# EDGAR Filing Document

**Accession Number:** 0001819133
**File Stem:** 0001193125-25-137032
**Filing Date:** 2025-6
**Character Count:** 13095
**Document Hash:** bba6a5d63fbd7ba53b7c4eff92fd1bfd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-137032.hdr.sgml**: 20250606

**ACCESSION NUMBER**: 0001193125-25-137032

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 13

**CONFORMED PERIOD OF REPORT**: 20250605

**ITEM INFORMATION**: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

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

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20250606

**DATE AS OF CHANGE**: 20250606

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Tango Therapeutics, Inc.
- **CENTRAL INDEX KEY:** 0001819133
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39485
- **FILM NUMBER:** 251030460

**BUSINESS ADDRESS:**
- **STREET 1:** 201 BROOKLINE AVENUE
- **STREET 2:** SUITE 901
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02215
- **BUSINESS PHONE:** (857) 320-4900

**MAIL ADDRESS:**
- **STREET 1:** 201 BROOKLINE AVENUE
- **STREET 2:** SUITE 901
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02215

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BCTG Acquisition Corp.
- **DATE OF NAME CHANGE:** 20200723

?xml version='1.0' encoding='ASCII'? 8-K

### 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): June 5, 2025

## TANGO THERAPEUTICS, INC.

#### (Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Delaware** | **001-39485** | **47-2452488** |
| **(State or other jurisdiction**<br> **of incorporation)** | **(Commission**<br> **File Number)** | **(IRS Employer**<br> **Identification No.)** |

---

#### 201 Brookline Avenue

#### Suite 901

#### Boston, MA 02215

#### (Address of principal executive offices, including zip code)

#### Registrant's telephone number, including area code: 857-320-4900
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:

---

| | | |
|:---|:---|:---|
| **Title of each class** | **Trading<br>Symbol(s)** | **Name of each exchange**<br> **on which registered** |
| Common stock, par value $0.001 per share | TNGX | The Nasdaq Global Market |

---

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 ☐

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 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.
At the 2025 annual meeting of stockholders (the "Annual Meeting") of Tango Therapeutics, Inc. (the "Company"), held on June 5, 2025, the stockholders of the Company approved an amendment to Company's Second Amended and Restated Certificate of Incorporation, as amended to date, to increase the number of authorized shares of common stock from 200,000,000 to 400,000,000. The certificate of amendment of the Company's Second Amended and Restated Certificate of Incorporation (the "Certificate of Amendment"), was filed with the Secretary of State of the State of Delaware on June 5, 2025 and became effective upon filing.

The foregoing description is qualified in its entirety by the Certificate of Amendment, which is attached as Exhibit 3.1 to this Current Report on Form 8-K and is incorporated herein by reference.

#### Item 5.07 Submission of Matters to a Vote of Security Holders.
The Annual Meeting of the Company was held in a virtual-only format on June 5, 2025 at 9:00 a.m., Eastern Time via live webcast. Proxies were solicited pursuant to the Company's amended and restated proxy statement filed on April 24, 2025 with the Securities and Exchange Commission under Section 14(a) of the Securities Exchange Act of 1934, as amended (the "Proxy Statement"). As of April 8, 2025, the record date for the Annual Meeting, the number of shares of the Company's common stock, $0.001 par value per share ("Common Stock"), outstanding and entitled to vote at the Annual Meeting was 108,107,890. The number of shares of Common Stock present or represented by valid proxy at the Annual Meeting was 96,845,552, representing 89.58% of the total number of shares of Common Stock entitled to vote at the Annual Meeting, thus establishing a quorum for the Annual Meeting. Shares present virtually during the Annual Meeting were considered shares of Common Stock represented in person at the Annual Meeting. Each share of Common Stock was entitled to one vote with respect to matters submitted to the Company's stockholders at the Annual Meeting.

At the Annual Meeting, the Company's stockholders were asked to vote on the following matters, which are described in detail in the Proxy Statement: (i) to elect one Class I director nominee to the Company's Board of Directors (the "Board"), to hold office until the 2028 annual meeting of stockholders and her successor is duly elected and qualified, or until her earlier resignation or removal ("Proposal 1"), (ii) to ratify the selection of PricewaterhouseCoopers, LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2025 ("Proposal 2"); (iii) to approve an amendment to the Company's Second Amended and Restated Certificate of Incorporation to increase the number of authorized shares of common stock from 200,000,000 to 400,000,000 ("Proposal 3"); (iv) to approve, on a non-binding, advisory basis, of the compensation of the Company's named executive officers ("Proposal 4"); (v) to vote, on a non-binding, advisory basis, on the frequency of future non-binding, advisory votes on the compensation of the Company's named executive officers ("Proposal 5").

The voting results reported below are final.

<u>Proposal 1</u> **–** <u>Election of Directors</u>

Lesley Ann Calhoun was duly elected to the Company's Board as the Class I director. The results of the election were as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **CLASS I DIRECTOR NOMINEE** | **FOR** | **FOR** | **WITHHELD** | **WITHHELD** | **BROKERNON-VOTES** | **BROKERNON-VOTES** |
|  Lesley Ann Calhoun |  | 73142486 |  | 10476404 |  | 13226662 |

---

------

<u>Proposal 2</u> **–** <u>Ratify the Selection of Independent Registered Public Accounting Firm</u>

The selection of PricewaterhouseCoopers, LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2025 was ratified. The results of the ratification were as follows:

---

| | | | |
|:---|:---|:---|:---|
| **FOR** | **AGAINST** | **ABSTAIN** | **BROKERNON-VOTES** |
| 96740238 | 61309 | 44005 | 0 |

---

<u>Proposal 3</u> **–** <u>Approval of an Amendment to the Company's Second Amended and Restated Certificate of Incorporation</u>

The amendment to the Company's Second Amended and Restated Certificate of Incorporations, as amended to date, to increase the number of authorized shares of common stock from 200,000,000 to 400,000,000 was approved. The results were as follows:

---

| | | | |
|:---|:---|:---|:---|
| **FOR** | **AGAINST** | **ABSTAIN** | **BROKER<br>NON-VOTES** |
| 85825060 | 11001501 | 18991 | 0 |

---

<u>Proposal 4</u> **–** <u>Approval on a Non-Binding, Advisory Basis, of the Compensation of the Company's Named Executive Officers</u> 

The Company's stockholders approved the non-binding, advisory vote on the compensation of the Company's named executive officers. The results were as follows:

---

| | | | |
|:---|:---|:---|:---|
| **FOR** | **AGAINST** | **ABSTAIN** | **BROKER<br>NON-VOTES** |
| 63495351 | 20089177 | 34362 | 13226662 |

---

<u>Proposal 5</u> **–** <u>Approval on a Non-Binding, Advisory Basis, of the Frequency of Future Non-Binding, Advisory Votes on Executive Compensation</u>

The Company's stockholders determined that future advisory votes on the compensation paid to its named executive officers would be held every year. The results of the stockholders' non-binding, advisory vote with respect to the frequency of future non-binding advisory votes on the compensation paid to the Company's named executive officers were as follows:

---

| | | | |
|:---|:---|:---|:---|
| **ONE YEAR** | **TWO YEARS** | **THREE YEARS** | **ABSTAIN** |
| 72992992 | 992 | 10589359 | 35547 |

---

Based on these voting results, and the recommendation of the Board that was included in the Proxy Statement, the Company has determined that it will hold future advisory votes on the compensation of the Company's named executive officers on an annual basis until the next stockholder advisory vote on the frequency of future votes on the compensation of the Company's named executive officers.

No other matters were submitted to or voted on by the Company's stockholders at the Annual Meeting.

------

#### Item 9.01 Financial Statements and Exhibits
(d) Exhibits.

---

| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 3.1 | [Certificate of Amendment to the Second Amended and Restated Certificate of Incorporation of Tango Therapeutics, Inc.](d926935dex31.htm) |
| 104 | Cover Page Interactive Data File (Embedded within the Inline XBRL Document). |

---

------

#### 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: June 6, 2025

---

| | |
|:---|:---|
| **TANGO THERAPEUTICS, INC.** | **TANGO THERAPEUTICS, INC.** |
| By: | /s/ Douglas Barry |
| Name: Douglas Barry | Name: Douglas Barry |
| Title: General Counsel | Title: General Counsel |

---

## Exhibit 3.1

**Exhibit 3.1** 

**CERTIFICATE OF AMENDMENT** 

**TO THE** 

**SECOND AMENDED AND RESTATED** 

**CERTIFICATE OF INCORPORATION** 

**OF** 

**TANGO THERAPEUTICS, INC.** 

(Pursuant to Section 242 of the

General Corporation Law of the State of Delaware)

Tango Therapeutics, Inc., a corporation organized and existing under the laws of the State of Delaware (the "<u>Corporation</u>"), hereby certifies as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. The Corporation was originally incorporated pursuant to the General Corporation Law of the State of Delaware (the "<u>DGCL</u>") on May 21, 2020. An Amended and Restated Certificate of Incorporation was filed with the Secretary of State of the State of Delaware on September 2, 2020, as amended by the Certificate of Amendment filed with the Secretary of State of the State of Delaware on June 5, 2024 (the "<u>Charter</u>"). Pursuant to Section 242 of the DGCL, this Certificate of Amendment (this "<u>Amendment</u>") amends certain provisions of the Charter.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. This Amendment has been approved and duly adopted by the Corporation's Board of Directors and stockholders in accordance with the provisions of Section 242 of the DGCL.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. The first paragraph of Article IV of the Charter is hereby amended to read in its entirety as follows:

"The total number of shares of capital stock which the Corporation shall have authority to issue is four hundred and ten million (410,000,000), of which (i) four hundred million (400,000,000) shares shall be a class designated as common stock, par value $0.001 per share (the "Common Stock"), and (ii) ten million (10,000,000) shares shall be a class designated as undesignated preferred stock, par value $0.001 per share (the "<u>Undesignated Preferred Stock</u>")."

IN WITNESS WHEREOF, this Amendment, having been duly adopted in accordance with Section 242 of the DGCL, has been duly executed by a duly authorized officer of the Corporation on this 5th day of June, 2025.

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| | |
|:---|:---|
| Tango Therapeutics, Inc. | Tango Therapeutics, Inc. |
| By: | /s/ Barbara Weber, M.D. |
| Name: | Barbara Weber, M.D. |
| Title: | President and Chief Executive Officer |

---