Comparable stake leader
Capital V LLC
SEC ownership of Viant Technology Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001828791.
Disclosed value leader
Capital V LLC
Comparable rows
7/50
Latest evidence
30 Sep 2026
- Public ticker
- DSP on Nasdaq
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Capital V LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
7 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Capital V LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Sep 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001828791
- Issuer location
- Irvine, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Viant Technology Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Capital V LLC
Disclosed value leader
Capital V LLC
Comparable rows
7/50
Latest evidence
30 Sep 2026
13D/G
3/4/5
13F
Lead comparable stake: 62%
43 rows are not safely comparable across share classes.
13D/G row: Capital V LLC
Showing 1-8 of 50 holder rows.
Quick read
Capital V LLC leads the comparable SEC ownership view at 62%.
7 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Capital V LLC's linked filing trail.
Comparable ownership
Top 5
Capital V LLC
62%
Christopher Vanderhook
33%
Timothy Vanderhook
32%
PUNCH & ASSOCIATES INVESTMENT MAN...
7.3%
ROYCE & ASSOCIATES LP
6.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Capital V LLC |
13D/G
3/4/5
10%+ Owner
|
62%
Reported 13D/G
· 30 Sep 2025
|
$237,405,483
27,509,326 shares
|
$0 | 30 Sep 2025 |
| Christopher Vanderhook |
3/4/5
13D/G
Chief Operating Officer, Director, 10%+ Owner
|
33%
Reported 13D/G
· 31 Mar 2026
|
$186,439,515
17,188,793 shares
mixed-class rows
|
-$1,320,030 | 10 Sep 2026 |
| Timothy Vanderhook |
3/4/5
13D/G
CEO and Chairman, Director, 10%+ Owner
|
32%
Reported 13D/G
· 31 Mar 2026
|
$185,363,415
17,103,793 shares
mixed-class rows
|
-$1,320,030 | 10 Sep 2026 |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. |
13F
13D/G
Company
|
7.3%
Reported 13D/G
· 30 Jun 2025
|
$19,008,826
1,501,487 shares
|
— | 30 Jun 2026 |
| ROYCE & ASSOCIATES LP |
13D/G
13F
Company
|
6.6%
Reported 13D/G
· 30 Sep 2026
|
$17,135,848
1,392,004 shares
|
+$5,908,416 | 30 Sep 2026 |
| VANGUARD GROUP INC |
13D/G
The Vanguard Group
|
6.3%
Reported 13D/G
· 31 Mar 2025
|
$14,365,048
1,035,692 shares
|
$0 | 31 Mar 2025 |
| Larry Madden |
13D/G
3/4/5
Chief Financial Officer
|
5.1%
Reported 13D/G
· 15 Jun 2026
|
$11,625,314
1,076,418 shares
|
-$1,623,791 | 15 Jun 2026 |
| BlackRock, Inc. |
13F
Company
|
—
denominator unverified
|
$16,137,549
1,274,688 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$9,531,271.
Buys
$0
Insiders: 0
Sells
$9,531,271
Insiders: 5
Net
-$9,531,271
Shares: -834,348
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 834,348
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 79,806 | $0 | $1,020,593 | -$1,020,593 |
| 3-6 | 0 | 340,313 | $0 | $3,861,451 | -$3,861,451 |
| 6-9 | 0 | 253,324 | $0 | $2,718,508 | -$2,718,508 |
| 9-12 | 0 | 160,905 | $0 | $1,930,719 | -$1,930,719 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-9 of 9 reporting-owner rows connected to Viant Technology Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
9
Largest Forms 3/4/5 holder
Christopher Vanderhook
Net 12M change
-$9.53M
Full value: -$9,531,270 · USD · 12-month changeLatest report
13 Oct 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Christopher Vanderhook | Chief Operating Officer, Director, 10%+ Owner | $186,439,515 | -$1,320,030 | -0.7% | Mixed | 10 Sep 2026 |
| Timothy Vanderhook | CEO and Chairman, Director, 10%+ Owner | $185,363,415 | -$1,320,030 | -0.71% | Mixed | 10 Sep 2026 |
| Larry Madden | Chief Financial Officer | $4,229,792 | -$3,474,114 | -45% | Filing P/S | 13 Oct 2026 |
| Vivian Yang | Director | $1,214,718 | Mixed | 04 Jun 2026 | ||
| Elizabeth Goodman Williams | Director | $828,673 | Mixed | 02 Jun 2024 | ||
| Brett Wilson | Director | $565,185 | Mixed | 04 Jun 2026 | ||
| Craig Justin Abrahams | Director | $495,119 | Mixed | 10 Aug 2026 | ||
| Max O Valdes | Director | $352,472 | -$80,457 | -19% | Filing P/S | 08 Jun 2026 |
| Capital V LLC | 10%+ Owner | $0 | -$3,336,639 | -100% | Mixed | 21 Jul 2026 |
Recent insider transactions for Viant Technology Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Larry Madden | DSP | Class A Common Stock | Sale | -6.04% | -$272,060 | $13.14 | -20,711 | 322,000 | 13 Oct 2026 | Direct |
| Larry Madden | DSP | Class A Common Stock | Sale | -4.09% | -$176,735 | $12.10 | -14,602 | 342,711 | 18 Sep 2026 | Direct |
| Larry Madden | DSP | Class A Common Stock | Sale | -4.55% | -$213,284 | $12.52 | -17,042 | 357,313 | 16 Sep 2026 | Direct |
| Christopher Vanderhook | DSP | Class A Common Stock | Disposed to Issuer | -2.94% | -8,636 | 285,244 | 10 Sep 2026 | Direct | ||
| Timothy Vanderhook | DSP | Class A Common Stock | Disposed to Issuer | -4.13% | -8,636 | 200,244 | 10 Sep 2026 | Direct | ||
| Larry Madden | DSP | Class A Common Stock | Tax liability | -6.03% | -24,016 | 374,355 | 10 Sep 2026 | Direct | ||
| Larry Madden | DSP | Class A Common Stock | Sale | -6.45% | -$358,514 | $13.06 | -27,451 | 398,371 | 11 Aug 2026 | Direct |
| Craig Justin Abrahams | DSP | Class A Common Stock | Award | 39,109 | 39,109 | 10 Aug 2026 | Direct | |||
| Larry Madden | DSP | Class A Common Stock | Sale | -0.66% | -$30,070 | $10.69 | -2,814 | 425,822 | 23 Jul 2026 | Direct |
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -100% | -$45,065 | $10.47 | -4,304 | 0 | 23 Jul 2026 | By Capital V LLC |
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -100% | -$45,065 | $10.47 | -4,304 | 0 | 23 Jul 2026 | By Capital V LLC |
| Capital V LLC | DSP | Class A Common Stock | Sale | -100% | -$135,194 | $10.47 | -12,912 | 0 | 23 Jul 2026 | Direct |
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -53.7% | -$55,173 | $11.03 | -5,000 | 4,304 | 22 Jul 2026 | By Capital V LLC |
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -53.7% | -$55,173 | $11.03 | -5,000 | 4,304 | 22 Jul 2026 | By Capital V LLC |
| Capital V LLC | DSP | Class A Common Stock | Sale | -53.7% | -$165,519 | $11.03 | -15,000 | 12,912 | 22 Jul 2026 | Direct |
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -25.6% | -$37,407 | $11.70 | -3,196 | 9,304 | 21 Jul 2026 | By Capital V LLC |
| Timothy Vanderhook | DSP | Class B Common Stock | Disposed to Issuer | -0.14% | -12,500 | 9,069,775 | 21 Jul 2026 | By Capital V LLC | ||
| Timothy Vanderhook | DSP | Class A Common Stock | Options Exercise | 12,500 | 12,500 | 21 Jul 2026 | By Capital V LLC | |||
| Timothy Vanderhook | DSP | Class B Units | Options Exercise | -0.14% | -12,500 | 9,069,775 | 21 Jul 2026 | By Capital V LLC | ||
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -25.6% | -$37,407 | $11.70 | -3,196 | 9,304 | 21 Jul 2026 | By Capital V LLC |
| Christopher Vanderhook | DSP | Class B Common Stock | Disposed to Issuer | -0.14% | -12,500 | 9,069,775 | 21 Jul 2026 | By Capital V LLC | ||
| Christopher Vanderhook | DSP | Class A Common Stock | Options Exercise | 12,500 | 12,500 | 21 Jul 2026 | By Capital V LLC | |||
| Christopher Vanderhook | DSP | Class B Units | Award | -0.14% | -12,500 | 9,069,775 | 21 Jul 2026 | By Capital V LLC | ||
| Capital V LLC | DSP | Class A Common Stock | Sale | -25.6% | -$112,220 | $11.70 | -9,588 | 27,912 | 21 Jul 2026 | Direct |
| Capital V LLC | DSP | Class B Common Stock | Disposed to Issuer | -0.14% | -37,500 | 27,209,326 | 21 Jul 2026 | Direct | ||
| Capital V LLC | DSP | Class A Common Stock | Options Exercise | 37,500 | 37,500 | 21 Jul 2026 | Direct | |||
| Capital V LLC | DSP | Class B Units | Options Exercise | -0.14% | -37,500 | 27,209,326 | 21 Jul 2026 | Direct | ||
| Larry Madden | DSP | Class A Common Stock | Sale | -2.56% | -$143,110 | $12.69 | -11,273 | 428,636 | 08 Jul 2026 | Direct |
| Larry Madden | DSP | Class A Common Stock | Sale | -2.04% | -$117,664 | $12.86 | -9,149 | 439,909 | 07 Jul 2026 | Direct |
| Larry Madden | DSP | Class A Common Stock | Sale | -2.2% | -$128,999 | $12.78 | -10,097 | 449,058 | 06 Jul 2026 | Direct |
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -100% | -$27,412 | $10.96 | -2,500 | 0 | 18 Jun 2026 | By Capital V LLC |
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -100% | -$27,412 | $10.96 | -2,500 | 0 | 18 Jun 2026 | By Capital V LLC |
| Capital V LLC | DSP | Class A Common Stock | Sale | -100% | -$82,234 | $10.96 | -7,500 | 0 | 18 Jun 2026 | Direct |
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -66.7% | -$55,442 | $11.09 | -5,000 | 2,500 | 17 Jun 2026 | By Capital V LLC |
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -66.7% | -$55,442 | $11.09 | -5,000 | 2,500 | 17 Jun 2026 | By Capital V LLC |
| Capital V LLC | DSP | Class A Common Stock | Sale | -66.7% | -$166,326 | $11.09 | -15,000 | 7,500 | 17 Jun 2026 | Direct |
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -40% | -$55,857 | $11.17 | -5,000 | 7,500 | 16 Jun 2026 | By Capital V LLC |
| Christopher Vanderhook | DSP | Class B Common Stock | Disposed to Issuer | -0.14% | -12,500 | 9,082,275 | 16 Jun 2026 | By Capital V LLC | ||
| Christopher Vanderhook | DSP | Class A Common Stock | Options Exercise | 12,500 | 12,500 | 16 Jun 2026 | By Capital V LLC | |||
| Christopher Vanderhook | DSP | Class B Units | Options Exercise | -0.14% | -12,500 | 9,082,275 | 16 Jun 2026 | By Capital V LLC | ||
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -40% | -$55,857 | $11.17 | -5,000 | 7,500 | 16 Jun 2026 | By Capital V LLC |
| Timothy Vanderhook | DSP | Class B Common Stock | Disposed to Issuer | -0.14% | -12,500 | 9,082,275 | 16 Jun 2026 | By Capital V LLC | ||
| Timothy Vanderhook | DSP | Class A Common Stock | Options Exercise | 12,500 | 12,500 | 16 Jun 2026 | By Capital V LLC | |||
| Timothy Vanderhook | DSP | Class B Units | Options Exercise | -0.14% | -12,500 | 9,082,275 | 16 Jun 2026 | By Capital V LLC | ||
| Capital V LLC | DSP | Class A Common Stock | Sale | -40% | -$167,571 | $11.17 | -15,000 | 22,500 | 16 Jun 2026 | Direct |
| Capital V LLC | DSP | Class B Common Stock | Disposed to Issuer | -0.14% | -37,500 | 27,246,826 | 16 Jun 2026 | Direct | ||
| Capital V LLC | DSP | Class A Common Stock | Options Exercise | 37,500 | 37,500 | 16 Jun 2026 | Direct | |||
| Capital V LLC | DSP | Class B Units | Options Exercise | -0.14% | -37,500 | 27,246,826 | 16 Jun 2026 | Direct | ||
| Larry Madden | DSP | Class A Common Stock | Sale | -5.24% | -$281,674 | $11.10 | -25,376 | 459,155 | 15 Jun 2026 | Direct |
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -3.01% | -$101,288 | $11.10 | -9,125 | 293,880 | 15 Jun 2026 | Direct |
* marks a reported price that did not pass the local price check.