BLZE · Backblaze, Inc.

$13.40 -0.13 (-0.96%)

Russell 2000 member Rebalance outlook locked

Market Cap

$874.65M

61.90M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Quarter:

Holders: 173

Total Value: $580,109,725

Total Shares: 36,577,349

Showing 1–100 of 181 holdings by value · page 1 of 2

Institutional Ownership Trend

19 quarters

Holder Concentration

Across 173 13F filers · Δ vs Mar 31, 2026

Top Holder

12.9%

+0.3 pts

Top 5

36.2%

−2.0 pts

Top 10

53.0%

−5.2 pts

HHI

414

Broadly held−45

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +34

Institutional value: +475.4%

Shares held: +25.2%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega BlackRock, Inc.	+1,038,584	4,722,483
Mega Nuveen, LLC	+506,698	577,841
Mid Jump Financial, LLC	+410,514	469,100
Mega AQR CAPITAL MANAGEMENT LLC	+388,336	1,051,847
Mega MILLENNIUM MANAGEMENT LLC	+372,084	495,435

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mega D. E. Shaw & Co., Inc.	−688,883	50,150
Small Pillsbury Lake Capital LLC	−621,446	1,339,837
Large RENAISSANCE TECHNOLOGIES LLC	−410,049	762,608
Small NANO CAP NEW MILLENNIUM GROWTH FUND L P	−245,000	50,000
Mid CastleKnight Management LP	−207,200	86,100

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Large Driehaus Capital Management LLC	2,688,044	$42,632,377
Mid NEXT CENTURY GROWTH INVESTORS LLC	687,498	$10,903,718
Small Halter Ferguson Financial Inc.	457,753	$7,259,962
Large Trexquant Investment LP	226,095	$3,585,866
Mega NORGES BANK	215,400	$3,416,244

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Small Whetstone Capital Advisors, LLC	1,520,055	$5,244,189
Large Point72 Asset Management, L.P.	540,594	$1,865,049
Mid GSA CAPITAL PARTNERS LLP	191,049	$659,119
Large JACOBS LEVY EQUITY MANAGEMENT, INC	174,576	$602,287
Mid Numerai GP LLC	160,298	$553,028

Filter: New 60 Increased 70 Reduced 33 Sold out 26 Unchanged 10

Showing 100 of 181

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

BlackRock, Inc.

$74,898,577

12.91%

4,722,483

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	91,968	$1,458,612	1.9%	Sole
BlackRock Asset Management Canada Ltd	8	$126	0.0%	Sole
BlackRock Investment Management, LLC	174,497	$2,767,522	3.7%	Sole
BLACKROCK ADVISORS LLC	133,991	$2,125,097	2.8%	Sole
BlackRock Fund Advisors	2,414,885	$38,300,076	51.1%	Sole
BlackRock Institutional Trust Company, N.A.	1,849,343	$29,330,579	39.2%	Sole
Aperio Group, LLC	57,791	$916,565	1.2%	Sole

Driehaus Capital Management LLC

$42,632,377

7.35%

2,688,044

VANGUARD CAPITAL MANAGEMENT LLC

$39,882,174

6.87%

2,514,639

ACADIAN ASSET MANAGEMENT LLC

$28,332,335

4.88%

1,786,402

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	1,786,402	$28,332,335	100.0%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$24,188,037

4.17%

1,525,097

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	214,482	$3,401,684	14.1%	Defined
Held directly	1,310,615	$20,786,353	85.9%	Defined

AWM Investment Company, Inc.

$22,206,632

3.83%

1,400,166

Pillsbury Lake Capital LLC

$21,249,814

3.66%

1,339,837

STATE STREET CORP

$19,301,588

3.33%

1,216,998

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	1,216,998	$19,301,588	100.0%	Defined

Connor, Clark & Lunn Investment Management Ltd.

$18,346,086

3.16%

1,156,752

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	1,156,752	$18,346,086	100.0%	Sole

AQR CAPITAL MANAGEMENT LLC

$16,682,289

2.88%

1,051,847

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Petros Family Wealth, LLC	9	$142	0.0%	Other
KEB ASSET MANAGEMENT, LLC	55	$872	0.0%	Other
RF&L WEALTH MANAGEMENT, LLC	32	$507	0.0%	Other
Prism Planning Partners LLC	422	$6,692	0.0%	Other
Compound Planning, Inc.	3	$47	0.0%	Other
Arax Advisory Partners	22,133	$351,029	2.1%	Other
HALBERT HARGROVE GLOBAL ADVISORS, LLC	5,627	$89,244	0.5%	Other
Stokes Family Office, LLC	2,254	$35,748	0.2%	Other
Held directly	1,021,312	$16,198,008	97.1%	Defined

Qube Research & Technologies Ltd

$12,151,932

2.09%

766,200

RENAISSANCE TECHNOLOGIES LLC

$12,094,962

2.08%

762,608

NEXT CENTURY GROWTH INVESTORS LLC

$10,903,718

1.88%

687,498

DIMENSIONAL FUND ADVISORS LP

$9,970,166

1.72%

628,636

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	4,050	$64,233	0.6%	Defined
DFA Australia Ltd.	11,463	$181,803	1.8%	Defined
Dimensional Ireland Ltd	17,106	$271,301	2.7%	Defined
Held directly	596,017	$9,452,829	94.8%	Sole

VANGUARD PORTFOLIO MANAGEMENT LLC

$9,734,614

1.68%

613,784

Nuveen, LLC

$9,164,556

1.58%

577,841

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Nuveen Asset Management, LLC joint	16,951	$268,842	2.9%	Defined
TIAA CREF INVESTMENT MANAGEMENT LLC joint	82,780	$1,312,890	14.3%	Defined
TEACHERS ADVISORS, LLC joint	478,110	$7,582,824	82.7%	Defined

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

$8,724,110

1.50%

550,070

MILLENNIUM MANAGEMENT LLC

$7,857,599

1.35%

495,435

NORTHERN TRUST CORP

$7,669,863

1.32%

483,598

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	474,382	$7,523,698	98.1%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	9,216	$146,165	1.9%	Other

Jump Financial, LLC

$7,439,926

1.28%

469,100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Leap GP LLC joint	469,100	$7,439,926	100.0%	Defined

GOLDMAN SACHS GROUP INC

$7,427,713

1.28%

468,330

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	266,373	$4,224,675	56.9%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	201,957	$3,203,038	43.1%	Defined

Halter Ferguson Financial Inc.

$7,259,962

1.25%

457,753

VANGUARD FIDUCIARY TRUST CO

$6,718,993

1.16%

423,644

MORGAN STANLEY

$6,469,465

1.12%

407,911

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	252	$3,996	0.1%	Defined
MORGAN STANLEY & CO. LLC	265,780	$4,215,270	65.2%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	90,457	$1,434,648	22.2%	Defined
MORGAN STANLEY SMITH BARNEY LLC	2,692	$42,695	0.7%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	48,730	$772,856	11.9%	Defined

FMR LLC

$5,622,258

0.97%

354,493

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	353,769	$5,610,776	99.8%	Defined
STRATEGIC ADVISERS LLC	724	$11,482	0.2%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$5,341,648

0.92%

336,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	336,800	$5,341,648	100.0%	Other

P.A.W. CAPITAL CORP

$5,075,200

0.87%

320,000

PRELUDE CAPITAL MANAGEMENT, LLC

$5,025,256

0.87%

316,851

MARSHALL WACE, LLP

$5,017,167

0.86%

316,341

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	316,341	$5,017,167	100.0%	Other

PERKINS CAPITAL MANAGEMENT INC

$4,896,378

0.84%

308,725

LAZARD ASSET MANAGEMENT LLC

$4,712,608

0.81%

297,138

RAYMOND JAMES FINANCIAL INC

$3,960,019

0.68%

249,686

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	907	$14,385	0.4%	Defined
Raymond James Financial Services Advisors, Inc.	15,918	$252,459	6.4%	Defined
ClariVest Asset Management LLC joint	232,861	$3,693,175	93.3%	Defined

TUDOR INVESTMENT CORP ET AL

$3,884,161

0.67%

244,903

JPMORGAN CHASE & CO

$3,859,387

0.67%

243,341

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	24,316	$385,651	10.0%	Defined
J.P. Morgan Investment Management Inc.	721	$11,435	0.3%	Defined
J.P. Morgan Securities LLC	218,005	$3,457,559	89.6%	Defined
J.P. Morgan Securities plc	299	$4,742	0.1%	Defined

BOOTHBAY FUND MANAGEMENT, LLC

$3,844,241

0.66%

242,386

JANE STREET GROUP, LLC

$3,589,118

0.62%

226,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	226,300	$3,589,118	100.0%	Defined

Trexquant Investment LP

$3,585,866

0.62%

226,095

UBS Group AG

$3,421,335

0.59%

215,721

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	100	$1,586	0.0%	Defined
UBS AG	215,621	$3,419,749	100.0%	Defined

NORGES BANK

$3,416,244

0.59%

215,400

HRT FINANCIAL LP

$3,094,603

0.53%

195,120

Bank of New York Mellon Corp

$3,073,856

0.53%

193,812

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	35,453	$562,284	18.3%	Defined
The Bank of New York Mellon	114,234	$1,811,751	58.9%	Defined
BNY Mellon, NA joint	285	$4,520	0.1%	Defined
Newton Investment Management North America, LLC	43,838	$695,270	22.6%	Defined
Held directly	2	$31	0.0%	Defined

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$2,691,727

0.46%

169,718

Kultura Capital Management LP

$2,650,206

0.46%

167,100

Regal Partners Ltd

$2,586,385

0.45%

163,076

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Regal Partners Funds Management Pty Ltd	163,076	$2,586,385	100.0%	Defined

AMERIPRISE FINANCIAL INC

$2,488,862

0.43%

156,927

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Columbia Management Investment Advisers, LLC	156,927	$2,488,862	100.0%	Defined

Squarepoint Ops LLC

$2,464,913

0.42%

155,417

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	155,417	$2,464,913	100.0%	Defined

Jupiter Topco LLC

$2,395,462

0.41%

151,038

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JANUS HENDERSON INVESTORS US LLC	151,038	$2,395,462	100.0%	Defined

Cerity Partners LLC

$2,342,394

0.40%

147,692

IEQ CAPITAL, LLC

$2,100,117

0.36%

132,416

FRANKLIN RESOURCES INC

$2,043,591

0.35%

128,852

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
FIDUCIARY TRUST INTERNATIONAL LLC	444	$7,041	0.3%	Defined
FRANKLIN ADVISERS INC	128,408	$2,036,550	99.7%	Defined

TWO SIGMA INVESTMENTS, LP

$1,954,158

0.34%

123,213

Scientech Research LLC

$1,783,790

0.31%

112,471

BANK OF AMERICA CORP /DE/

$1,625,808

0.28%

102,510

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	41,768	$662,440	40.7%	Defined
BOFA SECURITIES, INC.	60,742	$963,368	59.3%	Defined

Balyasny Asset Management L.P.

$1,489,523

0.26%

93,917

CITADEL ADVISORS LLC

$1,446,432

0.25%

91,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	91,200	$1,446,432	100.0%	Defined

Informed Momentum Co LLC

$1,419,422

0.24%

89,497

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,374,126

0.24%

86,641

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	86,641	$1,374,126	100.0%	Other

CastleKnight Management LP

$1,365,546

0.24%

86,100

XTX Topco Ltd

$1,273,256

0.22%

80,281

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	80,281	$1,273,256	100.0%	Defined

SEI INVESTMENTS CO

$1,207,691

0.21%

76,147

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SEI TRUST CO	76,147	$1,207,691	100.0%	Sole

SCALAR GAUGE MANAGEMENT, LLC

$1,189,500

0.21%

75,000

Mariner, LLC

$1,170,134

0.20%

73,779

RHUMBLINE ADVISERS

$1,137,066

0.20%

71,694

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$1,107,028

0.19%

69,800

SIMPLEX TRADING, LLC

$1,103,713

0.19%

69,591

LOS ANGELES CAPITAL MANAGEMENT LLC

$995,754

0.17%

62,784

Cambridge Investment Research Advisors, Inc.

$952,202

0.16%

60,038

DEUTSCHE BANK AG\

$924,732

0.16%

58,306

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS INVESTMENT MANAGEMENT AMERICAS, INC	1,086	$17,223	1.9%	Defined
DWS Investments UK Ltd	57,220	$907,509	98.1%	Defined

WELLS FARGO & COMPANY/MN

$915,105

0.16%

57,699

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	53,505	$848,589	92.7%	Defined
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	1,194	$18,936	2.1%	Defined
WELLS FARGO CLEARING SERVICES, LLC	3,000	$47,580	5.2%	Defined

Cetera Investment Advisers

$908,714

0.16%

57,296

ZACKS INVESTMENT MANAGEMENT

$894,313

0.15%

56,388

CITADEL ADVISORS LLC

$856,440

0.15%

54,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	54,000	$856,440	100.0%	Defined

ALLIANCEBERNSTEIN L.P.

$853,268

0.15%

53,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	53,800	$853,268	100.0%	Defined

Penbrook Management LLC

$851,682

0.15%

53,700

Brevan Howard Capital Management LP

$816,552

0.14%

51,485

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Brevan Howard US Investment Management, LP	51,485	$816,552	100.0%	Defined

D. E. Shaw & Co., Inc.

$795,379

0.14%

50,150

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	50,150	$795,379	100.0%	Defined

BARCLAYS PLC

$793,062

0.14%

50,004

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	46,965	$744,864	93.9%	Defined
BARCLAYS CAPITAL INC.	3,039	$48,198	6.1%	Defined

NANO CAP NEW MILLENNIUM GROWTH FUND L P

$793,000

0.14%

50,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AZG TANGIBLE ASSETS FUND LLC	50,000	$793,000	100.0%	Sole

BNP PARIBAS ARBITRAGE, SA

$792,095

0.14%

49,943

PRICE T ROWE ASSOCIATES INC /MD/

$774,031

0.13%

48,804

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	48,804	$774,031	100.0%	Defined

PDT Partners, LLC

$773,650

0.13%

48,780

Integrated Quantitative Investments LLC

$701,202

0.12%

44,212

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$699,426

0.12%

44,100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	44,100	$699,426	100.0%	Other

Quadrature Capital Ltd

$686,849

0.12%

43,307

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	43,307	$686,849	100.0%	Other

BAILARD, INC.

$672,464

0.12%

42,400

Walleye Trading LLC

$668,086

0.12%

42,124

JANE STREET GROUP, LLC

$623,298

0.11%

39,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	39,300	$623,298	100.0%	Defined

WEALTH ENHANCEMENT ADVISORY SERVICES, LLC

$582,347

0.10%

36,718

Quantbot Technologies LP

$577,811

0.10%

36,432

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	36,432	$577,811	100.0%	Sole

CANADA PENSION PLAN INVESTMENT BOARD

$574,132

0.10%

36,200

MetLife Investment Management, LLC

$539,890

0.09%

34,041

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	34,041	$539,890	100.0%	Defined

Cornerstone Investment Partners, LLC

$518,257

0.09%

32,677

FULLER & THALER ASSET MANAGEMENT, INC.

$505,410

0.09%

31,867

Invesco Ltd.

$504,013

0.09%

31,779

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	8,550	$135,602	26.9%	Defined
Invesco Trust Co joint	23,229	$368,411	73.1%	Defined

SLT Holdings LLC

$475,800

0.08%

30,000

Foundations Investment Advisors, LLC

$475,800

0.08%

30,000

AMERICAN CENTURY COMPANIES INC

$474,198

0.08%

29,899

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	29,899	$474,198	100.0%	Defined

MERCER GLOBAL ADVISORS INC /ADV

$446,728

0.08%

28,167

CITIGROUP INC

$442,208

0.08%

27,882

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	27,882	$442,208	100.0%	Defined

Creative Planning

$440,241

0.08%

27,758

Key facts CIK 1462056 CUSIP 05637B105 13F (30d) 144 filings 144 filers Visit website Investor relations