person · Reporting owner
Sornsin William Carrier Jr
Disclosed activity across 2 companies
Sign in to followReported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| RTB Digital, Inc.RTB · Entity 6387 | Chief Operating Officer | May 21, 2026 | June 08, 2026 |
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.
RTB Digital, Inc.
Report date May 21, 2026 · Filed June 08, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common stock, par value $0.001SEC Table I · non-derivative | Direct | 127,314 |
Reported balance
Holding disclosure · report date 2026-05-21 · row 1
Holding and transaction disclosures are not merged.
1 source rowRow 1 · Balance 127,314 |
| Stock OptionsSEC Table II · derivative / convertible security · Conversion / exercise price $0.94 · Expires 2034-05-15 | Direct | Not disclosed |
Reported balance
Holding disclosure · report date 2026-05-21 · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · Balance Not disclosed F1: Represents a stock option originally granted by RTB Digital, Inc. on May 15, 2024, which was assumed by the Issuer in connection with the business combination between the Issuer and RTB Digital, Inc. Following the transaction, the option became exercisable for shares of the Issuer's common stock on substantially the same terms as in effect immediately prior to the transaction, with appropriate adjustments to the number of underlying shares and exercise price, and continues to vest in accordance with its original vesting schedule, subject to the Reporting Person's continued service with the Issuer. |
| Stock OptionsSEC Table II · derivative / convertible security · Conversion / exercise price $1.89 · Expires 2035-08-12 | Direct | Not disclosed |
Reported balance
Holding disclosure · report date 2026-05-21 · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · Balance Not disclosed F2: Represents a stock option originally granted by RTB Digital, Inc. on August 12, 2025, which was assumed by the Issuer in connection with the business combination between the Issuer and RTB Digital, Inc. Following the transaction, the option became exercisable for shares of the Issuer's common stock on substantially the same terms as in effect immediately prior to the transaction, with appropriate adjustments to the number of underlying shares and exercise price, and continues to vest in accordance with its original vesting schedule, subject to the Reporting Person's continued service with the Issuer. |
Filing footnotes · ownership attribution and instrument terms
F1: Represents a stock option originally granted by RTB Digital, Inc. on May 15, 2024, which was assumed by the Issuer in connection with the business combination between the Issuer and RTB Digital, Inc. Following the transaction, the option became exercisable for shares of the Issuer's common stock on substantially the same terms as in effect immediately prior to the transaction, with appropriate adjustments to the number of underlying shares and exercise price, and continues to vest in accordance with its original vesting schedule, subject to the Reporting Person's continued service with the Issuer.
F2: Represents a stock option originally granted by RTB Digital, Inc. on August 12, 2025, which was assumed by the Issuer in connection with the business combination between the Issuer and RTB Digital, Inc. Following the transaction, the option became exercisable for shares of the Issuer's common stock on substantially the same terms as in effect immediately prior to the transaction, with appropriate adjustments to the number of underlying shares and exercise price, and continues to vest in accordance with its original vesting schedule, subject to the Reporting Person's continued service with the Issuer.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
Paradium.AI, Inc.
Report date April 10, 2019 · Filed December 29, 2020
Section 16 reporting ended · disclosed 2020-12-29. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Options to purchaseSEC Table II · derivative / convertible security · Conversion / exercise price $0.46 · Expires 2029-04-10 | Direct | 314,366 |
Reported balance
After 2019-04-10 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2019-04-10 · Grant · Acquired 314,366 · Balance 314,366 F1: Vesting is a combined overlay of Time-based, Stock-Price-based, and Stock-Listing-based conditions. Time-based vesting is 1/3 vest after 1 year, with the balance monthly over next 2 years. Stock-Price vesting is a potential downward adjustment to the otherwise Time-based vested shares, where such adjustment is based on the rolling 45-day Volume Weighted Average Price set against specific price targets. Stock Listing vesting means that no otherwise Time-based and Stock Price-based vested shares are actually deemed as vested unless the Issuer's common stock is listed on a national securities exchange registered with the Securities and Exchange Commission under Section 6 of the Securities Exchange Act of 1934. F2: The ability to exercise is subject to both: i) vesting conditions (2) and ii) the Issuer's Board of Directors approving a requisite increase in authorized shares of common stock, after the date the grant was issued, that would apply to this grant. |
Filing footnotes · ownership attribution and instrument terms
F1: Vesting is a combined overlay of Time-based, Stock-Price-based, and Stock-Listing-based conditions. Time-based vesting is 1/3 vest after 1 year, with the balance monthly over next 2 years. Stock-Price vesting is a potential downward adjustment to the otherwise Time-based vested shares, where such adjustment is based on the rolling 45-day Volume Weighted Average Price set against specific price targets. Stock Listing vesting means that no otherwise Time-based and Stock Price-based vested shares are actually deemed as vested unless the Issuer's common stock is listed on a national securities exchange registered with the Securities and Exchange Commission under Section 6 of the Securities Exchange Act of 1934.
F2: The ability to exercise is subject to both: i) vesting conditions (2) and ii) the Issuer's Board of Directors approving a requisite increase in authorized shares of common stock, after the date the grant was issued, that would apply to this grant.
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 |
|---|---|---|---|---|---|---|
| April 10, 2019 Filed Dec 29, 2020 22:43 UTC | Paradium.AI, Inc. MVEN · Entity 7275 | GrantOptions to purchase · Derivative | 314,366 | $0.00 Strike: $0.46 | $0.00 |
DisclosureSEC source: 0001493152-20-024485 · ownership.xml · derivative · entry 1 Sornsin William Carrier Jr · CIK 0001688943 · Former COO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 314,366 Underlying: Common Stock · 314,366 shares Expires 2029-04-10 F1 · shares: Vesting is a combined overlay of Time-based, Stock-Price-based, and Stock-Listing-based conditions. Time-based vesting is 1/3 vest after 1 year, with the balance monthly over next 2 years. Stock-Price vesting is a potential downward adjustment to the otherwise Time-based vested shares, where such adjustment is based on the rolling 45-day Volume Weighted Average Price set against specific price targets. Stock Listing vesting means that no otherwise Time-based and Stock Price-based vested shares are actually deemed as vested unless the Issuer's common stock is listed on a national securities exchange registered with the Securities and Exchange Commission under Section 6 of the Securities Exchange Act of 1934. F2 · derivative.exercise_date: The ability to exercise is subject to both: i) vesting conditions (2) and ii) the Issuer's Board of Directors approving a requisite increase in authorized shares of common stock, after the date the grant was issued, that would apply to this grant. 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.