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Disclosery

BLZE BACKBLAZE INC

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COMMON STOCK (common), issuer CIK 1462056

134 managers (138 13F filers) reported a position in BLZE shares at 2026-03-31, 29,050,737 shares in all. 22 filers opened a position and 31 filers sold out during the quarter.

Managers
134
13F filers
138
New
22
Added
43
Reduced
46
Sold out
31
Shares held by filers
29,050,737

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.3,683,899$12.7M<0.01%-56,14213F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding3,463,625$11.9MnewTimeline
Pillsbury Lake Capital LLC1,961,283$6.77M3.07%+232,15113F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC1,638,568$5.65M0.01%+468,80313F-HRTimelineGroup
Whetstone Capital Advisors, LLC1,520,055$5.24M1.97%013F-HRTimeline
AWM Investment Company, Inc.1,400,166$4.83M0.53%-1,667,40313F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,345,193$4.64M<0.01%+3,33013F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC1,172,657$4.05M0.01%+361,90513F-HRTimeline
STATE STREET CORPin group STATE STREET CORP1,112,650$3.84M<0.01%+52,76013F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…833,272$2.87M0.01%-122,37113F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.739,033$2.55M<0.01%+269,96713F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC663,511$2.29M<0.01%+540,61113F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.540,594$1.87M<0.01%-27,20913F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP517,586$1.79M<0.01%+312,45913F-HRTimelineGroup
PRELUDE CAPITAL MANAGEMENT, LLC474,006$1.64M0.13%-42,30513F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP433,408$1.5M<0.01%+15,13813F-HRTimelineGroup
Qube Research & Technologies Ltd432,351$1.49M<0.01%-182,36413F-HRTimeline
P.A.W. CAPITAL CORP360,000$1.24M0.99%+60,00013F-HR/ATimeline
BOOTHBAY FUND MANAGEMENT, LLC356,663$1.23M0.03%+87,00013F-HRTimeline
PERKINS CAPITAL MANAGEMENT INC339,025$1.17M1.1%+60,25013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC317,685$1.1M<0.01%-59,98713F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC304,905$1.05M<0.01%+164,84313F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding304,081$1.05M+130,136Timeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …300,504$1.04M<0.01%+107,87613F-HRTimelineGroup
NANO CAP NEW MILLENNIUM GROWTH FUND L P295,000$1.02M0.95%+45,00013F-HRTimeline
CastleKnight Management LP293,300$1.01M0.05%013F-HRTimeline
TUDOR INVESTMENT CORP ET AL221,379$764K<0.01%-48,23613F-HRTimeline
GSA CAPITAL PARTNERS LLP191,049$659K0.04%-108,16913F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp180,515$623K<0.01%-11,15213F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC177,883$614K<0.01%-1,01813F-HR/ATimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC174,576$602K<0.01%new13F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC160,333$553K<0.01%-137,81813F-HRTimelineGroup
Numerai GP LLC160,298$553K0.06%+61,87313F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY158,923$548K<0.01%-281,72413F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC145,975$504K<0.01%+27,50013F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO135,468$448K<0.01%-470,45713F-HR/ATimelineGroup
XTX Topco Ltdin group XTX Topco Ltd126,355$436K0.01%-33913F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC123,351$426K<0.01%-529,32413F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co121,268$418K<0.01%-41,11913F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC98,380$339K<0.01%-75,01113F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…96,585$333K<0.01%-8,60013F-HRTimelineGroup
IEQ CAPITAL, LLC92,929$321K<0.01%new13F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC85,800$296K0.01%+65,00013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC75,964$262K<0.01%-223,88313F-HRTimelineGroup
Penbrook Management LLC72,150$249K0.19%+80013F-HRTimeline
Nuveen, LLCin group TIAA71,143$245K<0.01%013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…68,006$235K<0.01%+63913F-HRTimelineGroup
RHUMBLINE ADVISERS66,927$231K<0.01%+78613F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP61,555$212K<0.01%-163,55613F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\58,734$203K<0.01%+6,96113F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC58,586$202K<0.01%+17,48613F-HRTimelineGroup
Engineers Gate Manager LP55,934$193K<0.01%-19,12713F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/53,991$186K<0.01%-1,44713F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS49,237$170K<0.01%-23,38913F-HRTimelineGroup
PDT Partners, LLC48,780$168K0.01%-55,19613F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD47,200$163K<0.01%013F-HRTimeline
FMR LLCin group FMR LLC47,143$163K<0.01%-1,43013F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.45,471$157K<0.01%+1,36813F-HRTimelineGroup
Cambridge Investment Research Advisors,…44,926$155K<0.01%013F-HRTimeline
ALLIANCEBERNSTEIN L.P.33,200$155K<0.01%013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/44,059$153K<0.01%+11,84013F-HRTimeline
CWM, LLCin group CWM, LLC42,946$148K<0.01%+39,23013F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC42,095$145K<0.01%new13F-HRTimelineGroup
Centiva Capital, LP40,231$139K0.01%new13F-HRTimeline
STONERIDGE INVESTMENT PARTNERS LLC36,518$126K0.09%013F-HRTimeline
Quantbot Technologies LP32,591$112K<0.01%+8,80513F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC32,035$111K<0.01%-53,44513F-HRTimelineGroup
Checchi Capital Advisers, LLC31,070$107K0.01%013F-HRTimeline
State of Wyoming30,980$107K0.01%+4,67913F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…26,282$90.7K<0.01%+67413F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN25,452$87.8K<0.01%-40,87913F-HR/ATimelineGroup
EntryPoint Capital, LLC24,691$85.2K0.02%new13F-HRTimeline
R Squared Ltd24,436$84.3K0.05%new13F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding24,420$84.2K0Timeline
ZACKS INVESTMENT MANAGEMENT19,900$68.7K<0.01%013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…18,407$67K<0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…19,006$65.6K<0.01%-5,98413F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO17,341$59.8K<0.01%new13F-HRTimelineGroup
Regal Investment Advisors LLC16,686$57.6K<0.01%+54113F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …16,409$56.6K<0.01%-1,06313F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC16,144$55.7K<0.01%-109,24013F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV15,553$53.7K<0.01%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP15,300$52.8K<0.01%-415,87313F-HRTimelineGroup
Voleon Capital Management LP15,237$52.6K<0.01%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC15,100$52.1K<0.01%-7,59413F-HRTimeline
PANAGORA ASSET MANAGEMENT INC14,398$49.7K<0.01%-54,25713F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…14,378$49.6K<0.01%new13F-HRTimelineGroup
Police & Firemen's Retirement System of…13,560$46.8K<0.01%013F-HRTimeline
OXFORD ASSET MANAGEMENT LLP12,617$43.5K0.02%+2,49613F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Creative Planningin group Creative Planning11,167$38.5K<0.01%new13F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND11,100$38.3K<0.01%013F-HRTimeline
PGIM Custom Harvest LLCin group PGIM INVESTMENTS LLC10,616$36.6K<0.01%013F-HRTimelineGroup
M&T Bank Corpin group M&T Bank Corp10,479$36.2K<0.01%013F-HR/ATimelineGroup
CAPTRUST FINANCIAL ADVISORS10,315$35.6K<0.01%new13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC10,044$34.7K<0.01%-51113F-HRTimelineGroup
Summit Trail Advisors, LLC10,000$34.5K<0.01%013F-HRTimeline
GROUP ONE TRADING LLC8,671$29.9K<0.01%-1,10013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…6,227$21.5K<0.01%-69513F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…5,289$18.2K<0.01%+31313F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc4,985$17.2K<0.01%-77613F-HRTimelineGroup
Covestor Ltd4,864$17K0.01%013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,475$15.4K<0.01%013F-HRTimelineGroup
Essential Partners LLC4,234$14.6K<0.01%+4,05913F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.4,000$13.8K<0.01%+2,50013F-HRTimelineGroup
NewEdge Advisors, LLC3,368$11.6K<0.01%-4,71013F-HR/ATimeline
CITIGROUP INCin group CITIGROUP INC2,986$10.3K<0.01%+1,37913F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…2,985$10.3K<0.01%-41013F-HRTimeline
Meramec Financial Planners, LLC1,850$7.64K<0.01%013F-HRTimeline
SIMPLEX TRADING, LLC1,749$6.03K<0.01%-2,89313F-HRTimeline
IFP Advisors, Inc1,569$5.41K<0.01%+1,52313F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,536$5.3K<0.01%+1,29813F-HR/ATimelineGroup
CHAPMAN FINANCIAL GROUP, LLC1,000$3.45K<0.01%013F-HRTimeline
Allworth Financial LP939$3.24K<0.01%+79313F-HRTimeline
Marquette Asset Management, LLC762$2.63K<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA510$2K<0.01%-5,04113F-HRTimelineGroup
HM PAYSON & CO500$1.73K<0.01%013F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.374$1.29K<0.01%+1213F-HR/ATimelineGroup
Sterling Capital Management LLC369$1.27K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.369$1.27K<0.01%-10013F-HRTimeline
Root Financial Partners, LLC309$1.07K<0.01%new13F-HRTimeline
Farther Finance Advisors, LLC280$1K<0.01%-74413F-HRTimeline
GAMMA Investing LLC280$966<0.01%-46813F-HRTimeline
Arax Advisory Partners314$942<0.01%+30513F-HRTimeline
ROTHSCHILD INVESTMENT LLC236$814<0.01%+11413F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…226$780<0.01%new13F-HRTimelineGroup
MAI Capital Management209$722<0.01%+20713F-HRTimeline
True Wealth Design, LLC203$701<0.01%-18413F-HRTimeline
Caitong International Asset Management …199$687<0.01%new13F-HRTimeline
Wealth Preservation Advisors, LLC118$407<0.01%new13F-HRTimeline
Basecamp Wealth Advisors LLC41$141<0.01%new13F-HRTimeline
SJS Investment Consulting Inc.36$125<0.01%new13F-HRTimeline
Sunbelt Securities, Inc.31$107<0.01%new13F-HRTimeline
Advisory Services Network, LLC27$93<0.01%new13F-HRTimeline
Sachetta, LLC20$69<0.01%013F-HRTimeline