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Adtran
ADTN

Overview Fund Activity

204 hedge funds and large institutions have $510M invested in Adtran in 2025 Q1 according to their latest regulatory filings, with 65 funds opening new positions, 60 increasing their positions, 59 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
204
Holders Change
+45
Holders Change %
+28.3%
% of All Funds
2.77%
Holding in Top 10
4
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.05%
New
65
Increased
60
Reduced
59
Closed
18
Calls
$3.06M
Puts
$781K
Net Calls
+$2.28M
Net Calls Change
+$53K

Top Buyers

1
RA
Royce & Associates
New York
+$8.01M
2
Invesco
Invesco
Georgia
+$7.89M
3
BlackRock
BlackRock
New York
+$6.37M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$4.37M
5
Stifel Financial
Stifel Financial
Missouri
+$4.33M

Top Sellers

1
PCMI
Paradigm Capital Management Inc
New York
-$20.4M
2
William Blair Investment Management
William Blair Investment Management
Illinois
-$13.2M
3
SSA
Schonfeld Strategic Advisors
New York
-$12.8M
4
DnB Asset Management
DnB Asset Management
Norway
-$12.8M
5
DCM
Divisar Capital Management
California
-$12M
Name Holding Trade Value Shares
Change 		Shares
Change %
LFG
201
Larson Financial Group
Missouri
$314 – – –
SS
202
SBI Securities
Japan
$105 – – –
HNB
203
Huntington National Bank
Ohio
$30 – – –
IA
204
IFP Advisors
Florida
$17 – – –
CM
205
Crestline Management
Texas
– -$2M -239,594 Closed
SC
206
Shellback Capital
Massachusetts
– -$1.65M -198,440 Closed
SFI
207
Siemens Fonds Invest
Germany
– -$993K -119,654 Closed
Balyasny Asset Management
208
Balyasny Asset Management
Illinois
– -$498K -59,824 Closed
TSW
209
Thompson Siegel & Walmsley
Virginia
– -$296K -35,559 Closed
Simplex Trading
210
Simplex Trading
Illinois
– -$250K -30,121 Closed
SPA
211
Sherbrooke Park Advisers
New York
– -$242K -29,087 Closed
CFM
212
Catalyst Funds Management
Australia
– -$190K -22,800 Closed
I
213
InceptionR
California
– -$162K -19,388 Closed
YIH
214
Y-Intercept (HK)
Hong Kong
– -$144K -17,234 Closed
MF
215
Magnetar Financial
Illinois
– -$140K -16,846 Closed
SP
216
SIH Partners
Delaware
– -$107K -12,846 Closed
HCA
217
Harbor Capital Advisors
Illinois
– -$100K -11,967 Closed
PAS
218
Park Avenue Securities
New York
– -$96K -11,502 Closed
Group One Trading
219
Group One Trading
Illinois
– -$62.7K -7,523 Closed
TRSOTSOK
220
Teachers Retirement System of the State of Kentucky
Kentucky
– -$21K -2,510 Closed
RS
221
R Squared
Hong Kong
– -$18.2K -2,180 Closed
PMAM
222
Picton Mahoney Asset Management
Ontario, Canada
– -$9K -1,136 Closed
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