ADTRAN Holdings, Inc.
DE ˙ XTRA ˙ US00486H1059
14,10 € ↓ -0,41 (-2,80%)
2026-06-05
DEL PRIS
SecurityDE:QH9 / ADTRAN Holdings, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership659,248 shares
Latest Disclosed Value $ 8,293,340
Northern Trust Corp reports 2.61% increase in ownership of QH9 / ADTRAN Holdings, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 659,248 shares of ADTRAN Holdings, Inc. (DE:QH9) valued at $7,011,102 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 642,460 shares of ADTRAN Holdings, Inc.. This represents a change in shares of 2.61% during the quarter. The current value of the position is $9,298,034 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)
2026-05-14 2026-03-31 13F ADTRAN HOLDINGS COM 00486H105 659,248 16,788 2.61 8,293 48.57 0.0002
2026-02-17 2025-12-31 13F ADTRAN HOLDINGS COM 00486H105 642,460 -31,408 -4.66 5,583 -11.68 0.0007
2025-11-14 2025-09-30 13F ADTRAN HOLDINGS COM 00486H105 673,868 -3,541 -0.52 6,321 4.02 0.0008
2025-08-13 2025-06-30 13F ADTRAN HOLDINGS COM 00486H105 677,409 -67,006 -9.00 6,076 -6.39 0.0008
2025-05-13 2025-03-31 13F ADTRAN HOLDINGS COM 00486H105 744,415 62,537 9.17 6,491 14.28 0.0010
2025-02-14 2024-12-31 13F ADTRAN HOLDINGS COM 00486H105 681,878 37,311 5.79 5,680 48.61 0.0008
2024-11-13 2024-09-30 13F ADTRAN HOLDINGS COM 00486H105 644,567 -18,637 -2.81 3,822 9.58 0.0006
2024-08-14 2024-06-30 13F ADTRAN HOLDINGS COM 00486H105 663,204 -118,212 -15.13 3,488 -17.93 0.0006
2024-05-14 2024-03-31 13F ADTRAN HOLDINGS COM 00486H105 781,416 -3,889 -0.50 4,251 -26.27 0.0007
2024-02-13 2023-12-31 13F ADTRAN HOLDINGS COM 00486H105 785,305 5,189 0.67 5,764 -10.22 0.0010
2023-11-13 2023-09-30 13F ADTRAN HOLDINGS COM 00486H105 780,116 -58,276 -6.95 6,420 -27.28 0.0012
2023-08-11 2023-06-30 13F ADTRAN HOLDINGS COM 00486H105 838,392 7,632 0.92 8,828 -32.99 0.0017
2023-05-15 2023-03-31 13F ADTRAN HOLDINGS COM 00486H105 830,760 -11,379 -1.35 13,176 -16.74 0.0026
2023-02-13 2022-12-31 13F ADTRAN HOLDINGS COM 00486H105 842,139 54,107 6.87 15,824 2.55 0.0033
2022-11-14 2022-09-30 13F ADTRAN HOLDINGS COM 00486H105 788,032 761,779 2,901.68 15,429 3,513.35 0.0035
2015-08-13 2015-06-30 13F Adtran COMM 000738A10 26,253 26,253 427 0.0003
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.