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John Overdeck’s Sera Prognostics SERA Stock Holding History

John Overdeck’s Portfolio SERA Stock Details SERA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$29.5K Sell
16,221
-5,743
-26% -$11.4K ﹤0.01% 4970
2026
Q1 		$44.6K Hold
21,964
– – ﹤0.01% 4460
2025
Q4 		$64.8K Sell
21,964
-9,772
-31% -$31.5K ﹤0.01% 3905
2025
Q3 		$97.1K Buy
+31,736
New +$90.4K ﹤0.01% 3476

Other funds holding SERA

BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
WCA
Whetstone Capital Advisors Shawnee Mission, Kansas $380M AUM 20.01% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return
VC
Vivo Capital Palo Alto, California $1.1B AUM 799.93% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
CAPTRUST Financial Advisors
CAPTRUST Financial Advisors Raleigh, North Carolina $65.5B AUM 24.25% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
AIC
AWM Investment Company New York $1.15B AUM 201.65% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

John Overdeck's SERA Position: Q2 2026 in Review

John Overdeck reduced its Sera Prognostics (SERA) stake by 26% in Q2 2026, selling an estimated $11.4K and leaving 16,221 shares worth $29.5K. The position accounts for ﹤0.01% of the portfolio, ranked #4970.

John Overdeck first reported a position in SERA in Q3 2025 and has held it in 4 quarters since. The position peaked at $97.1K in Q3 2025. 46 funds tracked by Wall St. Rank hold SERA as of Q2 2026.

  • John Overdeck held 16,221 shares of Sera Prognostics worth $29.5K as of Q2 2026.
  • John Overdeck sold 5,743 Sera Prognostics shares in Q2 2026, an estimated $11.4K.
  • Sera Prognostics made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #4970 holding.
  • John Overdeck first reported a position in Sera Prognostics in Q3 2025 and has held it in 4 quarters since.
  • John Overdeck's Sera Prognostics position peaked at $97.1K in Q3 2025.
  • 46 funds tracked by Wall St. Rank held Sera Prognostics as of Q2 2026.

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