Quick Takeaways
- DSP - Viant Technology Inc. has 8 insiders with reported activity on this page.
- Net insider value flow over the last year: -$5,493,722.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 8 Insiders of Viant Technology Inc.
- Symbol
- DSP on Nasdaq
- Location
- Irvine, CA
What Changed
- Buy value: ; sell value: $5,493,721.
- Net share flow: -485,884.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$5,493,722.
Buys
$0
Shares: 0
Insiders: 0
Sells
$5,493,722
Shares: 485,884
Insiders: 5
Net
-$5,493,722
Shares: -485,884
Insiders: -5
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 253,324 | $0 | $2,718,508 | -$2,718,508 |
| 3-6 | 0 | 160,905 | $0 | $1,930,719 | -$1,930,719 |
| 6-9 | 0 | 30,570 | $0 | $297,367 | -$297,367 |
| 9-12 | 0 | 41,085 | $0 | $547,129 | -$547,129 |
Viant Technology Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Larry Madden | Chief Financial Officer | $5,626,301 | -$1,228,793 | -18% | Filing P/S | 21 Apr 2026 |
| Vivian Yang | Director | $1,335,442 | Mixed | 05 Jun 2025 | ||
| Elizabeth Goodman Williams | Director | $828,673 | Mixed | 02 Jun 2024 | ||
| Brett Wilson | Director | $510,768 | Mixed | 05 Jun 2025 | ||
| Max O Valdes | Director | $308,427 | -$139,297 | -31% | Filing P/S | 05 Jun 2025 |
| Capital V LLC | 10%+ Owner | $0 | -$2,104,419 | -100% | Mixed | 20 Apr 2026 |
| Timothy Vanderhook | CEO and Chairman, Director, 10%+ Owner | $0 | -$1,010,606 | -100% | Mixed | 20 Apr 2026 |
| Christopher Vanderhook | Chief Operating Officer, Director, 10%+ Owner | $0 | -$1,010,606 | -100% | Mixed | 20 Apr 2026 |
Top shareholders of Viant Technology Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Capital V LLC |
13D/G
3/4/5
|
10%+ Owner |
62%
|
27,509,326
|
$237,405,483 | $0 | 30 Sep 2025 | |
| Christopher Vanderhook |
13D/G
3/4/5
|
Chief Operating Officer, Director, 10%+ Owner |
35%
|
8,576,378
|
$118,954,363 | $0 | 31 Mar 2025 | |
| Timothy Vanderhook |
13D/G
3/4/5
|
CEO and Chairman, Director, 10%+ Owner |
35%
|
8,576,378
|
$118,954,363 | $0 | 31 Mar 2025 | |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. |
13D/G
13F
|
Company |
7.3%
|
1,155,133
|
$15,282,410 | +$2,187,739 | 30 Jun 2025 | |
| Larry Madden |
13D/G
3/4/5
|
Chief Financial Officer |
6.9%
|
1,226,769
|
$14,769,931 | +$1,353,082 | 09 Jan 2026 | |
| VANGUARD GROUP INC |
13D/G
13F
|
The Vanguard Group · Company |
6.3%
|
1,035,692
|
$14,365,048 | $0 | 31 Mar 2025 | |
| BlackRock, Inc. |
13F
|
Company |
7.1%
|
1,179,696
|
$14,203,540 | — | 31 Dec 2025 | |
| ROYCE & ASSOCIATES LP |
13F
13D/G
|
Company |
5.5%
from 13D/G
|
912,043
|
$10,980,998 | — | 31 Dec 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
3%
|
493,800
|
$5,945,352 | — | 31 Dec 2025 | |
| Potomac Capital Management, Inc. |
13F
|
Company |
2.6%
|
440,750
|
$5,306,630 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
2.6%
|
429,993
|
$5,177,116 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.2%
|
374,877
|
$4,514,617 | — | 31 Dec 2025 | |
| Topline Capital Management, LLC |
13F
|
Company |
2.2%
|
368,959
|
$4,442,266 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
1.8%
|
306,195
|
$3,686,588 | — | 31 Dec 2025 | |
| Invenomic Capital Management LP |
13F
|
Company |
1.4%
|
228,216
|
$2,747,721 | — | 31 Dec 2025 | |
| TUDOR INVESTMENT CORP ET AL |
13F
|
Company |
1.2%
|
203,159
|
$2,446,034 | — | 31 Dec 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
1.1%
|
177,338
|
$2,135,150 | — | 31 Dec 2025 | |
| Trexquant Investment LP |
13F
|
Company |
0.98%
|
164,001
|
$1,974,572 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.96%
|
159,735
|
$1,923,208 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.89%
|
148,841
|
$1,792,045 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.89%
|
148,003
|
$1,781,956 | — | 31 Dec 2025 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
0.89%
|
147,787
|
$1,779,356 | — | 31 Dec 2025 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
0.88%
|
146,919
|
$1,766,000 | — | 31 Dec 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.88%
|
146,507
|
$1,763,945 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.67%
|
110,942
|
$1,335,742 | — | 31 Dec 2025 | |
| Vivian Yang |
3/4/5
|
Director |
0.56%
|
93,913
|
$1,335,442 | — | 05 Jun 2025 | |
| HARBOR CAPITAL ADVISORS, INC. |
13F
|
Company |
0.64%
|
106,943
|
$1,288,000 | — | 31 Dec 2025 | |
| GLOBEFLEX CAPITAL L P |
13F
|
Company |
0.62%
|
103,977
|
$1,251,883 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.59%
|
99,180
|
$1,194,127 | — | 31 Dec 2025 | |
| Norwood Investment Partners, LP |
13F
|
Company |
0.59%
|
98,511
|
$1,186,072 | — | 31 Dec 2025 | |
| STATE OF WISCONSIN INVESTMENT BOARD |
13F
|
Company |
0.47%
|
78,695
|
$947,488 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.44%
|
73,921
|
$890,009 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.44%
|
73,015
|
$879,101 | — | 31 Dec 2025 | |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P |
13F
|
Company |
0.43%
|
72,500
|
$872,900 | — | 31 Dec 2025 | |
| FEDERATED HERMES, INC. |
13F
|
Company |
0.43%
|
71,872
|
$865,339 | — | 31 Dec 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.43%
|
71,586
|
$861,896 | — | 31 Dec 2025 | |
| Elizabeth Goodman Williams |
3/4/5
|
Director |
—
class O/S missing
|
87,137
|
$828,673 | — | 02 Jun 2024 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.41%
|
68,390
|
$823,416 | — | 31 Dec 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.35%
|
57,649
|
$694,094 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.35%
|
57,570
|
$693,143 | — | 31 Dec 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.34%
|
55,975
|
$673,940 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.32%
|
53,870
|
$648,595 | — | 31 Dec 2025 | |
| GSA CAPITAL PARTNERS LLP |
13F
|
Company |
0.32%
|
53,503
|
$644,000 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.28%
|
47,383
|
$570,492 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.28%
|
47,136
|
$567,517 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.27%
|
45,692
|
$550,131 | — | 31 Dec 2025 | |
| Brett Wilson |
3/4/5
|
Director |
0.22%
|
35,919
|
$510,768 | — | 05 Jun 2025 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
0.22%
|
36,300
|
$437,052 | — | 31 Dec 2025 | |
| Rockefeller Capital Management L.P. |
13F
|
Company |
0.21%
|
35,208
|
$423,904 | — | 31 Dec 2025 | |
| Quantinno Capital Management LP |
13F
|
Company |
0.21%
|
34,357
|
$413,658 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for Viant Technology Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Larry Madden | DSP | Class A Common Stock | Sale | -2.26% | $129,882 | $10.16 | -12,782 | 553,699 | 23 Apr 2026 | Direct |
| Larry Madden | DSP | Class A Common Stock | Sale | -2.29% | $142,427 | $10.74 | -13,263 | 566,481 | 22 Apr 2026 | Direct |
| Capital V LLC | DSP | Class A Common Stock | Sale | -100% | $90,128 | $10.74 | -8,389 | 0 | 22 Apr 2026 | Direct |
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -100% | $30,039 | $10.74 | -2,796 | 0 | 22 Apr 2026 | By Capital V LLC |
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -100% | $30,039 | $10.74 | -2,796 | 0 | 22 Apr 2026 | By Capital V LLC |
| Larry Madden | DSP | Class A Common Stock | Sale | -2.24% | $144,929 | $10.91 | -13,283 | 579,744 | 21 Apr 2026 | Direct |
| Capital V LLC | DSP | Class A Common Stock | Sale | -62.7% | $154,017 | $10.91 | -14,111 | 8,389 | 21 Apr 2026 | Direct |
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -62.7% | $51,343 | $10.91 | -4,704 | 2,796 | 21 Apr 2026 | By Capital V LLC |
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -62.7% | $51,343 | $10.91 | -4,704 | 2,796 | 21 Apr 2026 | By Capital V LLC |
| Capital V LLC | DSP | Class A Common Stock | Sale | -40% | $166,797 | $11.12 | -15,000 | 22,500 | 20 Apr 2026 | Direct |
| Capital V LLC | DSP | Class B Common Stock | Disposed to Issuer | -0.14% | -37,500 | 27,321,826 | 20 Apr 2026 | Direct | ||
| Capital V LLC | DSP | Class A Common Stock | Options Exercise | 37,500 | 37,500 | 20 Apr 2026 | Direct | |||
| Capital V LLC | DSP | Class B Units | Options Exercise | -0.14% | -37,500 | 27,321,826 | 20 Apr 2026 | Direct | ||
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -40% | $55,599 | $11.12 | -5,000 | 7,500 | 20 Apr 2026 | By Capital V LLC |
| Timothy Vanderhook | DSP | Class B Common Stock | Disposed to Issuer | -0.14% | -12,500 | 9,107,275 | 20 Apr 2026 | By Capital V LLC | ||
| Timothy Vanderhook | DSP | Class A Common Stock | Options Exercise | 12,500 | 12,500 | 20 Apr 2026 | By Capital V LLC | |||
| Timothy Vanderhook | DSP | Class B Units | Options Exercise | -0.14% | -12,500 | 9,107,275 | 20 Apr 2026 | By Capital V LLC | ||
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -40% | $55,599 | $11.12 | -5,000 | 7,500 | 20 Apr 2026 | By Capital V LLC |
| Christopher Vanderhook | DSP | Class B Common Stock | Disposed to Issuer | -0.14% | -12,500 | 9,107,275 | 20 Apr 2026 | By Capital V LLC | ||
| Christopher Vanderhook | DSP | Class A Common Stock | Options Exercise | 12,500 | 12,500 | 20 Apr 2026 | By Capital V LLC | |||
| Christopher Vanderhook | DSP | Class B Units | Options Exercise | -0.14% | -12,500 | 9,107,275 | 20 Apr 2026 | By Capital V LLC | ||
| Larry Madden | DSP | Class A Common Stock | Sale | -1.22% | $82,517 | $11.31 | -7,297 | 593,027 | 06 Apr 2026 | Direct |
| Larry Madden | DSP | Class A Common Stock | Sale | -1.66% | $110,881 | $10.94 | -10,131 | 600,324 | 02 Apr 2026 | Direct |
| Larry Madden | DSP | Class A Common Stock | Sale | -1.2% | $83,537 | $11.27 | -7,410 | 610,455 | 01 Apr 2026 | Direct |
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -100% | $33,355 | $11.42 | -2,920 | 0 | 19 Mar 2026 | By Capital V LLC |
| Capital V LLC | DSP | Class A Common Stock | Sale | -100% | $100,065 | $11.42 | -8,760 | 0 | 19 Mar 2026 | Direct |
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -100% | $33,355 | $11.42 | -2,920 | 0 | 19 Mar 2026 | By Capital V LLC |
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -63.1% | $59,993 | $12.00 | -5,000 | 2,920 | 18 Mar 2026 | By Capital V LLC |
| Capital V LLC | DSP | Class A Common Stock | Sale | -63.1% | $179,979 | $12.00 | -15,000 | 8,760 | 18 Mar 2026 | Direct |
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -63.1% | $59,993 | $12.00 | -5,000 | 2,920 | 18 Mar 2026 | By Capital V LLC |
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -38.7% | $58,980 | $11.80 | -5,000 | 7,920 | 17 Mar 2026 | By Capital V LLC |
| Christopher Vanderhook | DSP | Class B Common Stock | Disposed to Issuer | -0.14% | -12,500 | 9,119,775 | 17 Mar 2026 | By Capital V LLC | ||
| Christopher Vanderhook | DSP | Class A Common Stock | Options Exercise | 2976.2% | 12,500 | 12,920 | 17 Mar 2026 | By Capital V LLC | ||
| Christopher Vanderhook | DSP | Class B Units | Options Exercise | -0.14% | -12,500 | 9,119,775 | 17 Mar 2026 | By Capital V LLC | ||
| Capital V LLC | DSP | Class A Common Stock | Sale | -38.7% | $176,938 | $11.80 | -15,000 | 23,760 | 17 Mar 2026 | Direct |
| Capital V LLC | DSP | Class B Common Stock | Disposed to Issuer | -0.14% | -37,500 | 27,359,326 | 17 Mar 2026 | Direct | ||
| Capital V LLC | DSP | Class A Common Stock | Options Exercise | 2976.2% | 37,500 | 38,760 | 17 Mar 2026 | Direct | ||
| Capital V LLC | DSP | Class B Units | Options Exercise | -0.14% | -37,500 | 27,359,326 | 17 Mar 2026 | Direct | ||
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -38.7% | $58,980 | $11.80 | -5,000 | 7,920 | 17 Mar 2026 | By Capital V LLC |
| Timothy Vanderhook | DSP | Class B Common Stock | Disposed to Issuer | -0.14% | -12,500 | 9,119,775 | 17 Mar 2026 | By Capital V LLC | ||
| Timothy Vanderhook | DSP | Class A Common Stock | Options Exercise | 2976.2% | 12,500 | 12,920 | 17 Mar 2026 | By Capital V LLC | ||
| Timothy Vanderhook | DSP | Class B Units | Options Exercise | -0.14% | -12,500 | 9,119,775 | 17 Mar 2026 | By Capital V LLC | ||
| Larry Madden | DSP | Class A Common Stock | Award | 67.6% | 249,258 | 617,865 | 15 Mar 2026 | Direct | ||
| Larry Madden | DSP | Class A Common Stock | Sale | -0.45% | $21,607 | $13.03 | -1,658 | 368,607 | 13 Mar 2026 | Direct |
| Larry Madden | DSP | Class A Common Stock | Tax liability | -8.7% | -35,289 | 370,265 | 10 Mar 2026 | Direct | ||
| Timothy Vanderhook | DSP | Class A Common Stock | Disposed to Issuer | -16.8% | -44,177 | 218,005 | 10 Mar 2026 | Direct | ||
| Christopher Vanderhook | DSP | Class A Common Stock | Disposed to Issuer | -12.7% | -44,177 | 303,005 | 10 Mar 2026 | Direct | ||
| Capital V LLC | DSP | Class A Common Stock | Sale | -88.6% | $90,214 | $9.17 | -9,836 | 1,260 | 19 Feb 2026 | Direct |
| Christopher Vanderhook | DSP | Class A Common Stock | Sale | -88.6% | $30,074 | $9.17 | -3,279 | 420 | 19 Feb 2026 | By Capital V LLC |
| Timothy Vanderhook | DSP | Class A Common Stock | Sale | -88.6% | $30,074 | $9.17 | -3,279 | 420 | 19 Feb 2026 | By Capital V LLC |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.