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227 hedge funds and large institutions have $987M invested in Adtran in 2026 Q1 according to their latest regulatory filings, with 50 funds opening new positions, 86 increasing their positions, 64 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed

150% more funds holding in top 10

Funds holding in top 10: 25 (+3)

89% more call options, than puts

Call options by funds: $1.78M | Put options by funds: $943K

61% more capital invested

Capital invested by funds: $612M → $987M (+$376M)

61% more first-time investments, than exits

New positions opened: 50 | Existing positions closed: 31

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%)

7% more funds holding

Funds holding: 213227 (+14)

Holders
227
Holders Change
+14
Holders Change %
+6.57%
% of All Funds
2.8%
Holding in Top 10
5
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+150%
% of All Funds
0.06%
New
50
Increased
86
Reduced
64
Closed
31
Calls
$1.78M
Puts
$943K
Net Calls
+$842K
Net Calls Change
-$807K
Name Holding Trade Value Shares
Change
Change in
Stake
Federated Hermes
26
Federated Hermes
Pennsylvania
$11.6M +$569K +56,185 +6%
Marshall Wace
27
Marshall Wace
United Kingdom
$11.2M +$9.04M +891,520 New
Squarepoint
28
Squarepoint
New York
$11.2M +$917K +90,522 +11%
AQR Capital Management
29
AQR Capital Management
Connecticut
$10.6M +$6.15M +607,012 +256%
WCM
30
Westerly Capital Management
California
$10.1M +$1.01M +100,000 +14%
HA
31
Heartland Advisors
Wisconsin
$9.44M +$7.6M +750,000 New
KA
32
Kovack Advisors
Florida
$9.37M -$178K -17,550 -2%
PCMI
33
Paradigm Capital Management Inc
New York
$9.22M -$4.02M -396,709 -35%
TI
34
Trexquant Investment
Connecticut
$8.62M +$3.3M +325,862 +91%
Northern Trust
35
Northern Trust
Illinois
$8.29M +$170K +16,788 +3%
Tudor Investment Corp
36
Tudor Investment Corp
Connecticut
$8.24M -$2.97M -292,565 -31%
1CM
37
1492 Capital Management
Wisconsin
$7.86M +$403K +39,747 +7%
Charles Schwab
38
Charles Schwab
California
$7.85M -$637K -62,828 -9%
Fidelity Investments
39
Fidelity Investments
Massachusetts
$7.74M +$4.23M +417,558 +211%
HF
40
HRT Financial
New York
$7.15M +$223K +21,967 +4%
Point72 Asset Management
41
Point72 Asset Management
Connecticut
$7.1M +$1.45M +143,394 +34%
Connor, Clark & Lunn Investment Management (CC&L)
42
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$7.05M +$1.98M +195,122 +53%
KA
43
Kerrisdale Advisers
Florida
$6.94M +$5.59M +552,010 New
VFT
44
Vanguard Fiduciary Trust
Pennsylvania
$6.57M +$5.3M +522,530 New
Nomura Holdings
45
Nomura Holdings
Japan
$5.84M -$2.2M -217,173 -32%
Jacobs Levy Equity Management
46
Jacobs Levy Equity Management
New Jersey
$5.81M +$4.08M +402,489 +680%
Assenagon Asset Management
47
Assenagon Asset Management
Luxembourg
$5.76M -$6.8M -671,095 -59%
Royal Bank of Canada
48
Royal Bank of Canada
Ontario, Canada
$5.75M -$794K -78,318 -15%
Arrowstreet Capital
49
Arrowstreet Capital
Massachusetts
$5.73M +$1.73M +171,145 +60%
Citadel Advisors
50
Citadel Advisors
Florida
$4.95M +$2.99M +295,339 +300%