BLZE Institutional Ownership & Shareholders
BACKBLAZE INC-A (BLZE) is currently held by 160 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $552.12M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of BLZE tracked by InsiderSet, reporting ownership valued at approximately $74.90M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $59.93M, representing an estimated loss of -19.99% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 56% of the total disclosed BLZE value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Driehaus Capital Management Llc, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in BACKBLAZE INC-A (BLZE).
This page ranks the largest institutional BLZE shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
160
Total Reported Value
$552.12M
Largest Holder
Blackrock, Inc.
Largest Position
$74.90M
Insider Transactions (90d)
4
Latest Filing Quarter
Q2 2026
New Institutional Positions
111
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 4,722,483 | $74,898,579 | $59,928,309 | -$14,970,270 | -19.99% | |
| Driehaus Capital Management Llc | 0.25% | 2,688,044 | $42,632,378 | $34,111,278 | -$8,521,100 | -19.99% | |
| Vanguard Capital Management Llc | 0.00% | 2,514,639 | $39,882,175 | $31,910,769 | -$7,971,406 | -19.99% | |
| Acadian Asset Management Llc | 0.03% | 1,786,402 | $28,318,000 | $22,669,441 | -$5,648,559 | -19.95% | |
| Geode Capital Management, Llc | 0.00% | 1,525,097 | $24,194,147 | $19,353,481 | -$4,840,666 | -20.01% | |
| Awm Investment Company, Inc. | 1.93% | 1,400,166 | $22,206,633 | $17,768,107 | -$4,438,526 | -19.99% | |
| Pillsbury Lake Capital Llc | 5.84% | 1,339,837 | $21,249,815 | $17,002,532 | -$4,247,283 | -19.99% | |
| State Street Corp | 0.00% | 1,216,998 | $19,301,588 | $15,443,705 | -$3,857,883 | -19.99% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.03% | 1,156,752 | $18,346,087 | $14,679,183 | -$3,666,904 | -19.99% | |
| Aqr Capital Management Llc | 0.01% | 1,051,847 | $16,682,293 | $13,347,938 | -$3,334,355 | -19.99% | |
| Qube Research & Technologies Ltd | 0.01% | 766,200 | $12,151,932 | $9,723,078 | -$2,428,854 | -19.99% | |
| Renaissance Technologies LLC | Jim Simons | 0.02% | 762,608 | $12,094,963 | $9,677,496 | -$2,417,467 | -19.99% |
| Next Century Growth Investors Llc | 0.58% | 687,498 | $10,903,718 | $8,724,350 | -$2,179,368 | -19.99% | |
| Dimensional Fund Advisors Lp | 0.00% | 628,636 | $9,966,563 | $7,977,391 | -$1,989,172 | -19.96% | |
| Vanguard Portfolio Management Llc | 0.00% | 613,784 | $9,734,614 | $7,788,919 | -$1,945,695 | -19.99% | |
| Nuveen, Llc | 0.00% | 577,841 | $9,164,559 | $7,332,802 | -$1,831,757 | -19.99% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 550,070 | $8,724,110 | $6,980,388 | -$1,743,722 | -19.99% | |
| Millennium Management Llc | 0.01% | 495,435 | $7,857,599 | $6,287,070 | -$1,570,529 | -19.99% | |
| Northern Trust Corp | 0.00% | 483,598 | $7,669,865 | $6,136,859 | -$1,533,006 | -19.99% | |
| Jump Financial, Llc | 0.07% | 469,100 | $7,439,926 | $5,952,879 | -$1,487,047 | -19.99% | |
| Goldman Sachs Group Inc | 0.00% | 468,330 | $7,427,714 | $5,943,108 | -$1,484,606 | -19.99% | |
| Halter Ferguson Financial Inc. | 1.18% | 457,753 | $7,259,963 | $5,808,886 | -$1,451,077 | -19.99% | |
| Vanguard Fiduciary Trust Co | 0.00% | 423,644 | $6,718,994 | $5,376,042 | -$1,342,952 | -19.99% | |
| Morgan Stanley | 0.00% | 407,911 | $6,469,469 | $5,176,391 | -$1,293,078 | -19.99% | |
| Fmr Llc | 0.00% | 354,493 | $5,622,265 | $4,498,516 | -$1,123,749 | -19.99% | |
| Prelude Capital Management, Llc | 0.37% | 316,851 | $5,025,257 | $4,020,839 | -$1,004,418 | -19.99% | |
| Marshall Wace, Llp | 0.00% | 316,341 | $5,017,168 | $4,014,367 | -$1,002,801 | -19.99% | |
| Perkins Capital Management Inc | 3.68% | 308,725 | $4,896,378 | $3,917,720 | -$978,658 | -19.99% | |
| Lazard Asset Management Llc | 0.01% | 297,138 | $4,712,609 | $3,770,681 | -$941,928 | -19.99% | |
| Raymond James Financial Inc | 0.00% | 249,686 | $3,960,019 | $3,168,515 | -$791,504 | -19.99% | |
| Tudor Investment Corp Et Al | 0.02% | 244,903 | $3,884,162 | $3,107,819 | -$776,343 | -19.99% | |
| Boothbay Fund Management, Llc | 0.07% | 242,386 | $3,844,242 | $3,075,878 | -$768,364 | -19.99% | |
| Jpmorgan Chase & Co | 0.00% | 243,341 | $3,642,815 | $3,087,997 | -$554,818 | -15.23% | |
| Trexquant Investment Lp | 0.02% | 226,095 | $3,585,867 | $2,869,146 | -$716,721 | -19.99% | |
| Ubs Group Ag | 0.00% | 215,721 | $3,421,335 | $2,737,499 | -$683,836 | -19.99% | |
| Norges Bank | 0.00% | 215,400 | $3,416,244 | $2,733,426 | -$682,818 | -19.99% | |
| Hrt Financial Lp | 0.01% | 195,120 | $3,094,000 | $2,476,073 | -$617,927 | -19.97% | |
| Bank Of New York Mellon Corp | 0.00% | 193,812 | $3,073,852 | $2,459,474 | -$614,378 | -19.99% | |
| Charles Schwab Investment Management Inc | 0.00% | 169,718 | $2,691,727 | $2,153,721 | -$538,006 | -19.99% | |
| Regal Partners Ltd | 0.14% | 163,076 | $2,586,385 | $2,069,434 | -$516,951 | -19.99% | |
| Ameriprise Financial Inc | 0.00% | 156,927 | $2,488,863 | $1,991,404 | -$497,459 | -19.99% | |
| Squarepoint Ops Llc | 0.00% | 155,417 | $2,464,914 | $1,972,242 | -$492,672 | -19.99% | |
| Cerity Partners Llc | 0.00% | 147,692 | $2,342,396 | $1,874,211 | -$468,185 | -19.99% | |
| Ieq Capital, Llc | 0.01% | 132,416 | $2,100,118 | $1,680,359 | -$419,759 | -19.99% | |
| Two Sigma Investments, Lp | 0.00% | 123,213 | $1,954,158 | $1,563,573 | -$390,585 | -19.99% | |
| Scientech Research Llc | 1.45% | 112,471 | $1,783,790 | $1,427,257 | -$356,533 | -19.99% | |
| Bank Of America Corp | 0.00% | 102,510 | $1,625,809 | $1,300,852 | -$324,957 | -19.99% | |
| Balyasny Asset Management L.P. | 0.00% | 93,917 | $1,489,523 | $1,191,807 | -$297,716 | -19.99% | |
| Informed Momentum Co Llc | 0.13% | 89,497 | $1,419,422 | $1,135,717 | -$283,705 | -19.99% | |
| Susquehanna International Group, Llp | 0.00% | 86,641 | $1,374,126 | $1,099,474 | -$274,652 | -19.99% |
Frequently asked questions about BLZE
Who are the largest institutional holders of BLZE?
The largest institutional holders of BLZE reported in the latest SEC Form 13F filings include Blackrock, Inc., Driehaus Capital Management Llc, Vanguard Capital Management Llc, Acadian Asset Management Llc, and Geode Capital Management, Llc. InsiderSet ranks institutional holders by their latest reported BLZE position.
What is BLZE institutional ownership?
This page tracks BLZE positions reported by institutional investment managers through SEC Form 13F. BACKBLAZE INC-A (BLZE) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own BLZE?
InsiderSet currently tracks 160 institutional managers reporting BLZE holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of BLZE shareholders.
How much BLZE stock do institutions own?
Institutional investment managers disclosed approximately $552.12M in BLZE holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was BLZE institutional ownership last updated?
The latest BLZE institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional BLZE holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its BLZE position after the reporting date.
Are institutions buying or selling BLZE?
Institutional buying and selling can be analyzed by comparing BLZE positions across consecutive 13F reporting periods. InsiderSet's BLZE Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View BLZE ownership changes.
How has BLZE institutional ownership changed over time?
InsiderSet tracks BLZE institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.