ADTN
ADTRAN HOLDINGS (ADTN)
NASDAQ
$4.68+$0.26 (+6.01%)
Price as of Nov 11, 2026 7:49 PM EST
  • $359.4M
    Market Cap
  • -45.08%
    1-Year Change
  • Communication Equipment
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
VANGUARD GROUP INC
10.05%
8.2M
-194,809 (-2.38%)
Dec 31, 2025
BLACKROCK, INC.
9.62%
7.8M
-4,058 (-0.05%)
Jun 30, 2026
BLACKROCK FUNDING, INC. /DE
8.43%
6.9M
+9,029 (+0.13%)
Dec 31, 2024
BLACKROCK INC.
8.10%
6.6M
-5.9M (-89.45%)
Jun 30, 2024
N/A
6.30%
5.1M
+364,197 (+7.09%)
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
6.30%
5.1M
+364,197 (+7.09%)
Jun 30, 2026
BLACKROCK FUND ADVISORS
4.75%
3.9M
+421,384 (+10.88%)
Dec 31, 2016

Current Ownership Distribution

  • Institutions732.1M (63.42%)
  • Mutual Funds414.0M (35.87%)
  • Insiders8.3M (0.72%)
  • Other0 (0.00%)

Insider Transactions

  • 0.72% (8.3M)
    Current InsiderOwnership (%, shares)
  • 2
    Number of InsiderBuying (last 12 months)
  • $12.4M
    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
Buy
Nov 06, 2026
$600,900.00
150,000
$4.01
1.4M
Wilson James Denson Jr
Chief Revenue Officer
Exempt
Nov 03, 2026
$0.00
17,800
$0.00
0
STANTON THOMAS R
Chairman & CEO
Exempt
Nov 03, 2026
$0.00
225,775
$0.00
0
Wilson James Denson Jr
Chief Revenue Officer
In Kind
Nov 03, 2026
$24,499.30
4,512
$5.43
128,297
STANTON THOMAS R
Chairman & CEO
In Kind
Nov 03, 2026
$496,511.54
91,439
$5.43
1.1M
Wilson James Denson Jr
Chief Revenue Officer
Exempt
Nov 03, 2026
$0.00
17,800
$0.00
146,097
STANTON THOMAS R
Chairman & CEO
Exempt
Nov 03, 2026
$0.00
225,775
$0.00
1.3M
Terlinde Christian
Award
Oct 27, 2026
$0.00
8,721
$0.00
8,721
Glingener Christoph
Chief Technology Officer
Award
Aug 10, 2026
$0.00
27,924
$0.00
83,953
Santo Timothy P
SVP of Finance; CFO
Buy
Aug 06, 2026
$50,000.40
6,579
$7.60
59,924
Glingener Christoph
Chief Technology Officer
Award
Jul 24, 2026
$0.00
9,384
$0.00
56,029
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
STANTON THOMAS R
Chairman & CEO
Award
Apr 01, 2026
$0.00
170,723
$0.00
1.1M
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