MF
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Magnetar Financial’s Adtran ADTN Stock Holding History

Magnetar Financial’s Portfolio ADTN Stock Details ADTN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$352K Buy
+25,297
New +$395K ﹤0.01% 721
2025
Q3 		– Sell
-26,134
Closed -$234K – 863
2025
Q2 		$234K Buy
+26,134
New +$208K ﹤0.01% 761
2025
Q1 		– Sell
-16,846
Closed -$140K – 722
2024
Q4 		$140K Buy
+16,846
New +$124K ﹤0.01% 571
2017
Q4 		– Sell
-10,729
Closed -$257K – 677
2017
Q3 		$257K Buy
+10,729
New +$237K ﹤0.01% 553
2017
Q2 		– Sell
-21,727
Closed -$451K – 773
2017
Q1 		$451K Buy
+21,727
New +$472K 0.01% 493
2016
Q4 		– Sell
-20,927
Closed -$401K – 20
2016
Q3 		$401K Sell
20,927
-2,053
-9% -$37.8K 0.01% 412
2016
Q2 		$429K Buy
+22,980
New +$438K 0.01% 250

Other funds holding ADTN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
RA
Royce & Associates New York $12.4B AUM 64.17% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
DnB Asset Management
DnB Asset Management Oslo, Norway $35.7B AUM 27.58% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Magnetar Financial's ADTN Position: Q2 2026 in Review

Magnetar Financial opened a new position in Adtran (ADTN) in Q2 2026: 25,297 shares worth $352K. The stake represents ﹤0.01% of the portfolio and ranks #721 among its holdings. This is a return to the name: Magnetar Financial previously reported a position in ADTN as recently as Q2 2025.

Magnetar Financial first reported a position in ADTN in Q2 2016 and has held it in 7 quarters since. The position peaked at $451K in Q1 2017. 250 funds tracked by Wall St. Rank hold ADTN as of Q2 2026.

  • Magnetar Financial held 25,297 shares of Adtran worth $352K as of Q2 2026.
  • Adtran was a new Magnetar Financial position in Q2 2026.
  • Adtran made up ﹤0.01% of Magnetar Financial's portfolio in Q2 2026, its #721 holding.
  • Magnetar Financial first reported a position in Adtran in Q2 2016 and has held it in 7 quarters since.
  • Magnetar Financial's Adtran position peaked at $451K in Q1 2017.
  • 250 funds tracked by Wall St. Rank held Adtran as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.