ADTRAN Holdings, Inc.
DE ˙ XTRA ˙ US00486H1059
14,51 € ↓ -1,24 (-7,87%)
2026-06-04
DEL PRIS
SecurityDE:QH9 / ADTRAN Holdings, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership1,832,872 shares
Latest Disclosed Value $ 23,057,535
Morgan Stanley reports 36.42% increase in ownership of QH9 / ADTRAN Holdings, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,832,872 shares of ADTRAN Holdings, Inc. (DE:QH9) valued at $19,492,594 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 1,343,547 shares of ADTRAN Holdings, Inc.. This represents a change in shares of 36.42% during the quarter. The current value of the position is $26,594,973 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 ADTRAN HOLDINGS COM 00486H105 1,832,872 489,325 36.42 23,058 97.49 0.0014
2026-05-27 2025-12-31 13F/A-1 ADTRAN HOLDINGS COM 00486H105 1,343,547 550,010 69.31 11,675 56.86 0.0007
2026-02-13 2025-12-31 13F ADTRAN HOLDINGS COM 00486H105 1,343,547 550,010 11,675 0.0007
2026-05-27 2025-09-30 13F/A-1 ADTRAN HOLDINGS COM 00486H105 793,537 -150,461 -15.94 7,443 -12.09 0.0005
2025-11-14 2025-09-30 13F ADTRAN HOLDINGS COM 00486H105 793,537 -150,461 7,443 0.0005
2025-08-15 2025-06-30 13F ADTRAN HOLDINGS COM 00486H105 943,998 -98,731 -9.47 8,468 -6.87 0.0006
2025-05-15 2025-03-31 13F ADTRAN HOLDINGS COM 00486H105 1,042,729 -142,444 -12.02 9,093 -7.90 0.0007
2025-05-15 2024-12-31 13F/A-1 ADTRAN HOLDINGS COM 00486H105 1,185,173 -897,496 -43.09 9,873 -20.06 0.0007
2025-02-14 2024-12-31 13F ADTRAN HOLDINGS COM 00486H105 1,185,173 -897,496 9,873 0.0007
2025-05-14 2024-09-30 13F/A-2 ADTRAN HOLDINGS COM 00486H105 2,082,669 -52,652 -2.47 12,350 9.96 0.0009
2025-02-14 2024-09-30 13F/A-1 ADTRAN HOLDINGS COM 00486H105 2,082,669 -52,652 12,350 0.0009
2024-11-14 2024-09-30 13F ADTRAN HOLDINGS COM 00486H105 2,082,669 -52,652 12,350 0.0001
2025-05-14 2024-06-30 13F/A-2 ADTRAN HOLDINGS COM 00486H105 2,135,321 817,196 62.00 11,232 56.64 0.0009
2024-10-17 2024-06-30 13F/A-1 ADTRAN HOLDINGS COM 00486H105 2,135,321 817,196 11,232 0.0009
2024-08-14 2024-06-30 13F ADTRAN HOLDINGS COM 00486H105 2,135,321 817,196 11,232 0.0009
2024-10-17 2024-03-31 13F/A-2 ADTRAN HOLDINGS COM 00486H105 1,318,125 109,327 9.04 7,171 -19.18 0.0006
2024-08-16 2024-03-31 13F/A-1 ADTRAN HOLDINGS COM 00486H105 1,318,125 109,327 7,171 0.0001
2024-05-15 2024-03-31 13F ADTRAN HOLDINGS COM 00486H105 1,318,125 109,327 7,171 0.0006
2024-08-16 2023-12-31 13F/A-1 ADTRAN HOLDINGS COM 00486H105 1,208,798 -51,070 -4.05 8,873 -14.43 0.0008
2024-02-13 2023-12-31 13F ADTRAN HOLDINGS COM 00486H105 1,208,798 -51,070 8,873 0.0008
2023-11-15 2023-09-30 13F ADTRAN HOLDINGS COM 00486H105 1,259,868 605,716 92.60 10,369 50.52 0.0011
2023-08-14 2023-06-30 13F ADTRAN HOLDINGS COM 00486H105 654,152 211,562 47.80 6,888 -1.87 0.0007
2023-05-15 2023-03-31 13F ADTRAN HOLDINGS COM 00486H105 442,590 -117,278 -20.95 7,020 -33.27 0.0008
2023-02-14 2022-12-31 13F ADTRAN HOLDINGS COM 00486H105 559,868 -6,137 -1.08 10,520 -5.08 0.0012
2022-11-14 2022-09-30 13F ADTRAN HOLDINGS COM 00486H105 566,005 566,005 11,082 0.0015
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.