William A. Zartler
Known title: CHAIRMAN AND CEOCIK: 0001520378
William A. Zartler's purchase track record
How the stock did after each of William A. Zartler's open-market purchases, measured from the purchase date. Several fills within a week count as one purchase.
Purchases measured
7
of 7 since November 22, 2021
Stock higher 6 months later
86%
3 months: 71%
Median 6-month return
+93.5%
3 months: +25.5%
Beat the S&P 500
71%
median +92.8% vs. index
| Purchase | Stock | Amount | 3 months | 6 months | S&P 500, 6 mo. |
|---|---|---|---|---|---|
| 9/9/2025 | SEI | $248K | +116.7% | +118.6% | +4.1% |
| 5/21/2025 | SEI | $218K | +25.5% | +106.5% | +13.7% |
| 3/7/2025 | SEI | $232K | +26.1% | +11.2% | +12.3% |
| 9/15/2022 | SEI | $105K | -3.5% | -15.4% | +1.5% |
| 5/9/2022 | SEI | $77K | -1.7% | +16.9% | -4.6% |
| 12/7/2021 | SEI | $66K | +71.3% | +119.8% | -11.2% |
| 11/22/2021 | SEI | $101K | +23.0% | +93.5% | -15.1% |
Computed by MarketWall from SEC Form 4 filings and daily closing prices (close on the purchase date to the close about 3 and 6 months later). Companies that have since delisted are not included. Past results, not investment advice.
Associated companies
Transaction History
| SEI | ▲ Buy | Grant | 150,000 | $0 | 3/1/2026 | View on chart |
| SEI | ▲ Buy | Grant | 115,656 | $0 | 3/1/2026 | View on chart |
| SEI | ▲ Buy | Open Market | 10,000 | $248K | 9/9/2025 | View on chart |
| SEI | ▲ Buy | Open Market | 10,000 | $218K | 5/21/2025 | View on chart |
| SEI | ▲ Buy | Open Market | 10,000 | $232K | 3/7/2025 | View on chart |
| SEI | ▲ Buy | Grant | 10,000 | $241K | 3/6/2025 | View on chart |
| SEI | ▲ Buy | Grant | 225,378 | $0 | 3/1/2025 | View on chart |
| SEI | ▼ Sell | Tax Withholding | 81,114 | $2.8M | 3/1/2025 | View on chart |
| SEI | ▼ Sell | Tax Withholding | 52,588 | $445K | 3/1/2024 | View on chart |
| SEI | ▲ Buy | Grant | 267,411 | $0 | 3/1/2024 | View on chart |
| SEI | ▲ Buy | Grant | 150,000 | $0 | 3/1/2023 | View on chart |
| SEI | ▼ Sell | Tax Withholding | 38,035 | $340K | 3/1/2023 | View on chart |
| SEI | ▼ Sell | Open Market | 23,000 | $219K | 12/16/2022 | View on chart |
| SEI | ▲ Buy | Open Market | 10,000 | $105K | 9/15/2022 | View on chart |
| SEI | ▲ Buy | Open Market | 7,000 | $77K | 5/9/2022 | View on chart |
| SEI | ▲ Buy | Grant | 222,646 | $0 | 3/1/2022 | View on chart |
| SEI | ▼ Sell | Tax Withholding | 22,132 | $230K | 3/1/2022 | View on chart |
| SEI | ▲ Buy | Open Market | 10,000 | $66K | 12/7/2021 | View on chart |
| SEI | ▲ Buy | Open Market | 15,000 | $101K | 11/22/2021 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 10, 2026
Solaris Energy Q2 2026 earnings call highlights steady AI demand
Solaris Energy held its Q2 2026 earnings call, reviewing recent results. The CEO said higher interest rates have not slowed demand from AI data center customers. Analysts have projected notable upside potential for the stock, while recent market moves saw SEI shares decline alongside other energy companies.
Solaris Energy Q2 2026 earnings call highlights steady AI demand. Solaris Energy held its Q2 2026 earnings call, reviewing recent results. The CEO said higher interest rates have not slowed demand from AI data center customers. Analysts have projected notable upside potential for the stock, while recent market moves saw SEI shares decline alongside other energy companies.