Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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 * M33 Growth I L.P. 2. Issuer Name and Ticker or Trading Symbol Oncology Institute, Inc. [TOI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 888 BOYLSTON STREET, SUITE 500 3. Date of Earliest Transaction (Month/Day/Year) 06/05/2025 (Street) BOSTON, MA 02199 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) 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 06/05/2025 S 673,676 D $3.05 13,950,557 D(1) Common Stock 06/05/2025 S 76,324 D $3.05 1,272,724 I See Footnote(2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
M33 Growth I L.P. 888 BOYLSTON STREET, SUITE 500 BOSTON, MA 02199	X	X
M33 Growth I GP LLC 888 BOYLSTON STREET, SUITE 500 BOSTON, MA 02199	X	X
TOI M, LLC 888 BOYLSTON STREET, SUITE 500 BOSTON, MA 02199	X	X

Signatures

/s/ Gabriel Ling, Managing Member of M33 Growth I GP LLC, the general partner of M33 Growth I LP		06/09/2025
**Signature of Reporting Person		Date
/s/ Gabriel Ling, Managing Member of M33 Growth I GP LLC		06/09/2025
**Signature of Reporting Person		Date
/s/ Gabriel Ling, Managing Member of TOI M, LLC		06/09/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(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).
(1)	M33 Growth I GP LLC ("M33 LLC") is the general partner of M33 Growth I L.P. ("M33 LP") and may be deemed to beneficially own the shares held by M33 LP but disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein.
(2)	These securities are held by TOI M, LLC.

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