Backblaze BLZE Institutional Ownership

NASDAQ BLZE

$13.99 +0.61 (+4.56%)

At close: Sep 30, 2026 · 4:00 PM EDT

Institutions by Trading Activity

169 Institutions

Increased 125 74.0%

Unchanged 10 5.9%

Reduced 34 20.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

62.68%

▲+11.70 pp QoQ

Shares Held by Institutions

35.72Mn

of 56.98Mn outstanding

▲+38.76% QoQ

Shares Outstanding

56.98Mn

21.26Mn held outside 13F filers

Institutional Investors

169

filed 13F for Jun 2026

▲+32 vs prior quarter

Net Shares Added (QoQ)

+9.98Mn

accumulated since last quarter

Value of Holdings

$499.66Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Backblaze, Inc. (NASDAQ:BLZE) has 169 institutional investors that have filed 13F reports for the period ending June 2026.

They owned 62.7% of outstanding stock in June 2026, up from 51.0% the prior quarter.
They increased total shares held in Backblaze by 38.76% from last quarter, and the number of investors in BLZE increased 33.07% annually.
Among the 169 funds, 125 bought more Backblaze shares, 34 sold down, and 10 held their ground.
Altogether, these fund groups held 35.72Mn shares in BLZE by June 2026, up by 9.98Mn shares quarter on quarter, and up 9.64Mn shares year over year.
BlackRock, Inc. leads ownership in BLZE with 4.72Mn shares as of June 30, 2026, equal to 8.29% of outstanding shares.
The largest buyers of Backblaze for the quarter ending June 2026 were DRIEHAUS CAPITAL MANAGEMENT LLC (2.69Mn), BlackRock, Inc. (1.04Mn), NEXT CENTURY GROWTH INVESTORS LLC (687.5K), Nuveen, LLC (506.7K), Halter Ferguson Financial Inc. (457.75K).
Top sellers of BLZE stock for the quarter ending June 2026 included D. E. Shaw & Co., Inc. (688.88K), Pillsbury Lake Capital LLC (621.45K), RENAISSANCE TECHNOLOGIES LLC (410.05K), NANO CAP NEW MILLENNIUM GROWTH FUND L P (245.0K), CastleKnight Management LP (207.2K).
Per Business Quant, the top 10 investors in BLZE for the quarter ending June 2026 include BlackRock, Inc. (4.72Mn), DRIEHAUS CAPITAL MANAGEMENT LLC (2.69Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.51Mn), ACADIAN ASSET MANAGEMENT LLC (1.79Mn), GEODE CAPITAL MANAGEMENT, LLC (1.53Mn), AWM Investment Company, Inc. (1.4Mn), Pillsbury Lake Capital LLC (1.34Mn), State Street Corp (1.22Mn), Connor, Clark & Lunn Investment Management Ltd. (1.16Mn), AQR CAPITAL MANAGEMENT LLC (1.05Mn).

Form 13F Holdings

169 Institutional Holders

Report period 30 Jun, 2026

Total shares held 35.72Mn

Of outstanding 62.68%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	4,722,483	8.29%	▲1,038,584	+28.19%	$74.90Mn
2	DRIEHAUS CAPITAL MANAGEMENT LLC	0000938206	2,688,044	4.72%	▲2,688,044	0.00%	$42.63Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,514,639	4.41%	▲170,192	+7.26%	$39.88Mn
4	ACADIAN ASSET MANAGEMENT LLC	0000916542	1,786,402	3.14%	▲147,834	+9.02%	$28.32K
5	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,525,097	2.68%	▲179,904	+13.37%	$24.19Mn
6	AWM Investment Company, Inc.	0001535264	1,400,166	2.46%	0	0.00%	$22.21Mn
7	Pillsbury Lake Capital LLC	0002111915	1,339,837	2.35%	▼621,446	-31.69%	$21.25Mn
8	State Street Corp	0000093751	1,216,998	2.14%	▲104,348	+9.38%	$19.30Mn
9	Connor, Clark & Lunn Investment Management Ltd.	0001596800	1,156,752	2.03%	▲323,480	+38.82%	$18.35Mn
10	AQR CAPITAL MANAGEMENT LLC	0001167557	1,051,847	1.85%	▲388,336	+58.53%	$16.68Mn
11	Qube Research & Technologies Ltd	0001729829	766,200	1.34%	▲333,849	+77.22%	$12.15Mn
12	RENAISSANCE TECHNOLOGIES LLC	0001037389	762,608	1.34%	▼410,049	-34.97%	$12.09Mn
13	NEXT CENTURY GROWTH INVESTORS LLC	0001134007	687,498	1.21%	▲687,498	0.00%	$10.90Mn
14	DIMENSIONAL FUND ADVISORS LP	0000354204	628,636	1.10%	▲111,050	+21.46%	$9.97Mn
15	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	613,784	1.08%	▼94,103	-13.29%	$9.73Mn
16	Nuveen, LLC	0001871926	577,841	1.01%	▲506,698	+712.22%	$9.16Mn
17	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0001164508	550,070	0.97%	▲249,566	+83.05%	$8.72Mn
18	MILLENNIUM MANAGEMENT LLC	0001273087	495,435	0.87%	▲372,084	+301.65%	$7.86Mn
19	Northern Trust Corp	0000073124	483,598	0.85%	▲50,190	+11.58%	$7.67Mn
20	Jump Financial, LLC	0001831577	469,100	0.82%	▲410,514	+700.70%	$7.44Mn

Showing 1 to 20 of 169 holders