Follow the people · Insider
Timothy Vanderhook
Timothy Vanderhook files insider transactions with the SEC as a ceo and chairman of Viant Technology (DSP). We hold 22 disclosed purchases and sales filed since 12 February 2021, 7 of them in the last 90 days.
- Files forDSP
- Disclosed buys and sells22 in all, 7 in the last 90 days
- Last disclosure23 July 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 10 February 2021 — 23 July 2026CEO and Chairman · Viant Technology (DSP)116 Form 4 lines · source: SEC Form 4
Everything they disclosed
116 entries, newest first — one per disclosure report, one per Form 4 line- exercised options over 12,500 shares of Viant TechnologySEC Form 423 July 2026Class A Common Stock · traded 21 July 2026 · filed 23 July 2026
- returned to the issuer 12,500 shares of Viant TechnologySEC Form 423 July 2026Class B Common Stock · traded 21 July 2026 · filed 23 July 2026
- ▼ sold on the open market 3,196 shares of Viant TechnologySEC Form 423 July 2026Class A Common Stock · traded 21 July 2026 · filed 23 July 2026
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 423 July 2026Class A Common Stock · traded 22 July 2026 · filed 23 July 2026
- ▼ sold on the open market 4,304 shares of Viant TechnologySEC Form 423 July 2026Class A Common Stock · traded 23 July 2026 · filed 23 July 2026
- exercised options over 12,500 shares of Viant Technology (a derivative holding)SEC Form 423 July 2026Class B Units · traded 21 July 2026 · filed 23 July 2026
- exercised options over 12,500 shares of Viant TechnologySEC Form 418 June 2026Class A Common Stock · traded 16 June 2026 · filed 18 June 2026
- returned to the issuer 12,500 shares of Viant TechnologySEC Form 418 June 2026Class B Common Stock · traded 16 June 2026 · filed 18 June 2026
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 418 June 2026Class A Common Stock · traded 16 June 2026 · filed 18 June 2026
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 418 June 2026Class A Common Stock · traded 17 June 2026 · filed 18 June 2026
- ▼ sold on the open market 2,500 shares of Viant TechnologySEC Form 418 June 2026Class A Common Stock · traded 18 June 2026 · filed 18 June 2026
- exercised options over 12,500 shares of Viant Technology (a derivative holding)SEC Form 418 June 2026Class B Units · traded 16 June 2026 · filed 18 June 2026
- ▼ sold on the open market 9,125 shares of Viant TechnologySEC Form 415 June 2026Class A Common Stock · traded 15 June 2026 · filed 15 June 2026
- gave away 52,096 shares of Viant TechnologySEC Form 410 June 2026Class B Common Stock · traded 9 June 2026 · filed 10 June 2026
- gave away 52,096 shares of Viant Technology (a derivative holding)SEC Form 410 June 2026Class B Units · traded 9 June 2026 · filed 10 June 2026
- gave away 52,096 shares of Viant Technology (a derivative holding)SEC Form 410 June 2026Class B Units · traded 9 June 2026 · filed 10 June 2026
- gave away 52,096 shares of Viant Technology (a derivative holding)SEC Form 410 June 2026Class B Units · traded 9 June 2026 · filed 10 June 2026
- was granted 52,096 shares of Viant Technology (a derivative holding)SEC Form 410 June 2026Class B Units · traded 9 June 2026 · filed 10 June 2026
- was granted 52,096 shares of Viant Technology (a derivative holding)SEC Form 410 June 2026Class B Units · traded 9 June 2026 · filed 10 June 2026
- was granted 52,096 shares of Viant Technology (a derivative holding)SEC Form 410 June 2026Class B Units · traded 9 June 2026 · filed 10 June 2026
- was granted 52,096 shares of Viant Technology (a derivative holding)SEC Form 410 June 2026Class B Units · traded 9 June 2026 · filed 10 June 2026
- gave away 52,096 shares of Viant TechnologySEC Form 410 June 2026Class B Common Stock · traded 9 June 2026 · filed 10 June 2026
- gave away 52,096 shares of Viant TechnologySEC Form 410 June 2026Class B Common Stock · traded 9 June 2026 · filed 10 June 2026
- gave away 52,096 shares of Viant TechnologySEC Form 410 June 2026Class B Common Stock · traded 9 June 2026 · filed 10 June 2026
- was granted 52,096 shares of Viant TechnologySEC Form 410 June 2026Class B Common Stock · traded 9 June 2026 · filed 10 June 2026
- was granted 52,096 shares of Viant TechnologySEC Form 410 June 2026Class B Common Stock · traded 9 June 2026 · filed 10 June 2026
- was granted 52,096 shares of Viant TechnologySEC Form 410 June 2026Class B Common Stock · traded 9 June 2026 · filed 10 June 2026
- was granted 52,096 shares of Viant TechnologySEC Form 410 June 2026Class B Common Stock · traded 9 June 2026 · filed 10 June 2026
- gave away 52,096 shares of Viant Technology (a derivative holding)SEC Form 410 June 2026Class B Units · traded 9 June 2026 · filed 10 June 2026
- exercised options over 12,500 shares of Viant TechnologySEC Form 421 May 2026Class A Common Stock · traded 19 May 2026 · filed 21 May 2026
- returned to the issuer 12,500 shares of Viant TechnologySEC Form 421 May 2026Class B Common Stock · traded 19 May 2026 · filed 21 May 2026
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 421 May 2026Class A Common Stock · traded 19 May 2026 · filed 21 May 2026
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 421 May 2026Class A Common Stock · traded 20 May 2026 · filed 21 May 2026
- ▼ sold on the open market 2,500 shares of Viant TechnologySEC Form 421 May 2026Class A Common Stock · traded 21 May 2026 · filed 21 May 2026
- exercised options over 12,500 shares of Viant Technology (a derivative holding)SEC Form 421 May 2026Class B Units · traded 19 May 2026 · filed 21 May 2026
- exercised options over 12,500 shares of Viant TechnologySEC Form 422 April 2026Class A Common Stock · traded 20 April 2026 · filed 22 April 2026
- returned to the issuer 12,500 shares of Viant TechnologySEC Form 422 April 2026Class B Common Stock · traded 20 April 2026 · filed 22 April 2026
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 422 April 2026Class A Common Stock · traded 20 April 2026 · filed 22 April 2026
- ▼ sold on the open market 4,704 shares of Viant TechnologySEC Form 422 April 2026Class A Common Stock · traded 21 April 2026 · filed 22 April 2026
- ▼ sold on the open market 2,796 shares of Viant TechnologySEC Form 422 April 2026Class A Common Stock · traded 22 April 2026 · filed 22 April 2026
- exercised options over 12,500 shares of Viant Technology (a derivative holding)SEC Form 422 April 2026Class B Units · traded 20 April 2026 · filed 22 April 2026
- exercised options over 12,500 shares of Viant TechnologySEC Form 419 March 2026Class A Common Stock · traded 17 March 2026 · filed 19 March 2026
- returned to the issuer 12,500 shares of Viant TechnologySEC Form 419 March 2026Class B Common Stock · traded 17 March 2026 · filed 19 March 2026
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 419 March 2026Class A Common Stock · traded 17 March 2026 · filed 19 March 2026
- exercised options over 12,500 shares of Viant Technology (a derivative holding)SEC Form 419 March 2026Class B Units · traded 17 March 2026 · filed 19 March 2026
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 419 March 2026Class A Common Stock · traded 18 March 2026 · filed 19 March 2026
- ▼ sold on the open market 2,920 shares of Viant TechnologySEC Form 419 March 2026Class A Common Stock · traded 19 March 2026 · filed 19 March 2026
- exercised options over 12,500 shares of Viant Technology (a derivative holding)SEC Form 419 March 2026Class B Units · traded 17 March 2026 · filed 19 March 2026
- exercised options over 12,500 shares of Viant TechnologySEC Form 419 March 2026Class A Common Stock · traded 17 March 2026 · filed 19 March 2026
- returned to the issuer 12,500 shares of Viant TechnologySEC Form 419 March 2026Class B Common Stock · traded 17 March 2026 · filed 19 March 2026
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 419 March 2026Class A Common Stock · traded 17 March 2026 · filed 19 March 2026
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 419 March 2026Class A Common Stock · traded 18 March 2026 · filed 19 March 2026
- ▼ sold on the open market 2,920 shares of Viant TechnologySEC Form 419 March 2026Class A Common Stock · traded 19 March 2026 · filed 19 March 2026
- returned to the issuer 44,177 shares of Viant TechnologySEC Form 412 March 2026Class A Common Stock · traded 10 March 2026 · filed 12 March 2026
- returned to the issuer 44,177 shares of Viant TechnologySEC Form 412 March 2026Class A Common Stock · traded 10 March 2026 · filed 12 March 2026
- exercised options over 12,500 shares of Viant TechnologySEC Form 419 February 2026Class A Common Stock · traded 17 February 2026 · filed 19 February 2026
- returned to the issuer 12,500 shares of Viant TechnologySEC Form 419 February 2026Class B Common Stock · traded 17 February 2026 · filed 19 February 2026
- ▼ sold on the open market 4,079 shares of Viant TechnologySEC Form 419 February 2026Class A Common Stock · traded 17 February 2026 · filed 19 February 2026
- exercised options over 12,500 shares of Viant Technology (a derivative holding)SEC Form 419 February 2026Class B Units · traded 17 February 2026 · filed 19 February 2026
- ▼ sold on the open market 4,722 shares of Viant TechnologySEC Form 419 February 2026Class A Common Stock · traded 18 February 2026 · filed 19 February 2026
- ▼ sold on the open market 3,279 shares of Viant TechnologySEC Form 419 February 2026Class A Common Stock · traded 19 February 2026 · filed 19 February 2026
- exercised options over 12,500 shares of Viant Technology (a derivative holding)SEC Form 419 February 2026Class B Units · traded 17 February 2026 · filed 19 February 2026
- exercised options over 12,500 shares of Viant TechnologySEC Form 419 February 2026Class A Common Stock · traded 17 February 2026 · filed 19 February 2026
- returned to the issuer 12,500 shares of Viant TechnologySEC Form 419 February 2026Class B Common Stock · traded 17 February 2026 · filed 19 February 2026
- ▼ sold on the open market 4,079 shares of Viant TechnologySEC Form 419 February 2026Class A Common Stock · traded 17 February 2026 · filed 19 February 2026
- ▼ sold on the open market 4,722 shares of Viant TechnologySEC Form 419 February 2026Class A Common Stock · traded 18 February 2026 · filed 19 February 2026
- ▼ sold on the open market 3,279 shares of Viant TechnologySEC Form 419 February 2026Class A Common Stock · traded 19 February 2026 · filed 19 February 2026
- exercised options over 12,500 shares of Viant TechnologySEC Form 422 January 2026Class A Common Stock · traded 20 January 2026 · filed 22 January 2026
- returned to the issuer 12,500 shares of Viant TechnologySEC Form 422 January 2026Class B Common Stock · traded 20 January 2026 · filed 22 January 2026
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 422 January 2026Class A Common Stock · traded 20 January 2026 · filed 22 January 2026
- exercised options over 12,500 shares of Viant Technology (a derivative holding)SEC Form 422 January 2026Class B Units · traded 20 January 2026 · filed 22 January 2026
- ▼ sold on the open market 4,926 shares of Viant TechnologySEC Form 422 January 2026Class A Common Stock · traded 21 January 2026 · filed 22 January 2026
- ▼ sold on the open market 2,574 shares of Viant TechnologySEC Form 422 January 2026Class A Common Stock · traded 22 January 2026 · filed 22 January 2026
- exercised options over 12,500 shares of Viant Technology (a derivative holding)SEC Form 422 January 2026Class B Units · traded 20 January 2026 · filed 22 January 2026
- exercised options over 12,500 shares of Viant TechnologySEC Form 422 January 2026Class A Common Stock · traded 20 January 2026 · filed 22 January 2026
- returned to the issuer 12,500 shares of Viant TechnologySEC Form 422 January 2026Class B Common Stock · traded 20 January 2026 · filed 22 January 2026
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 422 January 2026Class A Common Stock · traded 20 January 2026 · filed 22 January 2026
- ▼ sold on the open market 4,926 shares of Viant TechnologySEC Form 422 January 2026Class A Common Stock · traded 21 January 2026 · filed 22 January 2026
- ▼ sold on the open market 2,574 shares of Viant TechnologySEC Form 422 January 2026Class A Common Stock · traded 22 January 2026 · filed 22 January 2026
- ▼ sold on the open market 2,500 shares of Viant TechnologySEC Form 419 December 2025Class A Common Stock · traded 19 December 2025 · filed 19 December 2025
- exercised options over 12,500 shares of Viant Technology (a derivative holding)SEC Form 418 December 2025Class B Units · traded 16 December 2025 · filed 18 December 2025
- exercised options over 12,500 shares of Viant TechnologySEC Form 418 December 2025Class A Common Stock · traded 16 December 2025 · filed 18 December 2025
- returned to the issuer 12,500 shares of Viant TechnologySEC Form 418 December 2025Class B Common Stock · traded 16 December 2025 · filed 18 December 2025
- ▼ sold on the open market 9,102 shares of Viant TechnologySEC Form 418 December 2025Class A Common Stock · traded 17 December 2025 · filed 18 December 2025
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 418 December 2025Class A Common Stock · traded 17 December 2025 · filed 18 December 2025
- ▼ sold on the open market 5,000 shares of Viant TechnologySEC Form 418 December 2025Class A Common Stock · traded 18 December 2025 · filed 18 December 2025
- gave away 85,000 shares of Viant TechnologySEC Form 418 December 2025Class A Common Stock · traded 18 December 2025 · filed 18 December 2025
- exercised options over 313,926 shares of Viant Technology (a derivative holding)SEC Form 417 September 2025Class B Units · traded 16 September 2025 · filed 17 September 2025
- ▼ sold on the open market 8,782 shares of Viant TechnologySEC Form 417 September 2025Class A Common Stock · traded 15 September 2025 · filed 17 September 2025
- exercised options over 313,926 shares of Viant TechnologySEC Form 417 September 2025Class A Common Stock · traded 16 September 2025 · filed 17 September 2025
- returned to the issuer 313,926 shares of Viant TechnologySEC Form 417 September 2025Class B Common Stock · traded 16 September 2025 · filed 17 September 2025
- returned to the issuer 313,926 shares of Viant TechnologySEC Form 417 September 2025Class A Common Stock · traded 17 September 2025 · filed 17 September 2025
- ▼ sold on the open market 8,960 shares of Viant TechnologySEC Form 413 June 2025Class A Common Stock · traded 13 June 2025 · filed 13 June 2025
- returned to the issuer 92,204 shares of Viant TechnologySEC Form 411 March 2025Class A Common Stock · traded 10 March 2025 · filed 11 March 2025
- exercised options over 203,527 shares of Viant Technology (a derivative holding)SEC Form 420 December 2024Non-qualified Stock Option (Right to Buy) · traded 19 December 2024 · filed 20 December 2024
- gave away 31,556 shares of Viant TechnologySEC Form 420 December 2024Class A Common Stock · traded 18 December 2024 · filed 20 December 2024
- exercised options over 203,527 shares of Viant TechnologySEC Form 420 December 2024Class A Common Stock · traded 19 December 2024 · filed 20 December 2024
- had shares withheld for tax on 47,115 shares of Viant TechnologySEC Form 420 December 2024Class A Common Stock · traded 19 December 2024 · filed 20 December 2024
- returned to the issuer 156,412 shares of Viant TechnologySEC Form 420 December 2024Class A Common Stock · traded 19 December 2024 · filed 20 December 2024
- returned to the issuer 8,636 shares of Viant TechnologySEC Form 412 December 2024Class A Common Stock · traded 10 December 2024 · filed 12 December 2024
- returned to the issuer 8,636 shares of Viant TechnologySEC Form 412 September 2024Class A Common Stock · traded 10 September 2024 · filed 12 September 2024
- returned to the issuer 8,529 shares of Viant TechnologySEC Form 412 June 2024Class A Common Stock · traded 10 June 2024 · filed 12 June 2024
- was granted 96,363 shares of Viant Technology (a derivative holding)SEC Form 419 March 2024Non-qualified Stock Option (Right to Buy) · traded 15 March 2024 · filed 19 March 2024
- was granted 194,384 shares of Viant TechnologySEC Form 419 March 2024Class A Common Stock · traded 15 March 2024 · filed 19 March 2024
- returned to the issuer 82,534 shares of Viant TechnologySEC Form 412 March 2024Class A Common Stock · traded 10 March 2024 · filed 12 March 2024
- was granted 381,632 shares of Viant Technology (a derivative holding)SEC Form 414 March 2023Non-qualified Stock Option (Right to Buy) · traded 7 March 2023 · filed 14 March 2023
- was granted 180,180 shares of Viant TechnologySEC Form 414 March 2023Class A Common Stock · traded 7 March 2023 · filed 14 March 2023
- returned to the issuer 35,100 shares of Viant TechnologySEC Form 414 March 2023Class A Common Stock · traded 10 March 2023 · filed 14 March 2023
- was granted 472,813 shares of Viant Technology (a derivative holding)SEC Form 417 March 2022Non-qualified Stock Option (Right to Buy) · traded 15 March 2022 · filed 17 March 2022
- was granted 266,667 shares of Viant TechnologySEC Form 417 March 2022Class A Common Stock · traded 15 March 2022 · filed 17 March 2022
- exercised options over 250,625 shares of Viant Technology (a derivative holding)SEC Form 412 February 2021Class B Units · traded 10 February 2021 · filed 12 February 2021
- exercised options over 303,411 shares of Viant Technology (a derivative holding)SEC Form 412 February 2021Class B Units · traded 10 February 2021 · filed 12 February 2021
- exercised options over 250,625 shares of Viant TechnologySEC Form 412 February 2021Class A Common Stock · traded 10 February 2021 · filed 12 February 2021
- ▼ sold on the open market 250,625 shares of Viant TechnologySEC Form 412 February 2021Class A Common Stock · traded 10 February 2021 · filed 12 February 2021
- exercised options over 303,411 shares of Viant TechnologySEC Form 412 February 2021Class A Common Stock · traded 10 February 2021 · filed 12 February 2021
- ▼ sold on the open market 303,411 shares of Viant TechnologySEC Form 412 February 2021Class A Common Stock · traded 10 February 2021 · filed 12 February 2021
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.