Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Backblaze, Inc.BLZE · Entity 5087 | Senior VP, Engineering | August 20, 2025 | August 23, 2025 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Backblaze, Inc.
Report date August 20, 2025 · Filed August 23, 2025
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Common StockSEC Table I · non-derivative | Direct | 184,776 |
Reported balance
After 2025-08-20 transaction · row 1
1 source rowRow 1 · 2025-08-20 · Tax withholding · Disposed 6,428 · Balance 184,776 F1: The shares of Class A Common Stock were withheld by the Issuer to cover tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs"). No shares were sold by the Reporting Person to satisfy this tax liability. |
Filing footnotes · ownership attribution and instrument terms
F1: The shares of Class A Common Stock were withheld by the Issuer to cover tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs"). No shares were sold by the Reporting Person to satisfy this tax liability.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| January 08, 2024 Filed Jan 10, 2024 00:21 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 20,000 | $7.05 | $141,000.00 |
DisclosureSEC source: 0001462056-24-000001 · wk-form4_1704846076.xml · nonDerivative · entry 4 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 122,250 F1 · kind: The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.96 to $7.19, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| January 08, 2024 Filed Jan 10, 2024 00:21 UTC | Backblaze, Inc. BLZE · Entity 5087 | Exercise / conversionClass A Common Stock | 20,000 | $2.54 | $50,800.00 |
DisclosureSEC source: 0001462056-24-000001 · wk-form4_1704846076.xml · nonDerivative · entry 3 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 142,250 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| January 05, 2024 Filed Jan 10, 2024 00:21 UTC | Backblaze, Inc. BLZE · Entity 5087 | Exercise / conversionStock Option (right to buy) · Derivative | 20,000 | $0.00 Strike: $2.54 | $0.00 |
DisclosureSEC source: 0001462056-24-000001 · wk-form4_1704846076.xml · derivative · entry 7 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 85,279 Underlying: Class A Common Stock · 20,000 shares Expires 2028-10-17 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F5 · derivative.exercise_date: The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. 25% of the options vested on June 25, 2019 and 1/48th of the options vest monthly thereafter, subject to the Reporting Person's continuous service with the issuer. Read SEC document |
| January 05, 2024 Filed Jan 10, 2024 00:21 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 20,000 | $7.03 | $140,600.00 |
DisclosureSEC source: 0001462056-24-000001 · wk-form4_1704846076.xml · nonDerivative · entry 2 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 122,250 F1 · kind: The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.95 to $7.145, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| January 05, 2024 Filed Jan 10, 2024 00:21 UTC | Backblaze, Inc. BLZE · Entity 5087 | Exercise / conversionClass A Common Stock | 20,000 | $2.54 | $50,800.00 |
DisclosureSEC source: 0001462056-24-000001 · wk-form4_1704846076.xml · nonDerivative · entry 1 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 142,250 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| December 05, 2023 Filed Dec 5, 2023 22:38 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 9,685 | $7.18 | $69,538.30 |
DisclosureSEC source: 0001462056-23-000211 · wk-form4_1701815918.xml · nonDerivative · entry 3 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 122,250 F1 · kind: The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. F4 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.86 to $7.31, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| December 04, 2023 Filed Dec 5, 2023 22:38 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 20,000 | $7.39 | $147,800.00 |
DisclosureSEC source: 0001462056-23-000211 · wk-form4_1701815918.xml · nonDerivative · entry 2 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 131,935 F1 · kind: The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.28 to $7.84, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| December 01, 2023 Filed Dec 5, 2023 22:38 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 20,000 | $7.43 | $148,600.00 |
DisclosureSEC source: 0001462056-23-000211 · wk-form4_1701815918.xml · nonDerivative · entry 1 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 151,935 F1 · kind: The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.17 to $7.68, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| November 24, 2023 Filed Nov 24, 2023 23:50 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 1,673 | $6.40 | $10,707.20 |
DisclosureSEC source: 0001462056-23-000209 · wk-form4_1700869810.xml · nonDerivative · entry 3 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 171,935 F1 · shares: The sales reported on this Form 4 represent shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person. F4 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.30 to $6.51, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| November 22, 2023 Filed Nov 24, 2023 23:50 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 1,330 | $6.40 | $8,512.00 |
DisclosureSEC source: 0001462056-23-000209 · wk-form4_1700869810.xml · nonDerivative · entry 2 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 173,608 F1 · shares: The sales reported on this Form 4 represent shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person. F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.23 to $6.62, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| November 21, 2023 Filed Nov 24, 2023 23:50 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 1,287 | $6.48 | $8,339.76 |
DisclosureSEC source: 0001462056-23-000209 · wk-form4_1700869810.xml · nonDerivative · entry 1 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 174,938 F1 · shares: The sales reported on this Form 4 represent shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.385 to $6.72, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| August 23, 2023 Filed Aug 24, 2023 00:32 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 1,641 | $4.32 | $7,089.12 |
DisclosureSEC source: 0001462056-23-000195 · wk-form4_1692837121.xml · nonDerivative · entry 3 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 176,225 F1 · shares: The sales reported on this Form 4 represent shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person. F4 · balance_after: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.26 to $4.42, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| August 22, 2023 Filed Aug 24, 2023 00:32 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 1,253 | $4.40 | $5,513.20 |
DisclosureSEC source: 0001462056-23-000195 · wk-form4_1692837121.xml · nonDerivative · entry 2 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 177,866 F1 · shares: The sales reported on this Form 4 represent shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person. F3 · balance_after: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.35 to $4.43, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| August 21, 2023 Filed Aug 24, 2023 00:32 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 1,425 | $4.37 | $6,227.25 |
DisclosureSEC source: 0001462056-23-000195 · wk-form4_1692837121.xml · nonDerivative · entry 1 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 179,119 F1 · shares: The sales reported on this Form 4 represent shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person. F2 · balance_after: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.265 to $4.51, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| July 27, 2023 Filed Aug 8, 2023 21:29 UTC | Backblaze, Inc. BLZE · Entity 5087 | GrantClass A Common Stock | 81,700 | $0.00 | $0.00 |
DisclosureSEC source: 0001462056-23-000186 · wk-form4_1691530182.xml · nonDerivative · entry 1 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 180,544 F1 · shares: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive on share of Class A Common Stock for each RSU. The RSUs are subject to a service-based vesting requirement, which will vest on a quarterly basis over approximately 2 years with the first 1/8th tranche vesting on August 20, 2023, provided that the Reporting Person remains in continuous service through each such vesting date. Read SEC document |
| May 24, 2023 Filed May 25, 2023 23:25 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 651 | $4.20 | $2,734.20 |
DisclosureSEC source: 0001462056-23-000147 · wf-form4_168505713919138.xml · nonDerivative · entry 3 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 98,844 F1 · kind: The sales reported on this Form 4 represent shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person. F4 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.16 to $4.23, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| May 23, 2023 Filed May 25, 2023 23:25 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 497 | $4.21 | $2,092.37 |
DisclosureSEC source: 0001462056-23-000147 · wf-form4_168505713919138.xml · nonDerivative · entry 2 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 99,495 F1 · kind: The sales reported on this Form 4 represent shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person. F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.12 to $4.28, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
| May 22, 2023 Filed May 25, 2023 23:25 UTC | Backblaze, Inc. BLZE · Entity 5087 | SaleClass A Common Stock | 565 | $4.17 | $2,356.05 |
DisclosureSEC source: 0001462056-23-000147 · wf-form4_168505713919138.xml · nonDerivative · entry 1 Cessna Tina · CIK 0001978863 · Senior VP, Engineering 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 99,992 F1 · kind: The sales reported on this Form 4 represent shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.145 to $4.25, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.