ADTRAN Holdings, Inc.
DE ˙ XTRA ˙ US00486H1059
14,10 € ↓ -0,41 (-2,80%)
2026-06-05
DEL PRIS
SecurityDE:QH9 / ADTRAN Holdings, Inc.
InstitutionMillennium Management Llc
ManagerIsrael Englander
Latest Disclosed Ownership1,896,411 shares
Latest Disclosed Value $ 23,856,850
Millennium Management Llc reports 29.63% decrease in ownership of QH9 / ADTRAN Holdings, Inc.

On May 15, 2026 - Millennium Management Llc filed a 13F-HR form disclosing ownership of 1,896,411 shares of ADTRAN Holdings, Inc. (DE:QH9) valued at $20,168,331 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,694,800 shares of ADTRAN Holdings, Inc.. This represents a change in shares of -29.63% during the quarter. The current value of the position is $26,746,981 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 1,896,411 -798,389 -29.63 23,857 1.87 0.0099
2026-02-17 2025-12-31 13F ADTRAN HOLDINGS COM 00486H105 2,694,800 2,122,844 371.16 23,418 336.56 0.0098
2025-11-14 2025-09-30 13F ADTRAN HOLDINGS COM 00486H105 571,956 365,520 177.06 5,365 189.79 0.0023
2025-08-14 2025-06-30 13F ADTRAN HOLDINGS COM 00486H105 206,436 85,174 70.24 1,852 75.12 0.0009
2025-05-15 2025-03-31 13F ADTRAN HOLDINGS COM 00486H105 121,262 -943,327 -88.61 1,057 -88.08 0.0006
2025-02-14 2024-12-31 13F ADTRAN HOLDINGS COM 00486H105 1,064,589 -99,625 -8.56 8,868 28.47 0.0043
2024-11-14 2024-09-30 13F ADTRAN HOLDINGS COM 00486H105 1,164,214 -385,407 -24.87 6,904 -15.31 0.0033
2024-08-14 2024-06-30 13F ADTRAN HOLDINGS COM 00486H105 1,549,621 1,532,257 8,824.33 8,151 8,571.28 0.0038
2024-05-15 2024-03-31 13F ADTRAN HOLDINGS COM 00486H105 17,364 -49,041 -73.85 94 -80.70 0.0000
2024-02-14 2023-12-31 13F ADTRAN HOLDINGS COM 00486H105 66,405 20,311 44.06 487 28.50 0.0002
2023-11-14 2023-09-30 13F ADTRAN HOLDINGS COM 00486H105 46,094 -52,765 -53.37 379 -63.56 0.0002
2023-08-14 2023-06-30 13F ADTRAN HOLDINGS COM 00486H105 98,859 26,261 36.17 1,041 -9.64 0.0005
2023-05-15 2023-03-31 13F ADTRAN HOLDINGS COM 00486H105 72,598 72,598 1,151 0.0007
2023-02-14 2022-12-31 13F ADTRAN HOLDINGS COM 00486H105 0 -117,402 -100.00 0 -100.00
2022-11-14 2022-09-30 13F ADTRAN HOLDINGS COM 00486H105 117,402 117,402 2,299 0.0014
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.