Backblaze, Inc. BLZE
CIK 0001462056 · CUSIP 05637B105
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $34.56M 3,724,219 shares | 0.00% | +132.84K(+3.70%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 02 | AWM Investment Company, Inc. CIK 1535264 · View history | $28.44M 3,064,526 shares | 2.67% | 0(0.00%)Unchanged | SEC filing ↗ Nov 13, 2025 | ▾ |
| 03 | VANGUARD GROUP INC CIK 102909 · View history | $25.00M 2,693,508 shares | 0.00% | +134.03K(+5.20%)Added | SEC filing ↗ Nov 7, 2025 | ▾ |
| 04 | WASATCH ADVISORS LP CIK 814133 · View history | $17.02M 1,834,205 shares | 0.09% | +1.83MNew | SEC filing ↗ Nov 14, 2025 | ▾ |
| 05 | Whetstone Capital Advisors, LLC CIK 1607278 · View history | $13.56M 1,460,792 shares | 3.75% | +265.91K(+22.30%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 06 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $11.96M 1,288,280 shares | 0.00% | +119.72K(+10.20%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 07 | First Eagle Investment Management, LLC CIK 1325447 · View history | $10.52M 1,133,740 shares | 0.02% | -23.65K(-2.00%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 08 | STATE STREET CORP CIK 93751 · View history | $9.82M 1,057,694 shares | 0.00% | +215.21K(+25.50%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 09 | Connor, Clark & Lunn Investment Management Ltd. CIK 1596800 · View history | $8.85M 953,914 shares | 0.03% | +159.32K(+20.10%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 10 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $8.08M 870,250 shares | 0.01% | +99.38K(+12.90%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 11 | OBERWEIS ASSET MANAGEMENT INC/ CIK 937886 · View history | $5.00M 538,700 shares | 0.19% | 0(0.00%)Unchanged | SEC filing ↗ Nov 17, 2025 | ▾ |
| 12 | MORGAN STANLEY CIK 895421 · Amended · View history | $4.77M 513,730 shares | 0.00% | +174.31K(+51.40%)Added | SEC filing ↗ May 27, 2026 | ▾ |
| 13 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history | $4.46M 480,281 shares | 0.00% | +299.67K(+165.90%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 14 | CITADEL ADVISORS LLC CIK 1423053 · View history | $4.27M 460,204 shares | 0.00% | +256.42K(+125.80%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 15 | MARSHALL WACE, LLP CIK 1318757 · View history | $4.15M 447,661 shares | 0.00% | -203.54K(-31.30%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 16 | NORTHERN TRUST CORP CIK 73124 · View history | $4.02M 433,233 shares | 0.00% | +25.59K(+6.30%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 17 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $3.87M 416,816 shares | 0.01% | -21.10K(-4.80%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 18 | D. E. Shaw & Co., Inc. CIK 1009207 · View history | $3.38M 363,951 shares | 0.00% | +321.68K(+761.00%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 19 | JPMORGAN CHASE & CO CIK 19617 · Amended · View history | $3.26M 351,657 shares | 0.00% | +172.16K(+95.90%)Added | SEC filing ↗ Nov 26, 2025 | ▾ |
| 20 | TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history | $3.18M 342,323 shares | 0.00% | +210.81K(+160.30%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
Showing 20 / 150 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 150 reporting institutions.
This page includes 20 of 150 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 150 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"05637B105","quarter":"2025Q3","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.