Backblaze BLZE Institutional Ownership

NASDAQ BLZE

$9.34 +0.17 (+1.85%)

At close: Oct 21, 2026 · 4:00 PM EDT

Institutions by Trading Activity

168 Institutions

Increased 124 73.8%

Unchanged 10 6.0%

Reduced 34 20.2%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

58.47%

▲+9.48 pp QoQ

Shares Held by Institutions

35.55Mn

of 60.79Mn outstanding

▲+22.37% QoQ

Shares Outstanding

60.79Mn

25.25Mn held outside 13F filers

Institutional Investors

168

filed 13F for Jun 2026

▲+31 vs prior quarter

Net Shares Added (QoQ)

+6.50Mn

accumulated since last quarter

Value of Holdings

$325.95Mn

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

Updated Oct 11, 2026

Backblaze, Inc. (NASDAQ:BLZE) counted 168 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

Together they owned 58.47% of the outstanding stock in Q2 2026, up from 48.99% a quarter earlier.
Total shares held in Backblaze rose 22.37% from Q1 2026, while the number of holders rose 33.33% from Q2 2025.
Of the 168 holders of BLZE in Q2 2026, 124 added to their positions, 34 reduced their stakes and 10 left their positions unchanged.
Institutional investors held 35.55Mn shares of Backblaze in total at the end of Q2 2026, up 6.5Mn from the prior quarter and up 9.47Mn from a year earlier.
BlackRock, Inc. held the largest position in BLZE at 4.72Mn shares as of June 30, 2026, or 7.77% of shares outstanding.
Among holders that already owned Backblaze, the biggest buyers in Q2 2026 were BlackRock, Inc. (+1.04Mn shares), Nuveen, LLC (+506.7K shares), Jump Financial, LLC (+410.51K shares), AQR Capital Management LLC (+388.34K shares) and Millennium Management LLC (+372.08K shares).
Among holders that kept a stake in Backblaze, the biggest sellers in Q2 2026 were D. E. Shaw & Co., Inc. (-688.88K shares), Pillsbury Lake Capital LLC (-621.45K shares), Renaissance Technologies LLC (-410.05K shares), Nano Cap New Millennium Growth Fund L.P. (-245K shares) and CastleKnight Management LP (-207.2K shares).
Per Business Quant, the top 10 investors in BLZE for the quarter ended June 30, 2026 were BlackRock, Inc. (4.72Mn shares), Driehaus Capital Management LLC (2.69Mn shares), Vanguard Capital Management LLC (2.51Mn shares), Acadian Asset Management LLC (1.79Mn shares), Geode Capital Management, LLC (1.53Mn shares), AWM Investment Company, Inc. (1.4Mn shares), Pillsbury Lake Capital LLC (1.34Mn shares), State Street Corp (1.22Mn shares), Connor, Clark & Lunn Investment Management Ltd. (1.16Mn shares) and AQR Capital Management LLC (1.05Mn shares).

Form 13F Holdings

168 Institutional Holders

Report period 30 Jun, 2026

Total shares held 35.55Mn

Of outstanding 58.47%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	4,722,483	7.77%	▲1,038,584	+28.19%	$74.90Mn
2	DRIEHAUS CAPITAL MANAGEMENT LLC	0000938206	2,688,044	4.42%	▲2,688,044	0.00%	$42.63Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,514,639	4.14%	▲170,192	+7.26%	$39.88Mn
4	ACADIAN ASSET MANAGEMENT LLC	0000916542	1,786,402	2.94%	▲147,834	+9.02%	$28.32K
5	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,525,097	2.51%	▲179,904	+13.37%	$24.19Mn
6	AWM Investment Company, Inc.	0001535264	1,400,166	2.30%	0	0.00%	$22.21Mn
7	Pillsbury Lake Capital LLC	0002111915	1,339,837	2.20%	▼621,446	-31.69%	$21.25Mn
8	State Street Corp	0000093751	1,216,998	2.00%	▲104,348	+9.38%	$19.30Mn
9	Connor, Clark & Lunn Investment Management Ltd.	0001596800	1,156,752	1.90%	▲323,480	+38.82%	$18.35Mn
10	AQR CAPITAL MANAGEMENT LLC	0001167557	1,051,847	1.73%	▲388,336	+58.53%	$16.68Mn
11	Qube Research & Technologies Ltd	0001729829	766,200	1.26%	▲333,849	+77.22%	$12.15Mn
12	RENAISSANCE TECHNOLOGIES LLC	0001037389	762,608	1.25%	▼410,049	-34.97%	$12.09Mn
13	NEXT CENTURY GROWTH INVESTORS LLC	0001134007	687,498	1.13%	▲687,498	0.00%	$10.90Mn
14	DIMENSIONAL FUND ADVISORS LP	0000354204	628,636	1.03%	▲111,050	+21.46%	$9.97Mn
15	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	613,784	1.01%	▼94,103	-13.29%	$9.73Mn
16	Nuveen, LLC	0001871926	577,841	0.95%	▲506,698	+712.22%	$9.16Mn
17	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0001164508	550,070	0.90%	▲249,566	+83.05%	$8.72Mn
18	MILLENNIUM MANAGEMENT LLC	0001273087	495,435	0.81%	▲372,084	+301.65%	$7.86Mn
19	Northern Trust Corp	0000073124	483,598	0.80%	▲50,190	+11.58%	$7.67Mn
20	Jump Financial, LLC	0001831577	469,100	0.77%	▲410,514	+700.70%	$7.44Mn

Showing 1 to 20 of 168 holders