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BLLN

BillionToOne, Inc. Class A · XNAS

Season
Q2 2026 · as of Jun 30
Holders
3 of 97 filed · prev 3
Median weight
0.10%
Sector
Health Care
Type
equity · US

Moves2 this quarter

Streakslongest holders · 3 quarters on record

  1. Baron Ron Baron, CEO 0.1%3+ quarters
  2. Baillie 0.1%3+ quarters
  3. Polen Dan Davidowitz, portfolio manager 0.0%new

The record for BLLN begins Q4 2025: 3 quarters.

Over time3 quarters, Q4 2025 to Q2 2026

Managers holding3 Q2 2026

Largest weight0.1% Q2 2026

Holders3 of 97 filed · 1 exited

BaronRon Baron, CEO0.13%742,093$89Madded0%+0.05 pp3+ q
Baillie0.10%901,420$108Mtrimmed−28%—3+ q
PolenDan Davidowitz, portfolio manager0.02%16,975$2Mnew—new
SorosDawn Fitzpatrick, CIO———exited−0.02 pp—