Backblaze, Inc. (BLZE) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

56,977,764Shares Outstanding

32,562,417Shares held by institutions

$118,527,198Value of institutional holdings

57.15%Institutional ownership %

24.22%Shares Changed QoQ

142No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Backblaze, Inc. (NASDAQ:BLZE) has 142 institutional investors with active 13F positions as of December 2025.

These investors held 56.4% of outstanding shares in December 2025, up from 53.3% in September 2025.
Their total shares held in BLZE increased 23.83% from the prior quarter, while the number of investors in Backblaze increased 17.36% year over year.
Of these 142 funds, 86 grew their exposure to Backblaze, 41 cut back, and 15 maintained positions.
Altogether, these fund groups held 32.16Mn shares in BLZE by December 2025, up by 6.19Mn shares quarter on quarter, and up 8.08Mn shares year over year.
As of December 31, 2025, BlackRock, Inc. held the largest stake in Backblaze with 3.74Mn shares, accounting for 6.56% of total shares outstanding.
Top purchasers of BLZE stock for the quarter ending December 2025 included Pillsbury Lake Capital LLC (1.73Mn), ACADIAN ASSET MANAGEMENT LLC (835.01K), Point72 Asset Management, L.P. (567.8K), PRELUDE CAPITAL MANAGEMENT, LLC (516.31K), VANGUARD GROUP INC (403.21K).
Leading sellers of Backblaze shares for the quarter ending December 2025 were CITADEL ADVISORS LLC (320.14K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (287.65K), Jump Financial, LLC (231.42K), MARSHALL WACE, LLP (222.55K), MILLENNIUM MANAGEMENT LLC (217.58K).
Business Quant data shows the 10 biggest positions in Backblaze as of December 2025 are held by BlackRock, Inc. (3.74Mn), VANGUARD GROUP INC (3.1Mn), AWM Investment Company, Inc. (3.07Mn), Pillsbury Lake Capital LLC (1.73Mn), 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).

142 Institutional Holders

32,562,417 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
Pillsbury Lake Capital LLC	31 Dec, 2025	1,729,132	1,729,132	0.00%	$8,057,755.00
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
Goldman Sachs Group Inc	31 Dec, 2025	755,344	590,230	357.47%	$3,519,904.00
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	-97,389	-13.85%	$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

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