Noubar B. Afeyan, Ph.D.

Flagship Pioneering, Llc

Assets Managed

$1.162B

Holdings

Last Quarter

2026 - Q1

Filed Date

16d ago

Growth Rate

258.47%(2Q avg: 134.61%)

Sustained Growth

4 quarters

Portfolio positions

This chart displays the top 10 holdings in Flagship Pioneering, Llc's 2026 - Q1 portfolio, based on their 13F SEC filing, out of a total of 5 positions.

Assets under management

The assets under management (AUM) of Flagship Pioneering, Llc over the past 10 years (40 quarters) show continuous growth in total asset value over the last 4 quarters. As of the latest 13F SEC filing for 2026 - Q1, they manage 1.162B in assets, with a quarterly growth rate of 258.47% and a 2-quarter average growth rate of 134.61%. The portfolio is managed by Noubar B. Afeyan, Ph.D., and others.

Portfolio holdings

Investment	Portfolio %	Reported Value	Recent Activity
GENB Generate Biomedicines Inc Recent Activity New Position	67.45%	$783.414M 62.673M shares@ $12.51 avg price	New Position
MRNA Moderna Inc Recent Activity	20.26%	$235.313M 4.632M shares@ $50.8 avg price
SANA Sana Biotechnology Inc Recent Activity	6.2%	$72.005M 25.002M shares@ $2.89 avg price
FHTX Foghorn Therapeutics Inc Recent Activity	5.22%	$60.582M 12.674M shares@ $4.79 avg price
MCRB Seres Therapeutics Inc Recent Activity	0.89%	$10.252M 1.156M shares@ $8.88 avg price

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