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
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

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
DCM
Divisar Capital Management San Francisco, California $392M AUM 108.45% 1-Year Est. Return
DnB Asset Management
DnB Asset Management Oslo, Norway $28B AUM 26% 1-Year Est. Return
Focus Partners Wealth
Focus Partners Wealth Boston, Massachusetts $89.9B AUM 20.5% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return
RA
Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Magnetar Financial's ADTN Position: Q3 2025 in Review

Magnetar Financial sold out of Adtran (ADTN) in Q3 2025, closing a stake of 26,134 shares — an estimated $234K sold.

Magnetar Financial first reported a position in ADTN in Q2 2016 and held it in 6 quarters. The position peaked at $451K in Q1 2017. 221 funds tracked by Wall St. Rank hold ADTN as of Q3 2025.

  • Magnetar Financial reported no remaining Adtran position as of Q3 2025 after selling out during the quarter.
  • Magnetar Financial sold 26,134 Adtran shares in Q3 2025, an estimated $234K.
  • Magnetar Financial first reported a position in Adtran in Q2 2016 and held it in 6 quarters.
  • Magnetar Financial's Adtran position peaked at $451K in Q1 2017.
  • 221 funds tracked by Wall St. Rank held Adtran as of Q3 2025.

Based on Magnetar Financial's 13F filing for Q3 2025, filed 13 Nov 2025.