Box, Inc.
US ˙ NYSE ˙ US10316T1043

SecurityBOX / Box, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership244,405 shares
Latest Disclosed Value $ 5,777,734
Citigroup Inc ownership in BOX / Box, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 244,405 shares of Box, Inc. (US:BOX) valued at $5,777,734 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 149,717 shares of Box, Inc.. This represents a change in shares of 63.24% during the quarter. The current value of the position is $6,542,722 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (BOX) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

BOX / Box, Inc. Historical Put/Call Ratio
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)
2026-05-11 2026-03-31 13F BOX CL A 10316T104 244,405 94,688 63.24 5,778 29.01 0.0025
2026-02-13 2025-12-31 13F BOX CL A 10316T104 149,717 -47,991 -24.27 4,478 -29.81 0.0020
2025-11-10 2025-09-30 13F BOX CL A 10316T104 197,708 -25,749 -11.52 6,380 -16.44 0.0028
2025-08-11 2025-06-30 13F BOX CL A 10316T104 223,457 -191,707 -46.18 7,636 -40.40 0.0038
2025-05-12 2025-03-31 13F BOX CL A 10316T104 415,164 -2,765 -0.66 12,812 -2.99 0.0065
2025-02-12 2024-12-31 13F BOX CL A 10316T104 417,929 26,495 6.77 13,207 3.08 0.0078
2024-11-12 2024-09-30 13F BOX CL A 10316T104 391,434 72,036 22.55 12,812 51.72 0.0074
2024-08-12 2024-06-30 13F BOX CL A 10316T104 319,398 173,991 119.66 8,445 105.10 0.0054
2024-05-10 2024-03-31 13F BOX CL A 10316T104 145,407 24,267 20.03 4,118 32.72 0.0027
2024-02-09 2023-12-31 13F BOX CL A 10316T104 121,140 -13,016 -9.70 3,102 -4.47 0.0022
2023-12-06 2023-09-30 13F/A-1 BOX CL A 10316T104 134,156 -79,774 -37.29 3,248 -48.34 0.0024
2023-11-09 2023-09-30 13F BOX CL A 10316T104 134,156 -79,774 3,248 0.0010
2023-08-10 2023-06-30 13F BOX CL A 10316T104 213,930 55,728 35.23 6,285 48.30 0.0041
2023-05-11 2023-03-31 13F BOX CL A 10316T104 158,202 42,414 36.63 4,238 17.59 0.0030
2023-02-09 2022-12-31 13F BOX CL A 10316T104 115,788 -23,117 -16.64 3,604 6.38 0.0029
2022-11-10 2022-09-30 13F BOX CL A 10316T104 138,905 -2,253 -1.60 3,388 -4.54 0.0024
2022-08-10 2022-06-30 13F BOX CL A 10316T104 141,158 -79,503 -36.03 3,549 -44.65 0.0026
2022-05-12 2022-03-31 13F BOX CL A 10316T104 220,661 -6,355 -2.80 6,412 7.84 0.0039
2022-02-10 2021-12-31 13F BOX CL A 10316T104 227,016 -753,010 -76.84 5,946 -74.37 0.0032
2021-11-10 2021-09-30 13F BOX CL A 10316T104 980,026 540,914 123.18 23,197 106.75 0.0137
2021-08-10 2021-06-30 13F BOX CL A 10316T104 439,112 305,873 229.57 11,220 266.79 0.0068
2021-05-13 2021-03-31 13F BOX CL A 10316T104 133,239 -115,171 -46.36 3,059 -31.78 0.0020
2021-02-11 2020-12-31 13F BOX CL A 10316T104 248,410 135,549 120.10 4,484 128.78 0.0026
2020-11-12 2020-09-30 13F BOX CL A 10316T104 112,861 -29,329 -20.63 1,960 -33.60 0.0013
2020-08-12 2020-06-30 13F BOX CL A 10316T104 142,190 -192,125 -57.47 2,952 -37.10 0.0023
2020-05-12 2020-03-31 13F BOX CL A 10316T104 334,315 114,005 51.75 4,693 26.98 0.0042
2020-02-12 2019-12-31 13F BOX CL A 10316T104 220,310 171,186 348.48 3,696 354.05 0.0027
2019-11-08 2019-09-30 13F BOX CL A 10316T104 49,124 -18,353 -27.20 814 -31.48 0.0006
2019-08-12 2019-06-30 13F BOX CL A 10316T104 67,477 -72,220 -51.70 1,188 -55.95 0.0010
2019-05-13 2019-03-31 13F BOX CL A 10316T104 139,697 43,497 45.22 2,697 66.07 0.0026
2019-02-12 2018-12-31 13F BOX CL A 10316T104 96,200 -19,595 -16.92 1,624 -41.37 0.0016
2018-11-13 2018-09-30 13F BOX CL A 10316T104 115,795 -4,891 -4.05 2,770 -8.16 0.0025
2018-08-10 2018-06-30 13F BOX CL A 10316T104 120,686 81,660 209.25 3,016 276.06 0.0028
2018-05-11 2018-03-31 13F BOX CL A 10316T104 39,026 -44,788 -53.44 802 -54.66 0.0007
2018-02-12 2017-12-31 13F BOX CL A 10316T104 83,814 44,503 113.21 1,769 132.76 0.0014
2017-11-13 2017-09-30 13F BOX CL A 10316T104 39,311 1,650 4.38 760 10.47 0.0006
2017-08-11 2017-06-30 13F BOX CL A 10316T104 37,661 35,873 2,006.32 688 2,272.41 0.0006
2017-05-12 2017-03-31 13F BOX CL A 10316T104 1,788 -36,481 -95.33 29 -94.53 0.0000
2017-02-10 2016-12-31 13F BOX CL A 10316T104 38,269 9,935 35.06 530 18.83 0.0005
2016-11-10 2016-09-30 13F BOX CL A 10316T104 28,334 13,726 93.96 446 195.36 0.0004
2016-08-12 2016-06-30 13F BOX CL A 10316T104 14,608 5,000 52.04 151 27.97 0.0002
2016-05-13 2016-03-31 13F BOX CL A 10316T104 9,608 3,510 57.56 118 38.82 0.0001
2016-02-12 2015-12-31 13F BOX CL A 10316T104 6,098 2,396 64.72 85 80.85 0.0001
2015-11-13 2015-09-30 13F BOX CL A 10316T104 3,702 2,634 246.63 47 135.00 0.0000
2015-08-13 2015-06-30 13F BOX CL A 10316T104 1,068 -1,068 -50.00 20 -52.38 0.0000
2015-05-14 2015-03-31 13F BOX CL A 10316T104 2,136 2,136 42 0.0000
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2023-08-10 2023-06-30 13F BOX CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-11 2023-03-31 13F BOX CL A Call 100,000 2,679 n/a n/a n/a
2021-05-13 2021-03-31 13F BOX CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F BOX CL A Call 26,000 132.14 469 141.75 n/a n/a n/a
2020-11-12 2020-09-30 13F BOX CL A Call 11,200 -73.21 194 -77.65 n/a n/a n/a
2020-08-12 2020-06-30 13F BOX CL A Call 41,800 20.46 868 78.23 n/a n/a n/a
2020-05-12 2020-03-31 13F BOX CL A Call 34,700 -35.50 487 -46.07 n/a n/a n/a
2020-02-12 2019-12-31 13F BOX CL A Call 53,800 -40.02 903 -39.19 n/a n/a n/a
2019-11-08 2019-09-30 13F BOX CL A Call 89,700 2.99 1,485 -3.19 n/a n/a n/a
2019-08-12 2019-06-30 13F BOX CL A Call 87,100 -7.64 1,534 -15.76 n/a n/a n/a
2019-05-13 2019-03-31 13F BOX CL A Call 94,300 2.50 1,821 17.26 n/a n/a n/a
2019-02-12 2018-12-31 13F BOX CL A Call 92,000 -19.58 1,553 -43.22 n/a n/a n/a
2018-11-13 2018-09-30 13F BOX CL A Call 114,400 -27.46 2,735 -30.60 n/a n/a n/a
2018-08-10 2018-06-30 13F BOX CL A Call 157,700 338.06 3,941 432.57 n/a n/a n/a
2018-05-11 2018-03-31 13F BOX CL A Call 36,000 28.57 740 25.21 n/a n/a n/a
2018-02-12 2017-12-31 13F BOX CL A Call 28,000 129.51 591 150.42 n/a n/a n/a
2017-11-13 2017-09-30 13F BOX CL A Call 12,200 -8.96 236 -3.28 n/a n/a n/a
2017-08-11 2017-06-30 13F BOX CL A Call 13,400 1,016.67 244 1,120.00 n/a n/a n/a
2017-05-12 2017-03-31 13F BOX CL A Call 1,200 -70.73 20 -64.91 n/a n/a n/a
2017-02-10 2016-12-31 13F BOX CL A Call 4,100 -4.65 57 -16.18 n/a n/a n/a
2016-11-10 2016-09-30 13F BOX CL A Call 4,300 230.77 68 423.08 n/a n/a n/a
2016-08-12 2016-06-30 13F BOX CL A Call 1,300 0.00 13 -18.75 n/a n/a n/a
2016-05-13 2016-03-31 13F BOX CL A Call 1,300 550.00 16 433.33 n/a n/a n/a
2016-02-12 2015-12-31 13F BOX CL A Call 200 0.00 3 0.00 n/a n/a n/a
2015-11-13 2015-09-30 13F BOX CL A Call 200 3 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2021-05-13 2021-03-31 13F BOX CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F BOX CL A Put 106,000 17.78 1,913 22.47 n/a n/a n/a
2020-11-12 2020-09-30 13F BOX CL A Put 90,000 -9.37 1,562 -24.21 n/a n/a n/a
2020-08-12 2020-06-30 13F BOX CL A Put 99,300 4.09 2,061 53.92 n/a n/a n/a
2020-05-12 2020-03-31 13F BOX CL A Put 95,400 23.26 1,339 3.08 n/a n/a n/a
2020-02-12 2019-12-31 13F BOX CL A Put 77,400 0.52 1,299 1.88 n/a n/a n/a
2019-11-08 2019-09-30 13F BOX CL A Put 77,000 -0.65 1,275 -6.59 n/a n/a n/a
2019-08-12 2019-06-30 13F BOX CL A Put 77,500 -22.03 1,365 -28.87 n/a n/a n/a
2019-05-13 2019-03-31 13F BOX CL A Put 99,400 -6.75 1,919 6.67 n/a n/a n/a
2019-02-12 2018-12-31 13F BOX CL A Put 106,600 -38.42 1,799 -56.54 n/a n/a n/a
2018-11-13 2018-09-30 13F BOX CL A Put 173,100 33.67 4,139 27.90 n/a n/a n/a
2018-08-10 2018-06-30 13F BOX CL A Put 129,500 290.06 3,236 374.49 n/a n/a n/a
2018-05-11 2018-03-31 13F BOX CL A Put 33,200 24.81 682 21.35 n/a n/a n/a
2018-02-12 2017-12-31 13F BOX CL A Put 26,600 216.67 562 246.91 n/a n/a n/a
2017-11-13 2017-09-30 13F BOX CL A Put 8,400 -12.50 162 -7.43 n/a n/a n/a
2017-08-11 2017-06-30 13F BOX CL A Put 9,600 1,100.00 175 1,246.15 n/a n/a n/a
2017-05-12 2017-03-31 13F BOX CL A Put 800 14.29 13 30.00 n/a n/a n/a
2017-02-10 2016-12-31 13F BOX CL A Put 700 -83.72 10 -85.29 n/a n/a n/a
2016-11-10 2016-09-30 13F BOX CL A Put 4,300 -18.87 68 23.64 n/a n/a n/a
2016-08-12 2016-06-30 13F BOX CL A Put 5,300 55 n/a n/a n/a
2016-02-12 2015-12-31 13F BOX CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-11-13 2015-09-30 13F BOX CL A Put 300 4 n/a n/a n/a
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.