Who executed the Viant Technology (DSP) share sales disclosed here?

The sales were executed by Capital V LLC, which holds Viant interests indirectly for Timothy Vanderhook. He owns a one‑third interest in Capital V LLC and is deemed to have an indirect pecuniary interest in one‑third of the entity’s total holdings reported in the filing.

Capital V LLC trims Viant (DSP) stake in 10b5-1 sales

Filing Impact

(Moderate)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

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.

Insider Trade Summary 10b5-1

Net Seller: 12,500 shares ($134,385)

Net Sell 6 txns

Insider Vanderhook Timothy

Role CEO and Chairman

Sold 12,500 shs ($134K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	2,500	$10.7885	$27K
Sale	Class A Common Stock	5,000	$10.5956	$53K
Exercise	Class B Units	12,500	$0.00	--
Exercise	Class A Common Stock	12,500	$0.00	--
Disposition	Class B Common Stock	12,500	$0.00	--
Sale	Class A Common Stock	5,000	$10.8872	$54K

Holdings After Transaction: Class A Common Stock — 0 shares (Indirect, By Capital V LLC); Class B Units — 9,094,775 shares (Indirect, By Capital V LLC); Class B Common Stock — 9,094,775 shares (Indirect, By Capital V LLC)

Footnotes (1)

The Class B Units of Viant Technology LLC ("Class B Units") are exchangeable, at the holder's option, on a one-for-one basis into shares of Class A common stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B common stock will be automatically cancelled. The Reporting Person holds a one-third interest in Capital V LLC and may therefore be deemed to have an indirect pecuniary interest in one-third of Capital V LLC's total holdings. Reflects the cancellation for no consideration of a number of shares of Class B common stock of the Issuer in connection with the redemption by Capital V LLC of an equal number of Class B Units for Class A common stock. Shares sold pursuant to a 10b5-1 plan adopted by Capital V LLC on March 18, 2025, as amended on September 17, 2025. The price reported in Column 4 is a weighted average price, based on the Reporting Person's pro rata portion of a total of 15,000 shares of Class A Common Stock sold on behalf of Capital V LLC. These shares were sold in multiple transactions at prices ranging from $10.565 to $11.20. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price, based on the Reporting Person's pro rata portion of a total of 15,000 shares of Class A Common Stock sold on behalf of Capital V LLC. These shares were sold in multiple transactions at prices ranging from $10.31 to $10.96. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price, based on the Reporting Person's pro rata portion of a total of 7,500 shares of Class A Common Stock sold on behalf of Capital V LLC. These shares were sold in multiple transactions at prices ranging from $10.53 to $11.04. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Key Figures

Class A shares sold: 12,500 shares Sale price 2026-05-21: $10.7885 per share Sale price 2026-05-20: $10.5956 per share +5 more

8 metrics

Class A shares sold 12,500 shares Open-market sales linked to Timothy Vanderhook via Capital V LLC

Sale price 2026-05-21 $10.7885 per share 2,500 Class A shares sold on May 21, 2026

Sale price 2026-05-20 $10.5956 per share 5,000 Class A shares sold on May 20, 2026

Sale price 2026-05-19 $10.8872 per share 5,000 Class A shares sold on May 19, 2026

Class B Units converted 12,500 units Exchanged one-for-one into 12,500 Class A shares

Class B common cancelled 12,500 shares Disposition to issuer for no consideration on conversion

Class B Units remaining 9,094,775 units Held by Capital V LLC after transactions

Class B common remaining 9,094,775 shares Held by Capital V LLC after transactions

Key Terms

Class B Units, Class B common stock, indirect pecuniary interest, 10b5-1 plan, +2 more

6 terms

Class B Units financial

"The Class B Units of Viant Technology LLC ("Class B Units") are exchangeable, at the holder's option..."

Class B common stock financial

"the corresponding share of Class B common stock will be automatically cancelled."

A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.

indirect pecuniary interest financial

"may therefore be deemed to have an indirect pecuniary interest in one-third of Capital V LLC's total holdings."

10b5-1 plan financial

"Shares sold pursuant to a 10b5-1 plan adopted by Capital V LLC on March 18, 2025, as amended..."

A 10b5-1 plan is a pre-arranged strategy that allows company insiders to buy or sell their shares at predetermined times and prices, even while they are aware of confidential information. It acts like a scheduled appointment for trading, helping ensure transactions happen transparently and legally, which can reassure investors that trades are not based on insider knowledge.

weighted average price financial

"The price reported in Column 4 is a weighted average price, based on the Reporting Person's pro rata portion..."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

disposition to issuer financial

"transaction_action": "issuer disposition", "transaction_code_description": "Disposition to issuer""

Form 4 Insider Transactions: What Each Field Means →

05/21/2026 - 09:34 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Vanderhook Timothy

(Last)

(First)

(Middle)

C/O VIANT TECHNOLOGY INC.

2722 MICHELSON DRIVE, SUITE 100

(Street)

IRVINE

CALIFORNIA

92612

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Viant Technology Inc. [ DSP ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	CEO and Chairman

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/19/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	05/19/2026		M⁽¹⁾		12,500	A	$0⁽¹⁾	12,500	I	By Capital V LLC⁽²⁾
Class B Common Stock	05/19/2026		D⁽³⁾		12,500	D	$0⁽³⁾	9,094,775	I	By Capital V LLC⁽²⁾
Class A Common Stock	05/19/2026		S⁽⁴⁾		5,000	D	$10.8872⁽⁵⁾	7,500	I	By Capital V LLC⁽²⁾
Class A Common Stock	05/20/2026		S⁽⁴⁾		5,000	D	$10.5956⁽⁶⁾	2,500	I	By Capital V LLC⁽²⁾
Class A Common Stock	05/21/2026		S⁽⁴⁾		2,500	D	$10.7885⁽⁷⁾	0	I	By Capital V LLC⁽²⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Class B Units	⁽¹⁾	05/19/2026		M			12,500	⁽¹⁾	⁽¹⁾	Class A Common Stock	12,500	⁽¹⁾	9,094,775	I	By Capital V LLC⁽²⁾

Explanation of Responses:

1. The Class B Units of Viant Technology LLC ("Class B Units") are exchangeable, at the holder's option, on a one-for-one basis into shares of Class A common stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B common stock will be automatically cancelled.

2. The Reporting Person holds a one-third interest in Capital V LLC and may therefore be deemed to have an indirect pecuniary interest in one-third of Capital V LLC's total holdings.

3. Reflects the cancellation for no consideration of a number of shares of Class B common stock of the Issuer in connection with the redemption by Capital V LLC of an equal number of Class B Units for Class A common stock.

4. Shares sold pursuant to a 10b5-1 plan adopted by Capital V LLC on March 18, 2025, as amended on September 17, 2025.

5. The price reported in Column 4 is a weighted average price, based on the Reporting Person's pro rata portion of a total of 15,000 shares of Class A Common Stock sold on behalf of Capital V LLC. These shares were sold in multiple transactions at prices ranging from $10.565 to $11.20. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

6. The price reported in Column 4 is a weighted average price, based on the Reporting Person's pro rata portion of a total of 15,000 shares of Class A Common Stock sold on behalf of Capital V LLC. These shares were sold in multiple transactions at prices ranging from $10.31 to $10.96. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

7. The price reported in Column 4 is a weighted average price, based on the Reporting Person's pro rata portion of a total of 7,500 shares of Class A Common Stock sold on behalf of Capital V LLC. These shares were sold in multiple transactions at prices ranging from $10.53 to $11.04. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Remarks:

	/s/ David Sincich, Attorney-in-Fact for Timothy Vanderhook	05/21/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did Viant Technology (DSP) report in this Form 4?

The Form 4 reports that Capital V LLC, associated with CEO Timothy Vanderhook, sold 12,500 shares of Viant’s Class A common stock in open‑market trades and simultaneously converted 12,500 Class B Units into Class A shares, cancelling related Class B common stock.

How many Viant Technology (DSP) shares were sold and at what prices?

Capital V LLC sold 12,500 shares of Viant Class A common stock in several open‑market transactions. Weighted average prices per share reported were approximately $10.5956 and $10.7885, with detailed ranges between about $10.31 and $11.20 disclosed in the footnotes.

What does the Class B Unit conversion mean for Viant Technology (DSP)?

The filing shows 12,500 Class B Units of Viant Technology LLC were exchanged into 12,500 shares of Class A common stock. At the same time, 12,500 shares of Class B common stock were cancelled for no consideration, reflecting the standard one‑for‑one exchange and related Class B share cancellation mechanism.

How many Viant Technology (DSP) Class B Units does Capital V LLC still hold?

After the reported transactions, Capital V LLC holds 9,094,775 Class B Units of Viant Technology LLC and 9,094,775 shares of Class B common stock. Each Class B Unit is exchangeable on a one‑for‑one basis into a share of Viant’s Class A common stock under the described structure.

Were the Viant Technology (DSP) insider sales part of a trading plan?

Yes. The share 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. Such plans pre‑schedule trades, indicating the timing of these sales was set in advance rather than decided opportunistically.