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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
Susquehanna International Group
76
Susquehanna International Group
Pennsylvania
$1.02M -$2.84M -327,159 -74%
Legal & General Group
77
Legal & General Group
United Kingdom
$983K -$2.13K -245 -0.2%
T. Rowe Price Associates
78
T. Rowe Price Associates
Maryland
$945K +$28.6K +3,299 +3%
GC
79
Globeflex Capital
California
$928K
Balyasny Asset Management
80
Balyasny Asset Management
Illinois
$891K -$1.52M -175,450 -63%
BFM
81
Boothbay Fund Management
New York
$885K -$67.2K -7,738 -7%
Citadel Advisors
82
Citadel Advisors
Florida
$855K -$9.72M -1,120,473 -92%
Qube Research & Technologies (QRT)
83
Qube Research & Technologies (QRT)
United Kingdom
$853K -$1.62M -186,247 -65%
Lido Advisors
84
Lido Advisors
California
$851K
IQI
85
Integrated Quantitative Investments
Washington
$849K +$568K +65,415 +202%
Verition Fund Management
86
Verition Fund Management
Connecticut
$833K -$87.8K -10,116 -10%
RhumbLine Advisers
87
RhumbLine Advisers
Massachusetts
$832K -$156K -18,007 -16%
NIMC
88
Nierenberg Investment Management Company
Washington
$809K -$2.17M -250,000 -73%
Acadian Asset Management
89
Acadian Asset Management
Massachusetts
$771K +$773K +89,054 New
SAG
90
Susquehanna Advisors Group
Pennsylvania
$717K
Franklin Resources
91
Franklin Resources
California
$693K +$11K +1,263 +2%
HSBC Holdings
92
HSBC Holdings
United Kingdom
$686K +$156K +18,004 +30%
JF
93
Jump Financial
Illinois
$683K -$988K -113,845 -59%
N
94
Numerai
California
$648K +$524K +60,431 +429%
California State Teachers Retirement System (CalSTRS)
95
California State Teachers Retirement System (CalSTRS)
California
$631K +$122K +14,113 +24%
Two Sigma Investments
96
Two Sigma Investments
New York
$613K -$314K -36,159 -34%
KHC
97
Koesten Hirschmann & Crabtree
Kansas
$612K
Massachusetts Financial Services
98
Massachusetts Financial Services
Massachusetts
$603K -$19.9K -2,298 -3%
GCM
99
Graham Capital Management
Connecticut
$588K +$97.1K +11,185 +20%
XT
100
XTX Topco
Cayman Islands
$580K +$61K +7,033 +12%