JO
IBO

John Overdeck’s Impact BioMedical IBO Stock Holding History

John Overdeck’s Portfolio IBO Stock Details IBO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$7.91K Sell
17,191
-20,236
-54% -$12K ﹤0.01% 5008
2026
Q1 		$22.5K Sell
37,427
-2,400
-6% -$1.2K ﹤0.01% 4505
2025
Q4 		$20.1K Buy
39,827
+8,327
+26% +$4.41K ﹤0.01% 3999
2025
Q3 		$20.9K Buy
31,500
+8,800
+39% +$5.55K ﹤0.01% 3597
2025
Q2 		$14.7K Buy
+22,700
New +$12.7K ﹤0.01% 3133

Other funds holding IBO

Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return
Vanguard Global Advisers
Vanguard Global Advisers Malvern, Pennsylvania $215B AUM
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
MAC
Mason & Associates (California) Los Angeles, California $619M AUM 29.44% 1-Year Est. Return

John Overdeck's IBO Position: Q2 2026 in Review

John Overdeck reduced its Impact BioMedical (IBO) stake by 54% in Q2 2026, selling an estimated $12K and leaving 17,191 shares worth $7.91K. The position accounts for ﹤0.01% of the portfolio, ranked #5008.

John Overdeck first reported a position in IBO in Q2 2025 and has held it in 5 quarters since. The position peaked at $22.5K in Q1 2026. 22 funds tracked by Wall St. Rank hold IBO as of Q2 2026.

  • John Overdeck held 17,191 shares of Impact BioMedical worth $7.91K as of Q2 2026.
  • John Overdeck sold 20,236 Impact BioMedical shares in Q2 2026, an estimated $12K.
  • Impact BioMedical made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #5008 holding.
  • John Overdeck first reported a position in Impact BioMedical in Q2 2025 and has held it in 5 quarters since.
  • John Overdeck's Impact BioMedical position peaked at $22.5K in Q1 2026.
  • 22 funds tracked by Wall St. Rank held Impact BioMedical as of Q2 2026.

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