Atay Oguzhan 4
4 · BillionToOne, Inc. · Filed Jul 8, 2026
Research Summary
AI-generated summary of this filing
BillionToOne CEO Atay Oguzhan Sells Shares After Option Exercise
What Happened
Atay Oguzhan, BillionToOne's Chairman and CEO, exercised 26,250 stock options at $2.80 per share (total exercise cost $73,500) and sold a total of 65,000 shares in multiple open-market transactions on July 6, 2026. The open-market sales were transacted at prices roughly in the $118.05–$124.74 range (reported as various weighted averages) and generated approximately $4.80 million in proceeds. Most activity was sales (routine monetization) rather than a fresh purchase.
Key Details
- Transaction date: July 6, 2026; Form 4 filed July 8, 2026 (filed within the normal 2-business-day window).
- Options exercised: 26,250 shares at $2.80 (fully vested/exercisable per filing). Total exercise cost shown $73,500.
- Shares sold: 65,000 shares across many trades; reported proceeds ≈ $4,802,880. Sale prices reported as weighted averages with detailed price ranges in filing footnotes (approx. $118.05–$124.74).
- Footnotes: Sales were effected under a Rule 10b5‑1 trading plan adopted March 6, 2026 (F1). Several weighted‑average price footnotes (F2–F15) note the exact per‑trade price ranges; F10 indicates some shares are held by the reporting person’s spouse; F16 notes options are fully vested.
- Shares owned after transaction: not specified in the data provided in your summary.
Context
- Derivative explanation: the "M" code indicates option exercise/conversion. Here Oguzhan exercised options and the resulting shares were sold the same day under the trading plan (typical for cashless/monetization transactions).
- A prearranged 10b5‑1 plan reduces timing concerns but does not indicate the insider’s current view of the company; it documents that trades followed a preset plan.
- This filing reflects significant liquidity taken by the CEO but is routine when done under a documented trading plan; do not infer company fundamentals solely from this sale.
Insider Transaction Report
Form 4
Atay Oguzhan
DirectorChairman and CEO
Transactions
- Exercise/Conversion
Class A Common Stock
[F1]2026-07-06$2.80/sh+20,000$56,000→ 20,000 total - Exercise/Conversion
Class A Common Stock
[F1]2026-07-06$2.80/sh+6,250$17,500→ 26,250 total - Sale
Class A Common Stock
[F1][F2]2026-07-06$118.49/sh−1,320$156,402→ 24,930 total - Sale
Class A Common Stock
[F1][F3]2026-07-06$119.36/sh−3,639$434,369→ 21,291 total - Sale
Class A Common Stock
[F1][F4]2026-07-06$120.66/sh−1,828$220,567→ 19,463 total - Sale
Class A Common Stock
[F1][F5]2026-07-06$121.84/sh−1,115$135,848→ 18,348 total - Sale
Class A Common Stock
[F1][F6]2026-07-06$123.07/sh−6,223$765,873→ 12,125 total - Sale
Class A Common Stock
[F1][F7]2026-07-06$123.81/sh−5,253$650,371→ 6,872 total - Sale
Class A Common Stock
[F1][F8]2026-07-06$124.61/sh−622$77,510→ 6,250 total - Sale
Class A Common Stock
[F1][F2]2026-07-06$118.49/sh−412$48,817→ 5,838 total - Sale
Class A Common Stock
[F1][F3]2026-07-06$119.36/sh−1,138$135,837→ 4,700 total - Sale
Class A Common Stock
[F1][F4]2026-07-06$120.66/sh−570$68,776→ 4,130 total - Sale
Class A Common Stock
[F1][F5]2026-07-06$121.84/sh−349$42,521→ 3,781 total - Sale
Class A Common Stock
[F1][F6]2026-07-06$123.07/sh−1,945$239,373→ 1,836 total - Sale
Class A Common Stock
[F1][F7]2026-07-06$123.81/sh−1,642$203,295→ 194 total - Sale
Class A Common Stock
[F1][F8]2026-07-06$124.61/sh−194$24,175→ 0 total - Sale
Class A Common Stock
[F1][F9][F10]2026-07-06$118.81/sh−1,034$122,847→ 186,466 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F11][F10]2026-07-06$119.67/sh−591$70,728→ 185,875 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F12][F10]2026-07-06$120.69/sh−444$53,585→ 185,431 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F13][F10]2026-07-06$122.08/sh−587$71,663→ 184,844 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F14][F10]2026-07-06$123.25/sh−2,323$286,303→ 182,521 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F15][F10]2026-07-06$124.04/sh−1,221$151,459→ 181,300 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F10]2026-07-06$124.74/sh−50$6,237→ 181,250 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F9][F10]2026-07-06$118.81/sh−1,034$122,847→ 180,216 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F11][F10]2026-07-06$119.67/sh−591$70,728→ 179,625 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F12][F10]2026-07-06$120.69/sh−444$53,585→ 179,181 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F13][F10]2026-07-06$122.08/sh−586$71,542→ 178,595 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F14][F10]2026-07-06$123.25/sh−2,324$286,426→ 176,271 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F15][F10]2026-07-06$124.04/sh−1,221$151,459→ 175,050 total(indirect: By Spouse) - Sale
Class A Common Stock
[F1][F10]2026-07-06$124.74/sh−50$6,237→ 175,000 total(indirect: By Spouse) - Exercise/Conversion
Stock Option (right to buy)
[F16]2026-07-06$2.80/sh−20,000$56,000→ 593,750 totalExercise: $2.80Exp: 2031-06-07→ Class A Common Stock (20,000 underlying) - Exercise/Conversion
Stock Option (right to buy)
[F16]2026-07-06$2.80/sh−6,250$17,500→ 587,500 totalExercise: $2.80Exp: 2031-06-07→ Class A Common Stock (6,250 underlying)
Footnotes (16)
- [F1]The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.
- [F10]Represents shares held by the Reporting Person's spouse.
- [F11]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $119.305 to $120.2725 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- [F12]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.380 to $121.020 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- [F13]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.555 to $122.490 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- [F14]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.725 to $123.720 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- [F15]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.740 to $124.735 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- [F16]The options are fully vested and exercisable.
- [F2]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $118.050 to $119.020 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- [F3]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $119.055 to $119.970 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- [F4]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.225 to $121.160 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- [F5]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.390 to $122.230 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- [F6]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.465 to $123.450 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- [F7]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.475 to $124.455 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- [F8]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $124.535 to $124.735 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- [F9]The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $118.250 to $119.240 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Signature
/s/ Thomas P. Lynch, Attorney-in-Fact|2026-07-08