Adtran Holdings, Inc. Insider Trading

ADTN

Last 12 months

Insiders bought 500K and sold $2.51M on the open market.

89% of the selling was scheduled in advance under 10b5-1 plans. Director Hourigan Rice Jacqueline sold 148K on Mar 4, 16% of their stake, outside a plan.

Net open-market

−$2.01M

4 buys · 3 sales

Under a 10b5-1 plan

89%

of the value sold

Insiders who bought / sold

3 / 3

executives and directors

Last open-market buy

Aug 2026

Aug 6, 2026

Get an email when ADTN's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 6	Timothy P Santo SVP of Finance; CFO	Bought	6,579	$7.60	50K	12%	Form 4
May 20	James Denson Wilson Jr Chief Revenue Officer	SoldNo plan	9,332	$14.72	137K	6.4%	Form 4
May 7 – 8	Christoph Glingener Chief Technology Officer	Sold10b5-1 plan 3 parts	148,392	$14.96 average	$2.22M	76%	Form 4
Mar 4	Hourigan Rice Jacqueline Director	SoldNo plan	14,406	$10.29	148K	16%	Form 4
Nov 28, 2025	Timothy P Santo SVP of Finance; CFO	Bought	6,150	$8.02	49K	30%	Form 4
Nov 26, 2025	Nikos Theodosopoulos Director	Bought	12,859	$7.81	100K	33%	Form 4
Nov 24, 2025	Thomas R Stanton Chairman & CEO	Bought	40,928	$7.33	300K	4.3%	Form 4

Aug 6
Timothy P Santo
SVP of Finance; CFO · bought 6,579 at $7.60
50K
12% of stake
May 20No plan
James Denson Wilson Jr
Chief Revenue Officer · sold 9,332 at $14.72
137K
6.4% of stake
May 7 – 810b5-1 plan
Christoph Glingener
Chief Technology Officer · sold 148,392 at avg $14.96
$2.22M
76% of stake
Mar 4No plan
Hourigan Rice Jacqueline
Director · sold 14,406 at $10.29
148K
16% of stake
Nov 28, 2025
Timothy P Santo
SVP of Finance; CFO · bought 6,150 at $8.02
49K
30% of stake
Nov 26, 2025
Nikos Theodosopoulos
Director · bought 12,859 at $7.81
100K
33% of stake
Nov 24, 2025
Thomas R Stanton
Chairman & CEO · bought 40,928 at $7.33
300K
4.3% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch ADTN, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Held by ETFs

ADTN is in 35 US ETFs. The largest of them, with ADTN's weight in each:

Spot a number that looks wrong? Check it in ADTN's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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