BillionToOne (BLLN) Latest Stock Analysis Report – Oct 15, 2026, 4:00 PM ET
Updated Oct 15, 2026, 4:00 PM ET
BLLN jumps 5.0% to $102.73, 3 up days in a row. Closed at $102.73, +4.96% vs the prior close of $97.88. Day range $93.44–$102.93, opened at $97.18.
BLLN daily analysis — what happened
A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.
Oct 15, 2026 — BLLN jumps 5.0% to $102.73, 3 up days in a row
- Closed at $102.73, +4.96% vs the prior close of $97.88. Day range $93.44–$102.93, opened at $97.18.
- Volume was 426.10K shares, 0.6x its 50-day average of 699.29K.
- Price is +2.0% vs its 50-day average ($100.75) and +7.6% vs its 200-day average ($95.49).
- 52-week range $61.96–$150.44; today's close sits at 46% of that range, 31.7% below the 52-week high.
- That makes 3 straight gains.
Oct 14, 2026 — BLLN jumps 3.6% to $97.88
- Closed at $97.88, +3.64% vs the prior close of $94.44. Day range $93.38–$99.75, opened at $93.38.
- Volume was 424.90K shares, 0.6x its 50-day average of 703.94K.
- Price is -3.7% vs its 50-day average ($101.69) and +2.6% vs its 200-day average ($95.40).
- 52-week range $61.96–$150.44; today's close sits at 41% of that range, 34.9% below the 52-week high.
Oct 13, 2026 — BLLN rises 1.5% to $94.44
- Closed at $94.44, +1.47% vs the prior close of $93.07. Day range $90.48–$96.00, opened at $91.81.
- Volume was 664.00K shares, 0.9x its 50-day average of 707.52K.
- Price is -7.9% vs its 50-day average ($102.58) and -1.0% vs its 200-day average ($95.36).
- 52-week range $61.96–$150.44; today's close sits at 37% of that range, 37.2% below the 52-week high.
Oct 12, 2026 — BLLN slides 5.1% to $93.07, a 1-month low
- Closed at $93.07, -5.12% vs the prior close of $98.09. Day range $91.22–$97.61, opened at $97.61.
- Volume was 491.50K shares, 0.7x its 50-day average of 708.32K.
- Price is -10.0% vs its 50-day average ($103.44) and -2.4% vs its 200-day average ($95.32).
- 52-week range $61.96–$150.44; today's close sits at 35% of that range, 38.1% below the 52-week high.
Oct 9, 2026 — BLLN rises 2.8% to $98.09
- Closed at $98.09, +2.81% vs the prior close of $95.41. Day range $94.46–$100.31, opened at $94.46.
- Volume was 325.00K shares, 0.5x its 50-day average of 712.12K — lighter than usual.
- Price is -6.0% vs its 50-day average ($104.35) and +2.9% vs its 200-day average ($95.29).
- 52-week range $61.96–$150.44; today's close sits at 41% of that range, 34.8% below the 52-week high.
Oct 8, 2026 — BLLN dips 0.4% to $95.41, a 1-month low, 3 down days in a row
- Closed at $95.41, -0.36% vs the prior close of $95.75. Day range $91.01–$96.01, opened at $94.06.
- Volume was 386.30K shares, 0.5x its 50-day average of 716.62K — lighter than usual.
- Price is -9.3% vs its 50-day average ($105.18) and +0.1% vs its 200-day average ($95.28).
- 52-week range $61.96–$150.44; today's close sits at 38% of that range, 36.6% below the 52-week high.
- That makes 3 straight losses.
Oct 7, 2026 — BLLN slides 4.2% to $95.75, a 1-month low
- Closed at $95.75, -4.19% vs the prior close of $99.94. Day range $94.52–$99.85, opened at $99.42.
- Volume was 679.80K shares, 0.9x its 50-day average of 719.14K.
- Price is -9.6% vs its 50-day average ($105.92) and +0.5% vs its 200-day average ($95.32).
- 52-week range $61.96–$150.44; today's close sits at 38% of that range, 36.4% below the 52-week high.
Oct 6, 2026 — BLLN slides 8.4% to $99.94
- Closed at $99.94, -8.36% vs the prior close of $109.06. Day range $98.90–$112.87, opened at $107.86.
- Volume was 1.12M shares, 1.6x its 50-day average of 706.39K.
- Price is -6.3% vs its 50-day average ($106.68) and +4.9% vs its 200-day average ($95.31).
- 52-week range $61.96–$150.44; today's close sits at 43% of that range, 33.6% below the 52-week high.
Oct 5, 2026 — BLLN rises 3.0% to $109.06
- Closed at $109.06, +2.98% vs the prior close of $105.90. Day range $104.42–$110.09, opened at $105.15.
- Volume was 407.70K shares, 0.6x its 50-day average of 707.82K — lighter than usual.
- Price is +1.7% vs its 50-day average ($107.24) and +14.5% vs its 200-day average ($95.28).
- 52-week range $61.96–$150.44; today's close sits at 53% of that range, 27.5% below the 52-week high.
Oct 2, 2026 — BLLN ends flat (+0.1%) to $105.90
- Closed at $105.90, +0.13% vs the prior close of $105.76. Day range $102.91–$109.38, opened at $106.39.
- Volume was 418.10K shares, 0.6x its 50-day average of 708.72K — lighter than usual.
- Price is -1.6% vs its 50-day average ($107.58) and +11.2% vs its 200-day average ($95.19).
- 52-week range $61.96–$150.44; today's close sits at 50% of that range, 29.6% below the 52-week high.
BLLN latest news & SEC filings
Every SEC filing by or about BLLN in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Oct 15, 2026 · 144 — Notice of proposed sale (Form 144)
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Oct 14, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Atay Oguzhan converted options/RSUs into 16,667 shares at $2.80 (≈$46.67K) on Oct 12, 2026; now holds 16,667
- Atay Oguzhan sold 1,961 shares at $91.57 (≈$179.57K) on Oct 12, 2026; now holds 14,706
- Atay Oguzhan sold 2,553 shares at $93.05 (≈$237.55K) on Oct 12, 2026; now holds 12,153
- Atay Oguzhan sold 6,763 shares at $93.65 (≈$633.33K) on Oct 12, 2026; now holds 5,390
- Atay Oguzhan sold 3,869 shares at $94.61 (≈$366.06K) on Oct 12, 2026; now holds 1,521
- Atay Oguzhan sold 1,521 shares at $96.39 (≈$146.61K) on Oct 12, 2026
- …plus 1 more transaction lines in the filing.
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 14, 2026 · 144 — Notice of proposed sale (Form 144)
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Oct 14, 2026 · 144 — Notice of proposed sale (Form 144)
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Oct 13, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Lynch Thomas P. converted options/RSUs into 8,000 shares at $8.65 (≈$69.20K) on Oct 8, 2026; now holds 8,700
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 13, 2026 · 144 — Notice of proposed sale (Form 144)
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Aug 5, 2026 · 10-Q — Quarterly report (unaudited financial statements for the quarter)
Quarterly report (unaudited financial statements for the quarter)
Quarter ended Jun 30, 2026:
- Revenue: $109.45M (prior year $66.57M) (+64.4% vs Jun 30, 2025)
- Net income: $8.05M (prior year -$246.00K) (swung to profit vs Jun 30, 2025)
- Diluted EPS: $0.15 (prior year -$0.02) (swung to profit vs Jun 30, 2025)
Aug 5, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 2.02 — Reported results of operations (earnings release).
This is a results-day filing: the earnings press release is attached as an exhibit.
Jun 29, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 1.01 — Signed a material agreement.
- Item 2.03 — Took on a new material debt or financial obligation.
Things to know before you trade BLLN
- Last results release: Aug 5, 2026 (8-K Item 2.02). Previous ones: May 6, 2026, Mar 4, 2026, Jan 12, 2026. Based on that rhythm, the next report is likely around Nov 4, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 3.93% (largest 11.8%). That is a volatile stock.
- Liquidity: about 654.01K shares (≈$67.19M) trade per day on average.
- 52-week position: $102.73 vs a range of $61.96–$150.44 (46% of the range).
- Dividends: no cash dividends in the last 2 years.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 0 open-market buys, 25 sales; latest: Oguzhan Atay sold 2,666 shares on Sep 28, 2026.
- Latest filings: 10-Q Aug 5, 2026; 8-K Aug 5, 2026; 8-K Jun 29, 2026.
- Listing: Nasdaq · industry: Services-Medical Laboratories.
BLLN market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 15, 2026 | 97.18 | 102.93 | 93.44 | 102.73 | 426.10K |
| Oct 14, 2026 | 93.38 | 99.75 | 93.38 | 97.88 | 424.90K |
| Oct 13, 2026 | 91.81 | 96.00 | 90.48 | 94.44 | 664.00K |
| Oct 12, 2026 | 97.61 | 97.61 | 91.22 | 93.07 | 491.50K |
| Oct 9, 2026 | 94.46 | 100.31 | 94.46 | 98.09 | 325.00K |
| Oct 8, 2026 | 94.06 | 96.01 | 91.01 | 95.41 | 386.30K |
| Oct 7, 2026 | 99.42 | 99.85 | 94.52 | 95.75 | 679.80K |
| Oct 6, 2026 | 107.86 | 112.87 | 98.90 | 99.94 | 1.12M |
| Oct 5, 2026 | 105.15 | 110.09 | 104.42 | 109.06 | 407.70K |
| Oct 2, 2026 | 106.39 | 109.38 | 102.91 | 105.90 | 418.10K |
| Oct 1, 2026 | 105.67 | 108.58 | 103.51 | 105.76 | 586.90K |
| Sep 30, 2026 | 118.48 | 118.48 | 105.61 | 106.44 | 968.60K |
| Sep 29, 2026 | 121.72 | 124.60 | 118.00 | 118.18 | 440.40K |
| Sep 28, 2026 | 120.64 | 125.00 | 119.05 | 121.72 | 343.60K |
| Sep 25, 2026 | 125.19 | 127.50 | 123.00 | 123.08 | 528.10K |
| Sep 24, 2026 | 112.33 | 127.71 | 112.33 | 124.90 | 998.00K |
| Sep 23, 2026 | 116.00 | 117.19 | 113.55 | 114.42 | 397.70K |
| Sep 22, 2026 | 104.00 | 118.72 | 102.75 | 116.07 | 1.12M |
| Sep 21, 2026 | 106.61 | 107.21 | 103.62 | 103.86 | 412.70K |
| Sep 18, 2026 | 112.16 | 113.00 | 104.75 | 105.92 | 1.94M |
About BillionToOne
BillionToOne (BLLN) is listed on the Nasdaq and classified by the SEC under “Services-Medical Laboratories”. Its business address is in MENLO PARK, CA. State of incorporation: DE. Fiscal year ends December 31. SEC CIK 2070849.
BLLN board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Oguzhan Atay | Chairman and CEO | Sep 30, 2026 |
| Thomas S Bremner | Director | Jun 12, 2026 |
| Firat Ileri | Director | Jun 12, 2026 |
| Krishna Kittu Kolluri | Director | Aug 28, 2026 |
| Anthony Pagano | Director | Jun 12, 2026 |
| Akshay Rai | Director | Jun 12, 2026 |
| David Tsao | Chief Technology Officer | Sep 28, 2026 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Oguzhan Atay | Chairman and CEO | Sep 30, 2026 |
| Nancy Joann Johnson | See Remarks | Jul 20, 2026 |
| John Lister | Chief Administrative Officer | Nov 12, 2025 |
| Thomas P. Lynch | See Remarks | Sep 21, 2026 |
| Shan Riku Sakakibara | Chief Product Officer | Sep 14, 2026 |
| Ross Taylor | Chief Financial Officer | Nov 12, 2025 |
| David Tsao | Chief Technology Officer | Sep 28, 2026 |
| Bosch John Roderick Ten | SVP of Laboratory Operations | Sep 28, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Sep 28, 2026 | Oguzhan Atay | Sale | 2,666 | $120.64 |
| Sep 28, 2026 | Oguzhan Atay | Sale | 8,333 | $120.64 |
| Sep 24, 2026 | David Tsao | Sale | 3,333 | $125.00 |
| Sep 24, 2026 | Bosch John Roderick Ten | Sale | 1,416 | $120.00 |
| Sep 21, 2026 | Bosch John Roderick Ten | Sale | 1,416 | $106.61 |
| Sep 17, 2026 | Thomas P. Lynch | Sale | 2,920 | $110.31 |
| Sep 17, 2026 | Thomas P. Lynch | Sale | 5,840 | $110.29 |
| Sep 17, 2026 | Thomas P. Lynch | Sale | 6,968 | $110.30 |
| Sep 17, 2026 | Thomas P. Lynch | Sale | 19,384 | $110.36 |
| Sep 14, 2026 | Oguzhan Atay | Sale | 2,010 | $100.78 |
| Sep 14, 2026 | Oguzhan Atay | Sale | 3,143 | $101.49 |
| Sep 14, 2026 | Oguzhan Atay | Sale | 2,666 | $98.00 |
| Sep 14, 2026 | Oguzhan Atay | Sale | 2,666 | $98.00 |
| Sep 14, 2026 | Oguzhan Atay | Sale | 1,500 | $99.57 |
| Sep 14, 2026 | Oguzhan Atay | Sale | 4,465 | $98.63 |
BLLN financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2025 | $305.11M | $7.45M | 0.14 | $24.59M |
| Dec 31, 2024 | $152.58M | $-41.57M | -4.12 | $-41.38M |
| Dec 31, 2023 | $71.73M | $-82.68M | -8.45 | $-53.67M |
Latest balance sheet: total assets $729.70M, total liabilities $192.89M, cash $548.63M (as of Jun 30, 2026).
BLLN earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Aug 5, 2026 | 8-K Item 2.02 (results) | $149.97 |
| May 6, 2026 | 8-K Item 2.02 (results) | $81.40 |
| Mar 4, 2026 | 8-K Item 2.02 (results) | $80.83 |
| Jan 12, 2026 | 8-K Item 2.02 (results) | $99.15 |
| Dec 9, 2025 | 8-K Item 2.02 (results) | $109.53 |
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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 15, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.