Billiontoone Inc Cl A
$98.12-4.5%
+$593.1M
Net Activity
+35.52% total shares
Institutions Holding
159
Popularity Rank
#3555
Avg Weight
1.11%
Total Value
$1.8B
Market Cap
$2.1B
159 institutions currently hold BLLN, with 134 net buyers and 24 net sellers this quarter.
Institutional Moves (Q2 2026)
Significantly Increased
Based on recent trading activity
Net Selling Institutions
24
Net Buying Institutions
134
Top 5 by Value
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Across its top 20 institutional holders, BLLN's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 17/100, avg. turnover score 41/100).
BLLN ranks #3555 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
BLLN is a disclosed holding of Baillie Gifford (Baillie Gifford & Co.), one of the tracked superinvestors on AlphaSMO — it makes up 0.1% of that fund's own 13F portfolio.
BLLN is a top-conviction position for Adams Street Partners LLC — at 46.4% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
BLLN is down 4.5% today, but institutions show net buying of $593.1M this quarter — a divergence between today's price move and the underlying institutional flow.
BLLN posted net income of $37.7M over the trailing twelve months, and currently trades at a P/E of 55.2.
+$847.9M
Total Buy Value
$245.2M
Total Sell Value
134
Net Buyers
24
Net Sellers
BLLN
Q2 2026
Top 5 Institutional Movers
BLLN does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
31
Filings (90d)
$31.76M
Total Est. Value
284K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| Atay Oguzhan | 2026-10-15 | $516K |
| Atay Oguzhan | 2026-10-14 | $313K |
| Atay Oguzhan | 2026-10-14 | $261K |
| Atay Oguzhan | 2026-10-13 | $260K |
| Atay Oguzhan | 2026-10-13 | $1.56M |
| Tsao David | 2026-10-05 | $2.16M |
| Tsao David | 2026-10-05 | $184K |
| ten Bosch John Roderick | 2026-10-05 | $298K |
| Atay Oguzhan | 2026-09-28 | $1.01M |
| Atay Oguzhan | 2026-09-28 | $322K |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
No Schedule 13D/13G filings for this ticker
1
Filings (14d)
BillionToOne (ticker: BLLN) issued an 8-K on August 5, 2026, saying it had published a press release with its financial results for the quarter ending June 30, 2026. The press release is attached as Exhibit 99.1, but the filing excerpt here doesn't include the actual numbers from that release.
View Full Filing (SEC EDGAR)090168105
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,278
Total reported value
$2.2T
3254 13F institutions increased their position this quarter
Institutions Holding
6,025
Total reported value
$3.6T
3054 13F institutions increased their position this quarter
Institutions Holding
6,188
Total reported value
$1.8T
2995 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,255
Total reported value
$346.5B
Held by 4255 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,146
Total reported value
$257.5B
Held by 4146 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,137
Total reported value
$279.7B
Held by 4137 institutions — one of the most-tracked stocks on AlphaSMO
Access BLLN's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/BLLNCLI
npx alphasmo stocks get BLLN