226 hedge funds and large institutions have $987M invested in Adtran in 2026 Q1 according to their latest regulatory filings, with 49 funds opening new positions, 86 increasing their positions, 64 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more capital invested

Capital invested by funds: $ → $

more first-time investments, than exits

New positions opened: | Existing positions closed:

34% more repeat investments, than reductions

Existing positions increased: 86 | Existing positions reduced: 64

9.53% more ownership

Funds ownership: 87.81%97.35% (+9.5%)

6% more funds holding

Funds holding: 213226 (+13)

Holders
226
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
5
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.78M
Puts
$943K
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Creative Planning
101
Creative Planning
Kansas
$1.09M
KHC
102
Koesten Hirschmann & Crabtree
Kansas
$1.07M
SAG
103
Susquehanna Advisors Group
Pennsylvania
$1.03M
PCM
104
Potomac Capital Management
New York
$971K
Polen Capital Management
105
Polen Capital Management
Florida
$952K
California State Teachers Retirement System (CalSTRS)
106
California State Teachers Retirement System (CalSTRS)
California
$906K
TI
107
Tidal Investments
Wisconsin
$905K
Massachusetts Financial Services
108
Massachusetts Financial Services
Massachusetts
$851K
SSA
109
Schonfeld Strategic Advisors
New York
$832K
SPS
110
Susquehanna Portfolio Strategies
Pennsylvania
$826K
VGA
111
Vanguard Global Advisers
Pennsylvania
$793K
N
112
Numerai
California
$772K
GCP
113
GSA Capital Partners
United Kingdom
$740K
QT
114
Quantbot Technologies
New York
$715K
VOYA Investment Management
115
VOYA Investment Management
Georgia
$713K
Man Group
116
Man Group
United Kingdom
$681K
PP
117
PDT Partners
New York
$675K
EC
118
EntryPoint Capital
New York
$672K
Zurich Cantonal Bank
119
Zurich Cantonal Bank
Switzerland
$664K
QCM
120
Quantinno Capital Management
New York
$660K
YIH
121
Y-Intercept (HK)
Hong Kong
$655K
Franklin Resources
122
Franklin Resources
California
$655K
WVP
123
Worth Venture Partners
New Jersey
$615K
VAM
124
Vanguard Asset Management
$586K
NC
125
nVerses Capital
Florida
$564K