ADTRAN Holdings, Inc.

ADTNNASDAQ

$7.62+0.47 (+6.57% today)

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

ADTRAN Holdings, Inc. price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 6, 2026. Price (-17.1%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	9.65%	$109M	0.00%	Not reported
Vanguard Portfolio Management LLC	6.33%	$71.4M	0.00%	Not reported
Vanguard Capital Management LLC	4.32%	$48.8M	0.00%	Not reported
State Street Corp	3.80%	$42.9M	0.00%	Not reported
Royce & Associates LP	3.66%	$41.3M	0.33%	Not reported
UBS Group AG	3.62%	$40.9M	0.01%	Not reported
Two Sigma Investments, LP	3.57%	$40.3M	0.03%	Not reported
Millennium Management LLC	3.35%	$37.8M	0.01%	Not reported
JPMorgan Chase & Co	3.23%	$36.1M	0.00%	Not reported
DNB Asset Management AS	3.23%	$36.4M	0.10%	Reduce 16.14%
First Eagle Investment Management, LLC	3.08%	$34.7M	0.03%	Add 82.44%
Geode Capital Management, LLC	2.41%	$27.2M	0.00%	Not reported
Assenagon Asset Management S.A.	2.26%	$25.5M	0.02%	Not reported
Morgan Stanley	2.21%	$24.9M	0.00%	Not reported
Renaissance Technologies LLC	2.18%	$24.7M	0.03%	Not reported
Qube Research & Technologies Ltd	1.72%	$19.4M	0.02%	Not reported
Dimensional Fund Advisors LP	1.68%	$19M	0.00%	Not reported
William Blair Investment Management, LLC	1.35%	$15.3M	0.05%	Reduce 44.76%
D. E. Shaw & Co., Inc.	1.34%	$15.2M	0.01%	Not reported
Goldman Sachs Group Inc	1.29%	$14.5M	0.00%	Not reported
Marshall Wace, LLP	1.28%	$14.4M	0.01%	Not reported
FMR LLC	1.25%	$14.1M	0.00%	Not reported
Divisar Capital Management LLC	1.05%	$11.8M	2.73%	Reduce 51.88%
Federated Hermes, Inc.	1.05%	$11.8M	0.02%	Not reported
Bank of America Corp	1.04%	$11.8M	0.00%	Not reported
Arrowstreet Capital, Limited Partnership	0.97%	$10.9M	0.00%	Not reported
Point72 Asset Management, L.P.	0.94%	$10.6M	0.01%	Not reported
Heartland Advisors Inc	0.92%	$10.4M	0.46%	Not reported
Northern Trust Corp	0.91%	$10.2M	0.00%	Not reported
Charles Schwab Investment Management Inc	0.88%	$9.93M	0.00%	Not reported
Nuveen, LLC	0.86%	$9.73M	0.00%	Not reported
Kovack Advisors, Inc.	0.86%	$9.5M	0.46%	Reduce 5.41%
AQR Capital Management LLC	0.83%	$9.33M	0.00%	Not reported
Wells Fargo & Company	0.77%	$8.69M	0.00%	Not reported
Squarepoint Ops LLC	0.76%	$8.58M	0.01%	Not reported
Norges Bank	0.71%	$8M	0.00%	Not reported
1492 Capital Management LLC	0.71%	$7.97M	2.35%	Reduce 8.30%
Tudor Investment Corp Et Al	0.67%	$7.53M	0.01%	Not reported
Vanguard Fiduciary Trust Co	0.67%	$7.52M	0.00%	Not reported
Counterpoint Mutual Funds LLC	0.65%	$7.37M	0.73%	Not reported
Hennessy Advisors Inc	0.65%	$7.32M	0.23%	New Not reported
Royal Bank of Canada	0.62%	$7.01M	0.00%	Not reported
Nomura Holdings Inc	0.62%	$6.98M	0.01%	Add 8.22%
Westerly Capital Management, LLC	0.62%	$6.95M	1.28%	Reduce 37.50%
Barclays PLC	0.59%	$6.66M	0.00%	Not reported
Trexquant Investment LP	0.58%	$6.57M	0.04%	Not reported
Needham Investment Management LLC	0.55%	$6.26M	0.19%	Reduce 63.37%
Sei Investments Co	0.50%	$5.61M	0.00%	Not reported
Y-Intercept (Hong Kong) Ltd	0.46%	$5.15M	0.10%	Not reported
Mackenzie Financial Corp	0.43%	$4.9M	0.00%	Not reported

50 of 229 holders

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