Viant Technology (NASDAQ: DSP) entity logs 12,920-share sale under 10b5-1 plan

Rhea-AI Filing Summary

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.

Insights

Equity Markets Analyst

Pre-planned entity-level sales with large stake retained look routine.

The filing shows Capital V LLC, an entity associated with COO Christopher Vanderhook, redeeming 12,500 Class B Units into Class A shares and selling 12,920 Class A shares in open-market trades around $11–$12 per share.

Footnotes state these sales were executed under a pre-arranged Rule 10b5-1 trading plan adopted and later amended in 2025, which typically indicates scheduled diversification rather than opportunistic timing. The Class B redemption also cancelled an equal number of Class B common shares.

After the transactions, Capital V LLC still holds 9,119,775 Class B Units, and Vanderhook has an indirect pecuniary interest in one-third of that position. Given the pre-planned structure and the large remaining stake, this set of trades appears routine rather than thesis-changing.

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
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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).

X

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 Christopher

(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)
	Chief Operating Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	03/17/2026		M(1)		12,500	A	$0(1)	12,920	I	By Capital V LLC(2)
Class B Common Stock	03/17/2026		D(3)		12,500	D	$0(3)	9,119,775	I	By Capital V LLC(2)
Class A Common Stock	03/17/2026		S(4)		5,000	D	$11.7959(5)	7,920	I	By Capital V LLC(2)
Class A Common Stock	03/18/2026		S(4)		5,000	D	$11.9986(6)	2,920	I	By Capital V LLC(2)
Class A Common Stock	03/19/2026		S(4)		2,920	D	$11.4229(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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Class B Units	(1)	03/17/2026		M			12,500	(1)	(1)	Class A Common Stock	12,500	(1)	9,119,775	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 $11.59 to $12.23. 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 $11.675 to $12.46. 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 8,760 shares of Class A Common Stock sold on behalf of Capital V LLC. These shares were sold in multiple transactions at prices ranging from $11.10 to $11.855. 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/ Larry Madden, Attorney-in-Fact for Christopher Vanderhook	03/19/2026
	** 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)

FAQ

What insider transactions did Viant Technology (DSP) report for Christopher Vanderhook?

The filing reports entity-level trades by Capital V LLC, associated with COO Christopher Vanderhook. Capital V LLC redeemed 12,500 Class B Units for Class A shares and sold 12,920 Class A shares in open-market transactions at weighted average prices around $11–$12 per share.

Who actually sold Viant Technology (DSP) shares in this Form 4?

The seller was Capital V LLC, not Vanderhook personally. Vanderhook holds a one-third interest in Capital V LLC and thus an indirect pecuniary interest in one-third of the entity’s holdings, including the 12,920 Class A shares sold.

Were the Viant Technology (DSP) insider sales pre-planned under a Rule 10b5-1 plan?

Yes. The footnotes state the shares were sold under a Rule 10b5-1 trading plan adopted by Capital V LLC on March 18, 2025 and amended on September 17, 2025, indicating the trades were pre-scheduled rather than discretionary.

What was the size and pricing of the Viant Technology (DSP) share sales?

Capital V LLC sold a total of 12,920 Class A shares in multiple open-market transactions. Weighted average prices were reported at $11.7959, $11.9986, and $11.4229 per share, with individual trade prices ranging from $11.10 to $12.46.

How many Viant Technology (DSP) units does Capital V LLC still hold after these transactions?

After the transactions, Capital V LLC holds 9,119,775 Class B Units of Viant Technology LLC. Each Class B Unit is exchangeable on a one-for-one basis into a share of Class A common stock, with the corresponding Class B common share cancelled upon exchange.

What happened to the Viant Technology (DSP) Class B common shares tied to the redeemed units?

In connection with redeeming 12,500 Class B Units for Class A common stock, an equal number of Class B common shares were cancelled for no consideration. This reflects the paired structure where Class B Units and Class B common stock are linked and adjusted together.