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213 hedge funds and large institutions have $612M invested in Adtran in 2025 Q4 according to their latest regulatory filings, with 26 funds opening new positions, 71 increasing their positions, 82 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed

488% more call options, than puts

Call options by funds: $1.99M | Put options by funds: $338K

3.41% more ownership

Funds ownership: 84.4%87.81% (+3.4%)

4% less funds holding

Funds holding: 221213 (-8)

7% less capital invested

Capital invested by funds: $659M → $612M (-$47.2M)

13% less repeat investments, than reductions

Existing positions increased: 71 | Existing positions reduced: 82

16% less first-time investments, than exits

New positions opened: 26 | Existing positions closed: 31

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

Holders
213
Holders Change
-8
Holders Change %
-3.62%
% of All Funds
2.59%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.02%
New
26
Increased
71
Reduced
82
Closed
31
Calls
$1.99M
Puts
$338K
Net Calls
+$1.65M
Net Calls Change
-$2.02M
Name Holding Trade Value Shares
Change
Change in
Stake
State of Wisconsin Investment Board
51
State of Wisconsin Investment Board
Wisconsin
$2.35M +$165K +19,031 +8%
Renaissance Technologies
52
Renaissance Technologies
New York
$2.19M -$172K -19,794 -7%
Bank of New York Mellon
53
Bank of New York Mellon
New York
$2.16M +$142K +16,332 +7%
Invesco
54
Invesco
Georgia
$2.14M -$120K -13,855 -5%
AQR Capital Management
55
AQR Capital Management
Connecticut
$2.06M +$525K +60,506 +34%
Raymond James Financial
56
Raymond James Financial
Florida
$2.02M -$64.2K -7,395 -3%
American Century Companies
57
American Century Companies
Missouri
$1.89M -$174K -20,066 -8%
ECM
58
ExodusPoint Capital Management
New York
$1.84M +$968K +111,486 +111%
Ameriprise
59
Ameriprise
Minnesota
$1.75M -$263K -30,347 -13%
HIM
60
Herald Investment Management
United Kingdom
$1.74M
Fidelity Investments
61
Fidelity Investments
Massachusetts
$1.72M +$1.56M +179,999 +1,007%
UBS AM
62
UBS AM
Illinois
$1.63M +$17.9K +2,068 +1%
N
63
Nuveen
North Carolina
$1.57M -$40.5K -4,669 -3%
Man Group
64
Man Group
United Kingdom
$1.52M -$2.22M -255,417 -59%
UBS Group
65
UBS Group
Switzerland
$1.46M -$1.29M -148,556 -47%
GCP
66
GSA Capital Partners
United Kingdom
$1.37M +$772K +88,962 +130%
EGM
67
Engineers Gate Manager
New York
$1.33M +$1.04M +119,498 +352%
NIM
68
Niles Investment Management
Florida
$1.3M +$1.3M +149,494 New
HSA
69
Hussman Strategic Advisors
Maryland
$1.28M
Voloridge Investment Management
70
Voloridge Investment Management
Florida
$1.27M +$1.11M +127,530 +685%
Swiss National Bank
71
Swiss National Bank
Switzerland
$1.21M
DSCM
72
Divisadero Street Capital Management
Florida
$1.11M +$1.11M +127,489 New
Victory Capital Management
73
Victory Capital Management
Texas
$1.09M +$57.3K +6,600 +6%
BHCM
74
Brevan Howard Capital Management
Jersey
$1.05M +$642K +73,977 +157%
Skandinaviska Enskilda Banken (SEB)
75
Skandinaviska Enskilda Banken (SEB)
Sweden
$1.02M