BillionToOne (BLLN) Held by Superinvestors
BillionToOne, Inc. (BLLN) is currently held by 2 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $13.63M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Renaissance Technologies LLC is currently the largest disclosed institutional shareholder of BLLN tracked by InsiderSet, reporting ownership valued at approximately $11.59M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $9.46M, representing an estimated loss of -18.42% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed BLLN value among the investors covered in this analysis. Major shareholders include Renaissance Technologies LLC, Polen Capital Management, and several other long-term asset managers with concentrated positions in BillionToOne, Inc. (BLLN).
This page ranks the largest institutional BLLN shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Renaissance Technologies LLC | Jim Simons | 0.02% | 96,600 | $11,590,068 | $9,455,208 | -$2,134,860 | -18.42% |
| Polen Capital Management | David M. Polen | 0.02% | 16,975 | $2,036,661 | $1,661,513 | -$375,148 | -18.42% |
Frequently asked questions about BLLN
Who are the largest superinvestors holding BLLN?
The largest superinvestors holding BLLN in the latest SEC Form 13F filings include Renaissance Technologies LLC and Polen Capital Management. InsiderSet ranks these superinvestors by their latest reported BLLN position.
What does the BLLN superinvestors page include?
This page tracks BLLN positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. BillionToOne, Inc. (BLLN) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold BLLN?
InsiderSet currently tracks 2 superinvestors reporting BLLN holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own BLLN.
How much BLLN stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $13.63M in BLLN holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were BLLN superinvestor holdings last updated?
The latest BLLN superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor BLLN holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its BLLN position after the reporting date.
Are superinvestors buying or selling BLLN?
Buying and selling can be analyzed by comparing BLLN positions across consecutive 13F reporting periods. InsiderSet's BLLN Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View BLLN ownership changes.
How have superinvestor BLLN holdings changed over time?
InsiderSet tracks BLLN holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.