SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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

OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response: 0.5

1. Name and Address of Reporting Person* Whetstone Capital Advisors, LLC (Last) (First) (Middle) 2001 SHAWNEE MISSION PARKWAY (Street) SHAWNEE MISSION KS 66205 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 11/11/2021	3. Issuer Name and Ticker or Trading Symbol Backblaze, Inc. [ BLZE ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year) 11/22/2021
			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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class A Common Stock(1)	783,000(2)	I	see footnote(3)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Filing this Form 3 Amendment in order to update the Title of Security listed in Table I and accompanying footnotes to Class A Common Stock.

2. The filing of this Form 3 shall not be construed as an admission that Whetstone Capital Advisors, LLC ("WCA") or David Atterbury, the manager of WCA, is or was for the purposes of Section 16(a) of the Securities Exchange Act of 1934, as amended, or otherwise the beneficial owner of any of the Class A Common Stock, par value of $0.0001 per share (the "Common Stock"), of BackBlaze, Inc. (the "Issuer") purchased by certain private investment funds advised by WCA (collectively, the "Whetstone Accounts"). Pursuant to Rule 16a-1, both WCA and Mr. Atterbury disclaim such beneficial ownership.

3. WCA holds indirectly the shares of Common Stock of the Issuer through the Whetstone Accounts, for which WCA is the Investment Manager. David Atterbury reports the Common Stock held indirectly by WCA because, as the manager of WCA at the time of purchase, he controlled the disposition and voting of the securities.

	David A. Atterbury, Manager of Whetstone Capital Advisors, LLC	11/22/2021
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.