Bandwidth Inc.
US ˙ NasdaqGS ˙ US05988J1034

SecurityBAND / Bandwidth Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership251,700 shares
Latest Disclosed Value $ 4,485,295
Morgan Stanley reports 2.63% increase in ownership of BAND / Bandwidth Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 251,700 shares of Bandwidth Inc. (US:BAND) valued at $4,485,294 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 245,250 shares of Bandwidth Inc.. This represents a change in shares of 2.63% during the quarter. The current value of the position is $18,421,923 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)
2026-05-15 2026-03-31 13F BANDWIDTH COM CL A 05988J103 251,700 6,450 2.63 4,485 18.37 0.0003
2026-05-27 2025-12-31 13F/A-1 BANDWIDTH COM CL A 05988J103 245,250 -51,851 -17.45 3,789 -23.49 0.0002
2026-02-13 2025-12-31 13F BANDWIDTH COM CL A 05988J103 245,250 -51,851 3,789 0.0002
2026-05-27 2025-09-30 13F/A-1 BANDWIDTH COM CL A 05988J103 297,101 -55,762 -15.80 4,953 -11.73 0.0003
2025-11-14 2025-09-30 13F BANDWIDTH COM CL A 05988J103 297,101 -55,762 4,953 0.0003
2025-08-15 2025-06-30 13F BANDWIDTH COM CL A 05988J103 352,863 -86,243 -19.64 5,611 -2.47 0.0004
2025-05-15 2025-03-31 13F BANDWIDTH COM CL A 05988J103 439,106 84,475 23.82 5,752 -4.69 0.0004
2025-05-15 2024-12-31 13F/A-1 BANDWIDTH COM CL A 05988J103 354,631 106,686 43.03 6,036 39.02 0.0004
2025-02-14 2024-12-31 13F BANDWIDTH COM CL A 05988J103 354,631 106,686 6,036 0.0004
2025-05-14 2024-09-30 13F/A-2 BANDWIDTH COM CL A 05988J103 247,945 -268,627 -52.00 4,342 -50.21 0.0003
2025-02-14 2024-09-30 13F/A-1 BANDWIDTH COM CL A 05988J103 247,945 -268,627 4,342 0.0003
2024-11-14 2024-09-30 13F BANDWIDTH COM CL A 05988J103 247,945 -268,627 4,342 0.0000
2025-05-14 2024-06-30 13F/A-2 BANDWIDTH COM CL A 05988J103 516,572 -43,053 -7.69 8,720 -14.67 0.0007
2024-10-17 2024-06-30 13F/A-1 BANDWIDTH COM CL A 05988J103 516,572 -43,053 8,720 0.0007
2024-08-14 2024-06-30 13F BANDWIDTH COM CL A 05988J103 516,572 -43,053 8,720 0.0007
2024-10-17 2024-03-31 13F/A-2 BANDWIDTH COM CL A 05988J103 559,625 -54,405 -8.86 10,219 15.00 0.0008
2024-08-16 2024-03-31 13F/A-1 BANDWIDTH COM CL A 05988J103 559,625 -54,405 10,219 0.0001
2024-05-15 2024-03-31 13F BANDWIDTH COM CL A 05988J103 559,625 -54,405 10,219 0.0008
2024-08-16 2023-12-31 13F/A-1 BANDWIDTH COM CL A 05988J103 614,030 196,987 47.23 8,885 89.04 0.0008
2024-02-13 2023-12-31 13F BANDWIDTH COM CL A 05988J103 614,030 196,987 8,885 0.0008
2023-11-15 2023-09-30 13F BANDWIDTH COM CL A 05988J103 417,043 -232,523 -35.80 4,700 -47.11 0.0005
2023-08-14 2023-06-30 13F BANDWIDTH COM CL A 05988J103 649,566 -286,972 -30.64 8,886 -37.58 0.0009
2023-05-15 2023-03-31 13F BANDWIDTH COM CL A 05988J103 936,538 -135,657 -12.65 14,235 -42.15 0.0015
2023-02-14 2022-12-31 13F BANDWIDTH COM CL A 05988J103 1,072,195 194,634 22.18 24,607 135.60 0.0028
2022-11-14 2022-09-30 13F BANDWIDTH COM CL A 05988J103 877,561 188,322 27.32 10,444 -19.49 0.0014
2022-10-27 2022-06-30 13F/A-1 BANDWIDTH COM CL A 05988J103 689,239 62,955 10.05 12,972 -36.05 0.0017
2022-08-15 2022-06-30 13F BANDWIDTH COM CL A 05988J103 689,239 62,955 12,972 0.0017
2022-10-27 2022-03-31 13F/A-1 BANDWIDTH COM CL A 05988J103 626,284 -392,647 -38.54 20,285 -72.26 0.0027
2022-05-13 2022-03-31 13F BANDWIDTH COM CL A 05988J103 626,284 -392,647 20,285 0.0027
2022-02-14 2021-12-31 13F BANDWIDTH COM CL A 05988J103 1,018,931 581,514 132.94 73,119 85.15 0.0090
2021-11-15 2021-09-30 13F BANDWIDTH COM CL A 05988J103 437,417 144,650 49.41 39,491 -2.20 0.0053
2021-08-23 2021-06-30 13F/A-1 BANDWIDTH COM CL A 05988J103 292,767 148,866 103.45 40,378 121.41 0.0053
2021-08-16 2021-06-30 13F BANDWIDTH COM CL A 05988J103 292,767 148,866 40,378 0.0011
2021-05-17 2021-03-31 13F BANDWIDTH COM CL A 05988J103 143,901 -53,711 -27.18 18,237 -39.95 0.0027
2021-02-16 2020-12-31 13F BANDWIDTH COM CL A 05988J103 197,612 66,366 50.57 30,368 32.55 0.0047
2020-11-13 2020-09-30 13F BANDWIDTH COM CL A 05988J103 131,246 -18,894 -12.58 22,911 20.15 0.0044
2020-08-14 2020-06-30 13F BANDWIDTH COM CL A 05988J103 150,140 131,154 690.79 19,069 1,392.10 0.0042
2020-05-26 2020-03-31 13F/A-1 BANDWIDTH COM CL A 05988J103 18,986 -7,020 -26.99 1,278 -23.29 0.0003
2020-05-15 2020-03-31 13F BANDWIDTH COM CL A 05988J103 18,986 -7,020 1,278 98.1770
2020-02-14 2019-12-31 13F BANDWIDTH COM CL A 05988J103 26,006 -71,260 -73.26 1,666 -73.69 0.0004
2019-11-14 2019-09-30 13F BANDWIDTH COM CL A 05988J103 97,266 691 0.72 6,333 -12.59 0.0017
2019-08-14 2019-06-30 13F BANDWIDTH COM CL A 05988J103 96,575 54,421 129.10 7,245 156.64 0.0019
2019-05-15 2019-03-31 13F BANDWIDTH COM CL A 05988J103 42,154 -43,766 -50.94 2,823 -19.37 0.0008
2019-02-14 2018-12-31 13F BANDWIDTH COM CL A 05988J103 85,920 -8,892 -9.38 3,501 -31.07 0.0010
2019-04-23 2018-09-30 13F/A-2 BANDWIDTH COM CL A 05988J103 94,812 52,542 124.30 5,079 216.45 0.0013
2018-11-20 2018-09-30 13F/A-1 BANDWIDTH COM CL A 05988J103 94,812 0 5,079 0.0013
2018-11-14 2018-09-30 13F BANDWIDTH COM CL A 05988J103 94,812 52,542 5,079
2019-04-23 2018-06-30 13F/A-1 BANDWIDTH COM CL A 05988J103 42,270 16,675 65.15 1,605 91.99 0.0004
2018-08-14 2018-06-30 13F BANDWIDTH COM CL A 05988J103 42,270 16,675 1,605
2019-04-23 2018-03-31 13F/A-1 BANDWIDTH COM CL A 05988J103 25,595 2,809 12.33 836 58.63 0.0002
2018-05-14 2018-03-31 13F BANDWIDTH COM CL A 05988J103 25,595 2,809 836
2019-04-23 2017-12-31 13F/A-1 BANDWIDTH COM CL A 05988J103 22,786 22,786 527 0.0001
2018-02-14 2017-12-31 13F BANDWIDTH COM CL A 05988J103 22,786 527 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.