Security key
05637B105
- Security type / class
- Equity / Class A Stock
- Total 13F shares
- 29,977,767
- Total 13F value
- $278,232,202
- Share change
- +2,966,632
- Put/Call ratio
- 0%
- SEC-reported price per share
- $9.28
- Number of holders
- 147
- Value change
- +$36,406,770
- Number of buys
- 86
- Number of sells
- 58
- Shares outstanding
- 60,100,947
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2025
Institutions
147
Top holders
10
BLZE full security history
Ownership snapshot
Full 13F holder table
Backblaze, Inc. SEC filings
Backblaze, Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of BLZE - Backblaze, Inc. - Class A Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Tina Cessna
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
20 Aug 2025
3/4/5
13F
Lead comparable stake: 0.31%
Showing 1-6 of 15 holder rows.
Quick read
Tina Cessna leads the comparable SEC ownership view at 0.31%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Tina Cessna's linked filing trail.
Comparable ownership
Top 5
Tina Cessna
0.31%
Jocelyn Carter-Miller
0.17%
BlackRock, Inc.
6%
AWM Investment Company, Inc.
5.1%
VANGUARD GROUP INC
4.3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Tina Cessna |
3/4/5
Senior VP, Engineering
|
0.31%
|
$1,413,536
184,776 shares
|
— | 20 Aug 2025 |
| Jocelyn Carter-Miller |
3/4/5
Director
|
0.17%
|
$461,859
103,556 shares
|
— | 27 May 2025 |
| BlackRock, Inc. |
13F
Company
|
6%
|
$19,752,614
3,591,384 shares
|
— | 30 Jun 2025 |
| AWM Investment Company, Inc. |
13F
Company
|
5.1%
|
$16,854,893
3,064,526 shares
|
— | 30 Jun 2025 |
| VANGUARD GROUP INC |
13F
Company
|
4.3%
|
$14,077,108
2,559,474 shares
|
— | 30 Jun 2025 |
| AIGH Capital Management LLC |
13F
Company
|
3%
|
$9,950,028
1,809,096 shares
|
— | 30 Jun 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
147
Shares
29,977,767
Rows available
147
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
130
Q3 2025 holders
147
Holder diff
17
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 value | Q3 2025 value | Value change | Value Chg % |
|---|