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Short interest & flow

Most Shorted Squeeze Risk Largest Short Volume Highest Off-Exchange Share

Ownership & fundamentals

Insider Sentiment Largest Buybacks Going-Concern Flags

Institutions 13F filings, portfolios & smart money

Filers & Rankings

Browse Filers Top by AUM Smart Money Index Superinvestors AUM Movers Most-Held Stocks Last Quarter's Movers Overlap Matrix Clone Backtest Beneficial Ownership

13F Activity

13F Statistics Latest Filings 13F Trends Double-Down Report Conviction Heat Map

Markets Insiders, funds, macro, IPOs & Congress

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Brian Koontz

Brian Koontz

Analyst

Analyst — Needham and Company LLC

Earnings-call appearances

ADTRAN Holdings, Inc. Q2 FY2026 Earnings Call
ADTRAN Holdings, Inc. (ADTN)

2026-07-22

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