ADTRAN Holdings, Inc.
DE ˙ XTRA ˙ US00486H1059
15,75 € ↑0,03 (0,19%)
2026-06-03
DEL PRIS
SecurityDE:QH9 / ADTRAN Holdings, Inc.
InstitutionAlgert Global Llc
Latest Disclosed Ownership228,160 shares
Latest Disclosed Value $ 2,870
Algert Global Llc reports 41.09% decrease in ownership of QH9 / ADTRAN Holdings, Inc.

On May 14, 2026 - Algert Global Llc filed a 13F-HR form disclosing ownership of 228,160 shares of ADTRAN Holdings, Inc. (DE:QH9) valued at $2,426,482 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 387,330 shares of ADTRAN Holdings, Inc.. This represents a change in shares of -41.09% during the quarter. The current value of the position is $3,593,520 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)
2026-05-14 2026-03-31 13F ADTRAN HOLDINGS COM 00486H105 228,160 -159,170 -41.09 3 -33.33 0.0432
2026-02-17 2025-12-31 13F ADTRAN HOLDINGS COM 00486H105 387,330 159,170 69.76 3 50.00 0.0525
2025-11-14 2025-09-30 13F ADTRAN HOLDINGS COM 00486H105 228,160 70,510 44.73 2 100.00 0.0358
2025-08-14 2025-06-30 13F DTRAN HOLDINGS COM 00486H105 157,650 0 0.00 1 0.00 0.0296
2025-05-13 2025-03-31 13F ADTRAN HOLDINGS COM 00486H105 157,650 136,150 633.26 1 0.0340
2025-02-14 2024-12-31 13F ADTRAN HOLDINGS COM 00486H105 21,500 21,500 0 0.0042
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.