Belden Inc.
US ˙ NYSE ˙ US0774541066

SecurityBDC / Belden Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership297,374 shares
Latest Disclosed Value $ 34,147,516
Morgan Stanley reports 2.39% increase in ownership of BDC / Belden Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 297,374 shares of Belden Inc. (US:BDC) valued at $34,147,456 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 290,437 shares of Belden Inc.. This represents a change in shares of 2.39% during the quarter. The current value of the position is $32,925,249 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.

Upgrade to unlock premium data and export to Excel .

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 BELDEN COM 077454106 297,374 6,937 2.39 34,148 0.88 0.0021
2026-05-27 2025-12-31 13F/A-1 BELDEN COM 077454106 290,437 -39,193 -11.89 33,851 -14.62 0.0020
2026-02-13 2025-12-31 13F BELDEN COM 077454106 290,437 -39,193 33,851 0.0020
2026-05-27 2025-09-30 13F/A-1 BELDEN COM 077454106 329,630 30,149 10.07 39,645 14.31 0.0024
2025-11-14 2025-09-30 13F BELDEN COM 077454106 329,630 30,149 39,645 0.0024
2025-08-15 2025-06-30 13F BELDEN COM 077454106 299,481 -23,385 -7.24 34,680 7.15 0.0023
2025-05-15 2025-03-31 13F BELDEN COM 077454106 322,866 -23,037 -6.66 32,367 -16.91 0.0023
2025-05-15 2024-12-31 13F/A-1 BELDEN COM 077454106 345,903 -21,944 -5.97 38,952 -9.59 0.0027
2025-02-14 2024-12-31 13F BELDEN COM 077454106 345,903 -21,944 38,952 0.0027
2025-05-14 2024-09-30 13F/A-2 BELDEN COM 077454106 367,847 80,911 28.20 43,086 60.09 0.0031
2025-02-14 2024-09-30 13F/A-1 BELDEN COM 077454106 367,847 80,911 43,086 0.0031
2024-11-14 2024-09-30 13F BELDEN COM 077454106 367,847 80,911 43,086 0.0004
2025-05-14 2024-06-30 13F/A-2 BELDEN COM 077454106 286,936 -60,152 -17.33 26,915 -16.27 0.0021
2024-10-17 2024-06-30 13F/A-1 BELDEN COM 077454106 286,936 -60,152 26,915 0.0021
2024-08-14 2024-06-30 13F BELDEN COM 077454106 286,936 -60,152 26,915 0.0021
2024-10-17 2024-03-31 13F/A-2 BELDEN COM 077454106 347,088 28,019 8.78 32,144 30.41 0.0026
2024-08-16 2024-03-31 13F/A-1 BELDEN COM 077454106 347,088 28,019 32,144 0.0026
2024-05-15 2024-03-31 13F BELDEN COM 077454106 347,088 28,019 32,144 0.0026
2024-08-16 2023-12-31 13F/A-1 BELDEN COM 077454106 319,069 -10,555 -3.20 24,648 -22.55 0.0022
2024-02-13 2023-12-31 13F BELDEN COM 077454106 319,069 -10,555 24,648 0.0022
2023-11-15 2023-09-30 13F BELDEN COM 077454106 329,624 25,053 8.23 31,825 9.24 0.0032
2023-08-14 2023-06-30 13F BELDEN COM 077454106 304,571 -14,981 -4.69 29,132 5.07 0.0029
2023-05-15 2023-03-31 13F BELDEN COM 077454106 319,552 53,243 19.99 27,728 44.81 0.0030
2023-02-14 2022-12-31 13F BELDEN COM 077454106 266,309 -129,023 -32.64 19,148 -19.31 0.0022
2022-11-14 2022-09-30 13F BELDEN COM 077454106 395,332 35,823 9.96 23,728 23.90 0.0032
2022-10-27 2022-06-30 13F/A-1 BELDEN COM 077454106 359,509 199,636 124.87 19,151 116.22 0.0025
2022-08-15 2022-06-30 13F BELDEN COM 077454106 359,509 199,636 19,151 0.0025
2022-10-27 2022-03-31 13F/A-1 BELDEN COM 077454106 159,873 -410,430 -71.97 8,857 -76.37 0.0012
2022-05-13 2022-03-31 13F BELDEN COM 077454106 159,873 -410,430 8,857 0.0012
2022-02-14 2021-12-31 13F BELDEN COM 077454106 570,303 387,169 211.41 37,486 251.32 0.0046
2021-11-15 2021-09-30 13F BELDEN COM 077454106 183,134 84,938 86.50 10,670 114.86 0.0014
2021-08-23 2021-06-30 13F/A-1 BELDEN COM 077454106 98,196 -79,284 -44.67 4,966 -36.94 0.0007
2021-08-16 2021-06-30 13F BELDEN COM 077454106 98,196 -79,284 4,966 0.0001
2021-05-17 2021-03-31 13F BELDEN COM 077454106 177,480 57,389 47.79 7,875 56.50 0.0012
2021-02-16 2020-12-31 13F BELDEN COM 077454106 120,091 113,721 1,785.26 5,032 2,441.41 0.0008
2020-11-13 2020-09-30 13F BELDEN COM 077454106 6,370 -55,909 -89.77 198 -90.23 0.0000
2020-08-14 2020-06-30 13F BELDEN COM 077454106 62,279 34,219 121.95 2,027 100.10 0.0004
2020-05-26 2020-03-31 13F/A-1 BELDEN COM 077454106 28,060 -49,817 -63.97 1,013 -76.35 0.0003
2020-05-15 2020-03-31 13F BELDEN COM 077454106 28,060 -49,817 1,013 77.8195
2020-02-14 2019-12-31 13F BELDEN COM 077454106 77,877 40,040 105.82 4,284 112.29 0.0010
2019-11-14 2019-09-30 13F BELDEN COM 077454106 37,837 5,932 18.59 2,018 6.15 0.0005
2019-08-14 2019-06-30 13F BELDEN COM 077454106 31,905 18,885 145.05 1,901 171.96 0.0005
2019-05-15 2019-03-31 13F BELDEN COM 077454106 13,020 -61,251 -82.47 699 -77.47 0.0002
2019-02-14 2018-12-31 13F BELDEN COM 077454106 74,271 -32,942 -30.73 3,102 -59.49 0.0009
2019-04-23 2018-09-30 13F/A-2 BELDEN COM 077454106 107,213 -26,379 -19.75 7,657 -6.22 0.0019
2018-11-20 2018-09-30 13F/A-1 BELDEN COM 077454106 107,213 0 7,657 0.0019
2018-11-14 2018-09-30 13F BELDEN COM 077454106 107,213 -26,379 7,657
2019-04-23 2018-06-30 13F/A-1 BELDEN COM 077454106 133,592 -37,267 -21.81 8,165 -30.68 0.0022
2018-08-14 2018-06-30 13F BELDEN COM 077454106 133,592 -37,267 8,165
2019-04-23 2018-03-31 13F/A-1 BELDEN COM 077454106 170,859 4,373 2.63 11,779 -8.31 0.0033
2018-05-14 2018-03-31 13F BELDEN COM 077454106 170,859 4,373 11,779
2019-04-23 2017-12-31 13F/A-1 BELDEN COM 077454106 166,486 13,680 8.95 12,847 4.40 0.0035
2018-02-14 2017-12-31 13F BELDEN COM 077454106 166,486 13,680 12,847
2017-11-14 2017-09-30 13F BELDEN COM 077454106 152,806 -7,521 -4.69 12,305 1.74 0.0037
2017-08-11 2017-06-30 13F BELDEN COM 077454106 160,327 -154,400 -49.06 12,094 -44.46 0.0037
2017-05-22 2017-03-31 13F/A-1 BELDEN COM 077454106 314,727 66,632 26.86 21,777 17.40 0.0067
2017-05-12 2017-03-31 13F BELDEN COM 077454106 314,727 21,777
2017-02-22 2016-12-31 13F/A-1 BELDEN COM 077454106 248,095 41,469 20.07 18,549 30.13 0.0061
2017-02-13 2016-12-31 13F BELDEN COM 077454106 248,095 18,549
2016-11-10 2016-09-30 13F BELDEN COM 077454106 206,626 6,857 3.43 14,254 18.18 0.0049
2016-08-12 2016-06-30 13F BELDEN COM 077454106 199,769 31,352 18.62 12,061 16.68 0.0044
2016-05-12 2016-03-31 13F BELDEN COM 077454106 168,417 -3,638 -2.11 10,337 26.01 0.0040
2016-02-09 2015-12-31 13F BELDEN COM 077454106 172,055 123,423 253.79 8,203 261.37 0.0030
2016-02-08 2015-09-30 13F/A-1 BELDEN COM 077454106 48,632 -57,461 -54.16 2,270 -73.66 0.0008
2015-11-09 2015-09-30 13F BELDEN COM 077454106 48,632 2,270
2015-08-12 2015-06-30 13F BELDEN COM 077454106 106,093 23,786 28.90 8,617 11.92 0.0030
2015-05-14 2015-03-31 13F BELDEN COM 077454106 82,307 12,378 17.70 7,699 39.73 0.0028
2015-02-13 2014-12-31 13F BELDEN COM 077454106 69,929 -179,070 -71.92 5,510 -65.44 0.0020
2014-12-16 2014-09-30 13F/A-1 BELDEN COM 077454106 248,999 -17,164 -6.45 15,942 -23.37 0.0061
2014-11-14 2014-09-30 13F BELDEN COM 077454106 248,999 15,942
2014-08-12 2014-06-30 13F BELDEN COM 077454106 266,163 -71,765 -21.24 20,803 -11.55 0.0356
2014-05-13 2014-03-31 13F BELDEN COM 077454106 337,928 111,924 49.52 23,520 47.72 0.0098
2014-02-13 2013-12-31 13F BELDEN COM 077454106 226,004 106,822 89.63 15,922 108.57 0.0068
2013-11-13 2013-09-30 13F BELDEN INC COM STK COM 077454106 119,182 68,355 134.49 7,634 200.79 0.0036
2013-08-08 2013-06-30 13F BELDEN INC COM STK COM 077454106 50,827 50,827 2,538 0.0013
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.