# EDGAR Filing Document

**Accession Number:** 0001816431
**File Stem:** 0001816431-26-000037
**Filing Date:** 2026-5
**Character Count:** 6980
**Document Hash:** e723b1a32aa8ffcff46de7712186fb6d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001816431-26-000037.hdr.sgml**: 20260515

**ACCESSION NUMBER**: 0001816431-26-000037

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20260515

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**FILED AS OF DATE**: 20260515

**DATE AS OF CHANGE**: 20260515

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Quantum-Si Inc
- **CENTRAL INDEX KEY:** 0001816431
- **STANDARD INDUSTRIAL CLASSIFICATION:** MEASURING & CONTROLLING DEVICES, NEC [3829]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 851388175
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39486
- **FILM NUMBER:** 26987590

**BUSINESS ADDRESS:**
- **STREET 1:** 29 BUSINESS PARK DRIVE
- **CITY:** BRANFORD
- **STATE:** CT
- **ZIP:** 06405
- **BUSINESS PHONE:** (203) 458-7100

**MAIL ADDRESS:**
- **STREET 1:** 29 BUSINESS PARK DRIVE
- **CITY:** BRANFORD
- **STATE:** CT
- **ZIP:** 06405

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** HighCape Capital Acquisition Corp.
- **DATE OF NAME CHANGE:** 20200629

?xml version='1.0' encoding='ASCII'? qsi-20260515

**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): **May 15, 2026**

**QUANTUM-SI INCORPORATED**

(Exact name of registrant as specified in its charter)

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

---

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| | |
|:---|:---|
| **29 Business Park Drive** | |
| **Branford, Connecticut** | **06405** |
| (Address of principal executive offices) | (Zip Code) |

---

Registrant's telephone number, including area code: **(866) 688-7374**

**N/A**

(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:

□ 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:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on**<br>**which registered** |
| Class A common stock, par value $0.0001 per share | QSI | The Nasdaq Stock Market LLC |
| Redeemable warrants, each whole warrant exercisable for one share of Class A common stock, each at an exercise price of $11.50 per share | QSIAW | The Nasdaq Stock Market LLC |

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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&nbsp;&nbsp;&nbsp;&nbsp; □

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. □

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**Item 5.07&nbsp;&nbsp;&nbsp;&nbsp; Submission of Matters to a Vote of Security Holders.**

(a) On May 15, 2026, the Company held its Annual Meeting. At the Annual Meeting, the Company's shareholders voted on three proposals, each of which is described in more detail in the Company's definitive proxy statement filed with the Securities and Exchange Commission on April 1, 2026 (the "Proxy Statement"). At the Annual Meeting, there were 104,709,566 shares of Class A common stock and 19,937,500 shares of Class B common stock present or represented by proxy, which represented approximately 84.59% of the outstanding total voting power of the shares of Class A common stock and Class B common stock entitled to vote at the Annual Meeting (voting together as a single class), which constituted a quorum for the transaction of business. Holders of the Company's Class A common stock were entitled to one vote for each share held as of the close of business on March 20, 2026 (the "Record Date"), and holders of the Company's Class B common stock were entitled to 20 votes for each share held as of the Record Date.

(b) The following actions were taken at the Annual Meeting:

1. The following nominees were reelected to serve on the Board until the Company's 2027 annual meeting of stockholders, based on the following votes:

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| | | | | |
|:---|:---|:---|:---|:---|
| **Name** | **Votes For** | **Votes Against** | **Votes Abstained** | **Broker Non-Votes** |
| Charles Kummeth | 450934026 | 3431426 | 181207 | 48912907 |
| Jeffrey Hawkins | 450954265 | 3490927 | 101467 | 48912907 |
| Paula Dowdy | 450854550 | 3470812 | 221297 | 48912907 |
| Ruth Fattori | 450847672 | 3497189 | 201798 | 48912907 |
| Amir Jafri | 450841057 | 3281385 | 424217 | 48912907 |
| Jack Kenny | 444883464 | 9461504 | 201691 | 48912907 |
| Brigid A. Makes | 450879316 | 3265783 | 401560 | 48912907 |
| Scott Mendel | 450854550 | 3470812 | 221297 | 48912907 |
| Kevin Rakin | 450883869 | 3260489 | 402301 | 48912907 |
| Jonathan M. Rothberg, Ph.D. | 454010014 | 429631 | 107014 | 48912907 |

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2. The selection of PricewaterhouseCoopers LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2026 was ratified, based on the following votes:

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| | | | |
|:---|:---|:---|:---|
| **Votes For** | **Votes Against** | **Votes Abstained** | **Broker Non-Votes** |
| 502,452,749 | 756,904 | 249,913 | 48,912,907 |

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3. The advisory vote of the compensation of the Company's named executive officers, as described in the Proxy Statement, was approved, based on the following votes:

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| | | | |
|:---|:---|:---|:---|
| **Votes For** | **Votes Against** | **Votes Abstained** | **Broker Non-Votes** |
| 441,315,119 | 13,004,700 | 226,840 | 48,912,907 |

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**SIGNATURES**

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.

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| | | |
|:---|:---|:---|
| | **QUANTUM-SI INCORPORATED** | **QUANTUM-SI INCORPORATED** |
|  | By: | /s/ *Jeffry Keyes* |
|  | Name: | Jeffry Keyes |
|  | Title: | Chief Financial Officer |
| Date: May 15, 2026 |  |  |

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