SM
TLN

Stephen Mandel’s Talen Energy Corp TLN Stock Holding History

Stephen Mandel’s Portfolio TLN Stock Details TLN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-1,817,947
Closed -$580M – 49
2026
Q1 		$580M Buy
1,817,947
+525,431
+41% +$185M 4.63% 6
2025
Q4 		$484M Buy
1,292,516
+100,000
+8% +$38.9M 3.56% 16
2025
Q3 		$507M Buy
1,192,516
+103,136
+9% +$37.3M 3.69% 14
2025
Q2 		$317M Hold
1,089,380
– – 2.25% 22
2025
Q1 		$218M Hold
1,089,380
– – 1.88% 21
2024
Q4 		$219M Buy
1,089,380
+233,165
+27% +$45.5M 1.63% 25
2024
Q3 		$153M Buy
+856,215
New +$121M 1.14% 25

Other funds holding TLN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
MP
MFN Partners Boston, Massachusetts $4.83B AUM 65.74% 1-Year Est. Return
EC
ECP ControlCo Summit, New Jersey $4.67B AUM 13.65% 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
FAM
Fred Alger Management New York $30B AUM 76.99% 1-Year Est. Return
WHRC
W.H. Reaves & Co Jersey City, New Jersey $6.59B AUM 31.9% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
SHCM
Sachem Head Capital Management New York $4.82B AUM 73.38% 1-Year Est. Return

Stephen Mandel's TLN Position: Q2 2026 in Review

Stephen Mandel sold out of Talen Energy Corp (TLN) in Q2 2026, closing a stake of 1,817,947 shares — an estimated $580M sold.

Stephen Mandel first reported a position in TLN in Q3 2024 and held it in 7 quarters. The position peaked at $580M in Q1 2026. 642 funds tracked by Wall St. Rank hold TLN as of Q2 2026.

  • Stephen Mandel reported no remaining Talen Energy Corp position as of Q2 2026 after selling out during the quarter.
  • Stephen Mandel sold 1,817,947 Talen Energy Corp shares in Q2 2026, an estimated $580M.
  • Stephen Mandel first reported a position in Talen Energy Corp in Q3 2024 and held it in 7 quarters.
  • Stephen Mandel's Talen Energy Corp position peaked at $580M in Q1 2026.
  • 642 funds tracked by Wall St. Rank held Talen Energy Corp as of Q2 2026.

Based on Lone Pine Capital's 13F filing for Q2 2026, filed 14 Aug 2026.