Backblaze, Inc. (BLZE) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

53,971,429Shares Outstanding

199,758Shares held by institutions

$805,025Value of institutional holdings

55.97%Institutional ownership %

19.74%Shares Changed QoQ

136No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Backblaze, Inc. (NASDAQ:BLZE) currently has 136 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

These investors collectively held 56.0% of the company's total shares outstanding in December 2025, up from 55.5% in September 2025.
The company experienced a 19.74% quarterly change in institutional shares held, alongside an increase of 12.40% in total owners annually.
During the quarter, 87 institutions bought more Backblaze shares, 34 sold shares, and 15 of the 136 total investors held their position steady.
The aggregate institutional position in Backblaze now stands at 30.21Mn shares as of December 2025, after investors increased their holdings (up by 4.98Mn shares quarter on quarter which is up 6.99Mn shares year over year).
BlackRock, Inc.'s holding of 3.74Mn shares as of December 31, 2025 makes it the primary institutional investor in Backblaze, owning 6.93% of the stock.
Among the most significant buyers of Backblaze during December 2025 were ACADIAN ASSET MANAGEMENT LLC (835.01K), Point72 Asset Management, L.P. (567.80K), PRELUDE CAPITAL MANAGEMENT, LLC (516.31K), VANGUARD GROUP INC (403.21K), RENAISSANCE TECHNOLOGIES LLC (393.94K).
Leading sellers of Backblaze stock in December 2025 included CITADEL ADVISORS LLC (320.14K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (287.65K), Jump Financial, LLC (231.42K), MARSHALL WACE, LLP (222.55K), MILLENNIUM MANAGEMENT LLC (217.57K).
The top 10 institutional holders of Backblaze for the quarter ending December 2025 included BlackRock, Inc. (3.74Mn), VANGUARD GROUP INC (3.10Mn), AWM Investment Company, Inc. (3.07Mn), Whetstone Capital Advisors, LLC (1.52Mn), GEODE CAPITAL MANAGEMENT, LLC (1.34Mn), ACADIAN ASSET MANAGEMENT LLC (1.17Mn), STATE STREET CORP (1.06Mn), Connor, Clark & Lunn Investment Management Ltd. (955.64K), RENAISSANCE TECHNOLOGIES LLC (810.75K), MILLENNIUM MANAGEMENT LLC (652.67K).

136 Institutional Holders

199,758 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	3,740,041	15,822	0.42%	$17,428,591.00
VANGUARD GROUP INC	31 Dec, 2025	3,096,719	403,211	14.97%	$14,430,710.00
AWM Investment Company, Inc.	31 Dec, 2025	3,067,569	3,043	0.10%	$14,294,872.00
Whetstone Capital Advisors, LLC	31 Dec, 2025	1,520,055	59,263	4.06%	$7,083,456.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,341,863	53,583	4.16%	$6,254,796.00
ACADIAN ASSET MANAGEMENT LLC	31 Dec, 2025	1,169,765	835,007	249.44%	$5,444.00
STATE STREET CORP	31 Dec, 2025	1,059,890	2,196	0.21%	$4,939,087.00
Connor, Clark & Lunn Investment Management Ltd.	31 Dec, 2025	955,643	1,729	0.18%	$4,453,296.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	810,752	393,936	94.51%	$3,778,104.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	652,675	-217,575	-25.00%	$3,041,466.00
Qube Research & Technologies Ltd	31 Dec, 2025	614,715	327,057	113.70%	$2,864,572.00
JPMORGAN CHASE & CO	31 Dec, 2025	605,925	254,268	72.31%	$2,823,610.00
Point72 Asset Management, L.P.	31 Dec, 2025	567,803	567,803	0.00%	$2,645,962.00
OBERWEIS ASSET MANAGEMENT INC/	31 Dec, 2025	552,023	13,323	2.47%	$2,572,427.00
PRELUDE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	516,311	516,311	0.00%	$2,406,009.00
D. E. Shaw & Co., Inc.	31 Dec, 2025	469,066	105,115	28.88%	$2,185,847.00
MORGAN STANLEY	31 Dec, 2025	440,647	-73,083	-14.23%	$2,053,415.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	431,173	88,850	25.96%	$2,009,266.00
NORTHERN TRUST CORP	31 Dec, 2025	418,270	-14,963	-3.45%	$1,949,138.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	377,672	212,558	128.73%	$1,759,952.00

1 - 20 of 136

Research Tools