BACKBLAZE INC (BLZE)
Institutional ownership reported to the SEC as of Q2 2026, across 19 quarters.
169
Reporting holders
$558.8M
Reported value
54.9%
Of shares outstanding
3.7%
Held as options
+37
Holder change
Institutions report 33,978,221 shares against 61,900,000 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $74.9M | 4,722,483 | 0.00% | 8q | +28.2%+$16.5M |
| Driehaus Capital Management LLC | $42.6M | 2,688,044 | 0.25% | new | NEW |
| VANGUARD CAPITAL MANAGEMENT LLC | $39.9M | 2,514,639 | 0.00% | 2q | +7.3%+$2.7M |
| GEODE CAPITAL MANAGEMENT, LLC | $24.2M | 1,525,097 | 0.00% | 19q | +13.4%+$2.9M |
| AWM Investment Company, Inc. | $22.2M | 1,400,166 | 1.93% | 8q | HELD |
| Pillsbury Lake Capital LLC | $21.2M | 1,339,837 | 5.80% | 3q | -31.7%-$9.9M |
| STATE STREET CORP | $19.3M | 1,216,998 | 0.00% | 18q | +9.4%+$1.7M |
| Connor, Clark & Lunn Investment Management Ltd. | $18.3M | 1,156,752 | 0.03% | 13q | +38.8%+$5.1M |
| AQR CAPITAL MANAGEMENT LLC | $16.7M | 1,051,847 | 0.01% | 6q | +58.5%+$6.2M |
| Qube Research & Technologies Ltd | $12.2M | 766,200 | 0.01% | 12q | +77.2%+$5.3M |
| RENAISSANCE TECHNOLOGIES LLC | $12.1M | 762,608 | 0.02% | 18q | -35.0%-$6.5M |
| NEXT CENTURY GROWTH INVESTORS LLC | $10.9M | 687,498 | 0.58% | new | NEW |
| P.A.W. CAPITAL CORP | $10.2M | 640,000 | 3.89% | 7q | -11.1%-$1.3M |
| DIMENSIONAL FUND ADVISORS LP | $10.0M | 628,636 | 0.00% | 13q | +21.5%+$1.8M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $9.7M | 613,784 | 0.00% | 2q | -13.3%-$1.5M |
| Nuveen, LLC | $9.2M | 577,841 | 0.00% | 6q | +712.2%+$8.0M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $8.7M | 550,070 | 0.00% | 5q | +83.0%+$4.0M |
| MILLENNIUM MANAGEMENT LLC | $7.9M | 495,435 | 0.00% | 12q | +301.6%+$5.9M |
| NORTHERN TRUST CORP | $7.7M | 483,598 | 0.00% | 19q | +11.6%+$796.0K |
| Jump Financial, LLC | $7.4M | 469,100 | 0.06% | 5q | +700.7%+$6.5M |
| GOLDMAN SACHS GROUP INC | $7.4M | 468,330 | 0.00% | 18q | +47.4%+$2.4M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $7.4M | 86,641 | 0.00% | 12q | -10.3%-$851.1K |
| Halter Ferguson Financial Inc. | $7.3M | 457,753 | 1.18% | new | NEW |
| VANGUARD FIDUCIARY TRUST CO | $6.7M | 423,644 | 0.00% | 2q | +9.0%+$555.9K |
| MORGAN STANLEY | $6.5M | 407,911 | 0.00% | 19q | +156.7%+$3.9M |
| FMR LLC | $5.6M | 354,493 | 0.00% | 10q | +652.0%+$4.9M |
| PRELUDE CAPITAL MANAGEMENT, LLC | $5.0M | 316,851 | 0.37% | 3q | -33.2%-$2.5M |
| MARSHALL WACE, LLP | $5.0M | 316,341 | 0.00% | 12q | +413.9%+$4.0M |
| PERKINS CAPITAL MANAGEMENT INC | $4.9M | 308,725 | 3.68% | 16q | -8.9%-$480.6K |
| LAZARD ASSET MANAGEMENT LLC | $4.7M | 297,138 | 0.01% | 12q | +85.3%+$2.2M |
| JANE STREET GROUP, LLC | $4.2M | options only | 0.00% | 4q | OPTIONS |
| RAYMOND JAMES FINANCIAL INC | $4.0M | 249,686 | 0.00% | 7q | +1446.6%+$3.7M |
| TUDOR INVESTMENT CORP ET AL | $3.9M | 244,903 | 0.01% | 4q | +10.6%+$373.1K |
| BOOTHBAY FUND MANAGEMENT, LLC | $3.8M | 242,386 | 0.05% | 4q | -32.0%-$1.8M |
| JPMORGAN CHASE & CO | $3.6M | 243,341 | 0.00% | 14q | +79.6%+$1.6M |
| Trexquant Investment LP | $3.6M | 226,095 | 0.02% | new | NEW |
| UBS Group AG | $3.4M | 215,721 | 0.00% | 13q | -29.1%-$1.4M |
| NORGES BANK | $3.4M | 215,400 | 0.00% | new | NEW |
| Bank of New York Mellon Corp | $3.1M | 193,812 | 0.00% | 9q | +7.4%+$210.9K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.7M | 169,718 | 0.00% | 11q | +40.0%+$768.4K |
| Sixth Street Partners Management Company, L.P. | $2.7M | 169,718 | 0.00% | new | NEW |
| Kultura Capital Management LP | $2.7M | options only | 0.48% | new | OPTIONS |
| Regal Partners Ltd | $2.6M | 163,076 | 0.14% | new | NEW |
| AMERIPRISE FINANCIAL INC | $2.5M | 156,927 | 0.00% | 4q | -55.9%-$3.2M |
| Squarepoint Ops LLC | $2.5M | 155,417 | 0.00% | 4q | +385.1%+$2.0M |
| Jupiter Topco LLC | $2.4M | 151,038 | 0.00% | new | FIRST |
| Cerity Partners LLC | $2.3M | 147,692 | 0.00% | 8q | +1.2%+$27.2K |
| CITADEL ADVISORS LLC | $2.3M | options only | 0.00% | 19q | OPTIONS |
| SIMPLEX TRADING, LLC | $2.1M | 69,591 | 0.00% | 3q | +3878.9%+$2.1M |
| IEQ CAPITAL, LLC | $2.1M | 132,416 | 0.01% | 2q | +42.5%+$626.3K |
| FRANKLIN RESOURCES INC | $2.0M | 128,852 | 0.00% | new | NEW |
| TWO SIGMA INVESTMENTS, LP | $2.0M | 123,213 | 0.00% | 12q | +705.3%+$1.7M |
| IMC-Chicago, LLC | $1.9M | options only | 0.00% | 2q | OPTIONS |
| Scientech Research LLC | $1.8M | 112,471 | 1.45% | new | NEW |
| BANK OF AMERICA CORP /DE/ | $1.6M | 102,510 | 0.00% | 15q | +89.9%+$769.5K |
| GROUP ONE TRADING LLC | $1.6M | options only | 0.00% | 6q | OPTIONS |
| Balyasny Asset Management L.P. | $1.5M | 93,917 | 0.00% | new | NEW |
| Informed Momentum Co LLC | $1.4M | 89,497 | 0.13% | new | NEW |
| CastleKnight Management LP | $1.4M | 86,100 | 0.02% | 12q | -70.6%-$3.3M |
| XTX Topco Ltd | $1.3M | 80,281 | 0.02% | 10q | -36.5%-$730.7K |
| SEI INVESTMENTS CO | $1.2M | 76,147 | 0.00% | 2q | +339.1%+$932.7K |
| SCALAR GAUGE MANAGEMENT, LLC | $1.2M | 75,000 | 0.66% | new | NEW |
| Mariner, LLC | $1.2M | 73,779 | 0.00% | 2q | +75.3%+$502.5K |
| RHUMBLINE ADVISERS | $1.1M | 71,694 | 0.00% | 13q | +7.1%+$75.6K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $1.1M | 69,800 | 0.02% | 17q | -18.6%-$253.8K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $995.8K | 62,784 | 0.00% | new | NEW |
| DEUTSCHE BANK AG\ | $924.7K | 58,306 | 0.00% | 9q | -0.7%-$6.8K |
| WELLS FARGO & COMPANY/MN | $915.1K | 57,699 | 0.00% | 15q | +13.3%+$107.8K |
| Cetera Investment Advisers | $909.7K | 57,296 | 0.00% | new | NEW |
| ZACKS INVESTMENT MANAGEMENT | $894.3K | 56,388 | 0.01% | 5q | +183.4%+$578.7K |
| MERCER GLOBAL ADVISORS INC /ADV | $893.5K | 56,334 | 0.00% | 2q | +262.2%+$646.8K |
| Penbrook Management LLC | $851.7K | 53,700 | 0.54% | 7q | -25.6%-$292.6K |
| Brevan Howard Capital Management LP | $816.6K | 51,485 | 0.01% | 2q | +258.1%+$588.5K |
| D. E. Shaw & Co., Inc. | $795.4K | 50,150 | 0.00% | 11q | -93.2%-$10.9M |
| BARCLAYS PLC | $793.1K | 50,004 | 0.00% | 18q | -49.2%-$767.2K |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | $793.0K | 50,000 | 0.61% | 3q | -83.1%-$3.9M |
| BNP PARIBAS FINANCIAL MARKETS | $792.1K | 49,943 | 0.00% | 7q | +1.4%+$11.2K |
| PDT Partners, LLC | $773.7K | 48,780 | 0.04% | 9q | HELD |
| Integrated Quantitative Investments LLC | $701.2K | 44,212 | 0.11% | new | NEW |
| Quadrature Capital Ltd | $686.8K | 43,307 | 0.01% | new | NEW |
| BAILARD, INC. | $672.5K | 42,400 | 0.01% | new | NEW |
| Walleye Trading LLC | $668.1K | 42,124 | 0.00% | new | NEW |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | $646.2K | 36,718 | 0.00% | 2q | +99.5%+$322.3K |
| Quantbot Technologies LP | $577.8K | 36,432 | 0.02% | 5q | +11.8%+$60.9K |
| CANADA PENSION PLAN INVESTMENT BOARD | $574.1K | 36,200 | 0.00% | 3q | -23.3%-$174.5K |
| MetLife Investment Management, LLC | $539.9K | 34,041 | 0.00% | 9q | +79.1%+$238.5K |
| Cornerstone Investment Partners, LLC | $518.3K | 32,677 | 0.02% | new | NEW |
| FULLER & THALER ASSET MANAGEMENT, INC. | $505.4K | 31,867 | 0.00% | new | NEW |
| Invesco Ltd. | $504.0K | 31,779 | 0.00% | 10q | -30.1%-$217.2K |
| Verition Fund Management LLC | $485.3K | options only | 0.00% | new | OPTIONS |
| Foundations Investment Advisors, LLC | $475.8K | 30,000 | 0.00% | new | NEW |
| SLT Holdings LLC | $475.8K | 30,000 | 0.30% | new | NEW |
| AMERICAN CENTURY COMPANIES INC | $474.2K | 29,899 | 0.00% | new | NEW |
| Belvedere Trading LLC | $471.4K | 7,522 | 0.00% | new | NEW |
| CITIGROUP INC | $442.2K | 27,882 | 0.00% | 12q | +833.8%+$394.9K |
| Creative Planning | $440.2K | 27,758 | 0.00% | 2q | +148.6%+$263.1K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $428.5K | 27,015 | 0.00% | 8q | +2.8%+$11.6K |
| Walleye Capital LLC | $423.6K | 4,908 | 0.00% | new | NEW |
| Merit Financial Group, LLC | $415.3K | 26,186 | 0.00% | new | NEW |
| STATE OF WISCONSIN INVESTMENT BOARD | $372.2K | 23,468 | 0.00% | new | NEW |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-07-27 | 13G/A | BlackRock, Inc. | 7.5% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 169 | $558.8M | 33,978,221 | 59 | 64 | 33 | 3.7% |
| Q1 2026 | 132 | $96.1M | 27,650,639 | 22 | 41 | 42 | 0.7% |
| Q4 2025 | 135 | $150.1M | 30,586,473 | 27 | 51 | 32 | 4.3% |
| Q3 2025 | 143 | $280.2M | 30,168,891 | 37 | 43 | 35 | 0.7% |
| Q2 2025 | 122 | $148.5M | 26,955,710 | 29 | 55 | 23 | 0.5% |
| Q1 2025 | 102 | $110.2M | 22,697,875 | 16 | 45 | 24 | 0.6% |
| Q4 2024 | 108 | $128.2M | 21,225,887 | 22 | 42 | 17 | 0.3% |
| Q3 2024 | 95 | $94.0M | 14,579,430 | 18 | 34 | 23 | 0.9% |
| Q2 2024 | 87 | $81.0M | 12,822,419 | 22 | 21 | 27 | 2.5% |
| Q1 2024 | 86 | $138.0M | 12,576,572 | 26 | 32 | 15 | 6.8% |
| Q4 2023 | 64 | $64.2M | 8,411,362 | 14 | 27 | 8 | 0.6% |
| Q3 2023 | 50 | $30.8M | 5,563,171 | 21 | 19 | 3 | 0.7% |
| Q2 2023 | 32 | $13.5M | 3,097,372 | 9 | 9 | 9 | 0.6% |
| Q1 2023 | 26 | $14.4M | 2,791,841 | 5 | 10 | 5 | 1.9% |
| Q4 2022 | 23 | $15.0M | 2,357,861 | 3 | 9 | 5 | 3.4% |
| Q3 2022 | 34 | $22.3M | 4,141,468 | 7 | 12 | 3 | 7.7% |
| Q2 2022 | 29 | $18.7M | 3,328,441 | 4 | 6 | 8 | 6.9% |
| Q1 2022 | 29 | $35.3M | 3,210,388 | 7 | 8 | 10 | 2.8% |
| Q4 2021 | 36 | $62.4M | 3,636,356 | 38 | 0 | 0 | 1.5% |