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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
31 Dec 2025
the date the book describes
Filed
19 Feb 2026
latest of these filings; the earliest 4 Feb 2026
Managers listing it
23
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 1 listed it in both
Shares listed
6,081,248
combined, among listed positions
Reported value
$28m
combined, at the quarter end

Among the 92 comparable managers: 14 buyers (opened or added shares) and 13 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +44,193.

Managers listing BLZE in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

23 of 23 holders

ActionFiling
Acadian Asset Management LLC1,169,765$5.4munder 0.1%Added+835,00710 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC810,752$3.8munder 0.1%Added+393,93612 Feb 2026 (the filing on sec.gov)
Millennium Management LLC652,675$3.0munder 0.1%Trimmed-217,57517 Feb 2026 (the filing on sec.gov)
Point72 Asset Management LP567,803$2.6munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.469,066$2.2munder 0.1%Added+105,11517 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP431,173$2.0munder 0.1%Added+88,85017 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC299,847$1.4munder 0.1%Added+74,92812 Feb 2026 (the filing on sec.gov)
Tudor Investment Corp269,615$1.3munder 0.1%Added+218,35817 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP225,111$1.0munder 0.1%Trimmed-222,55013 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP196,800$917kunder 0.1%Added+42,80017 Feb 2026 (the filing on sec.gov)
Arrowstreet Capital LP192,628$898kunder 0.1%Trimmed-287,65313 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC140,062$653kunder 0.1%Trimmed-320,14217 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC122,900$573kunder 0.1%Trimmed-47,01217 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP105,185$490kunder 0.1%Added+80,66817 Feb 2026 (the filing on sec.gov)
PDT Partners LLC103,976$485kunder 0.1%Trimmed-27,19017 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC85,480$398kunder 0.1%Added+22,17413 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)48,573$226kunder 0.1%Added+18117 Feb 2026 (the filing on sec.gov)
Invesco Ltd44,103$206kunder 0.1%Added+3,36319 Feb 2026 (the filing on sec.gov)
Verition Fund Management LLC42,129$196kunder 0.1%Trimmed-31,49013 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP33,200$155kunder 0.1%Added+8,70017 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc32,219$151kunder 0.1%Added+3,52317 Feb 2026 (the filing on sec.gov)
Quantbot Technologies LP23,786$111kunder 0.1%Trimmed-21,33310 Feb 2026 (the filing on sec.gov)
GAMCO Investors Inc14,400$67kunder 0.1%Held05 Feb 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

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 (1)

Exited (5)

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 →