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BOX in the 13F filings

Box Inc · CUSIP 10316T104

Sector · Software and IT servicesTheme · Cloud and enterprise software· L3VLUP-definedTheme · Prepackaged software
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
29
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 5 listed it in both
Shares listed
27,661,760
combined, among listed positions
Reported value
$657m
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: 24 buyers (opened or added shares) and 9 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +6,488,739.

Managers listing BOX in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

29 of 29 holders

ActionFiling
Arrowstreet Capital LP4,918,991$116m0.06%Added+407,73314 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC4,725,486$112m0.16%Added+230,68413 May 2026 (the filing on sec.gov)
Marshall Wace LLP2,630,154$62m0.06%Added+883,12715 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC2,612,674$62m0.07%Added+2,019,33915 May 2026 (the filing on sec.gov)
Citadel Advisors LLC2,337,851$55munder 0.1%Added+2,078,16515 May 2026 (the filing on sec.gov)
MFS Investment Management1,294,539$31munder 0.1%Added+489,09214 May 2026 (the filing on sec.gov)
Two Sigma Investments LP1,260,729$30munder 0.1%Added+315,88615 May 2026 (the filing on sec.gov)
Man Group PLC1,186,356$28m0.05%Added+332,78015 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd1,147,381$27munder 0.1%Added+491,50518 May 2026 (the filing on sec.gov)
Jane Street Group LLC1,094,143$26munder 0.1%Added+71,77512 May 2026 (the filing on sec.gov)
Millennium Management LLC778,822$18munder 0.1%Added+159,98615 May 2026 (the filing on sec.gov)
Invesco Ltd664,410$16munder 0.1%Added+79,83812 May 2026 (the filing on sec.gov)
AllianceBernstein LP475,168$14munder 0.1%Added+158,73415 May 2026 (the filing on sec.gov)
Point72 Asset Management LP600,576$14munder 0.1%Trimmed-529,67115 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.492,320$12munder 0.1%Added+186,54315 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)276,798$6.5munder 0.1%Added+255,32515 May 2026 (the filing on sec.gov)
Winton Group Ltd241,407$5.7m0.20%Newnew12 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc161,258$3.8munder 0.1%Added+23,37115 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP146,376$3.5munder 0.1%Added+85,58915 May 2026 (the filing on sec.gov)
Tudor Investment Corp129,025$3.0munder 0.1%Trimmed-320,94815 May 2026 (the filing on sec.gov)
AQR Capital Management LLC110,047$2.6munder 0.1%Added+73,71015 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP92,982$2.2munder 0.1%Added+52,98915 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC71,541$1.7munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Quantbot Technologies LP65,637$1.6m0.06%Newnew13 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC61,308$1.4munder 0.1%Trimmed-330,00514 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, 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 (4)

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.
7 in Q3 2024 to 8 in Q2 2026

Tracked managers listing it, at least.

051015201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
BOX by quarter
QuarterHoldersReported valueBuyersSellers
Q1 20152$34mn.a.n.a.
Q2 20153$34mn.a.n.a.
Q3 20154$50mn.a.n.a.
Q4 20152$50mn.a.n.a.
Q1 20162$59mn.a.n.a.
Q2 20161$42mn.a.n.a.
Q3 20163$47mn.a.n.a.
Q4 20165$33mn.a.n.a.
Q1 20173$22mn.a.n.a.
Q2 20179$199mn.a.n.a.
Q3 20178$161mn.a.n.a.
Q4 20179$358mn.a.n.a.
Q1 201811$328mn.a.n.a.
Q2 20185$263mn.a.n.a.
Q3 20188$310mn.a.n.a.
Q4 20185$104mn.a.n.a.
Q1 20196$38mn.a.n.a.
Q2 20194$71mn.a.n.a.
Q3 20197$213mn.a.n.a.
Q4 20198$221mn.a.n.a.
Q1 20209$240mn.a.n.a.
Q2 202013$496mn.a.n.a.
Q3 202013$456mn.a.n.a.
Q4 202011$426mn.a.n.a.
Q1 202111$444mn.a.n.a.
Q2 20218$457mn.a.n.a.
Q3 20218$351mn.a.n.a.
Q4 20217$159mn.a.n.a.
Q1 20228$165mn.a.n.a.
Q2 20226$135mn.a.n.a.
Q3 20227$106mn.a.n.a.
Q4 20226$152mn.a.n.a.
Q1 20237$188mn.a.n.a.
Q2 20235$192mn.a.n.a.
Q3 20236$148mn.a.n.a.
Q4 20237$156m34
Q1 20245$135m23
Q2 20244$106m22
Q3 20247$225m70
Q4 20247$311m60
Q1 20258$359m53
Q2 20259$556m90
Q3 202510$484m46
Q4 20258$401m1715
Q1 20268$391m249
Q2 20268$385m1419

Compare with…

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

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

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 BOX, latest filings →Back to the 13F Explorer →