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John Overdeck’s Mustang Bio MBIO Stock Holding History

John Overdeck’s Portfolio MBIO Stock Details MBIO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-16,754
Closed -$12.2K – 5289
2026
Q1 		$12.2K Sell
16,754
-23,280
-58% -$21.9K ﹤0.01% 4523
2025
Q4 		$39.3K Buy
+40,034
New +$52.9K ﹤0.01% 3958
2025
Q1 		– Sell
-814
Closed -$7.2K – 3382
2024
Q4 		$7.2K Buy
+814
New +$8.99K ﹤0.01% 3141
2023
Q2 		– Sell
-121
Closed -$33.2K – 3164
2023
Q1 		$33.2K Sell
121
-32
-21% -$13.1K ﹤0.01% 2801
2022
Q4 		$45.3K Sell
153
-29
-16% -$9.9K ﹤0.01% 2605
2022
Q3 		$64K Sell
182
-104
-36% -$48.2K ﹤0.01% 2290
2022
Q2 		$126K Sell
286
-356
-55% -$197K ﹤0.01% 2242
2022
Q1 		$486K Sell
642
-321
-33% -$264K ﹤0.01% 2027
2021
Q4 		$1.2M Sell
963
-302
-24% -$488K ﹤0.01% 2387
2021
Q3 		$2.55M Sell
1,265
-524
-29% -$1.13M 0.01% 1753
2021
Q2 		$4.45M Buy
1,789
+1,058
+145% +$2.59M 0.01% 1272
2021
Q1 		$1.82M Buy
731
+497
+212% +$1.48M ﹤0.01% 1782
2020
Q4 		$664K Sell
234
-240
-51% -$574K ﹤0.01% 2300
2020
Q3 		$1.12M Buy
474
+457
+2,688% +$1.13M ﹤0.01% 1677
2020
Q2 		$41K Buy
+17
New +$39.7K ﹤0.01% 2848

Other funds holding MBIO

KAS
Kestra Advisory Services Austin, Texas $31B AUM 28.39% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
CG
CFO4Life Group Coppell, Texas $743M AUM 25.26% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
XT
XTX Topco George Town, Cayman Islands $7.72B AUM 32.88% 1-Year Est. Return
VF
Virtu Financial New York $3.18B AUM 65.92% 1-Year Est. Return
TSS
Two Sigma Securities New York $1.16B AUM 36.23% 1-Year Est. Return

John Overdeck's MBIO Position: Q2 2026 in Review

John Overdeck sold out of Mustang Bio (MBIO) in Q2 2026, closing a stake of 16,754 shares — an estimated $12.2K sold.

John Overdeck first reported a position in MBIO in Q2 2020 and held it in 15 quarters. The position peaked at $4.45M in Q2 2021. 23 funds tracked by Wall St. Rank hold MBIO as of Q2 2026.

  • John Overdeck reported no remaining Mustang Bio position as of Q2 2026 after selling out during the quarter.
  • John Overdeck sold 16,754 Mustang Bio shares in Q2 2026, an estimated $12.2K.
  • John Overdeck first reported a position in Mustang Bio in Q2 2020 and held it in 15 quarters.
  • John Overdeck's Mustang Bio position peaked at $4.45M in Q2 2021.
  • 23 funds tracked by Wall St. Rank held Mustang Bio as of Q2 2026.

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