Backblaze Inc. Class ABLZE
13F holders, Q3 2025 (September 30)150holders +19
40new positions
21sold out
7famous investors
$9.27avg. 13F price*
At the end of Q3 2025, 150 institutions reported holding Backblaze Inc. Class A (BLZE) in their 13F filings, up 19 from Q2 2025. 40 opened new positions and 21 sold out. The largest holders were BlackRock, Inc. ($34.6M), AWM Investment Company, Inc. ($28.4M) and Vanguard Group Inc. ($25.0M). 7 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Backblaze Inc. Class A
- CUSIP
- 05637B105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 40 | $29.9M |
| Exits | 21 | $11.8M |
All 13F filers, Q2 2025 → Q3 2025: 6,947,746 shares bought and 3,849,393 shares sold, net +3,098,353 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 150 holders
| BlackRock, Inc. | 0.00% | Add +3.7% | 3,724,219 | $34.6M |
| AWM Investment Company, Inc. | 2.67% | No change | 3,064,526 | $28.4M |
| Vanguard Group Inc. | 0.00% | Add +5.2% | 2,693,508 | $25.0M |
| Wasatch Advisors LP | 0.09% | New | 1,834,205 | $17.0M |
| Whetstone Capital Advisors, LLC | 3.75% | Add +22.3% | 1,460,792 | $13.6M |
| Geode Capital Management, LLC | 0.00% | Add +10.3% | 1,288,280 | $12.0M |
| First Eagle Investment Management, LLC | 0.02% | Reduce -2.0% | 1,133,740 | $10.5M |
| State Street Corp. | 0.00% | Add +25.6% | 1,057,694 | $9.8M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.03% | Add +20.1% | 953,914 | $8.9M |
| Millennium Management | 0.01% | Add +12.9% | 870,250 | $8.1M |
| Oberweis Asset Management Inc./ | 0.19% | No change | 538,700 | $5.0M |
| Morgan Stanley | 0.00% | Add +51.4% | 513,730 | $4.8M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +165.9% | 480,281 | $4.5M |
| Citadel Advisors | 0.00% | Add +125.8% | 460,204 | $4.3M |
| Marshall Wace, LLP | 0.00% | Reduce -31.3% | 447,661 | $4.2M |
| Northern Trust Corp. | 0.00% | Add +6.3% | 433,233 | $4.0M |
| Renaissance Technologies | 0.01% | Reduce -4.8% | 416,816 | $3.9M |
| D. E. Shaw & Co. | 0.00% | Add +761.0% | 363,951 | $3.4M |
| JPMorgan Chase & Co. | 0.00% | Add +95.9% | 351,657 | $3.3M |
| Two Sigma Investments, LP | 0.01% | Add +160.3% | 342,323 | $3.2M |
| Acadian Asset Management LLC | 0.01% | Add +162.6% | 334,758 | $3.1M |
| P.A.W. Capital Corp. | 4.88% | Reduce -21.6% | 290,000 | $2.7M |
| Qube Research & Technologies Ltd | 0.00% | Reduce -33.2% | 287,658 | $2.7M |
| Perkins Capital Management Inc. | 2.29% | Reduce -1.9% | 280,025 | $2.6M |
| Jump Financial, LLC | 0.03% | Add +164.5% | 272,524 | $2.5M |
| Lazard Asset Management LLC | 0.00% | Reduce -11.3% | 256,789 | $2.4M |
| Shannon River Fund Management LLC | 0.34% | New | 229,384 | $2.1M |
| Trexquant Investment LP | 0.02% | Add +124.6% | 227,532 | $2.1M |
| Jane Street Group, LLC | 0.00% | New | 224,919 | $2.1M |
| CastleKnight Management LP | 0.11% | No change | 212,400 | $2.0M |
| Los Angeles Capital Management LLC | 0.01% | Reduce -24.5% | 203,549 | $1.9M |
| Cubist Systematic Strategies, LLC | 0.02% | Add +48.6% | 183,649 | $1.7M |
| Algert Global LLC | 0.03% | Add +134.8% | 180,346 | $1.7M |
| D.A. Davidson & Co. | 0.01% | Reduce -0.1% | 179,156 | $1.7M |
| AQR Capital Management | 0.00% | Add +17.8% | 169,912 | $1.6M |
| Barclays PLC | 0.00% | Reduce -13.3% | 168,290 | $1.6M |
| BNP Paribas Financial Markets | 0.00% | Add +193.9% | 165,325 | $1.5M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -11.3% | 165,114 | $1.5M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +6.1% | 162,476 | $1.5M |
| Ameriprise Financial Inc. | 0.00% | New | 154,989 | $1.4M |
| Two Sigma Advisers, LP | 0.00% | Add +122.9% | 154,000 | $1.4M |
| PDT Partners, LLC | 0.08% | No change | 131,166 | $1.2M |
| Raymond James Financial Inc. | 0.00% | Reduce -11.6% | 129,574 | $1.2M |
| Informed Momentum Co LLC | 0.14% | New | 129,095 | $1.2M |
| Bank of New York Mellon Corp | 0.00% | Add +14.3% | 124,789 | $1.2M |
| Bridgeway Capital Management, LLC | 0.02% | No change | 122,800 | $1.1M |
| Gsa Capital Partners LLP | 0.09% | Reduce -33.1% | 115,203 | $1.1M |
| Cerity Partners LLC | 0.00% | Reduce -0.8% | 108,158 | $1.0M |
| Engineers Gate Manager LP | 0.01% | Add +56.1% | 94,429 | $876K |
| Rhumbline Advisers | 0.00% | Reduce -23.8% | 74,562 | $692K |
| Verition Fund Management LLC | 0.00% | Add +49.8% | 73,619 | $683K |
| Nuveen, LLC | 0.00% | Add +2.3% | 71,143 | $660K |
| XTX Topco Ltd | 0.03% | Reduce -38.6% | 64,653 | $600K |
| Squarepoint Ops LLC | 0.00% | New | 63,306 | $587K |
| Russell Investments Group, Ltd. | 0.00% | Add +10.0% | 60,912 | $565K |
| Manatuck Hill Partners, LLC | 0.19% | New | 60,000 | $557K |
| Gagnon Securities LLC | 0.10% | Add +0.5% | 55,393 | $514K |
| Semanteon Capital Management, LP | 0.63% | New | 54,007 | $501K |
| Penbrook Management LLC | 0.34% | Add +30.6% | 52,025 | $483K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Add +2.9% | 51,956 | $482K |
| Counterpoint Mutual Funds LLC | 0.04% | New | 51,691 | $480K |
| Tudor Investment Corporation | 0.00% | New | 51,257 | $476K |
| Deutsche Bank AG | 0.00% | Add +18.0% | 49,931 | $463K |
| Dimensional Fund Advisors LP | 0.00% | Add +20.9% | 49,730 | $461K |
| UBS Group AG | 0.00% | Reduce -24.1% | 49,219 | $457K |
| FMR LLC | 0.00% | Add +665.0% | 48,392 | $449K |
| Quantbot Technologies LP | 0.01% | Add +161.9% | 45,119 | $419K |
| Round Rock Advisors LLC | 0.07% | New | 39,061 | $410K |
| HSBC Holdings PLC | 0.00% | Reduce -55.2% | 44,576 | $408K |
| Bank of America Corp. | 0.00% | Reduce -49.6% | 41,136 | $382K |
| Invesco Ltd. | 0.00% | Add +101.4% | 40,740 | $378K |
| Virtu Financial LLC | 0.02% | New | 39,799 | $369K |
| NewEdge Advisors, LLC | 0.00% | Reduce -2.7% | 39,024 | $362K |
| Wells Fargo & Company | 0.00% | Add +19.0% | 38,904 | $361K |
| Numerai GP LLC | 0.05% | Add +4.9% | 38,407 | $356K |
| Boothbay Fund Management, LLC | 0.01% | New | 37,466 | $348K |
| Bailard, Inc. | 0.01% | New | 33,900 | $315K |
| MetLife Investment Management, LLC | 0.00% | No change | 33,410 | $310K |
| Checchi Capital Advisers, LLC | 0.02% | No change | 31,070 | $288K |
| Man Group plc | 0.00% | Reduce -66.7% | 29,685 | $275K |
| T. Rowe Price Associates Inc. | 0.00% | Add +7.3% | 28,696 | $267K |
| SG Americas Securities, LLC | 0.00% | New | 28,233 | $262K |
| Intech Investment Management LLC | 0.00% | Reduce -17.3% | 27,182 | $252K |
| Caxton Associates LLP | 0.01% | New | 25,792 | $239K |
| State of Tennessee, Department of Treasury | 0.00% | No change | 25,213 | $234K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -16.1% | 24,598 | $228K |
| Susquehanna International Group, LLP | 0.00% | Reduce -71.5% | 24,517 | $228K |
| Alliancebernstein L.P. | 0.00% | No change | 24,500 | $227K |
| Polymer Capital Management (US) LLC | 0.03% | New | 22,353 | $207K |
| ExodusPoint Capital Management, LP | 0.00% | Reduce -71.5% | 21,615 | $201K |
| Cornerstone Investment Partners, LLC | 0.01% | New | 21,105 | $196K |
| GWN Securities Inc. | 0.04% | New | 20,060 | $186K |
| Zacks Investment Management | 0.00% | No change | 19,900 | $185K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -3.5% | 18,609 | $173K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Add +57.6% | 17,035 | $158K |
| Brevan Howard Capital Management LP | 0.00% | New | 15,436 | $143K |
| Ieq Capital, LLC | 0.00% | New | 14,941 | $139K |
| GAMCO Investors | 0.00% | No change | 14,400 | $134K |
| Blair William & Co. | 0.00% | Reduce -72.6% | 13,194 | $122K |
| Regal Investment Advisors LLC | 0.01% | No change | 11,412 | $106K |
| AlphaQuest LLC | 0.01% | New | 11,383 | $106K |
| New York State Common Retirement Fund | 0.00% | Add +909.1% | 11,100 | $103K |
| Corton Capital Inc. | 0.25% | New | 11,055 | $103K |
| PGIM Custom Harvest LLC | 0.00% | No change | 10,616 | $99K |
| Voya Investment Management LLC | 0.00% | Reduce -32.5% | 10,555 | $98K |
| OMERS ADMINISTRATION Corp | 0.00% | New | 10,400 | $97K |
| Axq Capital, LP | 0.04% | New | 10,322 | $96K |
| Prudential Financial Inc. | 0.00% | New | 10,145 | $94K |
| Gabelli Funds LLC | 0.00% | No change | 10,020 | $93K |
| Summit Trail Advisors, LLC | 0.00% | No change | 10,000 | $93K |
| Cwm, LLC | 0.00% | Reduce -2.3% | 8,754 | $81K |
| Legal & General Group Plc | 0.00% | No change | 5,863 | $54K |
| Global Retirement Partners, LLC | 0.00% | New | 5,015 | $47K |
| Covestor Ltd | 0.02% | Reduce -0.4% | 4,864 | $45K |
| Ameritas Investment Partners, Inc. | 0.00% | Reduce -18.2% | 4,475 | $42K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -18.9% | 4,295 | $40K |
| California State Teachers Retirement System | 0.00% | Add +0.1% | 3,345 | $31K |
| Citigroup Inc. | 0.00% | Reduce -88.0% | 2,275 | $21K |
| Nisa Investment Advisors, LLC | 0.00% | Add +2.2% | 2,200 | $20K |
| Amalgamated Bank | 0.00% | No change | 1,584 | $15K |
| Arax Advisory Partners | 0.00% | New | 1,231 | $11K |
| Chapman Financial Group, LLC | 0.01% | No change | 1,000 | $9K |
| Osaic Holdings, Inc. | 0.00% | Add +1122.2% | 1,100 | $9K |
| Accredited Wealth Management, LLC | 0.01% | New | 22,558 | $7K |
| Federated Hermes, Inc. | 0.00% | New | 645 | $6K |
| True Wealth Design, LLC | 0.00% | Reduce -1.1% | 603 | $6K |
| HM Payson & Co. | 0.00% | No change | 500 | $5K |
| SBI Securities Co., Ltd. | 0.00% | Add +0.2% | 470 | $4K |
| Optiver Holding B.V. | 0.00% | New | 394 | $4K |
| Quarry LP | 0.00% | New | 357 | $3K |
| Essential Partners LLC | 0.00% | Add +44.0% | 350 | $3K |
| Signaturefd, LLC | 0.00% | New | 350 | $3K |
| Royal Bank of Canada | 0.00% | Reduce -99.9% | 373 | $3K |
| Smartleaf Asset Management LLC | 0.00% | Add +365.3% | 228 | $2K |
| Allworth Financial LP | 0.00% | Add +90.8% | 227 | $2K |
| Northwestern Mutual Wealth Management Co. | 0.00% | New | 200 | $2K |
| Marquette Asset Management, LLC | 0.00% | New | 197 | $2K |
| EverSource Wealth Advisors, LLC | 0.00% | Add +150.0% | 195 | $2K |
| Sterling Capital Management LLC | 0.00% | Reduce -0.8% | 130 | $1K |
| Jones Financial Companies LLLP | 0.00% | New | 117 | $1K |
| Rothschild Investment LLC | 0.00% | No change | 100 | $928 |
| Parkside Financial Bank & Trust | 0.00% | No change | 95 | $883 |
| Raffa Wealth Management, LLC | 0.00% | New | 94 | $872 |
| Rise Advisors, LLC | 0.00% | New | 93 | $863 |
| Quadrant Capital Group LLC | 0.00% | New | 70 | $650 |
| Hughes Financial Services, LLC | 0.00% | No change | 111 | $623 |
| GAMMA Investing LLC | 0.00% | Reduce -88.7% | 60 | $557 |
| IFP Advisors, Inc | 0.00% | Add +45.2% | 45 | $418 |
| Sachetta, LLC | 0.00% | No change | 20 | $186 |
| Sunbelt Securities, Inc. | 0.00% | New | 14 | $130 |
"% of holder's portfolio" is BLZE's weight in each manager's 13F, not the share of Backblaze Inc. Class A the manager owns.