As of the latest SEC filings, BillionToOne, Inc. (BLLN) is held by 81 institutional funds. The largest fund shareholder is BARON DISCOVERY FUND (BDFIX), holding an estimated $22,642,360.20 in market value, representing 1.38% of its portfolio.
Funds holding BillionToOne, Inc. (BLLN)
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- BLLN
- CIK:
- 0002070849
| Fund | Type | Manager | Weight | Market Value | Shares |
Report Date
|
Filing Date
|
|---|---|---|---|---|---|---|---|
|
BDFIX
BARON DISCOVERY FUND
|
MF | Independent / Boutique | 1.38% | $22,642,360.20 | 286,830 | Mar 31, 2026 | May 22, 2026 |
|
PRHSX
T. Rowe Price Health Sciences Fund, Inc.
|
MF | T. Rowe Price | 0.19% | $20,877,656.50 | 264,475 | Mar 31, 2026 | May 28, 2026 |
|
SMCWX
SMALLCAP World Fund Inc
|
MF | Independent / Boutique | 0.02% | $14,051,320.00 | 178,000 | Mar 31, 2026 | May 28, 2026 |
|
WIAEX
Wasatch Small Cap Growth Fund
|
MF | Independent / Boutique | 1.16% | $13,986,510.26 | 177,179 | Mar 31, 2026 | May 5, 2026 |
|
ODINX
Invesco Discovery Fund
|
MF | Invesco | 0.21% | $13,918,622.84 | 182,348 | Feb 28, 2026 | Apr 28, 2026 |
|
LACAX
Columbia Acorn Fund
|
MF | Columbia Threadneedle | 0.58% | $13,120,222.70 | 166,205 | Mar 31, 2026 | May 28, 2026 |
|
PGSGX
JPMorgan Small Cap Growth Fund
|
MF | JPMorgan | 0.53% | $11,500,373.90 | 145,685 | Mar 31, 2026 | May 29, 2026 |
|
PRJIX
T. Rowe Price New Horizons Fund, Inc.
|
MF | T. Rowe Price | 0.09% | $10,973,449.40 | 139,010 | Mar 31, 2026 | May 28, 2026 |
|
VTI
VANGUARD TOTAL STOCK MARKET INDEX FUND
|
ETF | Vanguard | 0.00% | $9,953,702.48 | 126,092 | Mar 31, 2026 | May 28, 2026 |
|
PRDSX
T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund
|
MF | T. Rowe Price | 0.11% | $8,692,083.40 | 110,110 | Mar 31, 2026 | May 28, 2026 |
|
QUAZX
AB Small Cap Growth Portfolio
|
MF | Independent / Boutique | 0.27% | $7,937,438.10 | 105,762 | Apr 30, 2026 | Jun 24, 2026 |
|
NAESX
VANGUARD SMALL-CAP INDEX FUND
|
ETF | Vanguard | 0.00% | $7,278,741.64 | 92,206 | Mar 31, 2026 | May 28, 2026 |
|
BIOPX
BARON OPPORTUNITY FUND
|
MF | Independent / Boutique | 0.43% | $6,931,168.82 | 87,803 | Mar 31, 2026 | May 22, 2026 |
|
PGRTX
SmallCap Growth Fund I
|
MF | Independent / Boutique | 0.27% | $6,317,934.15 | 84,183 | Apr 30, 2026 | Jun 25, 2026 |
|
-
LVIP Baron Growth Opportunities Fund
|
ETF | Independent / Boutique | 0.87% | $5,543,798.32 | 70,228 | Mar 31, 2026 | May 18, 2026 |
|
GTSAX
Invesco Small Cap Growth Fund
|
MF | Invesco | 0.31% | $4,788,974.04 | 60,666 | Mar 31, 2026 | May 28, 2026 |
|
-
JNL/Invesco Small Cap Growth Fund
|
ETF | Independent / Boutique | 0.31% | $4,783,685.06 | 60,599 | Mar 31, 2026 | May 28, 2026 |
|
VISVX
VANGUARD SMALL-CAP VALUE INDEX FUND
|
ETF | Vanguard | 0.01% | $4,653,670.88 | 58,952 | Mar 31, 2026 | May 28, 2026 |
|
BGAIX
Baron Global Opportunity Fund
|
MF | Independent / Boutique | 0.55% | $4,601,728.36 | 58,294 | Mar 31, 2026 | May 22, 2026 |
|
FFGRX
Emerald Growth Fund
|
MF | Independent / Boutique | 0.33% | $4,584,129.05 | 61,081 | Apr 30, 2026 | Jun 22, 2026 |
|
NDVUX
MFS New Discovery Value Fund
|
MF | Independent / Boutique | 0.16% | $4,450,496.98 | 58,306 | Feb 28, 2026 | Apr 24, 2026 |
|
-
JNL Multi-Manager Small Cap Growth Fund
|
ETF | Independent / Boutique | 0.22% | $4,383,538.20 | 55,530 | Mar 31, 2026 | May 28, 2026 |
|
MNDBX
MFS New Discovery Fund
|
MF | Independent / Boutique | 0.19% | $4,070,068.26 | 53,322 | Feb 28, 2026 | Apr 24, 2026 |
|
VEMPX
VANGUARD EXTENDED MARKET INDEX FUND
|
ETF | Vanguard | 0.00% | $4,001,073.90 | 50,685 | Mar 31, 2026 | May 28, 2026 |
|
VSCCX
JPMorgan Small Cap Blend Fund
|
MF | JPMorgan | 0.26% | $3,712,785.02 | 47,033 | Mar 31, 2026 | May 29, 2026 |
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