XT
OSTX

XTX Topco’s OS Therapies Inc OSTX Stock Holding History

XTX Topco’s Portfolio OSTX Stock Details OSTX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$44.6K Buy
+31,622
New +$44.9K ﹤0.01% 3350
2025
Q3 		– Sell
-33,489
Closed -$63K – 3413
2025
Q2 		$63K Buy
+33,489
New +$56.4K ﹤0.01% 1975

Other funds holding OSTX

VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
CM
CM Management Gulf Breeze, Florida $120M AUM 37.12% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
HFS
Howard Financial Services Dallas, Texas $1B AUM 20.02% 1-Year Est. Return
VFT
Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

XTX Topco's OSTX Position: Q1 2026 in Review

XTX Topco opened a new position in OS Therapies Inc (OSTX) in Q1 2026: 31,622 shares worth $44.6K. The stake represents ﹤0.01% of the portfolio and ranks #3350 among its holdings. This is a return to the name: XTX Topco previously reported a position in OSTX as recently as Q2 2025.

XTX Topco first reported a position in OSTX in Q2 2025 and has held it in 2 quarters since. The position peaked at $63K in Q2 2025. 29 funds tracked by Wall St. Rank hold OSTX as of Q1 2026.

  • XTX Topco held 31,622 shares of OS Therapies Inc worth $44.6K as of Q1 2026.
  • OS Therapies Inc was a new XTX Topco position in Q1 2026.
  • OS Therapies Inc made up ﹤0.01% of XTX Topco's portfolio in Q1 2026, its #3350 holding.
  • XTX Topco first reported a position in OS Therapies Inc in Q2 2025 and has held it in 2 quarters since.
  • XTX Topco's OS Therapies Inc position peaked at $63K in Q2 2025.
  • 29 funds tracked by Wall St. Rank held OS Therapies Inc as of Q1 2026.

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