Follow the people · Insider
Michael Peterson
Michael Peterson files insider transactions with the SEC as an executive vice president of Sei Investments Co (SEIC). We hold 3 disclosed purchases and sales filed since 11 December 2019, 2 of them in the last 90 days.
- Files forSEIC
- Disclosed buys and sells3 in all, 2 in the last 90 days
- Last disclosure1 September 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 18 June 2018 — 28 August 2026Executive Vice President · Sei Investments Co (SEIC)59 Form 4 lines · source: SEC Form 4
Everything they disclosed
59 entries, newest first — one per disclosure report, one per Form 4 line- exercised options over 37,500 shares of Sei Investments CoSEC Form 41 September 2026Common Stock · traded 28 August 2026 · filed 1 September 2026
- ▼ sold on the open market 37,500 shares of Sei Investments CoSEC Form 41 September 2026Common Stock · traded 28 August 2026 · filed 1 September 2026
- exercised options over 37,500 shares of Sei Investments Co (a derivative holding)SEC Form 41 September 2026Option to Purchase Common Stock · traded 28 August 2026 · filed 1 September 2026
- exercised options over 25,000 shares of Sei Investments CoSEC Form 430 July 2026Common Stock · traded 28 July 2026 · filed 30 July 2026
- ▼ sold on the open market 25,000 shares of Sei Investments CoSEC Form 430 July 2026Common Stock · traded 28 July 2026 · filed 30 July 2026
- exercised options over 25,000 shares of Sei Investments Co (a derivative holding)SEC Form 430 July 2026Option to Purchase Common Stock · traded 28 July 2026 · filed 30 July 2026
- exercised options over 10,000 shares of Sei Investments CoSEC Form 423 April 2026Common Stock · traded 23 April 2026 · filed 23 April 2026
- ▼ sold on the open market 10,000 shares of Sei Investments CoSEC Form 423 April 2026Common Stock · traded 23 April 2026 · filed 23 April 2026
- exercised options over 10,000 shares of Sei Investments Co (a derivative holding)SEC Form 423 April 2026Option to Purchase Common Stock · traded 23 April 2026 · filed 23 April 2026
- had shares withheld for tax on 1,063 shares of Sei Investments CoSEC Form 429 December 2025Common Stock · traded 5 December 2025 · filed 29 December 2025
- was granted 43,000 shares of Sei Investments Co (a derivative holding)SEC Form 416 December 2025Option to Purchase Common Stock · traded 12 December 2025 · filed 16 December 2025
- was granted 7,711 shares of Sei Investments CoSEC Form 416 December 2025Common Stock · traded 12 December 2025 · filed 16 December 2025
- exercised options over 25,000 shares of Sei Investments Co (a derivative holding)SEC Form 413 November 2025Option to Purchase Common Stock · traded 12 November 2025 · filed 13 November 2025
- exercised options over 25,000 shares of Sei Investments CoSEC Form 413 November 2025Common Stock · traded 12 November 2025 · filed 13 November 2025
- ▼ sold on the open market 25,000 shares of Sei Investments CoSEC Form 413 November 2025Common Stock · traded 12 November 2025 · filed 13 November 2025
- exercised options over 7,089 shares of Sei Investments Co (a derivative holding)SEC Form 48 August 2025Option to Purchase Common Stock · traded 7 August 2025 · filed 8 August 2025
- exercised options over 7,089 shares of Sei Investments CoSEC Form 48 August 2025Common Stock · traded 7 August 2025 · filed 8 August 2025
- ▼ sold on the open market 7,089 shares of Sei Investments CoSEC Form 48 August 2025Common Stock · traded 7 August 2025 · filed 8 August 2025
- exercised options over 684 shares of Sei Investments Co (a derivative holding)SEC Form 46 August 2025Option to Purchase Common Stock · traded 5 August 2025 · filed 6 August 2025
- exercised options over 684 shares of Sei Investments CoSEC Form 46 August 2025Common Stock · traded 5 August 2025 · filed 6 August 2025
- ▼ sold on the open market 684 shares of Sei Investments CoSEC Form 46 August 2025Common Stock · traded 5 August 2025 · filed 6 August 2025
- exercised options over 4,727 shares of Sei Investments Co (a derivative holding)SEC Form 44 August 2025Option to Purchase Common Stock · traded 31 July 2025 · filed 4 August 2025
- exercised options over 4,727 shares of Sei Investments CoSEC Form 44 August 2025Common Stock · traded 31 July 2025 · filed 4 August 2025
- ▼ sold on the open market 4,727 shares of Sei Investments CoSEC Form 44 August 2025Common Stock · traded 31 July 2025 · filed 4 August 2025
- exercised options over 37,500 shares of Sei Investments Co (a derivative holding)SEC Form 416 May 2025Option to Purchase Common Stock · traded 15 May 2025 · filed 16 May 2025
- exercised options over 12,500 shares of Sei Investments Co (a derivative holding)SEC Form 416 May 2025COMMON STOCK ( RIGHT TO PURCHASE) · traded 15 May 2025 · filed 16 May 2025
- exercised options over 37,500 shares of Sei Investments CoSEC Form 416 May 2025Common Stock · traded 15 May 2025 · filed 16 May 2025
- exercised options over 12,500 shares of Sei Investments CoSEC Form 416 May 2025Common Stock · traded 15 May 2025 · filed 16 May 2025
- ▼ sold on the open market 50,000 shares of Sei Investments CoSEC Form 416 May 2025Common Stock · traded 15 May 2025 · filed 16 May 2025
- was granted 36,000 shares of Sei Investments Co (a derivative holding)SEC Form 416 December 2024Option to Purchase Common Stock · traded 12 December 2024 · filed 16 December 2024
- was granted 7,000 shares of Sei Investments CoSEC Form 416 December 2024Common Stock · traded 12 December 2024 · filed 16 December 2024
- exercised options over 10,000 shares of Sei Investments Co (a derivative holding)SEC Form 48 November 2024Option to Purchase Common Stock · traded 6 November 2024 · filed 8 November 2024
- exercised options over 10,000 shares of Sei Investments CoSEC Form 48 November 2024Common Stock · traded 6 November 2024 · filed 8 November 2024
- ▼ sold on the open market 10,000 shares of Sei Investments CoSEC Form 48 November 2024Common Stock · traded 6 November 2024 · filed 8 November 2024
- exercised options over 25,000 shares of Sei Investments Co (a derivative holding)SEC Form 429 October 2024Option to Purchase Common Stock · traded 25 October 2024 · filed 29 October 2024
- exercised options over 25,000 shares of Sei Investments CoSEC Form 429 October 2024Common Stock · traded 25 October 2024 · filed 29 October 2024
- ▼ sold on the open market 20,438 shares of Sei Investments CoSEC Form 429 October 2024Common Stock · traded 25 October 2024 · filed 29 October 2024
- ▼ sold on the open market 4,562 shares of Sei Investments CoSEC Form 429 October 2024Common Stock · traded 25 October 2024 · filed 29 October 2024
- was granted 12,500 shares of Sei Investments Co (a derivative holding)SEC Form 419 December 2023Option to Purchase Common Stock · traded 15 December 2023 · filed 19 December 2023
- was granted 12,500 shares of Sei Investments Co (a derivative holding)SEC Form 419 December 2023Option to Purchase Common Stock · traded 15 December 2023 · filed 19 December 2023
- was granted 4,000 shares of Sei Investments CoSEC Form 419 December 2023Common Stock · traded 15 December 2023 · filed 19 December 2023
- exercised options over 25,000 shares of Sei Investments Co (a derivative holding)SEC Form 421 September 2023Option to Purchase Common Stock · traded 19 September 2023 · filed 21 September 2023
- exercised options over 25,000 shares of Sei Investments CoSEC Form 421 September 2023Common Stock · traded 19 September 2023 · filed 21 September 2023
- ▼ sold on the open market 25,000 shares of Sei Investments CoSEC Form 421 September 2023Common Stock · traded 19 September 2023 · filed 21 September 2023
- was granted 100,000 shares of Sei Investments Co (a derivative holding)SEC Form 43 August 2023Option to Purchase Common Stock · traded 18 June 2018 · filed 3 August 2023
- was granted 100,000 shares of Sei Investments Co (a derivative holding)SEC Form 43 August 2023Option to Purchase Common Stock · traded 18 June 2018 · filed 3 August 2023
- was granted 25,000 shares of Sei Investments Co (a derivative holding)SEC Form 43 August 2023Option to Purchase Common Stock · traded 18 June 2019 · filed 3 August 2023
- was granted 25,000 shares of Sei Investments Co (a derivative holding)SEC Form 43 August 2023Option to Purchase Common Stock · traded 18 June 2019 · filed 3 August 2023
- was granted 25,000 shares of Sei Investments Co (a derivative holding)SEC Form 43 August 2023Option to Purchase Common Stock · traded 18 June 2020 · filed 3 August 2023
- was granted 25,000 shares of Sei Investments Co (a derivative holding)SEC Form 43 August 2023Option to Purchase Common Stock · traded 18 June 2020 · filed 3 August 2023
- exercised options over 10,000 shares of Sei Investments Co (a derivative holding)SEC Form 431 July 2023Option to Purchase Common Stock · traded 28 July 2023 · filed 31 July 2023
- exercised options over 10,000 shares of Sei Investments CoSEC Form 431 July 2023Common Stock · traded 28 July 2023 · filed 31 July 2023
- ▼ sold on the open market 10,000 shares of Sei Investments CoSEC Form 431 July 2023Common Stock · traded 28 July 2023 · filed 31 July 2023
- was granted 12,500 shares of Sei Investments Co (a derivative holding)SEC Form 428 February 2023Option to Purchase Common Stock · traded 5 December 2022 · filed 28 February 2023
- was granted 12,500 shares of Sei Investments Co (a derivative holding)SEC Form 428 February 2023Option to Purchase Common Stock · traded 5 December 2022 · filed 28 February 2023
- was granted 2,500 shares of Sei Investments CoSEC Form 428 February 2023Common Stock · traded 5 December 2022 · filed 28 February 2023
- exercised options over 25,000 shares of Sei Investments Co (a derivative holding)SEC Form 414 December 2021COMMON STOCK ( RIGHT TO PURCHASE) · traded 10 December 2021 · filed 14 December 2021
- exercised options over 75,000 shares of Sei Investments Co (a derivative holding)SEC Form 410 December 2020STOCK OPTION (RIGHT TO PURCHASE) · traded 8 December 2020 · filed 10 December 2020
- exercised options over 20,000 shares of Sei Investments Co (a derivative holding)SEC Form 411 December 2019STOCK OPTION (RIGHT TO PURCHASE) · traded 9 December 2019 · filed 11 December 2019
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.