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Nasdaq · USD

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BillionToOne, Inc.

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3992
SEC CIK
0002070849
Parsed reports
78

Last 12 months

Inside the activity.

11 purchase rows · 173 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 2025110
Dec 202500
Jan 202600
Feb 202600
Mar 202600
Apr 202600
May 202600
Jun 2026035
Jul 2026056
Aug 2026028
Sep 2026035
Oct 2026019

Latest available

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
October 12, 2026 Filed Oct 14, 2026 22:10 UTC
Atay OguzhanDirector · Chairman and CEO
Exercise / conversionStock Option (right to buy) · Derivative 16,667 $2.80 Strike: $2.80 $46,667.60
Disclosure

SEC source: 0002070849-26-000072 · wk-form4_1792015801.xml · derivative · entry 8

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 476,962

Underlying: Class A Common Stock · 16,667 shares

Expires 2031-06-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F9 · derivative.exercise_date: The options are fully vested and exercisable.

Read SEC document
October 12, 2026 Filed Oct 14, 2026 22:10 UTC
Atay OguzhanDirector · Chairman and CEO
SaleClass A Common Stock 2,667 $97.61 $260,325.87
Disclosure

SEC source: 0002070849-26-000072 · wk-form4_1792015801.xml · nonDerivative · entry 7

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By spouse

Disclosed balance after: 151,835

F7 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person's spouse on June 7, 2026.

F8 · ownership.nature: Represents shares held by the Reporting Person's spouse.

Read SEC document
October 12, 2026 Filed Oct 14, 2026 22:10 UTC
Atay OguzhanDirector · Chairman and CEO
SaleClass A Common Stock 1,521 $96.39 $146,612.84
Disclosure

SEC source: 0002070849-26-000072 · wk-form4_1792015801.xml · nonDerivative · entry 6

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F6 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.945 to $96.765 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.

Read SEC document
October 12, 2026 Filed Oct 14, 2026 22:10 UTC
Atay OguzhanDirector · Chairman and CEO
SaleClass A Common Stock 3,869 $94.61 $366,058.86
Disclosure

SEC source: 0002070849-26-000072 · wk-form4_1792015801.xml · nonDerivative · entry 5

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,521

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F5 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.265 to $95.205 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.

Read SEC document
October 12, 2026 Filed Oct 14, 2026 22:10 UTC
Atay OguzhanDirector · Chairman and CEO
SaleClass A Common Stock 6,763 $93.65 $633,334.66
Disclosure

SEC source: 0002070849-26-000072 · wk-form4_1792015801.xml · nonDerivative · entry 4

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,390

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.260 to $94.225 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.

Read SEC document
October 12, 2026 Filed Oct 14, 2026 22:10 UTC
Atay OguzhanDirector · Chairman and CEO
SaleClass A Common Stock 2,553 $93.05 $237,546.44
Disclosure

SEC source: 0002070849-26-000072 · wk-form4_1792015801.xml · nonDerivative · entry 3

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,153

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.2596 to $93.255 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.

Read SEC document
October 12, 2026 Filed Oct 14, 2026 22:10 UTC
Atay OguzhanDirector · Chairman and CEO
SaleClass A Common Stock 1,961 $91.57 $179,571.12
Disclosure

SEC source: 0002070849-26-000072 · wk-form4_1792015801.xml · nonDerivative · entry 2

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,706

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.250 to $92.170 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.

Read SEC document
October 12, 2026 Filed Oct 14, 2026 22:10 UTC
Atay OguzhanDirector · Chairman and CEO
Exercise / conversionClass A Common Stock 16,667 $2.80 $46,667.60
Disclosure

SEC source: 0002070849-26-000072 · wk-form4_1792015801.xml · nonDerivative · entry 1

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,667

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

Read SEC document
October 08, 2026 Filed Oct 13, 2026 22:39 UTC
Lynch Thomas P.See Remarks
Exercise / conversionStock Option (right to buy) · Derivative 8,000 $8.65 Strike: $8.65 $69,200.00
Disclosure

SEC source: 0002070849-26-000071 · wk-form4_1791931182.xml · derivative · entry 2

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,974

Underlying: Class A Common Stock · 8,000 shares

Expires 2033-01-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The options are fully vested and exercisable. The terms of the underlying option grant are as previously reported on the Reporting Person's Form 3 filed on November 5, 2025.

Read SEC document
October 08, 2026 Filed Oct 13, 2026 22:39 UTC
Lynch Thomas P.See Remarks
Exercise / conversionClass A Common Stock 8,000 $8.65 $69,200.00
Disclosure

SEC source: 0002070849-26-000071 · wk-form4_1791931182.xml · nonDerivative · entry 1

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,700

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
ten Bosch John RoderickSVP of Laboratory Operations
SaleClass A Common Stock 1,417 $105.15 $148,997.55
Disclosure

SEC source: 0002087126-26-000018 · wk-form4_1791417401.xml · nonDerivative · entry 2

ten Bosch John Roderick · CIK 0002087126 · SVP of Laboratory Operations

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,385

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 2, 2026.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
ten Bosch John RoderickSVP of Laboratory Operations
SaleClass A Common Stock 1,417 $105.15 $148,997.55
Disclosure

SEC source: 0002087126-26-000018 · wk-form4_1791417401.xml · nonDerivative · entry 1

ten Bosch John Roderick · CIK 0002087126 · SVP of Laboratory Operations

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,802

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 2, 2026.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
Exercise / conversionStock Option (right to buy) · Derivative 10,000 $2.80 Strike: $2.80 $28,000.00
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · derivative · entry 15

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 536,667

Underlying: Class A Common Stock · 10,000 shares

Expires 2031-06-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F11 · derivative.exercise_date: The options are fully vested and exercisable.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
Exercise / conversionStock Option (right to buy) · Derivative 10,000 $2.80 Strike: $2.80 $28,000.00
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · derivative · entry 14

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 546,667

Underlying: Class A Common Stock · 10,000 shares

Expires 2031-06-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F11 · derivative.exercise_date: The options are fully vested and exercisable.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
SaleClass A Common Stock 100 $110.09 $11,009.00
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 13

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,000

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
SaleClass A Common Stock 1,829 $109.14 $199,625.29
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 12

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,100

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F10 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $109.040 to $109.500 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.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
SaleClass A Common Stock 4,916 $108.53 $533,554.13
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 11

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,929

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F9 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $108.040 to $109.030 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.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
SaleClass A Common Stock 2,200 $107.47 $236,435.10
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 10

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,845

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F8 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $107.010 to $107.970 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.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
SaleClass A Common Stock 400 $106.10 $42,441.52
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 9

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,045

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F7 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $105.890 to $106.180 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.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
SaleClass A Common Stock 555 $105.56 $58,585.08
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 8

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,445

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F6 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $104.880 to $105.720 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.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
SaleClass A Common Stock 20 $110.08 $2,201.60
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 7

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,000

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
SaleClass A Common Stock 2,921 $109.00 $318,398.06
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 6

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,020

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F5 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $108.740 to $109.480 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.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
SaleClass A Common Stock 4,284 $108.39 $464,355.61
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 5

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,941

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $107.7354 to $108.710 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.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
SaleClass A Common Stock 1,909 $107.20 $204,635.26
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 4

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,225

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $106.730 to $107.700 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.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
SaleClass A Common Stock 866 $105.90 $91,709.75
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 3

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,134

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $105.505 to $106.350 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.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
Exercise / conversionClass A Common Stock 10,000 $2.80 $28,000.00
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 2

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:56 UTC
Tsao DavidDirector · Chief Technology Officer
Exercise / conversionClass A Common Stock 10,000 $2.80 $28,000.00
Disclosure

SEC source: 0002087127-26-000015 · wk-form4_1791417392.xml · nonDerivative · entry 1

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:33 UTC
Atay OguzhanDirector · Chairman and CEO
Exercise / conversionStock Option (right to buy) · Derivative 8,333 $2.80 Strike: $2.80 $23,332.40
Disclosure

SEC source: 0002088549-26-000012 · wk-form4_1790814780.xml · derivative · entry 4

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 493,629

Underlying: Class A Common Stock · 8,333 shares

Expires 2031-06-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The options are fully vested and exercisable.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:33 UTC
Atay OguzhanDirector · Chairman and CEO
SaleClass A Common Stock 2,666 $120.64 $321,626.24
Disclosure

SEC source: 0002088549-26-000012 · wk-form4_1790814780.xml · nonDerivative · entry 3

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By spouse

Disclosed balance after: 154,502

F2 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person's spouse on June 7, 2026.

F3 · ownership.nature: Represents shares held by the Reporting Person's spouse.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:33 UTC
Atay OguzhanDirector · Chairman and CEO
SaleClass A Common Stock 8,333 $120.64 $1,005,293.12
Disclosure

SEC source: 0002088549-26-000012 · wk-form4_1790814780.xml · nonDerivative · entry 2

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:33 UTC
Atay OguzhanDirector · Chairman and CEO
Exercise / conversionClass A Common Stock 8,333 $2.80 $23,332.40
Disclosure

SEC source: 0002088549-26-000012 · wk-form4_1790814780.xml · nonDerivative · entry 1

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,333

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

Read SEC document
September 24, 2026 Filed Sep 28, 2026 21:57 UTC
Tsao DavidDirector · Chief Technology Officer
Exercise / conversionStock Option (right to buy) · Derivative 3,333 $2.80 Strike: $2.80 $9,332.40
Disclosure

SEC source: 0002087127-26-000013 · wk-form4_1790632623.xml · derivative · entry 3

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 556,667

Underlying: Class A Common Stock · 3,333 shares

Expires 2031-06-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The options are fully vested and exercisable.

Read SEC document
September 24, 2026 Filed Sep 28, 2026 21:57 UTC
Tsao DavidDirector · Chief Technology Officer
SaleClass A Common Stock 3,333 $125.00 $416,625.00
Disclosure

SEC source: 0002087127-26-000013 · wk-form4_1790632623.xml · nonDerivative · entry 2

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,000

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

Read SEC document
September 24, 2026 Filed Sep 28, 2026 21:57 UTC
Tsao DavidDirector · Chief Technology Officer
Exercise / conversionClass A Common Stock 3,333 $2.80 $9,332.40
Disclosure

SEC source: 0002087127-26-000013 · wk-form4_1790632623.xml · nonDerivative · entry 1

Tsao David · CIK 0002087127 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,333

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

Read SEC document
September 24, 2026 Filed Sep 28, 2026 21:56 UTC
ten Bosch John RoderickSVP of Laboratory Operations
SaleClass A Common Stock 1,416 $120.00 $169,920.00
Disclosure

SEC source: 0002087126-26-000015 · wk-form4_1790632614.xml · nonDerivative · entry 1

ten Bosch John Roderick · CIK 0002087126 · SVP of Laboratory Operations

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,219

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 2, 2026.

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September 21, 2026 Filed Sep 23, 2026 21:50 UTC
ten Bosch John RoderickSVP of Laboratory Operations
SaleClass A Common Stock 1,416 $106.61 $150,959.76
Disclosure

SEC source: 0002087126-26-000013 · wk-form4_1790200246.xml · nonDerivative · entry 1

ten Bosch John Roderick · CIK 0002087126 · SVP of Laboratory Operations

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,635

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 2, 2026.

Read SEC document
September 17, 2026 Filed Sep 21, 2026 23:00 UTC
Lynch Thomas P.See Remarks
Exercise / conversionStock Option (right to buy) · Derivative 5,840 $30.78 Strike: $30.78 $179,755.20
Disclosure

SEC source: 0002070849-26-000069 · wk-form4_1790031608.xml · derivative · entry 12

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,834

Underlying: Class A Common Stock · 5,840 shares

Expires 2035-09-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The options are fully vested and exercisable. The terms of the underlying option grant are as previously reported on the Reporting Person's Form 3 filed on November 5, 2025.

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September 17, 2026 Filed Sep 21, 2026 23:00 UTC
Lynch Thomas P.See Remarks
Exercise / conversionStock Option (right to buy) · Derivative 2,920 $17.12 Strike: $17.12 $49,990.40
Disclosure

SEC source: 0002070849-26-000069 · wk-form4_1790031608.xml · derivative · entry 11

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,417

Underlying: Class A Common Stock · 2,920 shares

Expires 2034-10-16

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The options are fully vested and exercisable. The terms of the underlying option grant are as previously reported on the Reporting Person's Form 3 filed on November 5, 2025.

Read SEC document
September 17, 2026 Filed Sep 21, 2026 23:00 UTC
Lynch Thomas P.See Remarks
Exercise / conversionStock Option (right to buy) · Derivative 6,968 $11.55 Strike: $11.55 $80,480.40
Disclosure

SEC source: 0002070849-26-000069 · wk-form4_1790031608.xml · derivative · entry 10

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,063

Underlying: Class A Common Stock · 6,968 shares

Expires 2033-10-17

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The options are fully vested and exercisable. The terms of the underlying option grant are as previously reported on the Reporting Person's Form 3 filed on November 5, 2025.

Read SEC document
September 17, 2026 Filed Sep 21, 2026 23:00 UTC
Lynch Thomas P.See Remarks
Exercise / conversionStock Option (right to buy) · Derivative 19,384 $8.65 Strike: $8.65 $167,671.60
Disclosure

SEC source: 0002070849-26-000069 · wk-form4_1790031608.xml · derivative · entry 9

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 48,974

Underlying: Class A Common Stock · 19,384 shares

Expires 2033-01-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The options are fully vested and exercisable. The terms of the underlying option grant are as previously reported on the Reporting Person's Form 3 filed on November 5, 2025.

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September 17, 2026 Filed Sep 21, 2026 23:00 UTC
Lynch Thomas P.See Remarks
SaleClass A Common Stock 5,840 $110.29 $644,111.70
Disclosure

SEC source: 0002070849-26-000069 · wk-form4_1790031608.xml · nonDerivative · entry 8

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 700

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 8, 2026.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $110.000 to $110.970 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.

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September 17, 2026 Filed Sep 21, 2026 23:00 UTC
Lynch Thomas P.See Remarks
SaleClass A Common Stock 2,920 $110.31 $322,100.24
Disclosure

SEC source: 0002070849-26-000069 · wk-form4_1790031608.xml · nonDerivative · entry 7

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,540

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 8, 2026.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $110.000 to $110.890 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.

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September 17, 2026 Filed Sep 21, 2026 23:00 UTC
Lynch Thomas P.See Remarks
SaleClass A Common Stock 6,968 $110.30 $768,560.64
Disclosure

SEC source: 0002070849-26-000069 · wk-form4_1790031608.xml · nonDerivative · entry 6

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,460

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 8, 2026.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $110.000 to $110.890 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.

Read SEC document
September 17, 2026 Filed Sep 21, 2026 23:00 UTC
Lynch Thomas P.See Remarks
SaleClass A Common Stock 19,384 $110.36 $2,139,193.04
Disclosure

SEC source: 0002070849-26-000069 · wk-form4_1790031608.xml · nonDerivative · entry 5

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,428

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 8, 2026.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $110.000 to $110.970 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.

Read SEC document
September 17, 2026 Filed Sep 21, 2026 23:00 UTC
Lynch Thomas P.See Remarks
Exercise / conversionClass A Common Stock 5,840 $30.78 $179,755.20
Disclosure

SEC source: 0002070849-26-000069 · wk-form4_1790031608.xml · nonDerivative · entry 4

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,812

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 8, 2026.

Read SEC document
September 17, 2026 Filed Sep 21, 2026 23:00 UTC
Lynch Thomas P.See Remarks
Exercise / conversionClass A Common Stock 2,920 $17.12 $49,990.40
Disclosure

SEC source: 0002070849-26-000069 · wk-form4_1790031608.xml · nonDerivative · entry 3

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 29,972

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 8, 2026.

Read SEC document
September 17, 2026 Filed Sep 21, 2026 23:00 UTC
Lynch Thomas P.See Remarks
Exercise / conversionClass A Common Stock 6,968 $11.55 $80,480.40
Disclosure

SEC source: 0002070849-26-000069 · wk-form4_1790031608.xml · nonDerivative · entry 2

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 27,052

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 8, 2026.

Read SEC document
September 17, 2026 Filed Sep 21, 2026 23:00 UTC
Lynch Thomas P.See Remarks
Exercise / conversionClass A Common Stock 19,384 $8.65 $167,671.60
Disclosure

SEC source: 0002070849-26-000069 · wk-form4_1790031608.xml · nonDerivative · entry 1

Lynch Thomas P. · CIK 0001659824 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,084

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 8, 2026.

Read SEC document
September 14, 2026 Filed Sep 16, 2026 22:43 UTC
Atay OguzhanDirector · Chairman and CEO
Exercise / conversionStock Option (right to buy) · Derivative 8,333 $2.80 Strike: $2.80 $23,332.40
Disclosure

SEC source: 0002088549-26-000010 · wk-form4_1789598628.xml · derivative · entry 14

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 501,962

Underlying: Class A Common Stock · 8,333 shares

Expires 2031-06-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F12 · derivative.exercise_date: The options are fully vested and exercisable.

Read SEC document
September 14, 2026 Filed Sep 16, 2026 22:43 UTC
Atay OguzhanDirector · Chairman and CEO
Exercise / conversionStock Option (right to buy) · Derivative 16,666 $2.80 Strike: $2.80 $46,664.80
Disclosure

SEC source: 0002088549-26-000010 · wk-form4_1789598628.xml · derivative · entry 13

Atay Oguzhan · CIK 0002088549 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 510,295

Underlying: Class A Common Stock · 16,666 shares

Expires 2031-06-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F12 · derivative.exercise_date: The options are fully vested and exercisable.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.