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Public ownership evidence

Backblaze, Inc. Class A Common Stock (BLZE) Ownership Disclosures

Read BLZE insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-14T23:32:50.005Z

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2026-08-252026-08-21Budman GlebS12,855Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-08-21 and its public availability date is 2026-08-25. Subtracting those calendar dates gives 4 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001628280-26-058708 ↗SEC 0001628280-26-058707 ↗13F 0001081019-26-000020 ↗

Recent Form 4 activity

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2026-08-252026-08-21Budman GlebS12,855Not reported
2026-08-252026-08-21Suidan MarcS2,110Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25789$12,514None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2512,514$789,000None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2028,167$446,729None
Kultura Capital Management LP2026-06-302026-08-15167,100$2,650,206Call
SEI INVESTMENTS CO2026-06-302026-08-1576,147$1,207,691None
Basecamp Wealth Advisors LLC2026-06-302026-08-1522$349None
SCALAR GAUGE MANAGEMENT, LLC2026-06-302026-08-1575,000$1,189,500None
Integrated Quantitative Investments LLC2026-06-302026-08-1544,212$701,202None
XTX Topco Ltd2026-06-302026-08-1580,281$1,273,257None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15169,718$2,691,727None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15169,718$2,691,727None
Foundations Investment Advisors, LLC2026-06-302026-08-1530,000$475,800None
Qube Research & Technologies Ltd2026-06-302026-08-15766,200$12,151,932None
OSAIC HOLDINGS, INC.2026-06-302026-08-154,125$65,422None
Schonfeld Strategic Advisors LLC2026-06-302026-08-1512,087$191,698None
Squarepoint Ops LLC2026-06-302026-08-15155,417$2,464,914None
Trexquant Investment LP2026-06-302026-08-15226,095$3,585,867None
MetLife Investment Management, LLC2026-06-302026-08-1534,041$539,890None
JANE STREET GROUP, LLC2026-06-302026-08-1539,300$623,298Put
JANE STREET GROUP, LLC2026-06-302026-08-15226,300$3,589,118Call
Regal Partners Ltd2026-06-302026-08-15163,076$2,586,385None
PDT Partners, LLC2026-06-302026-08-1548,780$773,651None
BOOTHBAY FUND MANAGEMENT, LLC2026-06-302026-08-15242,386$3,844,242None
AWM Investment Company, Inc.2026-06-302026-08-151,400,166$22,206,633None
Legal & General Group Plc2026-06-302026-08-155,688$90,212None
HRT FINANCIAL LP2026-06-302026-08-15195,120$3,094,000None
Verition Fund Management LLC2026-06-302026-08-1515,300$242,658Call
Verition Fund Management LLC2026-06-302026-08-1515,300$242,658Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15336,800$5,341,648Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1544,100$699,426Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1586,641$1,374,126None
Pillsbury Lake Capital LLC2026-06-302026-08-151,339,837$21,249,815None
NANO CAP NEW MILLENNIUM GROWTH FUND L P2026-06-302026-08-1550,000$793,000None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-15495,435$7,857,599None
Scientech Research LLC2026-06-302026-08-15112,471$1,783,790None
LAZARD ASSET MANAGEMENT LLC2026-06-302026-08-15297,138$4,712,609None
Balyasny Asset Management L.P.2026-06-302026-08-15533$8,453None
Balyasny Asset Management L.P.2026-06-302026-08-1593,384$1,481,070None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-15150$2,184None
AMERIPRISE FINANCIAL INC2026-06-302026-08-15156,927$2,488,863None
MAI Capital Management2026-06-302026-08-151,726$27,374None
MAI Capital Management2026-06-302026-08-159,694$153,747None
Cerity Partners LLC2026-06-302026-08-1511,582$183,691None
Cerity Partners LLC2026-06-302026-08-15136,110$2,158,705None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1555$872None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-155,627$89,244None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-151,021,312$16,198,008None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15422$6,693None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-152,254$35,748None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1532$508None

90-day public filing window, up to 50 source positions.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗MERCER GLOBAL ADVISORS INC /ADV ↗Kultura Capital Management LP ↗SEI INVESTMENTS CO ↗Basecamp Wealth Advisors LLC ↗SCALAR GAUGE MANAGEMENT, LLC ↗Integrated Quantitative Investments LLC ↗XTX Topco Ltd ↗CHARLES SCHWAB INVESTMENT MANAGEMENT INC ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.