Jane Street’s Milestone Pharmaceuticals MIST Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
Sell
-45,000
Closed -$90.9K 12443
2025
Q4
$90.9K Buy
45,000
+32,300
+254% +$69.6K ﹤0.01% 10232
2025
Q3
$25.4K Sell
12,700
-75,400
-86% -$133K ﹤0.01% 10490
2025
Q2
$171K Buy
+88,100
New +$117K ﹤0.01% 8658

Other funds holding MIST

Jane Street's MIST Position: Q1 2026 in Review

Jane Street reduced its Milestone Pharmaceuticals (MIST) stake by 85% in Q1 2026, selling an estimated $1.63M and leaving 159,669 shares worth $190K. The position accounts for ﹤0.01% of the portfolio, ranked #10202.

Jane Street first reported a position in MIST in Q2 2025 and has held it in 4 quarters since. The position peaked at $2.21M in Q4 2025. 86 funds tracked by Wall St. Rank hold MIST as of Q1 2026.

  • Jane Street held 159,669 shares of Milestone Pharmaceuticals worth $190K as of Q1 2026.
  • Jane Street sold 933,561 Milestone Pharmaceuticals shares in Q1 2026, an estimated $1.63M.
  • Milestone Pharmaceuticals made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10202 holding.
  • Jane Street first reported a position in Milestone Pharmaceuticals in Q2 2025 and has held it in 4 quarters since.
  • Jane Street's Milestone Pharmaceuticals position peaked at $2.21M in Q4 2025.
  • 86 funds tracked by Wall St. Rank held Milestone Pharmaceuticals as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.