ADTN
ADTRAN HOLDINGS (ADTN)
NASDAQ
$14.78-$0.80 (-5.17%)
Price as of Jun 23, 2026 6:22 PM EDT
  • $1.3B
    Market Cap
  • 84.16%
    1-Year Change
  • Communication Equipment
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
VANGUARD GROUP INC
10.11%
8.2M
-194,809 (-2.38%)
Dec 31, 2025
BLACKROCK, INC.
9.68%
7.8M
-285,005 (-3.64%)
Mar 31, 2026
BLACKROCK FUNDING, INC. /DE
8.48%
6.9M
+9,029 (+0.13%)
Dec 31, 2024
BLACKROCK INC.
8.15%
6.6M
-5.9M (-89.45%)
Jun 30, 2024
N/A
5.89%
4.8M
+4.8M (+100.00%)
Mar 31, 2026
BLACKROCK FUND ADVISORS
4.78%
3.9M
+421,384 (+10.88%)
Dec 31, 2016
ROYCE & ASSOCIATES LP
3.86%
3.1M
+530,390 (+16.96%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions630.5M (65.26%)
  • Mutual Funds327.5M (33.89%)
  • Insiders8.2M (0.85%)
  • Other0 (0.00%)

Insider Transactions

  • 0.85% (8.2M)
    Current InsiderOwnership (%, shares)
  • 1
    Number of InsiderBuying (last 12 months)
  • $6.9M
    Amount of InsiderBuying (last 12 months)
  • 1
    Number of InsiderSelling (last 12 months)
  • $6,143.13
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
STANTON THOMAS R
Chairman & CEO
Award
Apr 01, 2026
$0.00
170,723
$0.00
1.1M
Santo Timothy P
SVP of Finance; CFO
Award
Apr 01, 2026
$0.00
28,252
$0.00
53,345
Wilson James Denson Jr
Chief Revenue Officer
Award
Apr 01, 2026
$0.00
24,908
$0.00
152,610
Santo Timothy P
SVP of Finance; CFO
In Kind
Mar 19, 2026
$17,861.90
1,501
$11.90
25,093
Jacqueline Hourigan Rice
Sell
Mar 04, 2026
$148,237.74
14,406
$10.29
13,809
Wilson James Denson Jr
Chief Revenue Officer
Award
Jan 26, 2026
$0.00
3,777
$0.00
129,011
STANTON THOMAS R
Chairman & CEO
Award
Jan 26, 2026
$0.00
27,973
$0.00
967,878
Wilson James Denson Jr
Chief Revenue Officer
In Kind
Jan 26, 2026
$9,710.54
998
$9.73
125,234
STANTON THOMAS R
Chairman & CEO
In Kind
Jan 26, 2026
$114,640.68
12,407
$9.24
955,471
Wilson James Denson Jr
Chief Revenue Officer
In Kind
Jan 26, 2026
$10,043.88
1,087
$9.24
127,924
STANTON THOMAS R
Chairman & CEO
In Kind
Jan 26, 2026
$140,199.57
14,409
$9.73
939,905
Wilson James Denson Jr
Chief Revenue Officer
In Kind
Jan 24, 2026
$11,717.85
1,227
$9.55
126,232
STANTON THOMAS R
Chairman & CEO
In Kind
Jan 24, 2026
$167,459.25
17,535
$9.55
954,314
Wilson James Denson Jr
Chief Revenue Officer
In Kind
Jan 20, 2026
$7,068.60
765
$9.24
127,459
STANTON THOMAS R
Chairman & CEO
In Kind
Jan 20, 2026
$94,682.28
10,247
$9.24
971,849
Walker Kathryn A
Award
Dec 31, 2025
$0.00
13,809
$0.00
98,663
Nair Balan
Award
Dec 31, 2025
$0.00
13,809
$0.00
125,373
Theodosopoulos Nikos
Award
Dec 31, 2025
$0.00
13,809
$0.00
65,963
HUSS H FENWICK
Award
Dec 31, 2025
$0.00
13,809
$0.00
107,600
McCray Gregory James
Award
Dec 31, 2025
$0.00
13,809
$0.00
72,893
STANTON THOMAS R
Chairman & CEO
Buy
Nov 24, 2025
$300,002.24
40,928
$7.33
982,096
STANTON THOMAS R
Chairman & CEO
In Kind
Nov 17, 2025
$24,592.15
3,355
$7.33
941,168
Wilson James Denson Jr
Chief Revenue Officer
In Kind
Nov 17, 2025
$3,430.44
468
$7.33
128,224
STANTON THOMAS R
Chairman & CEO
In Kind
Apr 13, 2025
$41,208.96
5,408
$7.62
950,186
Santo Timothy P
SVP of Finance; CFO
Award
Mar 19, 2025
$0.00
20,444
$0.00
20,444
STANTON THOMAS R
Chairman & CEO
In Kind
Jan 26, 2025
$98,316.16
9,536
$10.31
955,594
Dopfer Ulrich
Chief Financial Officer
In Kind
Jan 26, 2025
$12,031.77
1,167
$10.31
48,195
Wilson James Denson Jr
Chief Revenue Officer
In Kind
Jan 26, 2025
$8,711.95
845
$10.31
128,692
Dopfer Ulrich
Chief Financial Officer
Award
Jan 24, 2025
$0.00
16,291
$0.00
37,591
Glingener Christoph
Chief Technology Officer
Award
Jan 24, 2025
$0.00
13,907
$0.00
32,775