XTX Topco’s Milestone Pharmaceuticals MIST Stock Holding History

XTX Topco’s Portfolio MIST Stock Details MIST Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$144K	Sell	120,602 -51,358	-30%	-$89.9K	﹤0.01%	2978
2025 Q4	$347K	Sell	171,960 -15,341	-8%	-$33K	0.01%	1942
2025 Q3	$375K	Buy	187,301 +26,338	+16%	+$46.3K	0.02%	1319
2025 Q2	$312K	Buy	160,963 +108,959	+210%	+$145K	0.01%	1401
2025 Q1	$41.6K	Buy	52,004 +17,950	+53%	+$35.7K	﹤0.01%	2022
2024 Q4	$80.4K	Buy	+34,054	New	+$58.5K	0.01%	1812
2024 Q2	–	Sell	-13,403	Closed	-$24K	–	2236
2024 Q1	$24K	Buy	+13,403	New	+$21.8K	﹤0.01%	1590
2023 Q2	–	Sell	-12,636	Closed	-$49.8K	–	1658
2023 Q1	$49.8K	Sell	12,636 -56,820	-82%	-$208K	0.01%	1168
2022 Q4	$275K	Buy	+69,456	New	+$366K	0.06%	643

Other funds holding MIST

RTW Investments New York $10B AUM 135.35% 1-Year Est. Return

PBM

Propel Bio Management Los Angeles, California $159M AUM 60.94% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

SAM

Simplify Asset Management Las Vegas, Nevada $7.19B AUM 6.88% 1-Year Est. Return

Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return

Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return

LPC

Lion Point Capital New York $16.7M AUM 119.35% 1-Year Est. Return

XTX Topco's MIST Position: Q1 2026 in Review

XTX Topco reduced its Milestone Pharmaceuticals (MIST) stake by 30% in Q1 2026, selling an estimated $89.9K and leaving 120,602 shares worth $144K. The position accounts for ﹤0.01% of the portfolio, ranked #2978.

XTX Topco first reported a position in MIST in Q4 2022 and has held it in 9 quarters since. The position peaked at $375K in Q3 2025. 86 funds tracked by Wall St. Rank hold MIST as of Q1 2026.

XTX Topco held 120,602 shares of Milestone Pharmaceuticals worth $144K as of Q1 2026.
XTX Topco sold 51,358 Milestone Pharmaceuticals shares in Q1 2026, an estimated $89.9K.
Milestone Pharmaceuticals made up ﹤0.01% of XTX Topco's portfolio in Q1 2026, its #2978 holding.
XTX Topco first reported a position in Milestone Pharmaceuticals in Q4 2022 and has held it in 9 quarters since.
XTX Topco's Milestone Pharmaceuticals position peaked at $375K in Q3 2025.
86 funds tracked by Wall St. Rank held Milestone Pharmaceuticals as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.