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FP

Flagship Pioneering Portfolio holdings

AUM $1.16B
1-Year Est. Return 67.93%
This Fund
S&P 500
This Quarter Est. Return
+11.07%
1 Year Est. Return
+67.93%
3 Year Est. Return
-39.17%
5 Year Est. Return
-45.89%
10 Year Est. Return
–
AUM
$1.16B
AUM Growth
+$838M
Cap. Flow
+$765M
Cap. Flow %
65.88%
Top 10 Hldgs %
100%
Holding
5
New
1
Increased
–
Reduced
–
Closed
–

Top Buys

Rank Stock Value
1
GENB
Generate Biomedicines
GENB
+$765M

Top Sells

No sells this quarter

Sector Composition

Rank Sector Weight
1 Healthcare 100%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
GENB
1
Generate Biomedicines
GENB
$1.78B
$783M 67.44%
+62,673,117
New +$765M
MRNA icon
2
Moderna
MRNA
$23B
$235M 20.26%
4,632,149
– –
SANA icon
3
Sana Biotechnology
SANA
$868M
$72M 6.2%
25,001,856
– –
FHTX icon
4
Foghorn Therapeutics
FHTX
$306M
$60.6M 5.22%
12,674,120
– –
MCRB icon
5
Seres Therapeutics
MCRB
$51.1M
$10.3M 0.88%
1,155,850
– –

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AC
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BI
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SCP
Sandhill Capital Partners Buffalo, New York $1.16B AUM 12.37% 1-Year Est. Return
SFG
SNS Financial Group Minneapolis, Minnesota $1.16B AUM 13.88% 1-Year Est. Return
GAB
German American Bancorp Jasper, Indiana $1.16B AUM 25.7% 1-Year Est. Return
AMI
Amica Mutual Insurance Providence, Rhode Island $1.16B AUM 21.34% 1-Year Est. Return
FFP
FourThought Financial Partners Venice, Florida $1.16B AUM 24.95% 1-Year Est. Return
MI
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Flagship Pioneering's Q1 2026 Portfolio in Review

As of Q1 2026, Flagship Pioneering held 5 positions worth $1.16B, up 258% from $324M the previous quarter. Its ten largest holdings account for 100% of the portfolio.

Flagship Pioneering deployed $765M of net new capital in Q1 2026, opening 1 new position. Its largest new stake was Generate Biomedicines: 62,673,117 shares worth $783M.

By sector, the portfolio is most concentrated in Healthcare at 100% of assets, unchanged from a quarter earlier.

  • Flagship Pioneering's largest Q1 2026 buy was Generate Biomedicines: 62,673,117 shares worth $783M.
  • Flagship Pioneering's ten largest holdings make up 100% of its $1.16B portfolio in Q1 2026.
  • Flagship Pioneering opened 1 new position and closed 0 in Q1 2026.
  • Flagship Pioneering's portfolio value rose 258% quarter-over-quarter to $1.16B.

Based on Flagship Pioneering's 13F filing for Q1 2026, filed 15 May 2026.