attention: Kevin Rakin, or to info@HighCapeacquisition.com.

Participants in the Solicitation

The Company and its directors and executive officers may be deemed participants in the solicitation of proxies from the Company’s stockholders with respect to the Business Combination. A list of the names of those directors and executive officers and a description of their interests in the Company will be contained in the Registration Statement for the Business Combination, when available, and will be available free of charge at the SEC’s web site at www.sec.gov, or by directing a request to HighCape Capital Acquisition Corp., 452 Fifth Avenue, 21st Floor, New York, NY 10018, Attention: Kevin Rakin, or to info@HighCapeacquisition.com. Additional information regarding the interests of such participants will be contained in the Registration Statement when available.

Quantum-SI and its directors and executive officers may also be deemed to be participants in the solicitation of proxies from the stockholders of the Company in connection with the Business Combination. A list of the names of such directors and executive officers and information regarding their interests in the Business Combination will be contained in the Registration Statement when available.

No Offer or Solicitation

This Current Report on Form 8-K shall not constitute a solicitation of a proxy, consent or authorization with respect to any securities or in respect of the Business Combination. This Current Report on Form 8-K shall also not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any states or jurisdictions in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of section 10 of the Securities Act.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number	Description
10.1	Transaction Support Agreement, dated as of February 19, 2021, by and among HighCape Capital Acquisition Corp., Dr. Jonathan M. Rothberg, and the other parties signatory thereto.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: February 22, 2021

HIGHCAPE CAPITAL ACQUISITION CORP.
By:	/s/ Matt Zuga
	Name:	Matt Zuga
	Title:	Chief Financial Officer and Chief Operating Officer