Bandwidth Inc.
US ˙ NasdaqGS ˙ US05988J1034

SecurityBAND / Bandwidth Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership4,233 shares
Latest Disclosed Value $ 75,433
Citigroup Inc reports 2.06% decrease in ownership of BAND / Bandwidth Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 4,233 shares of Bandwidth Inc. (US:BAND) valued at $75,432 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,322 shares of Bandwidth Inc.. This represents a change in shares of -2.06% during the quarter. The current value of the position is $277,685 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)
2026-05-11 2026-03-31 13F BANDWIDTH COM CL A 05988J103 4,233 -89 -2.06 75 13.64 0.0000
2026-02-13 2025-12-31 13F BANDWIDTH COM CL A 05988J103 4,322 871 25.24 67 15.79 0.0000
2025-11-10 2025-09-30 13F BANDWIDTH COM CL A 05988J103 3,451 -8,034 -69.95 58 -68.68 0.0000
2025-08-11 2025-06-30 13F BANDWIDTH COM CL A 05988J103 11,485 -8,645 -42.95 183 -30.80 0.0001
2025-05-12 2025-03-31 13F BANDWIDTH COM CL A 05988J103 20,130 -1,861 -8.46 264 -29.68 0.0001
2025-02-12 2024-12-31 13F BANDWIDTH COM CL A 05988J103 21,991 -14,778 -40.19 374 -41.84 0.0002
2024-11-12 2024-09-30 13F BANDWIDTH COM CL A 05988J103 36,769 10,551 40.24 644 45.48 0.0004
2024-08-12 2024-06-30 13F BANDWIDTH COM CL A 05988J103 26,218 3,999 18.00 443 9.14 0.0003
2024-05-10 2024-03-31 13F BANDWIDTH COM CL A 05988J103 22,219 4,408 24.75 406 57.59 0.0003
2024-02-09 2023-12-31 13F BANDWIDTH COM CL A 05988J103 17,811 -4,734 -21.00 258 1.18 0.0002
2023-12-06 2023-09-30 13F/A-1 BANDWIDTH COM CL A 05988J103 22,545 -444 -1.93 254 -19.11 0.0002
2023-11-09 2023-09-30 13F BANDWIDTH COM CL A 05988J103 22,545 -444 254 0.0001
2023-08-10 2023-06-30 13F BANDWIDTH COM CL A 05988J103 22,989 -13,809 -37.53 314 -43.83 0.0002
2023-05-11 2023-03-31 13F BANDWIDTH COM CL A 05988J103 36,798 7,134 24.05 559 -17.79 0.0004
2023-02-09 2022-12-31 13F BANDWIDTH COM CL A 05988J103 29,664 -690 -2.27 681 88.37 0.0005
2022-11-10 2022-09-30 13F BANDWIDTH COM CL A 05988J103 30,354 -48,214 -61.37 361 -75.59 0.0003
2022-08-10 2022-06-30 13F BANDWIDTH COM CL A 05988J103 78,568 37,956 93.46 1,479 12.56 0.0011
2022-05-12 2022-03-31 13F BANDWIDTH COM CL A 05988J103 40,612 -7,823 -16.15 1,314 -62.20 0.0008
2022-02-10 2021-12-31 13F BANDWIDTH COM CL A 05988J103 48,435 -1,586 -3.17 3,476 -23.03 0.0019
2021-11-10 2021-09-30 13F BANDWIDTH COM CL A 05988J103 50,021 1,713 3.55 4,516 -32.21 0.0027
2021-08-10 2021-06-30 13F BANDWIDTH COM CL A 05988J103 48,308 45,256 1,482.83 6,662 1,625.91 0.0040
2021-05-13 2021-03-31 13F BANDWIDTH COM CL A 05988J103 3,052 -2,386 -43.88 386 -53.77 0.0002
2021-02-11 2020-12-31 13F BANDWIDTH COM CL A 05988J103 5,438 3,374 163.47 835 131.30 0.0005
2020-11-12 2020-09-30 13F BANDWIDTH COM CL A 05988J103 2,064 -11,928 -85.25 361 -79.68 0.0002
2020-08-12 2020-06-30 13F BANDWIDTH COM CL A 05988J103 13,992 9,253 195.25 1,777 457.05 0.0014
2020-05-12 2020-03-31 13F BANDWIDTH COM CL A 05988J103 4,739 1,269 36.57 319 43.69 0.0003
2020-02-12 2019-12-31 13F BANDWIDTH COM CL A 05988J103 3,470 -8,764 -71.64 222 -72.15 0.0002
2019-11-08 2019-09-30 13F BANDWIDTH COM CL A 05988J103 12,234 7,811 176.60 797 140.06 0.0006
2019-08-12 2019-06-30 13F BANDWIDTH COM CL A 05988J103 4,423 -22,047 -83.29 332 -81.26 0.0003
2019-05-13 2019-03-31 13F BANDWIDTH COM CL A 05988J103 26,470 21,052 388.56 1,772 701.81 0.0017
2019-02-12 2018-12-31 13F BANDWIDTH COM CL A 05988J103 5,418 -12,288 -69.40 221 -76.71 0.0002
2018-11-13 2018-09-30 13F BANDWIDTH COM CL A 05988J103 17,706 13,838 357.76 949 545.58 0.0008
2018-08-10 2018-06-30 13F BANDWIDTH COM CL A 05988J103 3,868 3,868 147 0.0001
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.