ADTRAN HOLDINGS INC

Each fund name links to that filer's expert page. Share counts and per-fund weights are pending the 13F ingest fix (portfolios_expertholding.units is currently mis-populated — see the same caveat on the fund detail page's holdings table). Quarter-over-quarter delta ships with the metrics pipeline.

See all 226 13F holders · Pro →

Smart Money · top-200 alpha cohort

8 holders · Q1 2026

$ADTN is held by 8 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 0.02%, with an average of 0.00% of portfolio. Largest holder: Connor, Clark & Lunn Investment Management Ltd. at 0.02%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.

Connor, Clark & Lunn Investment Management Ltd.

Voloridge Investment Management, LLC

0.00% held

α +15.5pts

UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC

Nisa Investment Advisors, LLC

0.00% held

α +16.6pts

Johnson Financial Group, Inc.

0.00% held

α +14.7pts

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Insider activity · last 90 days

No insider activity

No Form 4 filings on record for $ADTN in the recent window.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $ADTN in the recent window.

Convergence · Pattern Engine ships in v1.1

30-day window

In development

Convergence detection for $ADTN lands with the Pattern Engine.

Once the Pattern Engine ships, this section will surface every active convergence event involving $ADTN — the institutional managers and Congress members on the same name, the 30-day window, and the combined position size.

Source data: SEC EDGAR · 13F-HR · Form 4 · CapitolTrades · Last refreshed 14:58 UTC.