There is a long list of 170 institutional holders of ADTN within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of ADTN by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-ADTN table below, the initial column indicates the name of each top institutional holder of ADTN, with a link to that fund's top holdings. The next columns indicate the amount of ADTN stock held by each of the institutional holders of ADTN, followed by the ADTN position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	12,901,791	$94,699	12/31/2023
ADTN	12,901,791	$94,699	12/31/2023
Vanguard Group Inc.	7,722,425	$56,683	12/31/2023
ADTN	7,722,425	$56,683	12/31/2023
William Blair Investment Management LLC	3,638,305	$26,705	12/31/2023
ADTN	3,638,305	$26,705	12/31/2023
Divisar Capital Management LLC	3,056,428	$22,434	12/31/2023
ADTN	3,056,428	$22,434	12/31/2023
State Street Corp	2,958,814	$21,718	12/31/2023
ADTN	2,958,814	$21,718	12/31/2023
DNB Asset Management AS	3,472,039	$18,888	03/31/2024
ADTN	3,472,039	$18,888	03/31/2024
Fuller & Thaler Asset Management Inc.	2,023,828	$14,855	12/31/2023
ADTN	2,023,828	$14,855	12/31/2023
Geode Capital Management LLC	1,683,767	$12,360	12/31/2023
ADTN	1,683,767	$12,360	12/31/2023
Needham Investment Management LLC	1,415,000	$10,386	12/31/2023
ADTN	1,415,000	$10,386	12/31/2023
First Eagle Investment Management LLC	1,270,307	$9,324	12/31/2023
ADTN	1,270,307	$9,324	12/31/2023
Morgan Stanley	1,208,798	$8,873	12/31/2023
ADTN	1,208,798	$8,873	12/31/2023
Federated Hermes Inc.	1,139,408	$8,363	12/31/2023
ADTN	1,139,408	$8,363	12/31/2023
Ameriprise Financial Inc.	1,113,409	$8,172	12/31/2023
ADTN	1,113,409	$8,172	12/31/2023
Janus Henderson Group PLC	1,046,251	$7,887	12/31/2023
ADTN	1,046,251	$7,887	12/31/2023
Charles Schwab Investment Management Inc.	1,020,021	$7,487	12/31/2023
ADTN	1,020,021	$7,487	12/31/2023
Jacobs Levy Equity Management Inc.	947,200	$6,952	12/31/2023
ADTN	947,200	$6,952	12/31/2023
Invesco Ltd.	937,774	$6,883	12/31/2023
ADTN	937,774	$6,883	12/31/2023
Paradigm Capital Management Inc. NY	933,100	$6,849	12/31/2023
ADTN	933,100	$6,849	12/31/2023
Bank of New York Mellon Corp	1,244,278	$6,769	03/31/2024
ADTN	1,244,278	$6,769	03/31/2024
Northern Trust Corp	785,305	$5,764	12/31/2023
ADTN	785,305	$5,764	12/31/2023
Citadel Advisors LLC		$3,792	12/31/2023
ADTN	500,775	$3,676	12/31/2023
Call	23,600	$173	12/31/2023
Put	7,700	$57	12/31/2023
Renaissance Technologies LLC	485,373	$3,563	12/31/2023
ADTN	485,373	$3,563	12/31/2023
JPMorgan Chase & Co.	473,688	$3,477	12/31/2023
ADTN	473,688	$3,477	12/31/2023
Nuveen Asset Management LLC	437,787	$3,213	12/31/2023
ADTN	437,787	$3,213	12/31/2023
Kovack Advisors Inc.	561,350	$3,054	03/31/2024
ADTN	561,350	$3,054	03/31/2024
Cinctive Capital Management LP	405,000	$2,973	12/31/2023
ADTN	405,000	$2,973	12/31/2023
Herald Investment Management Ltd	400,000	$2,936	12/31/2023
ADTN	400,000	$2,936	12/31/2023
Keeley Teton Advisors LLC	380,513	$2,793	12/31/2023
ADTN	380,513	$2,793	12/31/2023
First Trust Advisors LP	312,686	$2,295	12/31/2023
ADTN	312,686	$2,295	12/31/2023
Amundi	308,147	$2,249	12/31/2023
ADTN	308,147	$2,249	12/31/2023
B. Riley Asset Management LLC	260,958	$2,051	12/31/2023
ADTN	260,958	$2,051	12/31/2023
Principal Financial Group Inc.	368,665	$2,006	03/31/2024
ADTN	368,665	$2,006	03/31/2024
Goldman Sachs Group Inc.	259,176	$1,902	12/31/2023
ADTN	259,176	$1,902	12/31/2023
Rhumbline Advisers	238,665	$1,752	12/31/2023
ADTN	238,665	$1,752	12/31/2023
Bank of America Corp DE	237,659	$1,744	12/31/2023
ADTN	237,659	$1,744	12/31/2023
Legal & General Group Plc	209,568	$1,538	12/31/2023
ADTN	209,568	$1,538	12/31/2023
D. E. Shaw & Co. Inc.	192,311	$1,412	12/31/2023
ADTN	192,311	$1,412	12/31/2023
Barclays PLC	179,243	$1,315	12/31/2023
ADTN	179,243	$1,315	12/31/2023
Russell Investments Group Ltd.	175,097	$1,285	12/31/2023
ADTN	175,097	$1,285	12/31/2023
Balyasny Asset Management LLC	174,306	$1,279	12/31/2023
ADTN	174,306	$1,279	12/31/2023
Skandinaviska Enskilda Banken AB publ	167,890	$1,232	12/31/2023
ADTN	167,890	$1,232	12/31/2023
Boothbay Fund Management LLC	161,355	$1,184	12/31/2023
ADTN	161,355	$1,184	12/31/2023
HRT Financial LP	161,285	$1,183	12/31/2023
ADTN	161,285	$1,183	12/31/2023
Tudor Investment Corp Et Al	155,103	$1,138	12/31/2023
ADTN	155,103	$1,138	12/31/2023
Swiss National Bank	147,278	$1,081	12/31/2023
ADTN	147,278	$1,081	12/31/2023
Public Sector Pension Investment Board	146,982	$1,079	12/31/2023
ADTN	146,982	$1,079	12/31/2023
Tieton Capital Management LLC	141,749	$1,040	12/31/2023
ADTN	141,749	$1,040	12/31/2023
Jane Street Group LLC	135,852	$997	12/31/2023
ADTN	135,852	$997	12/31/2023
Credit Suisse AG	126,891	$931	12/31/2023
ADTN	126,891	$931	12/31/2023
Susquehanna International Group LLP		$921	12/31/2023
ADTN	185,009	$1,358	12/31/2023
Put	59,600	$437	12/31/2023