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BLZE in the 13F filings

Backblaze Inc · CUSIP 05637B105

Sector · Software and IT servicesTheme · Cloud and enterprise software· L3VLUP-definedTheme · Prepackaged software
Quarter
Q3 2026 · early filersQ2 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
30 Jun 2026
the date the book describes
Filed
2 Sep 2026
latest of these filings; the earliest 3 Aug 2026
Managers listing it
24
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 0 listed it in both
Shares listed
6,542,418
combined, among listed positions
Reported value
$103m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 19 buyers (opened or added shares) and 8 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +276,455.

Managers listing BLZE in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

24 of 24 holders

ActionFiling
Acadian Asset Management LLC1,786,402$28munder 0.1%Added+147,83413 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC1,051,847$17munder 0.1%Added+388,33614 Aug 2026 (the filing on sec.gov)
Renaissance Technologies LLC762,608$12munder 0.1%Trimmed-410,04913 Aug 2026 (the filing on sec.gov)
Arrowstreet Capital LP550,070$8.7munder 0.1%Added+249,56613 Aug 2026 (the filing on sec.gov)
Millennium Management LLC495,435$7.9munder 0.1%Added+372,08414 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)354,493$5.6munder 0.1%Added+307,35013 Aug 2026 (the filing on sec.gov)
Marshall Wace LLP316,341$5.0munder 0.1%Added+254,78613 Aug 2026 (the filing on sec.gov)
Tudor Investment Corp244,903$3.9munder 0.1%Added+23,52414 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC155,417$2.5munder 0.1%Added+123,38214 Aug 2026 (the filing on sec.gov)
Janus Henderson Group Ltd151,038$2.4munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP123,213$2.0munder 0.1%Added+107,91314 Aug 2026 (the filing on sec.gov)
Balyasny Asset Management LLC93,917$1.5munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP86,641$1.4munder 0.1%Trimmed-9,94414 Aug 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP51,485$817kunder 0.1%Added+37,10714 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.50,150$795kunder 0.1%Trimmed-688,88314 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc48,804$775kunder 0.1%Added+4,74514 Aug 2026 (the filing on sec.gov)
PDT Partners LLC48,780$774kunder 0.1%Held014 Aug 2026 (the filing on sec.gov)
Quantbot Technologies LP36,432$578kunder 0.1%Added+3,84112 Aug 2026 (the filing on sec.gov)
Invesco Ltd31,779$504kunder 0.1%Trimmed-13,69214 Aug 2026 (the filing on sec.gov)
Winton Group Ltd18,600$295kunder 0.1%Newnew7 Aug 2026 (the filing on sec.gov)
Polen Capital Management LLC13,268$210kunder 0.1%Newnew4 Aug 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC12,087$192kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP53,800$186kunder 0.1%Added+20,60014 Aug 2026 (the filing on sec.gov)
Walleye Capital LLC4,908$78kunder 0.1%Newnew3 Aug 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

There is no earlier quarter on file to compare with.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (6)

Exited (4)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
1 in Q2 2024 to 3 in Q2 2026

Tracked managers listing it, at least.

0123Q4 2021Q4 2023Q2 2024Q4 2024Q2 2025Q4 2025Q2 2026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
BLZE by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20211$3.4mn.a.n.a.
Q3 20231$2.5mn.a.n.a.
Q4 20231$5.0m10
Q1 20242$14m20
Q2 20241$6.7m10
Q3 20241$7.1m10
Q4 20241$7.0m10
Q1 20251$5.1m01
Q2 20252$7.1m20
Q3 20252$12m01
Q4 20251$485k1413
Q2 20263$29m198

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

BLZE and GOOGL →BLZE and AMZN →BLZE and MSFT →Choose a stock to compare with BLZE →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own BLZE, latest filings →Back to the 13F Explorer →