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Disclosery

BLZE BACKBLAZE INC

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COMMON STOCK (common), issuer CIK 1462056

148 managers (150 13F filers) reported a position in BLZE shares at 2025-09-30, 30,000,770 shares in all. 40 filers opened a position and 21 filers sold out during the quarter.

Managers
148
13F filers
150
New
40
Added
50
Reduced
37
Sold out
21
Shares held by filers
30,000,770

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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.3,724,219$34.6M<0.01%+132,83513F-HRTimelineGroup
AWM Investment Company, Inc.3,064,526$28.4M2.67%013F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC2,693,508$25M<0.01%+134,03413F-HRTimelineGroup
WASATCH ADVISORS LP1,834,205$17M0.09%new13F-HRTimeline
Whetstone Capital Advisors, LLC1,460,792$13.6M3.75%+265,91313F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,288,280$12M<0.01%+119,72213F-HRTimelineGroup
First Eagle Investment Management, LLCin group First Eagle Investment Manage…1,133,740$10.5M0.02%-23,65013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,057,694$9.82M<0.01%+215,21413F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…953,914$8.85M0.03%+159,32413F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC870,250$8.08M0.01%+99,37513F-HRTimelineGroup
OBERWEIS ASSET MANAGEMENT INC/538,700$5M0.19%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY513,730$4.77M<0.01%+174,31113F-HR/ATimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding496,323$4.61M+295,706Timeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …480,281$4.46M<0.01%+299,67213F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC460,204$4.27M<0.01%+256,42313F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP447,661$4.15M<0.01%-203,54113F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP433,233$4.02M<0.01%+25,59013F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC416,816$3.87M0.01%-21,10013F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.363,951$3.38M<0.01%+321,67913F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO351,657$3.26M<0.01%+172,16513F-HR/ATimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC334,758$3.1M0.01%+207,29213F-HRTimelineGroup
P.A.W. CAPITAL CORP290,000$2.69M4.88%-80,00013F-HRTimeline
Qube Research & Technologies Ltd287,658$2.67M<0.01%-142,98413F-HRTimeline
PERKINS CAPITAL MANAGEMENT INC280,025$2.6M2.29%-5,50013F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC272,524$2.53M0.03%+169,49113F-HR/ATimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC256,789$2.38M<0.01%-32,67213F-HRTimelineGroup
Shannon River Fund Management LLC229,384$2.13M0.34%new13F-HRTimeline
Trexquant Investment LP227,532$2.11M0.02%+126,23713F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC224,919$2.09M<0.01%new13F-HRTimelineGroup
CastleKnight Management LP212,400$1.97M0.11%013F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC203,549$1.89M0.01%-66,01013F-HRTimeline
Cubist Systematic Strategies, LLC183,649$1.7M0.02%+60,03713F-HRTimeline
ALGERT GLOBAL LLC180,346$1.67M0.03%+103,53113F-HR/ATimeline
D.A. DAVIDSON & CO.179,156$1.66M0.01%-18313F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC169,912$1.58M<0.01%+25,62213F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC168,290$1.56M<0.01%-25,72213F-HR/ATimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS165,325$1.53M<0.01%+109,08013F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC165,114$1.53M<0.01%-21,11613F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co162,476$1.51M<0.01%+9,29613F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC154,989$1.44M<0.01%new13F-HRTimelineGroup
PDT Partners, LLC131,166$1.22M0.08%013F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC129,574$1.2M<0.01%-16,98913F-HRTimelineGroup
Informed Momentum Co LLC129,095$1.2M0.14%new13F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp124,789$1.16M<0.01%+15,61113F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC122,800$1.14M0.02%013F-HRTimeline
GSA CAPITAL PARTNERS LLP115,203$1.07M0.09%-57,07013F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC108,158$1M<0.01%-84313F-HRTimelineGroup
Engineers Gate Manager LP94,429$876K0.01%+33,94313F-HRTimeline
RHUMBLINE ADVISERS74,562$692K<0.01%-23,27813F-HRTimeline
Verition Fund Management LLC73,619$683K<0.01%+24,48413F-HRTimeline
Nuveen, LLCin group TIAA71,143$660K<0.01%+1,60813F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd64,653$600K0.03%-40,59013F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC63,306$587K<0.01%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…60,912$565K<0.01%+5,52313F-HRTimelineGroup
Manatuck Hill Partners, LLC60,000$557K0.19%new13F-HRTimeline
GAGNON SECURITIES LLCin group GAGNON SECURITIES LLC55,393$514K0.1%+26413F-HRTimelineGroup
Semanteon Capital Management, LP54,007$501K0.63%new13F-HRTimeline
Penbrook Management LLC52,025$483K0.34%+12,20013F-HRTimeline
Cambridge Investment Research Advisors,…51,956$482K<0.01%+1,45013F-HRTimeline
Counterpoint Mutual Funds LLC51,691$480K0.04%new13F-HRTimeline
TUDOR INVESTMENT CORP ET AL51,257$476K<0.01%new13F-HR/ATimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\49,931$463K<0.01%+7,62013F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP49,730$461K<0.01%+8,59013F-HRTimelineGroup
UBS Group AGin group UBS Group AG49,219$457K<0.01%-15,61313F-HRTimelineGroup
FMR LLCin group FMR LLC48,392$449K<0.01%+42,06613F-HRTimelineGroup
Quantbot Technologies LP45,119$419K0.01%+27,89513F-HRTimeline
Round Rock Advisors LLC39,061$410K0.06%new13F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC44,576$408K<0.01%-54,89613F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/41,136$382K<0.01%-40,51113F-HR/ATimelineGroup
Invesco Ltd.in group Invesco Ltd.40,740$378K<0.01%+20,51413F-HRTimelineGroup
Virtu Financial LLCin group Virtu Financial LLC39,799$369K0.02%new13F-HRTimelineGroup
NewEdge Advisors, LLC39,024$362K<0.01%-1,06513F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN38,904$361K<0.01%+6,22213F-HRTimelineGroup
Numerai GP LLC38,407$356K0.05%+1,79313F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC37,466$348K0.01%new13F-HRTimeline
BAILARD, INC.33,900$315K0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…33,410$310K<0.01%013F-HRTimelineGroup
Checchi Capital Advisers, LLC31,070$288K0.02%013F-HRTimeline
Man Group plcin group Man Group plc29,685$275K<0.01%-59,38813F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/28,696$267K<0.01%+1,96313F-HRTimeline
SG Americas Securities, LLC28,233$262K<0.01%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC27,182$252K<0.01%-5,69713F-HRTimeline
CAXTON ASSOCIATES LLP25,792$239K0.01%new13F-HRTimeline
State of Tennessee, Department of Treas…25,213$234K<0.01%013F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…24,598$228K<0.01%-4,72513F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…24,517$228K<0.01%-61,36613F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.24,500$227K<0.01%013F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding24,420$227K0Timeline
Polymer Capital Management (US) LLC22,353$207K0.03%new13F-HRTimeline
ExodusPoint Capital Management, LP21,615$201K<0.01%-54,23913F-HRTimeline
Cornerstone Investment Partners, LLC21,105$196K0.01%new13F-HRTimeline
GWN SECURITIES INC.20,060$186K0.04%new13F-HRTimeline
ZACKS INVESTMENT MANAGEMENT19,900$185K<0.01%013F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …18,609$173K<0.01%-68313F-HRTimelineGroup
Police & Firemen's Retirement System of…17,035$158K<0.01%+6,22513F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…15,436$143K<0.01%new13F-HRTimelineGroup
IEQ CAPITAL, LLC14,941$139K<0.01%new13F-HRTimeline
BLAIR WILLIAM & CO/IL13,194$122K<0.01%-35,00013F-HRTimeline
Regal Investment Advisors LLC11,412$106K0.01%013F-HRTimeline
AlphaQuest LLC11,383$106K0.01%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND11,100$103K<0.01%+10,00013F-HRTimeline
Corton Capital Inc.11,055$103K0.25%new13F-HRTimeline
PGIM Custom Harvest LLCin group PGIM INVESTMENTS LLC10,616$98.5K<0.01%013F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC10,555$98K<0.01%-5,07613F-HRTimelineGroup
OMERS ADMINISTRATION Corp10,400$96.5K<0.01%new13F-HRTimeline
AXQ CAPITAL, LP10,322$95.8K0.04%new13F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC10,145$94.1K<0.01%new13F-HRTimelineGroup
Summit Trail Advisors, LLC10,000$92.8K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC8,754$81K<0.01%-20313F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc5,863$54.4K<0.01%013F-HRTimelineGroup
Global Retirement Partners, LLC5,015$46.5K<0.01%new13F-HRTimeline
Covestor Ltd4,864$45K0.02%-2013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,475$41.5K<0.01%-99413F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…4,295$39.9K<0.01%-99813F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…3,345$31K<0.01%+313F-HRTimeline
CITIGROUP INCin group CITIGROUP INC2,275$21.1K<0.01%-16,74313F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC2,200$20.4K<0.01%+4813F-HRTimeline
AMALGAMATED BANK1,584$15K<0.01%013F-HRTimeline
Arax Advisory Partners1,231$11.4K<0.01%new13F-HRTimeline
CHAPMAN FINANCIAL GROUP, LLC1,000$9.28K0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,100$9.19K<0.01%+1,01013F-HRTimelineGroup
Accredited Wealth Management, LLC22,558$6.96K0.01%new13F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.645$5.99K<0.01%new13F-HRTimelineGroup
True Wealth Design, LLC603$5.6K<0.01%-713F-HRTimeline
HM PAYSON & CO500$4.64K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.470$4.36K<0.01%+113F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.394$3.66K<0.01%new13F-HRTimelineGroup
Quarry LP357$3.31K<0.01%new13F-HRTimeline
SIGNATUREFD, LLC350$3.25K<0.01%new13F-HRTimeline
Essential Partners LLC350$3.25K<0.01%+10713F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA373$3K<0.01%-583,38913F-HRTimelineGroup
Smartleaf Asset Management LLC228$2.2K<0.01%+17913F-HRTimeline
Allworth Financial LP227$2.11K<0.01%+10813F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…200$1.86K<0.01%new13F-HRTimelineGroup
Marquette Asset Management, LLC197$1.83K<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…195$1.81K<0.01%+11713F-HRTimelineGroup
Sterling Capital Management LLC130$1.21K<0.01%-113F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP117$1.12K<0.01%new13F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC100$928<0.01%013F-HRTimeline
Parkside Financial Bank & Trust95$883<0.01%013F-HRTimeline
RAFFA WEALTH MANAGEMENT, LLC94$872<0.01%new13F-HRTimeline
Rise Advisors, LLC93$863<0.01%new13F-HRTimeline
QUADRANT CAPITAL GROUP LLC70$650<0.01%new13F-HRTimeline
Hughes Financial Services, LLC111$623<0.01%013F-HRTimeline
GAMMA Investing LLC60$557<0.01%-46913F-HRTimeline
IFP Advisors, Inc45$418<0.01%+1413F-HR/ATimeline
Sachetta, LLC20$186<0.01%013F-HRTimeline
Sunbelt Securities, Inc.14$130<0.01%new13F-HRTimeline