Marc Suidan - 19 May 2026 Form 4 Insider Report for Backblaze, Inc. (BLZE)

Reporting relationship: Chief Financial Officer
Issuer ticker: BLZE
Reported as of: 19 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 21 May 2026, 20:51:59 UTC
Prior SEC filing: 18 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Evangeline Cheung, Attorney-in-Fact

Key filing fact

Marc Suidan filed Form 4 for Backblaze, Inc. (BLZE) on 21 May 2026.

Key facts

This page summarizes Marc Suidan's Form 4 filing for Backblaze, Inc. (BLZE).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 21 May 2026, 20:51.

Change

Previous filing in this sequence was filed on 18 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001924949 Primary reporting owner

Suidan Marc

Relationship: Chief Financial Officer
Address: 2261 MARKET STREET, STE 81006, SAN FRANCISCO
Signature: /s/ Evangeline Cheung, Attorney-in-Fact
Signature date: 20 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BLZE transaction

Class A Common Stock

Award

Transaction value
Shares: +2,500
Change %: +0.66%
Price: $3.68^*
Shares after: 380,980
Date: 19 May 2026
Ownership: Direct
Footnotes: F1, F2

BLZE transaction

Class A Common Stock

Tax liability

Transaction value
Shares: -269
Change %: -0.07%
Price: $7.43^*
Shares after: 380,711
Date: 20 May 2026
Ownership: Direct

BLZE transaction

Class A Common Stock

Disposed to Issuer

Transaction value
Shares: -18,000
Change %: -4.7%
Price: $7.43^*
Shares after: 362,711
Date: 20 May 2026
Ownership: Direct
Footnotes: F3, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

These shares of the Issuer's common stock were acquired pursuant to the Issuer's 2021 Employee Stock Purchase Plan ("ESPP") for the ESPP purchase period of November 20, 2025 through May 19, 2026. This transaction is exempt pursuant to Rule 16b-3(c) promulgated pursuant to the Securities Exchange Act of 1934.

Footnote F2

Under the ESPP, the purchase price is equal to 85% of the lower of the closing price of the Issuer's common stock on the first day of the applicable purchase period or the purchase date. The closing price of the Issuer's common stock on November 20, 2025 was $4.33.

Footnote F3

Represents previously issued restricted stock units that the Issuer retired for cash upon vesting in lieu of issuing shares of common stock.

Footnote F4

These restricted stock units were settled by the Issuer at the closing price per share of the Issuer's common stock on the vesting date.