Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| BillionToOne, Inc.BLLN · Entity 3992 | Chief Financial Officer | November 07, 2025 | November 12, 2025 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
BillionToOne, Inc.
Report date November 07, 2025 · Filed November 12, 2025
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $11.55 · Expires 2034-01-13 | Direct | 0 |
Reported balance
After 2025-11-07 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2025-11-07 · Other · Disposed 175,000 · Balance 0 F1: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock. F2: The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. Twenty-five percent of the options vested on January 8, 2025. The remaining 75% vest and become exercisable in equal monthly installments over the following three years, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. |
| Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $11.55 · Expires 2034-01-13 | Direct | 175,000 |
Reported balance
After 2025-11-07 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2025-11-07 · Other · Acquired 175,000 · Balance 175,000 F1: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock. F2: The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. Twenty-five percent of the options vested on January 8, 2025. The remaining 75% vest and become exercisable in equal monthly installments over the following three years, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. |
| Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $30.78 · Expires 2035-09-30 | Direct | 0 |
Reported balance
After 2025-11-07 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2025-11-07 · Other · Disposed 75,000 · Balance 0 F1: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock. F3: The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. The options vest and become exercisable in equal monthly installments commencing on September 15, 2025, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. |
| Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $30.78 · Expires 2035-09-30 | Direct | 75,000 |
Reported balance
After 2025-11-07 transaction · row 4
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 4 · 2025-11-07 · Other · Acquired 75,000 · Balance 75,000 F1: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock. F3: The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. The options vest and become exercisable in equal monthly installments commencing on September 15, 2025, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. |
Filing footnotes · ownership attribution and instrument terms
F1: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock.
F2: The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. Twenty-five percent of the options vested on January 8, 2025. The remaining 75% vest and become exercisable in equal monthly installments over the following three years, subject to the Reporting Person's continuous service with the Issuer through each such vesting date.
F3: The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. The options vest and become exercisable in equal monthly installments commencing on September 15, 2025, subject to the Reporting Person's continuous service with the Issuer through each such vesting date.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
QT IMAGING HOLDINGS, INC.
Report date July 28, 2026 · Filed August 27, 2026
Section 16 reporting ended · disclosed 2026-08-27. Current position is not established by this disclosure.
No balance rows disclosed in this filing.
Transaction history
JSON APIPurchases/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 date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| March 20, 2026 Filed Mar 25, 2026 01:44 UTC | QT IMAGING HOLDINGS, INC. QTI · Entity 7298 | GrantCommon Stock | 3,500 | $0.00 | $0.00 |
DisclosureSEC source: 0002013346-26-000002 · form4.xml · nonDerivative · entry 2 Taylor Ross · CIK 0002013346 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 60,578 F2 · shares: Subject to the Reporting Person's continued service to QT Imaging Holdings, Inc. (the "Company"), twenty-five percent of the Restricted Stock Unit ("RSU") will vest on each of May 15, 2026, August 15, 2026, November 15, 2026, and February 15, 2027; all RSUs shall immediately vest in the event of a Change of Control (as defined in the QT Imaging Holdings, Inc. 2024 Equity Incentive Plan) of the Company. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:11 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherStock Option (right to buy) · Derivative | 75,000 | Not disclosed Strike: $30.78 | Not disclosed |
DisclosureSEC source: 0001193125-25-278132 · ownership.xml · derivative · entry 4 Taylor Ross · CIK 0002013346 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 75,000 Underlying: Class A Common Stock · 75,000 shares Expires 2035-09-30 F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock. F1 · price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock. F3 · derivative.exercise_date: The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. The options vest and become exercisable in equal monthly installments commencing on September 15, 2025, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:11 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherStock Option (right to buy) · Derivative | 75,000 | Not disclosed Strike: $30.78 | Not disclosed |
DisclosureSEC source: 0001193125-25-278132 · ownership.xml · derivative · entry 3 Taylor Ross · CIK 0002013346 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 75,000 shares Expires 2035-09-30 F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock. F1 · price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock. F3 · derivative.exercise_date: The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. The options vest and become exercisable in equal monthly installments commencing on September 15, 2025, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:11 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherStock Option (right to buy) · Derivative | 175,000 | Not disclosed Strike: $11.55 | Not disclosed |
DisclosureSEC source: 0001193125-25-278132 · ownership.xml · derivative · entry 2 Taylor Ross · CIK 0002013346 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 175,000 Underlying: Class A Common Stock · 175,000 shares Expires 2034-01-13 F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock. F1 · price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock. F2 · derivative.exercise_date: The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. Twenty-five percent of the options vested on January 8, 2025. The remaining 75% vest and become exercisable in equal monthly installments over the following three years, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:11 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherStock Option (right to buy) · Derivative | 175,000 | Not disclosed Strike: $11.55 | Not disclosed |
DisclosureSEC source: 0001193125-25-278132 · ownership.xml · derivative · entry 1 Taylor Ross · CIK 0002013346 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 175,000 shares Expires 2034-01-13 F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock. F1 · price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock. F2 · derivative.exercise_date: The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. Twenty-five percent of the options vested on January 8, 2025. The remaining 75% vest and become exercisable in equal monthly installments over the following three years, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. Read SEC document |
| August 11, 2025 Filed Aug 14, 2025 01:13 UTC | QT IMAGING HOLDINGS, INC. QTIH · Entity 7298 | GrantStock Option (right to buy) · Derivative | 25,000 | $0.00 Strike: $1.90 | $0.00 |
DisclosureSEC source: 0001062993-25-014345 · form4.xml · derivative · entry 1 Taylor Ross · CIK 0002013346 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,000 Underlying: Common Stock · 25,000 shares Expires 2035-08-11 F1 · derivative.exercise_date: One-third of the grant will vest on August 15, 2026, and the remaining two-thirds will vest in eight equal quarterly installments on each subsequent November 15, February 15, May 15, and August 15, such that the grant will be fully vested on August 15, 2028, subject to continued service with the Issuer through each vesting date. Read SEC document |
| April 21, 2025 Filed Apr 23, 2025 21:38 UTC | QT IMAGING HOLDINGS, INC. QTIH · Entity 7298 | GrantStock Option (right to buy) · Derivative | 85,000 | $0.00 Strike: $0.67 | $0.00 |
DisclosureSEC source: 0001062993-25-007844 · form4.xml · derivative · entry 1 Taylor Ross · CIK 0002013346 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 85,000 Underlying: Common Stock · 85,000 shares Expires 2035-04-21 F1 · derivative.exercise_date: The grant will vest in four equal quarterly installments beginning on May 15, 2025, and continuing on August 15, 2025, November 15, 2025 and February 15, 2026, such that the grant will be fully vested on February 15, 2026, subject to continued service with the Issuer through each vesting date. Read SEC document |
| November 12, 2024 Filed Nov 15, 2024 02:01 UTC | QT IMAGING HOLDINGS, INC. QTI · Entity 7298 | PurchaseSubscription Warrant (right to buy) · Derivative | 171,232 | $0.00 Strike: $0.67 | $0.00 |
DisclosureSEC source: 0001062993-24-019199 · form4.xml · derivative · entry 2 Taylor Ross · CIK 0002013346 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 171,232 Underlying: Common Stock · 171,232 shares Expires 2030-05-12 Read SEC document |
| November 12, 2024 Filed Nov 15, 2024 02:01 UTC | QT IMAGING HOLDINGS, INC. QTI · Entity 7298 | PurchaseCommon Stock | 171,232 | $0.58 | $99,999.49 |
DisclosureSEC source: 0001062993-24-019199 · form4.xml · nonDerivative · entry 1 Taylor Ross · CIK 0002013346 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 171,232 Read SEC document |
| July 03, 2024 Filed Jul 10, 2024 01:15 UTC | QT IMAGING HOLDINGS, INC. QTI · Entity 7298 | GrantStock Option (right to buy) · Derivative | 40,000 | $0.00 Strike: $0.75 | $0.00 |
DisclosureSEC source: 0001062993-24-013613 · form4.xml · derivative · entry 1 Taylor Ross · CIK 0002013346 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 40,000 Underlying: Common Stock · 40,000 shares Expires 2034-07-03 F1 · derivative.exercise_date: One-third of the option will vest on February 15, 2025, and the remaining two thirds will vest in eight equal quarterly installments on each subsequent May 15, August 15, November 15 and February 15, such that the option will be fully vested on February 15, 2027, subject to the Reporting Person's continued service to the Issuer, through each vesting date. 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.