Twilio Inc.
US ˙ NYSE ˙ US90138F1021

SecurityTWLO / Twilio Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership321,447 shares
Latest Disclosed Value $ 40,444,461
Citigroup Inc ownership in TWLO / Twilio Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 321,447 shares of Twilio Inc. (US:TWLO) valued at $40,444,462 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 262,035 shares of Twilio Inc.. This represents a change in shares of 22.67% during the quarter. The current value of the position is $73,052,045 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (TWLO) 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.

TWLO / Twilio 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 TWILIO CL A 90138F102 321,447 59,412 22.67 40,444 8.51 0.0087
2026-02-13 2025-12-31 13F TWILIO CL A 90138F102 262,035 5,827 2.27 37,272 45.35 0.0164
2025-11-10 2025-09-30 13F TWILIO CL A 90138F102 256,208 97,685 61.62 25,644 30.08 0.0114
2025-08-11 2025-06-30 13F TWILIO CL A 90138F102 158,523 8,894 5.94 19,714 34.56 0.0097
2025-05-12 2025-03-31 13F TWILIO CL A 90138F102 149,629 26,294 21.32 14,650 9.90 0.0075
2025-02-12 2024-12-31 13F TWILIO CL A 90138F102 123,335 13,827 12.63 13,330 86.64 0.0079
2024-11-12 2024-09-30 13F TWILIO CL A 90138F102 109,508 -16,728 -13.25 7,142 -0.40 0.0041
2024-08-12 2024-06-30 13F TWILIO CL A 90138F102 126,236 -189,972 -60.08 7,171 -62.91 0.0046
2024-05-10 2024-03-31 13F TWILIO CL A 90138F102 316,208 227,396 256.04 19,336 186.97 0.0127
2024-02-09 2023-12-31 13F TWILIO CL A 90138F102 88,812 -47,948 -35.06 6,738 -15.82 0.0047
2023-12-06 2023-09-30 13F/A-1 TWILIO CL A 90138F102 136,760 17,993 15.15 8,005 5.94 0.0060
2023-11-09 2023-09-30 13F TWILIO CL A 90138F102 136,760 17,993 8,005 0.0024
2023-08-10 2023-06-30 13F TWILIO CL A 90138F102 118,767 2,738 2.36 7,556 -2.28 0.0050
2023-05-11 2023-03-31 13F TWILIO CL A 90138F102 116,029 -2,386 -2.01 7,731 33.36 0.0054
2023-02-09 2022-12-31 13F TWILIO CL A 90138F102 118,415 -27,791 -19.01 5,798 -42.66 0.0046
2022-11-10 2022-09-30 13F TWILIO CL A 90138F102 146,206 -25,325 -14.76 10,109 -29.69 0.0072
2022-08-10 2022-06-30 13F TWILIO CL A 90138F102 171,531 13,170 8.32 14,377 -44.92 0.0107
2022-05-12 2022-03-31 13F TWILIO CL A 90138F102 158,361 -36,107 -18.57 26,100 -49.03 0.0159
2022-02-10 2021-12-31 13F TWILIO CL A 90138F102 194,468 -20,009 -9.33 51,211 -25.16 0.0274
2021-11-10 2021-09-30 13F TWILIO CL A 90138F102 214,477 39,815 22.80 68,428 -0.61 0.0404
2021-08-10 2021-06-30 13F TWILIO CL A 90138F102 174,662 -24,971 -12.51 68,845 1.20 0.0414
2021-05-13 2021-03-31 13F TWILIO CL A 90138F102 199,633 15,924 8.67 68,028 9.39 0.0440
2021-02-11 2020-12-31 13F TWILIO CL A 90138F102 183,709 12,024 7.00 62,186 46.59 0.0367
2020-11-12 2020-09-30 13F TWILIO CL A 90138F102 171,685 81,576 90.53 42,421 114.57 0.0277
2020-08-12 2020-06-30 13F TWILIO CL A 90138F102 90,109 -249,846 -73.49 19,770 -35.01 0.0154
2020-05-12 2020-03-31 13F TWILIO CL A 90138F102 339,955 113,567 50.16 30,422 36.74 0.0275
2020-02-12 2019-12-31 13F TWILIO CL A 90138F102 226,388 -3,099 -1.35 22,248 -11.84 0.0161
2019-11-08 2019-09-30 13F TWILIO CL A 90138F102 229,487 135,129 143.21 25,235 96.14 0.0200
2019-08-12 2019-06-30 13F TWILIO CL A 90138F102 94,358 -3,546 -3.62 12,866 1.73 0.0104
2019-05-13 2019-03-31 13F TWILIO CL A 90138F102 97,904 36,296 58.91 12,647 129.90 0.0122
2019-02-12 2018-12-31 13F TWILIO CL A 90138F102 61,608 11,122 22.03 5,501 26.29 0.0056
2018-11-13 2018-09-30 13F TWILIO CL A 90138F102 50,486 -553,641 -91.64 4,356 -87.13 0.0039
2018-08-10 2018-06-30 13F TWILIO CL A 90138F102 604,127 588,850 3,854.49 33,843 5,704.97 0.0311
2018-05-11 2018-03-31 13F TWILIO CL A 90138F102 15,277 -26,230 -63.19 583 -40.45 0.0005
2018-02-12 2017-12-31 13F TWILIO CL A 90138F102 41,507 18,430 79.86 979 42.09 0.0008
2017-11-13 2017-09-30 13F TWILIO CL A 90138F102 23,077 16,749 264.68 689 274.46 0.0006
2017-08-11 2017-06-30 13F TWILIO CL A 90138F102 6,328 -5,937 -48.41 184 -48.02 0.0002
2017-05-12 2017-03-31 13F TWILIO CL A 90138F102 12,265 -6,426 -34.38 354 -34.32 0.0003
2017-02-10 2016-12-31 13F TWILIO CL A 90138F102 18,691 18,591 18,591.00 539 8,883.33 0.0005
2016-11-10 2016-09-30 13F TWILIO CL A 90138F102 100 100 6 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
(%)
2026-05-11 2026-03-31 13F TWILIO CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-13 2025-12-31 13F TWILIO CL A Call 12,500 0.00 1,778 42.13 n/a n/a n/a
2025-11-10 2025-09-30 13F TWILIO CL A Call 12,500 0.00 1,251 -19.50 n/a n/a n/a
2025-08-11 2025-06-30 13F TWILIO CL A Call 12,500 1,554 n/a n/a n/a
2025-05-12 2025-03-31 13F TWILIO CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-12 2024-12-31 13F TWILIO CL A Call 25,000 2,702 n/a n/a n/a
2022-08-10 2022-06-30 13F TWILIO CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-12 2022-03-31 13F TWILIO CL A Call 15,000 -47.37 2,472 -67.06 n/a n/a n/a
2022-02-10 2021-12-31 13F TWILIO CL A Call 28,500 -64.68 7,505 -70.85 n/a n/a n/a
2021-11-10 2021-09-30 13F TWILIO CL A Call 80,700 101.75 25,747 63.31 n/a n/a n/a
2021-08-10 2021-06-30 13F TWILIO CL A Call 40,000 15,766 n/a n/a n/a
2021-05-13 2021-03-31 13F TWILIO CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F TWILIO CL A Call 86,100 31.85 29,145 80.63 n/a n/a n/a
2020-11-12 2020-09-30 13F TWILIO CL A Call 65,300 -26.71 16,135 -17.47 n/a n/a n/a
2020-08-12 2020-06-30 13F TWILIO CL A Call 89,100 42.33 19,550 248.98 n/a n/a n/a
2020-05-12 2020-03-31 13F TWILIO CL A Call 62,600 -69.60 5,602 -72.32 n/a n/a n/a
2020-02-12 2019-12-31 13F TWILIO CL A Call 205,900 31.06 20,236 17.14 n/a n/a n/a
2019-11-08 2019-09-30 13F TWILIO CL A Call 157,100 -14.85 17,275 -31.33 n/a n/a n/a
2019-08-12 2019-06-30 13F TWILIO CL A Call 184,492 1.99 25,155 7.65 n/a n/a n/a
2019-05-13 2019-03-31 13F TWILIO CL A Call 180,884 -14.07 23,367 24.31 n/a n/a n/a
2019-02-12 2018-12-31 13F TWILIO CL A Call 210,500 3.03 18,798 6.64 n/a n/a n/a
2018-11-13 2018-09-30 13F TWILIO CL A Call 204,300 64.76 17,627 153.77 n/a n/a n/a
2018-08-10 2018-06-30 13F TWILIO CL A Call 124,000 -16.78 6,946 22.10 n/a n/a n/a
2018-05-11 2018-03-31 13F TWILIO CL A Call 149,000 249.77 5,689 466.07 n/a n/a n/a
2018-02-12 2017-12-31 13F TWILIO CL A Call 42,600 -26.04 1,005 -41.54 n/a n/a n/a
2017-11-13 2017-09-30 13F TWILIO CL A Call 57,600 -17.83 1,719 -15.78 n/a n/a n/a
2017-08-11 2017-06-30 13F TWILIO CL A Call 70,100 202.16 2,041 204.63 n/a n/a n/a
2017-05-12 2017-03-31 13F TWILIO CL A Call 23,200 -58.20 670 -58.15 n/a n/a n/a
2017-02-10 2016-12-31 13F TWILIO CL A Call 55,500 43.41 1,601 -35.73 n/a n/a n/a
2016-11-10 2016-09-30 13F TWILIO CL A Call 38,700 2,491 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
(%)
2026-05-11 2026-03-31 13F TWILIO CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-13 2025-12-31 13F TWILIO CL A Put 37,500 0.00 5,334 42.13 n/a n/a n/a
2025-11-10 2025-09-30 13F TWILIO CL A Put 37,500 0.00 3,753 -19.52 n/a n/a n/a
2025-08-11 2025-06-30 13F TWILIO CL A Put 37,500 4,664 n/a n/a n/a
2022-02-10 2021-12-31 13F TWILIO CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-10 2021-09-30 13F TWILIO CL A Put 80,700 101.75 25,747 63.31 n/a n/a n/a
2021-08-10 2021-06-30 13F TWILIO CL A Put 40,000 15,766 n/a n/a n/a
2021-05-13 2021-03-31 13F TWILIO CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F TWILIO CL A Put 141,900 9.49 48,033 49.99 n/a n/a n/a
2020-11-12 2020-09-30 13F TWILIO CL A Put 129,600 9.46 32,024 23.26 n/a n/a n/a
2020-08-12 2020-06-30 13F TWILIO CL A Put 118,400 0.25 25,980 145.81 n/a n/a n/a
2020-05-12 2020-03-31 13F TWILIO CL A Put 118,100 -36.84 10,569 -42.49 n/a n/a n/a
2020-02-12 2019-12-31 13F TWILIO CL A Put 187,000 63.89 18,378 46.48 n/a n/a n/a
2019-11-08 2019-09-30 13F TWILIO CL A Put 114,100 -12.12 12,546 -29.13 n/a n/a n/a
2019-08-12 2019-06-30 13F TWILIO CL A Put 129,840 -10.15 17,704 -5.16 n/a n/a n/a
2019-05-13 2019-03-31 13F TWILIO CL A Put 144,500 -42.98 18,667 -17.51 n/a n/a n/a
2019-02-12 2018-12-31 13F TWILIO CL A Put 253,400 53.58 22,629 58.96 n/a n/a n/a
2018-11-13 2018-09-30 13F TWILIO CL A Put 165,000 138.78 14,236 267.76 n/a n/a n/a
2018-08-10 2018-06-30 13F TWILIO CL A Put 69,100 14.03 3,871 67.29 n/a n/a n/a
2018-05-11 2018-03-31 13F TWILIO CL A Put 60,600 -2.73 2,314 57.41 n/a n/a n/a
2018-02-12 2017-12-31 13F TWILIO CL A Put 62,300 9.49 1,470 -13.43 n/a n/a n/a
2017-11-13 2017-09-30 13F TWILIO CL A Put 56,900 67.35 1,698 71.52 n/a n/a n/a
2017-08-11 2017-06-30 13F TWILIO CL A Put 34,000 319.75 990 323.08 n/a n/a n/a
2017-05-12 2017-03-31 13F TWILIO CL A Put 8,100 -75.00 234 -74.97 n/a n/a n/a
2017-02-10 2016-12-31 13F TWILIO CL A Put 32,400 281.18 935 70.93 n/a n/a n/a
2016-11-10 2016-09-30 13F TWILIO CL A Put 8,500 547 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.