WhaleCreepWhat the best hedge funds own, from their SEC 13F filings
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Which hedge funds own BLLN? BILLIONTOONE INC, Q2 2026 13F holders

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9 of the hedge funds tracked by WhaleCreep disclosed a position in BLLN (BILLIONTOONE INC) in their Q2 2026 13F filings, worth $152.5m in total. The largest holder by portfolio weight is Baillie Gifford at 0.1% of its book. 6 managers opened a new position this quarter: Millennium Management, Polen Capital Management, Tudor Investment, Marshall Wace. 2 exited: Brevan Howard Capital Management, Soros Fund Management.

9tracked managers holding
6opened this quarter
2exited this quarter

Which hedge funds hold BLLN? Current holders by portfolio weight

ManagerAs ofWeight of bookValueSharesΔ sharesAction
Baillie GiffordQ2 2026 0.1%$74.6m901,420 -28% reduced
Millennium ManagementQ2 2026 0.0%$51.0m425,032 new
Polen Capital ManagementQ2 2026 0.0%$2.0m16,975 new
Renaissance Technologies LLCQ2 2026 0.0%$11.6m96,600 88% added
Tudor InvestmentQ2 2026 0.0%$2.6m21,517 new
Marshall WaceQ2 2026 0.0%$5.4m44,662 new
D. E. Shaw & CoQ2 2026 0.0%$3.1m25,981 573% added
Citadel AdvisorsQ2 2026 0.0%$1.8m15,155 new
First ManhattanQ2 2026 0.0%$403.4k3,362 new

Exited since the previous quarter

ManagerPrior weightPrior value
Brevan Howard Capital Management0.1%$609.1k
Soros Fund Management0.1%$1.1m

How has hedge fund ownership of BLLN changed?

QuarterManagers holdingCombined value
Q2 20269$152.5m
Q1 20265$32.3m
Q4 20253$56.7m

Counts every tracked manager that disclosed BLLN in that quarter's filing, including managers that have since stopped filing.