BLZE · Backblaze, Inc. · Shareholders & Ownership

$9.34 +0.17 (+1.85%) At close · Oct 21

Russell 2000 member Rebalance outlook locked

Market Cap

$578.15M

61.90M

Volume · Oct 21 4.47M Avg daily vol (3M) 2.42M

Every disclosed holder of BLZE in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns BLZE

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	172	36,485,050	58.94%	Yes
Insiders (Forms 3, 4, 5)	0	0	0.00%	No
13D/G-only blocks	5	9,620,104	15.54%	Yes
Remaining	—	15,794,846	25.52%	Rest
Registered funds (N-PORT, not summed)	130	10,120,132	16.35%	No

Shares outstanding: 61,900,000, the issuer's latest cover-page count restated onto today's split basis.

Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of BLZE

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	4,722,483	7.63%	+1,038,584	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	BlackRock, Inc. 13G CIK 2012383 · Holding company · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	4,507,571	7.28%	+1,619,061	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
1.2	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	1,542,302	2.49%	+200,825	Jun 30, 2026	iShares Trust, not summed
1.3	iShares Russell 2000 Growth ETF Fund S000004343 · Registered fund · Jun 30, 2026 iShares Trust, not summed	550,848	0.89%	+103,007	Jun 30, 2026	iShares Trust, not summed
1.4	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	196,223	0.32%	+54,976	Jun 30, 2026	iShares Trust, not summed
1.5	Master Small Cap Index Series Fund S000002716 · Registered fund · Jun 30, 2026 Quantitative Master Series LLC, not summed	109,645	0.18%	+9,890	Jun 30, 2026	Quantitative Master Series LLC, not summed
2	Driehaus Capital Management LLC 13F CIK 938206 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,688,044	4.34%	+2,688,044	Jun 30, 2026	carried, not yet filed for the newest quarter
2.1	Driehaus Micro Cap Growth Fund Fund S000042829 · Registered fund · Jun 30, 2026 Driehaus Mutual Funds, not summed	422,893	0.68%	—	Jun 30, 2026	Driehaus Mutual Funds, not summed
3	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,514,639	4.06%	+170,192	Jun 30, 2026	carried, not yet filed for the newest quarter
4	Budman Gleb Insider CIK 1857850 · Aug 21, 2026 Director, CEO and Chairperson, issuer-wide, not summed	2,192,103	3.54%	-23,938	Aug 21, 2026	Director, CEO and Chairperson, issuer-wide, not summed
4.1	Gleb Budman 13G CIK 1857850 · Unknown · Dec 31, 2023 Rule 13d-1(d), exempt investor	1,791,720	2.89%	—	Dec 31, 2023	Rule 13d-1(d), exempt investor
5	Brian Wilson 13G CIK 1858925 · Unknown · Dec 31, 2023 Rule 13d-1(d), exempt investor	2,064,321	3.33%	—	Dec 31, 2023	Rule 13d-1(d), exempt investor
6	Timothy Nufire 13G CIK 1858923 · Unknown · Dec 31, 2023 Rule 13d-1(d), exempt investor	2,064,321	3.33%	—	Dec 31, 2023	Rule 13d-1(d), exempt investor
7	Kwok Hang Ng 13G CIK 1882791 · Unknown · Dec 31, 2023 Rule 13d-1(d), exempt investor	1,935,271	3.13%	—	Dec 31, 2023	Rule 13d-1(d), exempt investor
8	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,786,402	2.89%	+147,834	Jun 30, 2026	carried, not yet filed for the newest quarter
9	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	1,768,455	2.86%	+128,000	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
10	Charles Jones 13G CIK 1882808 · Unknown · Dec 31, 2023 Rule 13d-1(d), exempt investor	1,764,471	2.85%	—	Dec 31, 2023	Rule 13d-1(d), exempt investor
11	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,525,097	2.46%	+179,904	Jun 30, 2026	carried, not yet filed for the newest quarter
12	AWM Investment Company, Inc. 13F CIK 1535264 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,400,166	2.26%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
13	Pillsbury Lake Capital LLC 13F CIK 2111915 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,339,837	2.16%	-621,446	Jun 30, 2026	carried, not yet filed for the newest quarter
14	Halter Ferguson Financial Inc. 13F CIK 1842665 · Registered investment adviser · Sep 30, 2026	1,266,421	2.05%	+808,668	Sep 30, 2026
15	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,216,998	1.97%	+104,348	Jun 30, 2026	carried, not yet filed for the newest quarter
15.1	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	19,100	0.03%	-1,900	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
15.2	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	1,338	0.00%	0	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
15.3	State Street Balanced Index Fund Fund S000082802 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	475	0.00%	0	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
16	Connor, Clark & Lunn Investment Management Ltd. 13F CIK 1596800 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,156,752	1.87%	+323,480	Jun 30, 2026	carried, not yet filed for the newest quarter
17	AQR CAPITAL MANAGEMENT LLC 13F CIK 1167557 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,051,847	1.70%	+388,336	Jun 30, 2026	carried, not yet filed for the newest quarter
18	Qube Research & Technologies Ltd 13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	766,200	1.24%	+333,849	Jun 30, 2026	carried, not yet filed for the newest quarter
19	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	762,608	1.23%	-410,049	Jun 30, 2026	carried, not yet filed for the newest quarter
20	NEXT CENTURY GROWTH INVESTORS LLC 13F CIK 1134007 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	687,498	1.11%	+687,498	Jun 30, 2026	carried, not yet filed for the newest quarter
21	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	677,927	1.10%	+27,339	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
22	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	628,636	1.02%	+111,050	Jun 30, 2026	carried, not yet filed for the newest quarter
22.1	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	198,202	0.32%	0	Jul 31, 2026	Dimensional ETF Trust, not summed
22.2	U.S. SMALL CAP PORTFOLIO Fund S000000971 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	160,994	0.26%	+42,212	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
22.3	U.S. MICRO CAP PORTFOLIO Fund S000000948 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	129,860	0.21%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
22.4	Dimensional U.S. Equity Market ETF Fund S000070902 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	11,141	0.02%	—	Jul 31, 2026	Dimensional ETF Trust, not summed
22.5	Dimensional U.S. Core Equity 2 ETF Fund S000070903 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	8,211	0.01%	+2,700	Jul 31, 2026	Dimensional ETF Trust, not summed
23	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	613,784	0.99%	-94,103	Jun 30, 2026	carried, not yet filed for the newest quarter
24	Nuveen, LLC 13F CIK 1871926 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	577,841	0.93%	+506,698	Jun 30, 2026	carried, not yet filed for the newest quarter
24.1	Nuveen Quant Small Cap Equity Fund Fund S000005386 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	351,330	0.57%	—	Jul 31, 2026	TIAA-CREF Funds, not summed
24.2	College Retirement Equities Fund - Total Global Stock Account Fund S000005080 · Registered fund · Jun 30, 2026 College Retirement Equities Fund, not summed	82,780	0.13%	—	Jun 30, 2026	College Retirement Equities Fund, not summed
24.3	Nuveen Small Cap Blend Index Fund Fund S000005367 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	77,428	0.13%	+7,893	Jul 31, 2026	TIAA-CREF Funds, not summed
24.4	Nuveen Equity Index Fund Fund S000005360 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	40,500	0.07%	—	Jul 31, 2026	TIAA-CREF Funds, not summed
24.5	Nuveen Life Small Cap Equity Fund Fund S000005093 · Registered fund · Jun 30, 2026 TIAA-CREF Life Funds, not summed	7,244	0.01%	—	Jun 30, 2026	TIAA-CREF Life Funds, not summed
25	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 13F CIK 1164508 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	550,070	0.89%	+249,566	Jun 30, 2026	carried, not yet filed for the newest quarter
26	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	495,435	0.80%	+372,084	Jun 30, 2026	carried, not yet filed for the newest quarter
27	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	483,598	0.78%	+50,190	Jun 30, 2026	carried, not yet filed for the newest quarter
27.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	30,075	0.05%	+7,333	Jun 30, 2026	Northern Funds, not summed
28	Jump Financial, LLC 13F CIK 1831577 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	469,100	0.76%	+410,514	Jun 30, 2026	carried, not yet filed for the newest quarter
29	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	468,330	0.76%	+150,645	Jun 30, 2026	carried, not yet filed for the newest quarter
29.1	Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF Fund S000048296 · Registered fund · May 31, 2026 Goldman Sachs ETF Trust, not summed	76,831	0.12%	+1,021	May 31, 2026	Goldman Sachs ETF Trust, not summed
29.2	Goldman Sachs Absolute Return Tracker Fund Fund S000020314 · Registered fund · Jun 30, 2026 GOLDMAN SACHS TRUST, not summed	15,039	0.02%	-3,131	Jun 30, 2026	GOLDMAN SACHS TRUST, not summed
29.3	Goldman Sachs Small Cap Growth Insights Fund Fund S000014930 · Registered fund · Jul 31, 2026 Goldman Sachs Trust, not summed	8,219	0.01%	-63,003	Jul 31, 2026	Goldman Sachs Trust, not summed
29.4	Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund Fund S000009355 · Registered fund · Jun 30, 2026 Goldman Sachs Variable Insurance Trust, not summed	2,738	0.00%	—	Jun 30, 2026	Goldman Sachs Variable Insurance Trust, not summed
30	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	423,644	0.68%	+35,050	Jun 30, 2026	carried, not yet filed for the newest quarter
31	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	407,911	0.66%	+248,988	Jun 30, 2026	carried, not yet filed for the newest quarter
32	FMR LLC 13F CIK 315066 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	354,493	0.57%	+307,350	Jun 30, 2026	carried, not yet filed for the newest quarter
32.1	Fidelity Small Cap Index Fund Fund S000033638 · Registered fund · Jul 31, 2026 Fidelity Salem Street Trust, not summed	641,319	1.04%	+85,416	Jul 31, 2026	Fidelity Salem Street Trust, not summed
32.2	Fidelity Extended Market Index Fund Fund S000006021 · Registered fund · May 31, 2026 Fidelity Concord Street Trust, not summed	299,774	0.48%	+75,485	May 31, 2026	Fidelity Concord Street Trust, not summed
32.3	Fidelity Enhanced Small Cap Core ETF Fund S000081807 · Registered fund · Jun 30, 2026 Fidelity Covington Trust, not summed	269,953	0.44%	—	Jun 30, 2026	Fidelity Covington Trust, not summed
32.4	Fidelity Total Market Index Fund Fund S000006026 · Registered fund · May 31, 2026 Fidelity Concord Street Trust, not summed	110,680	0.18%	0	May 31, 2026	Fidelity Concord Street Trust, not summed
32.5	Fidelity Series Total Market Index Fund Fund S000065248 · Registered fund · May 31, 2026 Fidelity Concord Street Trust, not summed	87,487	0.14%	+4,375	May 31, 2026	Fidelity Concord Street Trust, not summed
33	Suidan Marc Insider CIK 1924949 · Aug 21, 2026 CHIEF FINANCIAL OFFICER, issuer-wide, not summed	349,518	0.56%	-13,193	Aug 21, 2026	CHIEF FINANCIAL OFFICER, issuer-wide, not summed
34	P.A.W. CAPITAL CORP 13F CIK 949853 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	320,000	0.52%	-40,000	Jun 30, 2026	carried, not yet filed for the newest quarter
35	PRELUDE CAPITAL MANAGEMENT, LLC 13F CIK 1387508 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	316,851	0.51%	-157,155	Jun 30, 2026	carried, not yet filed for the newest quarter
36	MARSHALL WACE, LLP 13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	316,341	0.51%	+254,786	Jun 30, 2026	carried, not yet filed for the newest quarter
37	PERKINS CAPITAL MANAGEMENT INC 13F CIK 884300 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	308,725	0.50%	-30,300	Jun 30, 2026	carried, not yet filed for the newest quarter
37.1	Perkins Discovery Fund Fund S000038882 · Registered fund · Mar 31, 2026 World Funds Trust, not summed	30,000	0.05%	0	Mar 31, 2026	World Funds Trust, not summed
38	LAZARD ASSET MANAGEMENT LLC 13F CIK 1207017 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	297,138	0.48%	+136,805	Jun 30, 2026	carried, not yet filed for the newest quarter
39	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · May 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	288,743	0.47%	+16,498	May 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
40	RAYMOND JAMES FINANCIAL INC 13F CIK 720005 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	249,686	0.40%	+233,542	Jun 30, 2026	carried, not yet filed for the newest quarter
41	TUDOR INVESTMENT CORP ET AL 13F CIK 923093 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	244,903	0.40%	+23,524	Jun 30, 2026	carried, not yet filed for the newest quarter
42	JPMORGAN CHASE & CO 13F CIK 19617 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	243,341	0.39%	+107,873	Jun 30, 2026	carried, not yet filed for the newest quarter
43	BOOTHBAY FUND MANAGEMENT, LLC 13F CIK 1549230 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	242,386	0.39%	-114,277	Jun 30, 2026	carried, not yet filed for the newest quarter
44	Spraggins Daniel Insider CIK 2112128 · Mar 10, 2026 Senior VP of Engineering, issuer-wide, not summed	234,220	0.38%	+234,220	Mar 10, 2026	Senior VP of Engineering, issuer-wide, not summed
45	Trexquant Investment LP 13F CIK 1633445 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	226,095	0.37%	+226,095	Jun 30, 2026	carried, not yet filed for the newest quarter
46	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	215,721	0.35%	-88,360	Jun 30, 2026	carried, not yet filed for the newest quarter
47	NORGES BANK 13F CIK 1374170 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	215,400	0.35%	—	Jun 30, 2026	carried, not yet filed for the newest quarter
48	SMALL COMPANY GROWTH PORTFOLIO Fund S000004394 · Registered fund · Jun 30, 2026 VANGUARD VARIABLE INSURANCE FUNDS, not summed	208,177	0.34%	-108,266	Jun 30, 2026	VANGUARD VARIABLE INSURANCE FUNDS, not summed
49	HRT FINANCIAL LP 13F CIK 1475597 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	195,120	0.32%	+195,120	Jun 30, 2026	carried, not yet filed for the newest quarter
50	Bank of New York Mellon Corp 13F CIK 1390777 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	193,812	0.31%	+13,297	Jun 30, 2026	carried, not yet filed for the newest quarter

24 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 249 holders

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Key facts CIK 1462056 CUSIP 05637B105 13F (30d) 17 filings 17 filers Visit website Investor relations