Jeff Yass’s Summit Therapeutics SMMT Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$16.2M Sell
1,109,200
-130,100
-10% -$2.31M ﹤0.01% 2698
2026
Q1
$23.5M Sell
1,239,300
-563,400
-31% -$9.11M ﹤0.01% 2026
2025
Q4
$31.5M Buy
1,802,700
+411,000
+30% +$7.73M ﹤0.01% 1771
2025
Q3
$28.8M Buy
1,391,700
+345,400
+33% +$8.38M ﹤0.01% 1838
2025
Q2
$22.3M Buy
1,046,300
+296,200
+39% +$6.75M ﹤0.01% 1898
2025
Q1
$14.5M Buy
750,100
+443,300
+144% +$8.89M ﹤0.01% 2080
2024
Q4
$5.48M Sell
306,800
-304,300
-50% -$5.9M ﹤0.01% 3455
2024
Q3
$13.4M Buy
611,100
+475,000
+349% +$6.64M ﹤0.01% 2249
2024
Q2
$1.06M Buy
136,100
+114,800
+539% +$620K ﹤0.01% 6432
2024
Q1
$88.2K Buy
+21,300
New +$84.7K ﹤0.01% 11287
2023
Q4
Sell
-13,300
Closed -$24.9K 13230
2023
Q3
$24.9K Sell
13,300
-1,000
-7% -$1.91K ﹤0.01% 11542
2023
Q2
$35.9K Sell
14,300
-210,100
-94% -$383K ﹤0.01% 11460
2023
Q1
$393K Sell
224,400
-457,400
-67% -$1.25M ﹤0.01% 9138
2022
Q4
$2.9M Buy
+681,800
New +$1.24M ﹤0.01% 4072

Other funds holding SMMT

Jeff Yass's SMMT Position: Q2 2026 in Review

Jeff Yass reduced its Summit Therapeutics (SMMT) stake by 14% in Q2 2026, selling an estimated $1.46M and leaving 521,339 shares worth $7.6M. The position accounts for ﹤0.01% of the portfolio, ranked #3847.

Jeff Yass first reported a position in SMMT in Q3 2017 and has held it in 23 quarters since. The position peaked at $11.5M in Q1 2026. 242 funds tracked by Wall St. Rank hold SMMT as of Q2 2026.

  • Jeff Yass held 521,339 shares of Summit Therapeutics worth $7.6M as of Q2 2026.
  • Jeff Yass sold 82,594 Summit Therapeutics shares in Q2 2026, an estimated $1.46M.
  • Summit Therapeutics made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #3847 holding.
  • Jeff Yass first reported a position in Summit Therapeutics in Q3 2017 and has held it in 23 quarters since.
  • Jeff Yass's Summit Therapeutics position peaked at $11.5M in Q1 2026.
  • 242 funds tracked by Wall St. Rank held Summit Therapeutics as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.