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WAVEMAN · COMPANY
BLLN · Billiontoone, Inc.
> Ask across nine datasets ⌘K
LIVE
TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475
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BLLN

BillionToOne, Inc.
HEALTHCARE SERVICES · SERVICES-MEDICAL LABORATORIES · CIK 0002070849
FORM 144 · 22☆ WATCH
INSIDER NET · 180D
-$30.2M
open-market buys minus sells, Form 4 codes P and S
INSIDER BUYERS · 180D
0
CONGRESS BUYERS · 1Y
0
FUNDS ADDED · QTR
129
13F, latest reported quarter
REVENUE GROWTH
+100.0%
XBRL, annual
NET MARGIN
2.4%
CONVERSIONS · 180D
18
codes C/M, not in net · $564.9K priced
SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST
INSIDERS
net -$30.2M over 180 days
-$30.2M over 90 days
below 83% of Healthcare Services
CONGRESS
no member of Congress has reported trading it
FUNDS
129 funds added or opened last quarter
below 53% of Healthcare Services
REVENUE
+100.0% year over year
more than 95% of Healthcare Services
MARGIN
2.4% net margin
more than 58% of Healthcare Services
BUYBACKS
no share repurchases reported
SHORT
3.4 days to cover · settled 2026-07-31
THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET
Insiders are net sellers: -$30.2M across 5 people in 180 days.
129 funds added or opened positions in the latest 13F quarter, of 158 holders.
The year, with the filings on it
Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail
TOTAL 12M RETURN -8.8%
-8.8%12M
-41%-15%+11%+38%2025-112025-122026-022026-042026-052026-072026-09 2026-08-05 · Atay Oguzhan sold $2.3M2026-08-03 · Atay Oguzhan sold $1.4M2025-11-07 · Bremner Thomas S bought $1.1M2026-08-25 · Tsao David sold $1.0M2026-07-09 · Atay Oguzhan sold $939.3K2026-08-10 · Tsao David sold $928.6K2026-08-03 · Atay Oguzhan sold $866.8K2026-08-03 · Atay Oguzhan sold $858.6K2026-07-06 · Atay Oguzhan sold $765.9K2026-07-16 · Johnson Nancy JoAnn sold $722.3K2026-07-16 · Johnson Nancy JoAnn sold $710.9K2026-07-06 · Atay Oguzhan sold $650.4K2026-06-08 · Atay Oguzhan sold $625.0K2026-06-08 · Atay Oguzhan sold $602.8K2026-07-31 · Sakakibara Shan Riku sold $560.8K2026-06-08 · Atay Oguzhan sold $518.0K2026-07-09 · Sakakibara Shan Riku sold $500.0K2026-07-13 · Tsao David sold $482.3K2026-06-09 · Johnson Nancy JoAnn sold $463.2K2026-06-24 · Sakakibara Shan Riku sold $440.0K2026-07-06 · Atay Oguzhan sold $434.4K2026-08-03 · Atay Oguzhan sold $428.9K2026-08-03 · Atay Oguzhan sold $428.8K2026-06-08 · Atay Oguzhan sold $423.6K2025-11-07 · Johnson Nancy JoAnn bought $414.0K2025-11-07 · Bremner Thomas S bought $412.0K2026-07-13 · Tsao David sold $400.8K2026-06-08 · Sakakibara Shan Riku sold $400.0K2026-06-08 · Atay Oguzhan sold $399.0K2026-06-08 · Sakakibara Shan Riku sold $385.8K2026-06-08 · Atay Oguzhan sold $357.1K2026-07-09 · Atay Oguzhan sold $338.6K2026-08-03 · Atay Oguzhan sold $335.7K2025-11-07 · Bremner Thomas S bought $326.8K2026-07-13 · Tsao David sold $306.8K2026-06-15 · Tsao David sold $305.5K2026-07-13 · Tsao David sold $301.6K2026-06-15 · Tsao David sold $299.5K2026-06-15 · Tsao David sold $289.4K2026-06-08 · Johnson Nancy JoAnn sold $289.1K2026-07-06 · Atay Oguzhan sold $286.4K2026-07-06 · Atay Oguzhan sold $286.3K2026-01-20 · Hummingbird Ventures Management NV filed a 5%+ stake (19.6%)2026-01-20 · Hummingbird Opportunity Fund II CommV filed a 5%+ stake (6.55%)2026-01-20 · Hummingbird Ventures III CommV filed a 5%+ stake (6.43%)2026-01-20 · Hummingbird Dragons CommV filed a 5%+ stake (5.02%)2026-01-20 · Hummingbird Collective CommV filed a 5%+ stake (0.05%)2026-01-20 · HB&Q NV filed a 5%+ stake (1.6%)2026-01-20 · Firat Ileri filed a 5%+ stake (19.6%)2026-01-20 · Barend Van den Brande filed a 5%+ stake (19.6%)2026-01-20 · Lukas Decoster filed a 5%+ stake (19.6%)2026-08-25 · ten Bosch John Roderick filed to sell $141.7K2026-08-25 · Tsao David filed to sell $1.0M2026-08-10 · Tsao David filed to sell $928.6K2026-08-10 · Tsao David filed to sell $325.0K2026-08-10 · ten Bosch John Roderick filed to sell $131.6K2026-08-05 · Atay Oguzhan filed to sell $2.3M2026-08-03 · Atay Oguzhan filed to sell $4.5M2026-08-03 · Atay Oguzhan filed to sell $1.7M2026-08-03 · Atay Oguzhan filed to sell $343.4K2026-07-31 · Sakakibara Shan Riku filed to sell $560.8K2026-07-16 · Johnson Nancy JoAnn filed to sell $1.8M2026-07-13 · Tsao David filed to sell $439.1K2026-07-13 · ten Bosch John Roderick filed to sell $533.3K2026-07-13 · Tsao David filed to sell $250.5K2026-07-09 · Atay Oguzhan filed to sell $1.6M2026-07-09 · Sakakibara Shan Riku filed to sell $1.0M2026-07-06 · Atay Oguzhan filed to sell $300.0K2026-07-06 · Atay Oguzhan filed to sell $3.1M2026-07-06 · Atay Oguzhan filed to sell $1.5M2026-07-01 · Johnson Nancy JoAnn filed to sell $100.1K
INSIDER BUYINSIDER SELL13D/G STAKEFORM 144
INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY
Live price
Daily candles from TradingView, on their licence — no filings are marked on this one
WHY THIS NAME IS ON THE DESK
Insiders have filed to sell — before selling.
The record shows a net $30.2M sold by insiders over 180 days, 129 funds added last quarter, $23.7M in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector from the SEC's own SIC classification
NTRACSTLPGNYHIMSWGSPRVATDOCAVAHGHADUSSERABDSX
Insider transactions
Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, BillionToOne, Inc. insiders sold a net $30.2M of stock across 119 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-05.

INSIDER
FILED
SHARES
VALUE
ten Bosch John Roderick
SVP of Laboratory Operations
SELL
2026-08-25
1,417.0
$141.7K
Tsao David
Chief Technology Officer
SELL
2026-08-25
10,000.0
$1.0M
Tsao David
Chief Technology Officer
SELL
2026-08-10
10,000.0
$928.6K
ten Bosch John Roderick
SVP of Laboratory Operations
SELL
2026-08-10
1,417.0
$131.6K
Atay Oguzhan
Chairman and CEO
SELL
2026-08-05
15,539.0
$2.3M
119 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 114 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders
13F · holdings as of the latest quarter funds have reported
ADAMS STREET PARTNERS LLC
1,711,430.0 sh
$205.3M
BAILLIE GIFFORD & CO
901,420.0 sh
$108.2M
VANGUARD PORTFOLIO MANAGEMENT LLC
840,970.0 sh
$100.9M
Invesco Ltd.
835,614.0 sh
$100.3M
VANGUARD CAPITAL MANAGEMENT LLC
799,468.0 sh
$95.9M
5%+ owners
13D = intent to influence · 13G = passive
Hummingbird Ventures Management NV
ACTIVIST 13D · 2026-01-20
19.6%
Hummingbird Opportunity Fund II CommV
ACTIVIST 13D · 2026-01-20
6.55%
Hummingbird Ventures III CommV
ACTIVIST 13D · 2026-01-20
6.43%
Hummingbird Dragons CommV
ACTIVIST 13D · 2026-01-20
5.02%
Hummingbird Collective CommV
ACTIVIST 13D · 2026-01-20
0.05%
Planned sales · Form 144
Filed before the sale — intent, not a trade
ten Bosch John Roderick
FILED 2026-08-25
$141.7K
Tsao David
FILED 2026-08-25
$1.0M
Tsao David
FILED 2026-08-10
$928.6K
Tsao David
FILED 2026-08-10
$325.0K
ten Bosch John Roderick
FILED 2026-08-10
$131.6K
Fund concentration
N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show
Baron Health Care Fund
$2.1M POSITION · AS OF 2026-03-31
1.8%
BARON DISCOVERY FUND
$22.6M POSITION · AS OF 2026-03-31
1.4%
F/m Emerald Life Sciences Innovation ETF
$1.3M POSITION · AS OF 2026-02-28
1.3%
Wasatch Small Cap Growth Fund
$14.0M POSITION · AS OF 2026-03-31
1.2%
VY(R) BARON GROWTH PORTFOLIO
$2.2M POSITION · AS OF 2026-03-31
1.0%
LVIP Baron Growth Opportunities Fund
$5.5M POSITION · AS OF 2026-03-31
0.9%
SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK
Clinical pipeline
ClinicalTrials.gov · 1 registered trials, 1 still enrolling or running — a status change here is dated weeks before the press release
1
Not applicable
1 ACTIVE
TRIALS MATCHED TO THIS TICKER BY SPONSOR NAME · STUDIES RUN UNDER A SUBSIDIARY'S OWN NAME ARE NOT INCLUDED
Fundamentals
Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all
2025-122024-122023-12
REVENUE$305.1M$152.6M$71.7M
GROSS PROFIT$208.5M$80.9M$17.3M
OPERATING INCOME$16.0M$-47.1M$-69.5M
NET INCOME$7.5M$-41.6M$-82.7M
EPS (DILUTED)0.14-4.12-8.45
OPERATING CASH FLOW$24.6M$-41.4M$-53.7M
CASH$496.0M$191.5M—
LONG-TERM DEBT$57.2M$51.5M—
BUYBACKS$0$546.0K$0
SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-05 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE
W WAVEMAN

Public filings, honestly analyzed. Official US government sources in one desk — every figure carries the date it was filed, and the methodology is published, backtest included.

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© 2026 WAVEMAN · SOURCE: SEC EDGAR & OFFICIAL GOVERNMENT DATA · NOT INVESTMENT ADVICE · CHART BY TRADINGVIEW · UPDATED 2026-09-05 ALL SYSTEMS LIVE FOR MACHINES →