Box, Inc.
US ˙ NYSE ˙ US10316T1043

SecurityBOX / Box, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership3,331,925 shares
Latest Disclosed Value $ 99,658,205
Sei Investments Co reports 0.46% increase in ownership of BOX / Box, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 3,331,925 shares of Box, Inc. (US:BOX) valued at $99,657,877 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 3,316,783 shares of Box, Inc.. This represents a change in shares of 0.46% during the quarter. The current value of the position is $88,929,078 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F BOX CL A 10316T104 3,331,925 15,142 0.46 99,658 -6.89 0.0984
2025-11-13 2025-09-30 13F BOX CL A 10316T104 3,316,783 94,289 2.93 107,033 -2.80 0.1151
2025-08-14 2025-06-30 13F BOX CL A 10316T104 3,222,494 73,738 2.34 110,113 13.32 0.1276
2025-05-14 2025-03-31 13F/A-1 BOX CL A 10316T104 3,148,756 -137,863 -4.19 97,170 -6.44 0.1251
2025-05-13 2025-03-31 13F BOX CL A 10316T104 3,289,438 2,819 103,935 0.1130
2025-02-11 2024-12-31 13F BOX CL A 10316T104 3,286,619 255,623 8.43 103,857 4.69 0.1334
2024-11-12 2024-09-30 13F BOX CL A 10316T104 3,030,996 -47,861 -1.55 99,204 21.87 0.1288
2024-08-13 2024-06-30 13F BOX CL A 10316T104 3,078,857 125,435 4.25 81,405 -2.67 0.1153
2024-05-07 2024-03-31 13F BOX CL A 10316T104 2,953,422 421,289 16.64 83,641 28.98 0.1226
2024-02-14 2023-12-31 13F BOX CL A 10316T104 2,532,133 523,872 26.09 64,848 33.38 0.1041
2023-11-14 2023-09-30 13F BOX CL A 10316T104 2,008,261 28,629 1.45 48,620 -16.41 0.0874
2023-08-11 2023-06-30 13F BOX CL A 10316T104 1,979,632 4,470 0.23 58,162 9.92 0.1014
2023-05-12 2023-03-31 13F BOX CL A 10316T104 1,975,162 -11,602 -0.58 52,915 -14.44 0.0983
2023-02-10 2022-12-31 13F BOX CL A 10316T104 1,986,764 146,453 7.96 61,848 37.79 0.1374
2022-11-14 2022-09-30 13F BOX CL A 10316T104 1,840,311 56,493 3.17 44,885 0.10 0.1001
2022-08-15 2022-06-30 13F BOX CL A 10316T104 1,783,818 233,605 15.07 44,839 -0.47 0.0968
2022-05-13 2022-03-31 13F BOX CL A 10316T104 1,550,213 138,678 9.82 45,052 21.79 0.0906
2022-02-14 2021-12-31 13F BOX CL A 10316T104 1,411,535 575,853 68.91 36,991 86.79 0.0694
2021-11-12 2021-09-30 13F BOX CL A 10316T104 835,682 224,726 36.78 19,804 26.92 0.0415
2021-08-06 2021-06-30 13F BOX CL A 10316T104 610,956 9,610 1.60 15,603 14.55 0.0346
2021-05-12 2021-03-31 13F BOX CL A 10316T104 601,346 -4,549 -0.75 13,621 24.87 0.0343
2021-02-08 2020-12-31 13F BOX CL A 10316T104 605,895 -74,000 -10.88 10,908 -7.59 0.0282
2020-12-04 2020-09-30 13F/A-1 BOX CL A 10316T104 679,895 123,330 22.16 11,804 2.13 0.0342
2020-11-06 2020-09-30 13F BOX CL A 10316T104 680,583 124,018 11,816 28,450.3008
2020-08-17 2020-06-30 13F/A-1 BOX CL A 10316T104 556,565 225,284 68.00 11,558 148.61 0.0359
2020-08-11 2020-06-30 13F BOX CL A 10316T104 93,410 -237,871 1,685 4,570.6522
2020-05-14 2020-03-31 13F BOX CL A 10316T104 331,281 178,177 116.38 4,649 81.74 0.0171
2020-02-06 2019-12-31 13F BOX CL A 10316T104 153,104 85,297 125.79 2,558 129.62 0.0076
2019-11-12 2019-09-30 13F BOX CL A 10316T104 67,807 2,382 3.64 1,114 -3.30 0.0028
2019-08-14 2019-06-30 13F BOX CL A 10316T104 65,425 20,035 44.14 1,152 31.66 0.0038
2019-05-15 2019-03-31 13F BOX CL A 10316T104 45,390 -108,060 -70.42 875 -76.09 0.0029
2019-02-13 2018-12-31 13F BOX CL A 10316T104 153,450 260 0.17 3,659 -0.08 0.0130
2018-11-08 2018-09-30 13F BOX CL A 10316T104 153,190 15,203 11.02 3,662 6.21 0.0133
2018-08-03 2018-06-30 13F BOX CL A 10316T104 137,987 -12,254 -8.16 3,448 11.66 0.0117
2018-05-11 2018-03-31 13F BOX CL A 10316T104 150,241 14,127 10.38 3,088 7.41 0.0118
2018-02-08 2017-12-31 13F BOX CL A 10316T104 136,114 136,114 2,875 0.0100
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.