James C. Heckman - 21 May 2026 Form 3 Insider Report for RTB Digital, Inc. (RTB)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: RTB
Reported as of: 21 May 2026
Net transaction value: $0
SEC form: 3
Accepted by SEC: 15 Jun 2026, 16:47:22 UTC
Prior SEC filing: 30 Jan 2024
Source filing: View source filing
Reporting owner signature: /s/ James C. Heckman

Filing notes and source

Key filing fact

James C. Heckman filed Form 3 for RTB Digital, Inc. (RTB) on 15 Jun 2026.

Key facts

This page summarizes James C. Heckman's Form 3 filing for RTB Digital, Inc. (RTB).
0 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 15 Jun 2026, 16:47.

Change

Previous filing in this sequence was filed on 30 Jan 2024.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Official SEC source

Ownership activity is grounded in SEC Form 3 disclosures.

View source filing

Reporting Owners (1)

CIK 0001689074 Primary reporting owner

Heckman James Charles Jr

Relationship: Chief Executive Officer, Director
Address: 3111 CAMINO DEL RIO NORTH, SUITE 400, SAN DIEGO
Signature: /s/ James C. Heckman
Signature date: 13 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

RTB holding

Common stock, par value $0.001

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 259,933
Date: 21 May 2026
Ownership: By Heckman Media, LLC
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

RTB holding Derivative

Stock Options

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 21 May 2026
Ownership: Heckman Media, LLC
Underlying class: Common Stock, par value $0.001
Underlying amount: 375,046
Exercise price: $0.9400
Footnotes: F2

RTB holding Derivative

Stock Options

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 21 May 2026
Ownership: Heckman Media, LLC
Underlying class: Common Stock, par value $0.001
Underlying amount: 240,305
Exercise price: $1.89
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

As controlling member of Heckman Media, LLC, Mr. Heckman has influence over Heckman Media, LLC's entire holding of 259,933 shares of Common Stock and has beneficial ownership thereof.

Footnote F2

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. As a controlling member of Heckman Media, LLC, Mr. Heckman may be deemed to have beneficial ownership over Heckman Media LLC's interest in this stock option. 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.

Footnote F3

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. As a controlling member of Heckman Media, LLC, Mr. Heckman may be deemed to have beneficial ownership over Heckman Media LLC's interest in this stock option. 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.