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Disclosery

BLZE BACKBLAZE INC

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COMMON STOCK (common), issuer CIK 1462056

141 managers (144 13F filers) reported a position in BLZE shares at 2025-12-31, 32,180,192 shares in all. 27 filers opened a position and 33 filers sold out during the quarter.

Managers
141
13F filers
144
New
27
Added
60
Reduced
39
Sold out
33
Shares held by filers
32,180,192

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, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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.3,740,041$17.4M<0.01%+15,82213F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC3,096,719$14.4M<0.01%+403,21113F-HRTimelineGroup
AWM Investment Company, Inc.3,067,569$14.3M1.38%+3,04313F-HRTimeline
Pillsbury Lake Capital LLC1,729,132$8.06M3.28%13F-HRTimeline
Whetstone Capital Advisors, LLC1,520,055$7.08M2.21%+59,26313F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,341,863$6.25M<0.01%+53,58313F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC1,169,765$5.44M0.01%+835,00713F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,059,890$4.94M<0.01%+2,19613F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…955,643$4.45M0.01%+1,72913F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC810,752$3.78M0.01%+393,93613F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC652,675$3.04M<0.01%-217,57513F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding627,973$2.93M+131,650Timeline
Qube Research & Technologies Ltd614,715$2.86M<0.01%+327,05713F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO605,925$2.82M<0.01%+254,26813F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.567,803$2.65M<0.01%new13F-HRTimelineGroup
OBERWEIS ASSET MANAGEMENT INC/552,023$2.57M0.09%+13,32313F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC516,311$2.41M0.18%new13F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.469,066$2.19M<0.01%+105,11513F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC200,422$2.07M0.01%-3,12713F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY440,647$2.05M<0.01%-73,08313F-HR/ATimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP418,270$1.95M<0.01%-14,96313F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC377,672$1.76M<0.01%+212,55813F-HR/ATimelineGroup
P.A.W. CAPITAL CORP300,000$1.4M3.17%+10,00013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC299,847$1.4M<0.01%+74,92813F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP299,218$1.39M0.12%+184,01513F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC298,151$1.39M<0.01%+41,36213F-HRTimelineGroup
CastleKnight Management LP293,300$1.37M0.08%+80,90013F-HRTimeline
PERKINS CAPITAL MANAGEMENT INC278,775$1.3M1.03%-1,25013F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC269,663$1.26M0.03%+232,19713F-HRTimeline
TUDOR INVESTMENT CORP ET AL269,615$1.26M0.01%+218,35813F-HRTimeline
NANO CAP NEW MILLENNIUM GROWTH FUND L P250,000$1.17M0.99%13F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP225,111$1.05M<0.01%-222,55013F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP205,127$956K<0.01%+155,39713F-HRTimelineGroup
Trexquant Investment LP204,280$952K0.01%-23,25213F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …192,628$898K<0.01%-287,65313F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp191,667$893K<0.01%+66,87813F-HRTimelineGroup
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…180,184$840K0.06%new13F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC178,901$834K<0.01%+23,91213F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding173,945$811K+124,726Timeline
BARCLAYS PLCin group BARCLAYS PLC173,391$808K<0.01%+5,10113F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co162,387$757K<0.01%-8913F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …150,000$712K<0.01%new13F-HRTimelineGroup
Baader Bank Aktiengesellschaft150,000$699K0.06%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC140,062$653K<0.01%-320,14213F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd126,694$590K0.02%+62,04113F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC125,384$584K<0.01%-4,19013F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC122,900$573K<0.01%-47,01213F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC118,475$552K<0.01%+10,31713F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…105,185$490K<0.01%+80,66813F-HRTimelineGroup
PDT Partners, LLC103,976$485K0.03%-27,19013F-HRTimeline
Numerai GP LLC98,425$459K0.06%+60,01813F-HRTimeline
Round Rock Advisors LLC91,406$426K0.06%+52,34513F-HR/ATimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC85,480$398K<0.01%+22,17413F-HRTimelineGroup
Engineers Gate Manager LP75,061$350K<0.01%-19,36813F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS72,626$338K<0.01%-92,69913F-HRTimelineGroup
Penbrook Management LLC71,350$332K0.23%+19,32513F-HRTimeline
Nuveen, LLCin group TIAA71,143$332K<0.01%013F-HRTimelineGroup
PANAGORA ASSET MANAGEMENT INC68,655$320K<0.01%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…67,367$314K<0.01%+6,45513F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN66,331$309K<0.01%+27,42713F-HRTimelineGroup
RHUMBLINE ADVISERS66,141$308K<0.01%-8,42113F-HRTimeline
Graham Capital Management, L.P.57,295$267K0.01%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/55,438$258K<0.01%+14,30213F-HRTimelineGroup
Dynamic Technology Lab Private Ltd53,180$247K0.06%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\51,773$241K<0.01%+1,84213F-HRTimelineGroup
FMR LLCin group FMR LLC48,573$226K<0.01%+18113F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD47,200$220K<0.01%new13F-HRTimeline
Cambridge Investment Research Advisors,…44,926$209K<0.01%-7,03013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.44,103$206K<0.01%+3,36313F-HRTimelineGroup
Verition Fund Management LLC42,129$196K<0.01%-31,49013F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC41,100$192K<0.01%-231,42413F-HRTimelineGroup
PharVision Advisers, LLC36,502$170K0.09%new13F-HRTimeline
STONERIDGE INVESTMENT PARTNERS LLC36,518$170K0.12%new13F-HRTimeline
ALLIANCEBERNSTEIN L.P.33,200$155K<0.01%+8,70013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/32,219$151K<0.01%+3,52313F-HRTimeline
Checchi Capital Advisers, LLC31,070$145K0.01%013F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd28,164$131K<0.01%new13F-HRTimelineGroup
Aquatic Capital Management LLC27,661$129K<0.01%new13F-HRTimeline
State of Wyoming26,301$123K0.01%new13F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…25,608$119K<0.01%+1,01013F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC24,686$117K<0.01%-19,89013F-HR/ATimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…24,990$116K<0.01%-8,42013F-HRTimelineGroup
GAMCO Investors (Gabelli)group of 2 filers holding24,420$114K0Timeline
Quantbot Technologies LP23,786$111K<0.01%-21,33313F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC22,694$106K<0.01%-4,48813F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC20,800$96.9K<0.01%-102,00013F-HRTimeline
ZACKS INVESTMENT MANAGEMENT19,900$92.7K<0.01%013F-HRTimeline
Brooklyn Investment Group18,667$89.2K<0.01%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …17,472$81.4K<0.01%-1,13713F-HRTimelineGroup
AlphaQuest LLC16,925$78.9K<0.01%+5,54213F-HRTimeline
Regal Investment Advisors LLC16,145$75.2K<0.01%+4,73313F-HRTimeline
GLOBEFLEX CAPITAL L P14,141$65.9K0.01%new13F-HRTimeline
SG Americas Securities, LLC13,943$65K<0.01%-14,29013F-HRTimeline
Police & Firemen's Retirement System of…13,560$63.2K<0.01%-3,47513F-HRTimeline
AXQ CAPITAL, LP12,193$56.8K0.01%+1,87113F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC11,503$54K<0.01%-28,29613F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND11,100$51.7K<0.01%013F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC10,670$49.7K<0.01%+52513F-HRTimelineGroup
PGIM Custom Harvest LLCin group PGIM INVESTMENTS LLC10,616$49.5K<0.01%013F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC10,555$49.2K<0.01%013F-HRTimelineGroup
M&T Bank Corpin group M&T Bank Corp10,479$48.8K<0.01%new13F-HR/ATimelineGroup
OXFORD ASSET MANAGEMENT LLP10,121$47.2K0.02%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
ProShare Advisors LLC10,079$47K<0.01%new13F-HRTimeline
Summit Trail Advisors, LLC10,000$46.6K<0.01%013F-HRTimeline
GROUP ONE TRADING LLC9,771$45.5K<0.01%new13F-HRTimeline
NewEdge Advisors, LLC8,078$37.6K<0.01%-30,94613F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…6,922$32.3K<0.01%+2,62713F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc5,761$26.8K<0.01%-10213F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA5,551$26K<0.01%+5,17813F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…4,976$23.2K<0.01%new13F-HR/ATimelineGroup
Covestor Ltd4,864$23K0.01%013F-HRTimeline
SIMPLEX TRADING, LLC4,642$21.6K<0.01%new13F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,475$20.9K<0.01%013F-HRTimelineGroup
CWM, LLCin group CWM, LLC3,716$17K<0.01%-5,03813F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…3,395$15.8K<0.01%+5013F-HRTimeline
Quarry LP2,695$12.6K<0.01%+2,33813F-HRTimeline
NISA INVESTMENT ADVISORS, LLC2,062$9.61K<0.01%-13813F-HRTimeline
AMALGAMATED BANK1,733$8K<0.01%+14913F-HRTimeline
Meramec Financial Planners, LLC1,850$7.58K<0.01%13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC1,607$7.49K<0.01%-66813F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,500$6.99K<0.01%+40013F-HRTimelineGroup
Farther Finance Advisors, LLC1,024$4.77K<0.01%new13F-HRTimeline
CHAPMAN FINANCIAL GROUP, LLC1,000$4.66K<0.01%013F-HRTimeline
GAMMA Investing LLC748$3.49K<0.01%+68813F-HRTimeline
Smartleaf Asset Management LLC545$2.59K<0.01%+31713F-HRTimeline
HM PAYSON & CO500$2.33K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.469$2.19K<0.01%-113F-HRTimeline
True Wealth Design, LLC387$1.8K<0.01%-21613F-HRTimeline
Sterling Capital Management LLC369$1.72K<0.01%+23913F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.362$1.69K<0.01%-3213F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…238$1.11K<0.01%+4313F-HRTimelineGroup
Essential Partners LLC175$816<0.01%-17513F-HRTimeline
Allworth Financial LP146$681<0.01%-8113F-HRTimeline
ROTHSCHILD INVESTMENT LLC122$569<0.01%+2213F-HRTimeline
Rialto Wealth Management, LLC111$518<0.01%new13F-HRTimeline
Parkside Financial Bank & Trust95$443<0.01%013F-HRTimeline
IFP Advisors, Inc46$214<0.01%+113F-HRTimeline
SageView Advisory Group, LLC39$182<0.01%new13F-HRTimeline
Sachetta, LLC20$94<0.01%013F-HRTimeline
Arax Advisory Partners9$42<0.01%-1,22213F-HRTimeline
MAI Capital Management2$10<0.01%new13F-HRTimeline