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Flagship Pioneering, LLC

Q1 2026 · Filed 2026-05-15
Market Value
$1.2B
+258.5%
Holdings
5
+1
New Purchases
1
Added To
0
Closed
0
Reduced
0
Top 10 Concentration
100.0%
Turnover
20.0%

Top Buys (by % of Portfolio)

SymbolCur %Prior %Chg %Value
GENB 67.44% 0.00% +67.44% $783M

Top Sells (by % of Portfolio)

SymbolCur %Prior %Chg %Value
SANA 6.20% 31.40% -25.20% $72M
MRNA 20.26% 42.16% -21.90% $235M
FHTX 5.22% 21.12% -15.91% $61M
MCRB 0.88% 5.32% -4.44% $10M

Sector Allocation Over Time

Market Cap Concentration

TierHoldingsValueWeight
Large Cap 1 $235M 20.3%
Small Cap 2 $855M 73.6%
Micro Cap 2 $71M 6.1%

Portfolio Analytics

Avg Market Cap
$15.6B
Median Market Cap
$804M
Avg P/E
—
Median P/E
—
Avg Dividend Yield
—%
Avg Beta
1.19
# Stocks
5
# ETFs / Funds
0

Top Holdings (5 total)

# Symbol % Port Shares Value Avg Price Q/Q Value Chg Share Chg Chg % Status
1 GENB 67.44% 62,673,117 $783M $12.50 — +62,673,117 — NEW
2 MRNA 20.26% 4,632,149 $235M $50.80 $99M — —
3 SANA 6.20% 25,001,856 $72M $2.88 -$30M — —
4 FHTX 5.22% 12,674,120 $61M $4.78 -$8M — —
5 MCRB 0.88% 1,155,850 $10M $8.87 -$7M — —

New Positions

SymbolValue% Port
GENB $783M 67.44%
View SEC EDGAR Filings for Flagship Pioneering, LLC →

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms