ADTN

ADTRAN Holdings, Inc.

Telephone & Telegraph ApparatusNasdaqAccelerated filer

Total Trades

Buys

Sells

Largest Trade

$500K+

Insiders

Institutional Funds

160

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
Jacqueline Hourigan Rice	Director	SELL	$100K–$500K	14K	$10.29	Mar 5, 2026
Santo Timothy P	SVP of Finance; CFO	BUY	$15K–$50K	6K	$8.02	Dec 1, 2025
Theodosopoulos Nikos	Director	BUY	$100K–$500K	13K	$7.81	Dec 1, 2025
STANTON THOMAS R	Chairman & CEO	BUY	$100K–$500K	41K	$7.33	Nov 25, 2025
McCray Gregory James	Director	BUY	<$1K	36	$19.21	Dec 9, 2022
STANTON THOMAS R	Chairman & CEO	BUY	$1K–$15K	652	$19.21	Dec 9, 2022
McCray Gregory James	Director	BUY	<$1K	30	$22.90	Sep 6, 2022
McCray Gregory James	Director	GRANT	<$1K	16	$22.70	Sep 6, 2022
STANTON THOMAS R	Chairman and CEO	BUY	$1K–$15K	296	$22.90	Sep 6, 2022
Wilson James Denson Jr	Chief Revenue Offi…	BUY	$1K–$15K	102	$22.90	Sep 6, 2022
Foliano Michael	CFO	BUY	<$1K	1	$20.62	Sep 6, 2022
Protiva Brian	CEO of ADVA	SELL	$500K+	27K	$24.64	Aug 25, 2022
Protiva Brian	CEO of ADVA	EXERCISE	$100K–$500K	27K	$9.40	Aug 25, 2022
Kimpe Marc	SVP	EXERCISE	$50K–$100K	5K	$16.97	Mar 1, 2022
Kimpe Marc	SVP	SELL	$100K–$500K	5K	$20.02	Mar 1, 2022

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13F filings as of Dec 31, 2025 · 160 funds holding

Fund	Shares	Value	Type
DnB Asset Management AS	3.1M	$1M+	SH
ROYCE & ASSOCIATES LP	2.6M	$1M+	SH
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	2.5M	$1M+	SH
STATE STREET CORP	2.0M	$1M+	SH
GEODE CAPITAL MANAGEMENT, LLC	1.5M	$1M+	SH
First Eagle Investment Management, LLC	1.2M	$1M+	SH
Assenagon Asset Management S.A.	1.1M	$1M+	SH
BARCLAYS PLC	1.1M	$1M+	SH
Tieton Capital Management, LLC	988K	$1M+	SH
TUDOR INVESTMENT CORP ET AL	948K	$1M+	SH
SG Americas Securities, LLC	857K	$1M+	SH
DIMENSIONAL FUND ADVISORS LP	801K	$1M+	SH
Squarepoint Ops LLC	797K	$1M+	SH
Kovack Advisors, Inc.	754K	$1M+	SH
WESTERLY CAPITAL MANAGEMENT, LLC	700K	$1M+	SH
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	687K	$1M+	SH
NOMURA HOLDINGS INC	681K	$1M+	SH
1492 Capital Management LLC	585K	$1M+	SH
BlackRock, Inc.	576K	$1M+	SH
HRT FINANCIAL LP	546K	$1M+	SH