ADTRAN Ownership | Who Owns ADTRAN?


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ADTRAN Ownership Summary


ADTRAN is owned by 97.75% institutional investors, 2.23% insiders, and 0.02% retail investors. Vanguard group is the largest institutional shareholder, holding 10.27% of ADTN shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.12% of its assets in ADTRAN shares.

ADTN Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockADTRAN97.75%2.23%0.02%
SectorTechnology Stocks 36.93%14.89%48.18%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Vanguard group8.19M10.27%$71.16M
Blackrock funding, inc. /de7.84M9.82%$98.63M
Royce & associates lp3.13M3.92%$39.34M
Dnb asset management as3.12M3.91%$39.30M
State street2.35M2.94%$29.57M
William blair investment management1.99M2.49%$25.03M
Millennium management1.90M2.37%$23.86M
Morgan stanley1.83M2.29%$23.06M
Geode capital management1.82M2.28%$22.89M
Divisar capital management1.77M2.22%$22.26M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Divisar capital management1.77M5.67%$22.26M
Tieton capital management1.04M4.36%$13.02M
1492 capital management625.02K2.99%$7.86M
Shannon river fund management1.22M2.93%$15.35M
Westerly capital management800.00K2.74%$10.06M
Kerrisdale advisers552.01K2.64%$6.94M
Worth venture partners48.91K1.95%$615.26K
Lisanti capital growth336.96K1.07%$4.24M
White pine capital294.37K1.04%$3.70M
Manatuck hill partners250.00K0.85%$3.15M

Top Buyers

HolderShares% AssetsChange
Shannon river fund management1.22M2.93%1.22M
Boston partners1.18M0.02%1.18M
Jpmorgan chase1.52M0.00%1.08M
Two sigma investments, lp1.12M0.01%1.05M
Marshall wace, llp891.52K0.01%891.52K

Top Sellers

HolderShares% AssetsChange
Divisar capital management1.77M5.67%-1.22M
Ophir asset management pty---1.07M
Sg capital management---847.42K
Millennium management1.90M0.01%-798.39K
Assenagon asset management457.95K0.01%-671.10K

New Positions

HolderShares% AssetsChangeValue
Shannon river fund management1.22M2.93%1.22M$15.35M
Boston partners1.18M0.02%1.18M$14.91M
Heartland advisors750.00K0.48%750.00K$9.44M
Kerrisdale advisers552.01K2.64%552.01K$6.94M
Vanguard fiduciary trust522.53K0.00%522.53K$6.57M

Sold Out

HolderChange
Clearstead advisors-30.00
Stephens consulting-40.00
Ronald blue trust-60.00
Skopos labs-86.00
Physician wealth advisors-123.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 20262285.56%78,081,01710.99%971.25%13232.00%64-18.99%
Dec 31, 202544-80.79%16,645,692-75.34%200.29%16-87.79%15-75.00%
Sep 30, 202565-67.66%15,141,633-74.46%180.34%29-69.15%19-74.32%
Jun 30, 2025200-6.54%59,280,5561.30%741.37%92-28.13%7529.31%
Mar 31, 202521227.71%58,418,403-5.29%731.21%12840.66%569.80%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv2.52M3.12%-
DNB Teknologi A2.33M2.89%-
Vanguard US Total Market Shares ETF2.18M2.72%-
Vanguard Information Technology ETF1.78M2.22%9.82K
iShares Russell 2000 ETF1.76M2.19%14.85K
First Eagle US Small Cap Strategy1.19M1.48%108.80K
First Eagle Small Cap Opportunity I1.14M1.41%-58.26K
Tieton Small Cap Value1.04M1.28%46.79K
State Street® SPDR® S&P® Telecom ETF976.55K1.21%-
Needham Small Cap Growth Retail930.60K1.15%-256.90K

Recent Insider Transactions


DateNameRoleActivityValue
May 20, 2026Wilson James Denson Jr Chief Revenue OfficerSell$137.37K
May 08, 2026Glingener Christoph Chief Technology OfficerSell$334.15K
May 07, 2026Glingener Christoph Chief Technology OfficerSell$1.28M
May 07, 2026Glingener Christoph Chief Technology OfficerSell$607.17K
Mar 04, 2026Jacqueline Hourigan Rice-Sell$148.24K

Insider Transactions Trends


DateBuySell
2026 Q2-4
2025 Q2--
2024 Q3--
2024 Q2--
2024 Q1--

ADTN Ownership FAQ


Who owns the most shares of ADTRAN?

ADTRAN’s largest shareholders are Vanguard group (8.19M shares, 10.27%), Blackrock funding, inc. /de (7.84M shares, 9.82%), and Royce & associates lp (3.13M shares, 3.92%). Together, they hold 24.01% of ADTRAN’s total shares outstanding.

Does Blackrock own ADTRAN?

BlackRock is not among the top 10 institutional shareholders of ADTRAN.

Who is ADTRAN’s biggest shareholder by percentage of total assets invested?

Divisar capital management is ADTRAN’s biggest shareholder by percentage of total assets invested, with 5.67% of its assets in 1.77M ADTRAN shares, valued at 22.26M$.

Who is the top mutual fund holder of ADTRAN shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of ADTRAN shares, with 3.12% of its total shares outstanding invested in 2.52M ADTRAN shares.

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