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$ADTN

$16.81 -$0.75 (4.27%)

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Insider Transactions

Insider Transaction Summary

THOMAS R STANTON

1,126,554 shares

Net: +176,008 B/S: ∞

Brian Protiva

253,545 shares

Net: 0 B/S: -

James Denson Jr Wilson

152,609 shares

Net: +22,831 B/S: ∞

Balan Nair

125,373 shares

Net: +13,809 B/S: ∞

H FENWICK HUSS

107,600 shares

Net: +13,809 B/S: ∞

Kathryn A Walker

98,663 shares

Net: +13,809 B/S: ∞

Gregory James McCray

72,893 shares

Net: +13,809 B/S: ∞

Nikos Theodosopoulos

65,963 shares

Net: +26,668 B/S: ∞

Timothy P Santo

53,345 shares

Net: +32,901 B/S: ∞

Ulrich Dopfer

48,195 shares

Net: 0 B/S: -

Michael Foliano

41,692 shares

Net: 0 B/S: -

Eduard Scheiterer

40,027 shares

Net: 0 B/S: -

Christoph Glingener

32,775 shares

Net: 0 B/S: -

Daniel T Whalen

29,700 shares

Net: 0 B/S: -

Jeffrey F McInnis

15,093 shares

Net: 0 B/S: -

Hourigan Rice Jacqueline

13,809 shares

Net: -597 B/S: 0.96

Roger D Shannon

12,809 shares

Net: 0 B/S: -

Kevin P. Heering

12,017 shares

Net: 0 B/S: -

John Neville

10,606 shares

Net: 0 B/S: -

Johanna Hey

8,294 shares

Net: 0 B/S: -

KEVIN W SCHNEIDER

4,500 shares

Net: 0 B/S: -

Charles E. Marsh

3,280 shares

Net: 0 B/S: -

Anthony J. Melone

102 shares

Net: 0 B/S: -

WILLIAM L MARKS

97 shares

Net: 0 B/S: -

ROY J NICHOLS

26 shares

Net: 0 B/S: -

Ronald Centis

0 shares

Net: 0 B/S: -

P STEVEN LOCKE

0 shares

Net: 0 B/S: -

Robert Conger

0 shares

Net: 0 B/S: -

Raymond R Schansman

0 shares

Net: 0 B/S: -

Ray Harris

0 shares

Net: 0 B/S: -

Marc Kimpe

0 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
THOMAS R STANTON	1,126,554	+176,008	∞
Brian Protiva	253,545	0	-
James Denson Jr Wilson	152,609	+22,831	∞
Balan Nair	125,373	+13,809	∞
H FENWICK HUSS	107,600	+13,809	∞
Kathryn A Walker	98,663	+13,809	∞
Gregory James McCray	72,893	+13,809	∞
Nikos Theodosopoulos	65,963	+26,668	∞
Timothy P Santo	53,345	+32,901	∞
Ulrich Dopfer	48,195	0	-
Michael Foliano	41,692	0	-
Eduard Scheiterer	40,027	0	-
Christoph Glingener	32,775	0	-
Daniel T Whalen	29,700	0	-
Jeffrey F McInnis	15,093	0	-
Hourigan Rice Jacqueline	13,809	-597	0.96
Roger D Shannon	12,809	0	-
Kevin P. Heering	12,017	0	-
John Neville	10,606	0	-
Johanna Hey	8,294	0	-
KEVIN W SCHNEIDER	4,500	0	-
Charles E. Marsh	3,280	0	-
Anthony J. Melone	102	0	-
WILLIAM L MARKS	97	0	-
ROY J NICHOLS	26	0	-
Ronald Centis	0	0	-
P STEVEN LOCKE	0	0	-
Robert Conger	0	0	-
Raymond R Schansman	0	0	-
Ray Harris	0	0	-
Marc Kimpe	0	0	-

Individual Transactions

April 01, 2026

Timothy P Santo

Grant/Award Acquisition

Change: +28,252

Price: $0.00

Shares: 53,345

Value: +$0

James Denson Jr Wilson

Grant/Award Acquisition

Change: +24,908

Price: $0.00

Shares: 152,609

Value: +$0

THOMAS R STANTON

Grant/Award Acquisition

Change: +170,723

Price: $0.00

Shares: 1,126,554

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Timothy P Santo	Apr 03	Grant/Award Acquisition (A) Compensation/Award	53,345	+28,252	$0.00	+$0
James Denson Jr Wilson	Apr 03	Grant/Award Acquisition (A) Compensation/Award	152,609	+24,908	$0.00	+$0
THOMAS R STANTON	Apr 03	Grant/Award Acquisition (A) Compensation/Award	1,126,554	+170,723	$0.00	+$0

March 19, 2026

Timothy P Santo

Tax Payment

Change: -1,501

Price: $11.90

Shares: 25,093

Value: -$17,861

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Timothy P Santo	Mar 23	Tax Payment (F) Tax Payment	25,093	-1,501	$11.90	-$17,861

March 04, 2026

Hourigan Rice Jacqueline

Open Market Sale

Change: -14,406

Price: $10.29

Shares: 13,809

Value: -$148,237

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Hourigan Rice Jacqueline	Mar 05	Open Market Sale (S) Market Sale	13,809	-14,406	$10.29	-$148,237

January 26, 2026

James Denson Jr Wilson

Tax Payment

Change: -1,309

Price: $9.24

Shares: 127,701

Value: -$12,095

James Denson Jr Wilson

Tax Payment

Change: -1,087

Price: $9.24

Shares: 127,923

Value: -$10,043

James Denson Jr Wilson

Grant/Award Acquisition

Change: +3,777

Price: $0.00

Shares: 129,010

Value: +$0

THOMAS R STANTON

Tax Payment

Change: -12,407

Price: $9.24

Shares: 955,471

Value: -$114,640

THOMAS R STANTON

Grant/Award Acquisition

Change: +27,973

Price: $0.00

Shares: 967,878

Value: +$0

James Denson Jr Wilson

Tax Payment

Change: -998

Price: $9.73

Shares: 125,233

Value: -$9,710

THOMAS R STANTON

Tax Payment

Change: -14,409

Price: $9.73

Shares: 939,905

Value: -$140,199

Insider	Filing Date	Transaction	Shares	Change	Price	Value
James Denson Jr Wilson	Jan 30	Tax Payment (F) Tax Payment	127,701	-1,309	$9.24	-$12,095
James Denson Jr Wilson	Jan 28	Tax Payment (F) Tax Payment	127,923	-1,087	$9.24	-$10,043
James Denson Jr Wilson	Jan 28	Grant/Award Acquisition (A) Compensation/Award	129,010	+3,777	$0.00	+$0
THOMAS R STANTON	Jan 28	Tax Payment (F) Tax Payment	955,471	-12,407	$9.24	-$114,640
THOMAS R STANTON	Jan 28	Grant/Award Acquisition (A) Compensation/Award	967,878	+27,973	$0.00	+$0
James Denson Jr Wilson	Jan 27	Tax Payment (F) Tax Payment	125,233	-998	$9.73	-$9,710
THOMAS R STANTON	Jan 27	Tax Payment (F) Tax Payment	939,905	-14,409	$9.73	-$140,199

January 24, 2026

James Denson Jr Wilson

Tax Payment

Change: -1,227

Price: $9.55

Shares: 126,231

Value: -$11,717

THOMAS R STANTON

Tax Payment

Change: -17,535

Price: $9.55

Shares: 954,314

Value: -$167,459

Insider	Filing Date	Transaction	Shares	Change	Price	Value
James Denson Jr Wilson	Jan 27	Tax Payment (F) Tax Payment	126,231	-1,227	$9.55	-$11,717
THOMAS R STANTON	Jan 27	Tax Payment (F) Tax Payment	954,314	-17,535	$9.55	-$167,459

January 20, 2026

James Denson Jr Wilson

Tax Payment

Change: -765

Price: $9.24

Shares: 127,458

Value: -$7,068

THOMAS R STANTON

Tax Payment

Change: -10,247

Price: $9.24

Shares: 971,849

Value: -$94,682

Insider	Filing Date	Transaction	Shares	Change	Price	Value
James Denson Jr Wilson	Jan 22	Tax Payment (F) Tax Payment	127,458	-765	$9.24	-$7,068
THOMAS R STANTON	Jan 22	Tax Payment (F) Tax Payment	971,849	-10,247	$9.24	-$94,682

December 31, 2025

Hourigan Rice Jacqueline

Grant/Award Acquisition

Change: +13,809

Price: $0.00

Shares: 28,215

Value: +$0

Nikos Theodosopoulos

Grant/Award Acquisition

Change: +13,809

Price: $0.00

Shares: 65,963

Value: +$0

Balan Nair

Grant/Award Acquisition

Change: +13,809

Price: $0.00

Shares: 125,373

Value: +$0

Gregory James McCray

Grant/Award Acquisition

Change: +13,809

Price: $0.00

Shares: 72,893

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Hourigan Rice Jacqueline	Jan 05	Grant/Award Acquisition (A) Compensation/Award	28,215	+13,809	$0.00	+$0
Nikos Theodosopoulos	Jan 05	Grant/Award Acquisition (A) Compensation/Award	65,963	+13,809	$0.00	+$0
Balan Nair	Jan 05	Grant/Award Acquisition (A) Compensation/Award	125,373	+13,809	$0.00	+$0
Gregory James McCray	Jan 05	Grant/Award Acquisition (A) Compensation/Award	72,893	+13,809	$0.00	+$0