JO
XFOR icon

John Overdeck’s X4 Pharmaceuticals XFOR Stock Holding History

John Overdeck’s Portfolio XFOR Stock Details XFOR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$90.7K Buy
19,426
+5,558
+40% +$22.8K ﹤0.01% 4903
2026
Q1 		$57.3K Sell
13,868
-3,378
-20% -$12.7K ﹤0.01% 4441
2025
Q4 		$69K Buy
17,246
+3,378
+24% +$12.3K ﹤0.01% 3895
2025
Q3 		$47.4K Buy
+13,868
New +$35.8K ﹤0.01% 3547
2023
Q3 		– Sell
-15,751
Closed -$917K – 3251
2023
Q2 		$917K Buy
15,751
+15,216
+2,844% +$782K ﹤0.01% 1993
2023
Q1 		$14K Sell
535
-202
-27% -$5.92K ﹤0.01% 2875
2022
Q4 		$21.9K Buy
+737
New +$34.9K ﹤0.01% 2670
2019
Q1 		– Sell
-119
Closed -$50K – 3525
2018
Q4 		$50K Sell
119
-79
-40% -$30.1K ﹤0.01% 2866
2018
Q3 		$58K Buy
+198
New +$84K ﹤0.01% 3097

Other funds holding XFOR

Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.68B AUM 126.09% 1-Year Est. Return
PA
Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return
SVCM
Saturn V Capital Management Austin, Texas $697M AUM 628.57% 1-Year Est. Return
EAM
Empery Asset Management New York $86.5M AUM
DTC
Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
KCM
Kalehua Capital Management Dallas, Texas $174M AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

John Overdeck's XFOR Position: Q2 2026 in Review

John Overdeck increased its X4 Pharmaceuticals (XFOR) stake by 40% in Q2 2026, buying an estimated $22.8K and bringing the position to 19,426 shares worth $90.7K. The position accounts for ﹤0.01% of the portfolio, ranked #4903.

John Overdeck first reported a position in XFOR in Q3 2018 and has held it in 9 quarters since. The position peaked at $917K in Q2 2023. 88 funds tracked by Wall St. Rank hold XFOR as of Q2 2026.

  • John Overdeck held 19,426 shares of X4 Pharmaceuticals worth $90.7K as of Q2 2026.
  • John Overdeck bought 5,558 X4 Pharmaceuticals shares in Q2 2026, an estimated $22.8K.
  • X4 Pharmaceuticals made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #4903 holding.
  • John Overdeck first reported a position in X4 Pharmaceuticals in Q3 2018 and has held it in 9 quarters since.
  • John Overdeck's X4 Pharmaceuticals position peaked at $917K in Q2 2023.
  • 88 funds tracked by Wall St. Rank held X4 Pharmaceuticals as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.