Viant Technology Inc. Form 4 Filings

Abrahams Craig Justin reported acquisition or exercise transactions in this Form 4 filing.

Viant Technology Inc. director Craig Justin Abrahams reported two equity compensation grants of Class A common stock in the form of restricted stock units (RSUs). He received 28,389 RSUs on 2026-08-10 that vest in three equal annual installments over three years, subject to continuous service and the company’s Long-Term Incentive Plan. He also received 10,720 RSUs on the same date that vest in full at the 2027 Annual Meeting of Stockholders, again contingent on continued service. Each RSU represents one share of Class A common stock.

Viant Technology Inc. reported that Chief Financial Officer Larry Madden sold 2,814 shares of Class A Common Stock on July 23, 2026 at a weighted average price of $10.6857 per share, with trades between $10.58 and $10.81, pursuant to a Rule 10b5-1 trading plan adopted on December 15, 2025. Following this sale, he directly holds 425,822 shares.

Viant Technology Inc. CEO and Chairman Timothy Vanderhook, reporting indirect holdings through Capital V LLC, exchanged 12,500 Class B Units for 12,500 shares of Class A common stock on July 21, 2026, with a corresponding 12,500 shares of Class B common stock cancelled for no consideration. Between July 21 and 23, he reported sales totaling 12,500 Class A shares at weighted average prices of $11.7042, $11.0346 and $10.4704 per share, executed under a Rule 10b5-1 trading plan adopted on March 18, 2025 and amended on September 17, 2025. After these transactions, Capital V LLC held 9,069,775 Class B Units and an equal number of Class B common shares, with Vanderhook having an indirect pecuniary interest in one-third of those holdings.

Viant Technology Inc. reporting person Christopher Vanderhook, Chief Operating Officer and 10% owner, reported indirect transactions through Capital V LLC. On July 21, 2026, Capital V LLC redeemed 12,500 Class B Units for 12,500 Class A shares and an equal number of Class B common shares were cancelled for no consideration, leaving 9,069,775 Class B Units/Class B common indirectly held. On July 21–23, 2026, Capital V LLC sold a total of 12,500 Class A shares at weighted‑average prices of $11.7042, $11.0346, and $10.4704, respectively, in multiple transactions under a Rule 10b5‑1 trading plan adopted March 18, 2025 and amended September 17, 2025. Vanderhook holds a one‑third interest in Capital V LLC and may be deemed to have an indirect pecuniary interest in one‑third of its holdings.

Capital V LLC, a 10% owner of Viant Technology Inc., exchanged 37,500 Class B Units (and corresponding Class B common shares) for 37,500 Class A common shares, then sold 37,500 Class A shares on July 21–23, 2026 at weighted average prices between $10.17 and $12.03 under a Rule 10b5-1 trading plan adopted March 18, 2025 and amended September 17, 2025.

Viant Technology Inc. Chief Financial Officer Larry Madden reported open-market sales of Class A common stock across three days. He sold 10,097 shares on July 6, 9,149 shares on July 7, and 11,273 shares on July 8, 2026, at weighted average prices around $12.78 per share. After these transactions, he directly holds 428,636 shares. The sales were executed under a pre-arranged Rule 10b5-1 trading plan adopted on December 15, 2025.

Viant Technology Inc. director and Chief Operating Officer Christopher Vanderhook reported indirect transactions through Capital V LLC. Capital V LLC exchanged 12,500 Class B Units for 12,500 shares of Class A common stock, with the corresponding Class B common shares cancelled for no consideration.

Capital V LLC then sold 12,500 Class A shares in open-market transactions between June 16 and June 18, 2026 at weighted average prices of $11.1714, $11.0884, and $10.9646 per share, executed under a Rule 10b5-1 trading plan adopted on March 18, 2025 and amended on September 17, 2025. Following these trades, Capital V LLC continues to hold 9,082,275 Class B Units of Viant Technology LLC, which are exchangeable on a one-for-one basis into Class A common stock.

Viant Technology Inc. insider filing shows entity-level trades by Capital V LLC, an entity associated with CEO and Chairman Timothy Vanderhook. Capital V LLC sold a total of 12,500 shares of Class A common stock in open-market transactions on June 16–18, 2026, at weighted average prices around $11 per share.

On June 16, 2026, Capital V LLC also exchanged 12,500 Class B Units of Viant Technology LLC into 12,500 shares of Class A common stock and, in connection with that redemption, 12,500 shares of Class B common stock were cancelled for no consideration. After these transactions, Capital V LLC continued to hold 9,082,275 Class B Units, which are exchangeable on a one-for-one basis into Class A common shares. Vanderhook holds a one-third interest in Capital V LLC and thus an indirect pecuniary interest in one-third of its holdings. The sales were executed under a Rule 10b5-1 trading plan adopted and later amended by Capital V LLC.

Capital V LLC, a 10% owner of Viant Technology Inc., sold 37,500 shares of Class A common stock over three days in open-market transactions. The sales occurred on June 16–18, 2026 at weighted average prices between $10.665 and $11.50, under a pre-arranged Rule 10b5-1 trading plan adopted and later amended by Capital V LLC. On June 16, 2026, Capital V LLC also exchanged 37,500 Class B Units of Viant Technology LLC into an equal number of Class A shares and simultaneously disposed of 37,500 shares of Class B common stock back to the issuer for no consideration. After these transactions, Capital V LLC reported no Class A shares and continued to hold 27,246,826 Class B Units and corresponding Class B common stock.

Viant Technology Inc.’s Chief Financial Officer Larry Madden reported an open-market sale of 25,376 shares of Class A common stock at $11.10 per share. According to the disclosure, the transaction was initiated by the company to cover estimated taxes from the vesting and settlement of restricted stock units. Following this tax-related sale, Madden directly holds 459,155 shares.

Viant Technology Inc. Chief Operating Officer Christopher Vanderhook reported an open-market sale of Class A Common Stock. He sold 9,125 shares at a price of $11.10 per share. After this transaction, he directly holds 293,880 shares of Viant Technology stock.

According to the footnote, the shares were sold in a transaction instituted by Viant on Vanderhook's behalf to cover estimated taxes related to the vesting and settlement of restricted stock units, indicating this was a tax-related, administrative sale rather than a discretionary portfolio move.

Viant Technology Inc. CEO and Chairman Timothy Vanderhook reported a sale of 9,125 shares of Class A Common Stock at $11.10 per share. According to the footnote, the shares were sold in a transaction instituted by the company on his behalf to cover estimated taxes tied to the vesting and settlement of restricted stock units, rather than as a discretionary portfolio move. Following this tax-related sale, he directly holds 208,880 shares.

Viant Technology Inc. CEO and Chairman Timothy Vanderhook reported a series of estate-planning transactions involving Class B Common Stock and Class B Units tied to Class A common stock. The filing shows grant or award acquisitions of 52,096 shares of Class B Common Stock and related Class B Units for each of four family gift trusts, alongside matching bona fide gifts of 52,096 shares and units from grantor retained annuity trusts (GRATs).

These transactions are non-cash gifts and awards, not open-market purchases or sales, and are attributed to family trusts and GRATs rather than discretionary trading. Vanderhook also reports large ongoing direct and indirect positions in Class B Units exchangeable one-for-one into Class A common stock, with corresponding Class B common shares cancelled upon exchange.

Yang Vivian reported acquisition or exercise transactions in this Form 4 filing.

Viant Technology Inc. director Vivian Yang reported an amended equity award. The filing corrects a prior report and now shows a grant of 14,544 restricted stock units of Class A common stock on June 4, 2026. These RSUs vest in full on the earlier of the company’s 2027 annual meeting or one year from the grant date, subject to continued service. After this grant, Yang directly holds 108,457 shares of Class A common stock.

Wilson Brett reported acquisition or exercise transactions in this Form 4 filing.

Viant Technology Inc. director Brett Wilson reported an amended grant of 14,544 restricted stock units (RSUs) of Class A common stock. The RSUs vest in full on the earlier of the company’s 2027 annual stockholders’ meeting or one year from the June 4, 2026 grant date, subject to continued service. Following this equity award, Wilson directly holds 50,463 shares of Class A common stock. The amendment corrects an earlier filing that had mistakenly reported a grant of 15,948 RSUs.

Viant Technology Inc. director Max O. Valdes reported selling a total of 6,686 shares of Class A Common Stock in open-market transactions. The sales occurred on June 8 and June 9, 2026, at weighted average prices around $12 per share. Following these transactions, Valdes directly holds 29,449 shares of Viant Technology Inc. stock. A footnote also corrects a prior Form 4, clarifying that an earlier grant involved 14,544 restricted stock units rather than the 15,948 units previously reported, and states that current reported holdings reflect this accurate amount.

Viant Technology Inc. director and COO Christopher Vanderhook reported estate-planning transfers involving Class B Common Stock and related Class B Units. Four family gift trusts each received 52,096 shares of Class B Common Stock and 52,096 Class B Units as grant or award acquisitions, matched by bona fide gifts of the same amounts from grantor retained annuity trusts (GRATs). In total, 416,768 shares/units moved via gifts, with no open-market buying or selling. Footnotes state Capital V LLC holds additional interests, with Class B Units exchangeable on a one-for-one basis into Class A Common Stock and the corresponding Class B Common Stock cancelled upon exchange.

Viant Technology Inc. Chief Financial Officer Larry Madden reported open-market sales of Class A Common Stock under a pre-arranged Rule 10b5-1 trading plan adopted on December 15, 2025. He sold 18,663 shares on June 5, 2026 at a weighted average price of $12.2426 and 14,670 shares on June 8, 2026 at a weighted average price of $12.0981, for a total of 33,333 shares sold.

After these transactions, Madden directly holds 484,531 shares of Viant Class A Common Stock. The filing notes that both transactions were executed through multiple trades within stated price ranges, with full trade details available on request.

Viant Technology Inc. director Vivian Yang received a grant of 15,948 restricted stock units of Class A common stock. The award was made at no cash cost to her and brings her direct holdings to 109,861 shares after the grant.

The restricted stock units vest in full on the earlier of the company’s 2027 Annual Meeting of Stockholders (or immediately before that meeting if her board service ends then) or the one-year anniversary of the grant date, in each case subject to her continuous service. Each unit will convert into one share of Class A common stock upon vesting.

Viant Technology Inc. reported that director Brett Wilson received a grant of 15,948 shares of Class A common stock as a restricted stock unit award at a stated price of $0.00 per share. Following this equity grant, he directly holds 51,867 Class A shares.

The restricted stock units vest in full on the earlier of the company’s 2027 Annual Meeting of Stockholders (or immediately before it if his board service ends at that meeting) or the one-year anniversary of the grant date, subject to his continuous service. Each unit converts into one share upon vesting, making this a standard, compensation-related equity award rather than an open‑market purchase or sale.

Viant Technology Inc. director Max O. Valdes received a grant of 15,948 shares of Class A common stock in the form of restricted stock units. These units were granted at no cash cost and increase his directly held shares to 37,539 after the transaction.

The restricted stock units vest in full on the earlier of the company’s 2027 Annual Meeting of Stockholders (or immediately before that meeting if his board service ends then) or one year from the grant date, subject to his continuous service. Each unit converts into one share of Class A common stock upon vesting.

Viant Technology Inc.’s Chief Operating Officer Christopher Vanderhook reported a series of indirect transactions through Capital V LLC. On May 19, 2026, Capital V LLC exercised 12,500 Class B Units of Viant Technology LLC into 12,500 shares of Class A common stock, with a corresponding 12,500-share cancellation of Class B common stock as a disposition to the issuer. On May 19, 20 and 21, Capital V LLC then sold an aggregate of 12,500 Class A shares in open‑market transactions at weighted average prices of $10.8872, $10.5956 and $10.7885 per share under a Rule 10b5‑1 trading plan. Following these trades, Capital V LLC held 9,094,775 Class B Units and an equal number of shares of Class B common stock, in which Vanderhook has an indirect one‑third pecuniary interest.

Viant Technology Inc. reported insider transactions linked to CEO and Chairman Timothy Vanderhook through Capital V LLC. Capital V LLC, in which Vanderhook holds a one-third interest, sold a total of 12,500 shares of Class A common stock in open‑market transactions at weighted average prices around $10.59–$10.89 per share, under a pre‑arranged Rule 10b5-1 trading plan adopted on March 18, 2025 and amended on September 17, 2025.

The filing also shows a conversion of 12,500 Class B Units of Viant Technology LLC into an equal number of Class A shares, with a corresponding cancellation of 12,500 shares of Class B common stock to the issuer for no consideration. After these steps, Capital V LLC continues to hold 9,094,775 Class B Units and 9,094,775 shares of Class B common stock, each Class B Unit being exchangeable one‑for‑one into Class A common stock.

Capital V LLC, a 10% owner of Viant Technology Inc., reported a Rule 10b5-1 trading sequence involving Class A and Class B interests. On May 19, 2026, it exercised 37,500 Class B Units of Viant Technology LLC into 37,500 shares of Class A common stock, and an equal number of Class B common shares were cancelled in connection with that redemption.

Capital V LLC then sold a total of 37,500 Class A shares in open-market transactions: 15,000 shares at a weighted average price of $10.8872 on May 19, 2026, 15,000 shares at $10.5956 on May 20, 2026, and 7,500 shares at $10.7885 on May 21, 2026, with actual trade prices within disclosed ranges. These sales were made under a Rule 10b5-1 plan adopted on March 18, 2025 and amended on September 17, 2025.

Following these transactions, Capital V LLC reported holding 0 shares of Class A common stock directly and 27,284,326 Class B Units, which are exchangeable on a one-for-one basis into Class A shares.

Viant Technology Inc. Chief Financial Officer Larry Madden sold 35,835 shares of Class A Common Stock in open-market transactions. The sales occurred on May 8, 2026 and May 11, 2026 at weighted average prices between $10.86 and $12.09. According to the filing, these transactions were executed under a pre-arranged Rule 10b5-1 trading plan adopted on December 15, 2025, indicating they were scheduled in advance rather than timed discretionarily. After these sales, Madden continued to directly hold more than 500,000 shares of Viant Technology Class A Common Stock.

Viant Technology Inc. Chief Financial Officer Larry Madden reported three open-market sales of Class A common stock. He sold 13,283 shares on April 21 at a weighted average price of $10.9109, 13,263 shares on April 22 at $10.7387, and 12,782 shares on April 23 at $10.1613, totaling 39,328 shares. These transactions were executed under a Rule 10b5-1 trading plan adopted on December 15, 2025. Following the sales, Madden directly holds 553,699 shares of Viant Technology Inc. common stock.

Capital V LLC, a 10% owner of Viant Technology Inc., reported a series of transactions in the company’s Class A and Class B equity. On April 20, 2026, it exercised 37,500 Class B Units of Viant Technology LLC into the same number of Class A common shares, and the corresponding 37,500 shares of Class B common stock were cancelled for no consideration. Capital V then sold a total of 37,500 Class A shares in open-market transactions on April 20–22 at weighted average prices of $11.1198, $10.9147, and $10.7436 per share. These sales were made under a pre-arranged Rule 10b5-1 trading plan. Following the last reported sale, Capital V reported 0 shares of Class A common stock and 27,321,826 Class B Units held directly.

Viant Technology Inc. director and CEO Timothy Vanderhook reported multiple transactions in shares held indirectly through Capital V LLC, an entity in which he holds a one-third interest. Capital V LLC sold a total of 12,500 shares of Class A common stock in open-market transactions at weighted average prices ranging from about $10.74 to $11.12 per share, leaving no Class A shares held indirectly after the last sale. These sales were made under a Rule 10b5-1 trading plan adopted by Capital V LLC. On the same date, 12,500 Class B Units of Viant Technology LLC were exchanged on a one-for-one basis into 12,500 shares of Class A common stock, with an equal number of Class B common shares cancelled for no consideration. Following these exchanges, Capital V LLC continued to hold 9,107,275 Class B Units indirectly.

Viant Technology Inc. insider transactions show an entity associated with Chief Operating Officer Christopher Vanderhook, Capital V LLC, executing a small, pre-planned sale and conversion sequence. Capital V LLC exchanged 12,500 Class B Units into 12,500 shares of Class A common stock and the corresponding Class B common shares were cancelled. Those 12,500 Class A shares were then sold in open-market transactions at weighted average prices based on trades within ranges from $10.395 to $11.46, under a Rule 10b5-1 trading plan adopted on March 18, 2025 and amended on September 17, 2025. Following these transactions, Capital V LLC continues to hold 9,107,275 Class B Units, which are exchangeable on a one-for-one basis into Class A shares, and Vanderhook has an indirect one-third pecuniary interest in Capital V LLC’s total holdings.

Viant Technology Inc. Chief Financial Officer Larry Madden sold 7,297 shares of Class A Common Stock in an open-market transaction. The sale occurred on April 6, 2026 at a weighted average price of $11.3084 per share. After the sale, Madden directly owned 593,027 shares. The shares were sold pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on December 15, 2025, indicating the timing was set in advance as part of a scheduled trading program.

Viant Technology Inc. Chief Financial Officer Larry Madden executed open-market sales of a total of 17,541 shares of Class A Common Stock on April 1 and April 2, 2026, under a Rule 10b5-1 trading plan adopted on December 15, 2025. The April 1 sale covered 7,410 shares at a weighted average price of $11.2735 per share, and the April 2 sale covered 10,131 shares at a weighted average price of $10.9447 per share, each completed through multiple trades within disclosed price ranges. Following these transactions, Madden directly holds 600,324 shares of Viant Technology Inc. Class A Common Stock.

Viant Technology Inc. insider activity shows transactions by Capital V LLC, an entity associated with Chief Operating Officer Christopher Vanderhook. Capital V LLC redeemed 12,500 Class B Units of Viant Technology LLC for 12,500 shares of Class A common stock, with the corresponding Class B common shares cancelled for no consideration in connection with this redemption.

Capital V LLC then sold an aggregate of 12,920 shares of Class A common stock in open-market transactions at weighted average prices of $11.7959, $11.9986, and $11.4229, executed over several trades in price ranges from $11.10 to $12.46. These sales were made pursuant to a Rule 10b5-1 trading plan adopted by Capital V LLC on March 18, 2025 and amended on September 17, 2025.

Following these transactions, Capital V LLC continued to hold 9,119,775 Class B Units, and Vanderhook is deemed to have an indirect pecuniary interest in one-third of Capital V LLC’s total holdings.

Capital V LLC, a 10% owner of Viant Technology Inc. (DSP), reported a mix of option exercises and share sales. On March 17, 2026, it exercised 37,500 Class B Units of Viant Technology LLC, converting them into 37,500 shares of Class A common stock, while a corresponding 37,500 shares of Class B common stock were cancelled.

Across March 17–19, 2026, Capital V LLC then sold a total of 38,760 shares of Class A common stock in open‑market transactions at weighted average prices around the $11–$12 range, pursuant to a pre‑existing Rule 10b5‑1 trading plan. Following these trades, it reported no directly held Class A shares and 27,359,326 Class B Units outstanding.

Viant Technology Inc. director, CEO and 10% owner Timothy Vanderhook reported indirect transactions through Capital V LLC, in which he holds a one-third interest. On March 17, 2026, Capital V LLC redeemed 12,500 Class B Units of Viant Technology LLC for an equal number of Class A common shares, and an equal number of Class B common shares were cancelled for no consideration. The same day, Capital V LLC sold 5,000 Class A shares in open-market transactions. Additional open-market sales of 5,000 and 2,920 Class A shares occurred on March 18 and March 19, 2026, respectively, leaving no Class A shares held indirectly after the final sale. The sales were executed under a Rule 10b5-1 trading plan adopted by Capital V LLC on March 18, 2025 and amended on September 17, 2025, at weighted average prices within disclosed ranges from $11.10 to $12.46 per share.

Viant Technology Inc. Chief Financial Officer Larry Madden received a grant of 249,258 restricted stock units of Class A common stock, each representing one share, with no purchase price. These RSUs vest in equal quarterly installments of 8.33% over three years, subject to continued service.

Madden also sold 1,658 shares of Class A common stock at a weighted average price of $13.0322 per share in open-market transactions pursuant to a Rule 10b5-1 trading plan adopted on June 2, 2025. Following these transactions, he directly owns 617,865 shares of Class A common stock.

Viant Technology Inc. Chief Financial Officer Larry Madden reported a routine tax-related share withholding tied to vesting of restricted stock units. On March 10, 2026, 35,289 shares of Class A Common Stock at $10.50 per share were withheld by the company to cover tax obligations, connected to the vesting of 65,408 restricted stock units. After this non-market transaction, Madden directly owned 370,265 shares of Class A Common Stock.

Viant Technology Inc. CEO and Chairman Timothy Vanderhook returned 44,177 shares of Class A Common Stock to the company at $10.50 per share. According to the disclosure, these shares were repurchased by the issuer to cover estimated taxes tied to the vesting of 82,866 restricted stock units on March 10, 2026. After this tax-related disposition to the issuer, Vanderhook directly holds 218,005 Class A shares and indirectly holds 420 additional shares through Capital V LLC.

Viant Technology Inc. Chief Operating Officer Christopher Vanderhook reported a tax-related share disposition. On March 10, 2026, the company repurchased 44,177 shares of Class A common stock from him at $10.50 per share to cover estimated taxes on the vesting of 82,866 restricted stock units. After this transaction, he holds 303,005 shares directly and 420 shares indirectly through Capital V LLC.

Capital V LLC, a 10% owner of Viant Technology Inc., reported a mix of sales and conversions involving Class A and Class B interests. On February 17–19, 2026, it sold an aggregate of 36,240 shares of Class A common stock in open-market transactions at weighted average prices in the $9.02–$9.56 range, under a pre-established Rule 10b5-1 trading plan. Capital V also exercised 37,500 Class B Units of Viant Technology LLC for 37,500 shares of Class A common stock, and a corresponding 37,500 shares of Class B common stock were cancelled in a disposition to the issuer in connection with that redemption.

Viant Technology Inc. director and Chief Operating Officer Christopher Vanderhook reported multiple indirect transactions through Capital V LLC. Capital V LLC exchanged 12,500 Class B Units of Viant Technology LLC into 12,500 shares of Class A common stock, with a corresponding 12,500 shares of Class B common stock cancelled for no consideration in connection with the redemption.

Following these conversions, Capital V LLC sold an aggregate of 12,080 shares of Class A common stock in open-market transactions on February 17, 18 and 19 at weighted average prices of $9.2645, $9.1853 and $9.1718 per share, respectively. The sales were made on behalf of Capital V LLC under a Rule 10b5-1 trading plan adopted on March 18, 2025 and amended on September 17, 2025. Vanderhook holds a one-third interest in Capital V LLC and may be deemed to have an indirect pecuniary interest in one-third of its holdings.

Viant Technology Inc. insider activity shows transactions by Capital V LLC, an entity associated with CEO and Chairman Timothy Vanderhook, involving both conversions and sales of shares. Capital V LLC exercised 12,500 Class B Units of Viant Technology LLC into 12,500 shares of Class A common stock, with a corresponding 12,500 shares of Class B common stock cancelled for no consideration. Following these exercises and cancellations, Capital V LLC sold a total of 12,080 shares of Class A common stock in open-market transactions at weighted average prices around the low-$9 range, executed over multiple trades. These sales were carried out under a Rule 10b5-1 trading plan adopted by Capital V LLC on March 18, 2025 and amended on September 17, 2025. Vanderhook is reported to hold a one-third interest in Capital V LLC and is therefore treated as having an indirect pecuniary interest in a portion of these holdings.

Viant Technology Inc. Chief Financial Officer Larry Madden reported selling 4,224 shares of Class A Common Stock on January 22, 2026. The shares were sold at a weighted average price of $13.0885 per share, with individual trade prices ranging from $13.00 to $13.175. After this transaction, Madden beneficially owns 405,554 shares of Viant stock in direct ownership. The sale was made under a pre-arranged Rule 10b5-1 trading plan that Madden adopted on June 2, 2025, which is designed to allow insiders to sell shares over time according to predetermined instructions.

Capital V LLC, a more than 10% owner of Viant Technology Inc. (DSP), reported a series of transactions involving its dual-class holdings. On January 20, 2026, it exercised 37,500 Class B Units of Viant Technology LLC into 37,500 shares of Class A common stock at an exercise price of $0, and the corresponding 37,500 shares of Class B common stock were cancelled for no consideration in connection with that redemption. Capital V LLC then sold Class A shares in three tranches under a pre-arranged Rule 10b5-1 trading plan: 15,000 shares on January 20 at a weighted average price of $11.9403, 14,778 shares on January 21 at $12.2405, and 7,722 shares on January 22 at $12.8716. After these sales, Capital V LLC reported holding 0 shares of Class A common stock directly and 27,434,326 Class B Units, which remain exchangeable one-for-one into Class A shares with corresponding Class B common stock cancelled upon each exchange.

Viant Technology Inc. insider activity centers on transactions by Capital V LLC, an entity associated with CEO, Chairman, and 10% owner Timothy Vanderhook. On January 20, 2026, Capital V LLC exercised 12,500 Class B Units of Viant Technology LLC for 12,500 shares of Class A common stock at an exercise price of $0, and a corresponding 12,500 shares of Class B common stock were cancelled.

Those Class A shares were then sold in three steps by Capital V LLC under a Rule 10b5‑1 trading plan: 5,000 shares on January 20, 2026 at a weighted average price of $11.9403, 4,926 shares on January 21, 2026 at $12.2405, and 2,574 shares on January 22, 2026 at $12.8716. The filing notes that Vanderhook holds a one‑third interest in Capital V LLC and may be deemed to have an indirect pecuniary interest in one‑third of its total holdings, including 9,144,775 Class B Units/Class B common shares reported as beneficially owned after these transactions.

Viant Technology Inc. insider activity centers on Capital V LLC, an entity associated with Chief Operating Officer and director Christopher Vanderhook. On January 20, 2026, Capital V LLC exercised 12,500 Class B Units of Viant Technology LLC into an equal number of Class A common shares, and the corresponding 12,500 Class B common shares were cancelled for no consideration. The Class B Units are exchangeable on a one-for-one basis into Class A shares.

Following this exchange, Class A shares held indirectly through Capital V LLC were sold under a Rule 10b5-1 trading plan adopted by Capital V LLC. The plan sales covered 5,000 Class A shares at $11.9403 on January 20, 4,926 shares at $12.2405 on January 21, and 2,574 shares at $12.8716 on January 22, 2026, all reported as indirectly owned "By Capital V LLC." Vanderhook holds a one-third interest in Capital V LLC and is therefore deemed to have an indirect pecuniary interest in one-third of its holdings.

Viant Technology Inc. director, 10% owner and Chief Operating Officer Christopher Vanderhook reported several equity transactions involving Class A and Class B interests. On 12/16/2025, 12,500 Class B units of Viant Technology LLC were exchanged into 12,500 shares of Class A common stock at an exercise price of $0, with an equal number of Class B common shares cancelled. After this, 9,102 Class A shares were sold on 12/17/2025 at $11.704 in a transaction instituted by the company to cover estimated taxes from restricted stock unit vesting.

Additional sales of 5,000 Class A shares on 12/17/2025 at a weighted average price of $11.7366 and 5,000 shares on 12/18/2025 at a weighted average price of $11.928 were made on behalf of Capital V LLC under a Rule 10b5-1 trading plan. Following these transactions, Vanderhook directly owned 347,182 Class A shares and indirectly held 7,500 Class A shares and 9,157,275 Class B common shares through Capital V LLC, in which he has a one-third interest.

Viant Technology Inc.'s Chief Financial Officer, Larry Madden, reported a sale of company stock in connection with equity compensation. On 12/17/2025, he sold 13,477 shares of Class A common stock at a price of $11.704 per share. According to the footnote, these shares were sold in a transaction instituted by the company on his behalf to cover withholding tax tied to the vesting and settlement of restricted stock units.

After this tax-related sale, Madden directly beneficially owned 409,778 shares of Viant Technology Inc. Class A common stock. The filing indicates this report is for one reporting person and confirms his role as Chief Financial Officer of the issuer.

Capital V LLC, a reporting person associated with Viant Technology Inc. (DSP), reported transactions dated 09/16/2025 and 09/17/2025. On 09/16/2025 the filer acquired 941,777 Class B Units (exchangeable one-for-one into Class A common stock) for $0 and simultaneously recorded the cancellation of an equal number of Class B common shares for no consideration. The following day, 09/17/2025, the issuer purchased 941,777 shares of Class A common stock from Capital V LLC for an aggregate price of approximately $9,000,000 (price per share $9.5564). After the reported transactions the filing shows 27,509,326 shares of Class B common stock beneficially owned and 0 shares of Class A common stock beneficially owned by the reporting person.

Christopher Vanderhook, Viant Technology Inc. (DSP) Chief Operating Officer, reported multiple transactions between 09/15/2025 and 09/17/2025 involving both Class A and Class B common stock and related units. On 09/15/2025 he sold 8,782 shares of Class A at $9.7274 to cover estimated taxes from RSU vesting. On 09/16/2025 313,926 Class B units were treated as exchanged/recorded with no cash price, and on 09/17/2025 he sold 313,926 Class A shares at $9.5564. Pursuant to an agreement dated 09/15/2025 the issuer purchased 941,777 Class A shares from Capital V LLC for approximately $9,000,000. The filing corrects a prior Form 4 gift count and discloses indirect interests via Capital V LLC and several GRATs.