WaveMan · Form 4
Chaouki Steven M insider trades
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Chaouki Steven M insider trades

Chaouki Steven M has filed 73 Form 4s with the SEC that we hold, for TransUnion (TRU) (President, US Markets) and MAIA Biotechnology, Inc. (MAIA) (Director). Across all of them we count 4 purchases worth $170.9K and 36 sales worth $5.2M reported on Form 4. In the last 12 months: 1 purchase ($49.8K) and 10 sales ($2.6M). The largest single trade was a sale of 10,000 shares of TransUnion worth $726.4K, dated 2026-07-01. Of 1 sale filed since we began reading the 10b5-1 checkbox, 1 (100%) was marked as made under a 10b5-1 trading plan. The first filing on our record is dated 2022-02-22 and the latest 2026-10-02.

TransUnion (TRU)

President, US Markets · 54 filings · 36 purchases and sales
Trade dateCodeSharesValue as filedFiled
2023-05-18S, sale reported on Form 41,792$125.4K2023-05-22
2023-05-22S, sale reported on Form 4951$67.1K2023-05-24
2023-06-22S, sale reported on Form 4951$70.1K2023-06-23
2023-07-24S, sale reported on Form 4951$76.4K2023-07-26
2023-08-22S, sale reported on Form 4949$73.1K2023-08-23
2023-09-01S, sale reported on Form 41,277$104.8K2023-09-05
2023-10-02S, sale reported on Form 41,276$91.1K2023-10-03
2024-03-05S, sale reported on Form 41,775$139.5K2024-03-06
2024-04-01S, sale reported on Form 41,775$144.3K2024-04-02
2024-05-01S, sale reported on Form 41,776$129.9K2024-05-03
2024-06-03S, sale reported on Form 41,776$127.9K2024-06-04
2024-07-01S, sale reported on Form 41,000$74.3K2024-07-02
2024-08-01S, sale reported on Form 41,000$90.1K2024-08-05
2024-09-03S, sale reported on Form 41,000$95.7K2024-09-05
2024-11-08S, sale reported on Form 41,500$158.5K2024-11-12
2024-12-02S, sale reported on Form 41,500$151.1K2024-12-04
2025-01-02S, sale reported on Form 41,000$93.6K2025-01-03
2025-02-03S, sale reported on Form 41,000$96.0K2025-02-04
2025-03-03S, sale reported on Form 41,000$92.0K2025-03-04
2025-04-01S, sale reported on Form 41,000$83.3K2025-04-03
2025-05-01S, sale reported on Form 41,000$83.0K2025-05-02
2025-06-02S, sale reported on Form 41,000$84.9K2025-06-03
2025-07-01S, sale reported on Form 41,000$87.1K2025-07-02
2025-08-08S, sale reported on Form 41,000$91.2K2025-08-11
2025-09-02S, sale reported on Form 41,000$86.1K2025-09-03
2025-10-01S, sale reported on Form 41,000$83.2K2025-10-03
2025-11-03S, sale reported on Form 41,000$80.5K2025-11-04
2025-12-01S, sale reported on Form 41,000$84.0K2025-12-02
2026-01-02S, sale reported on Form 41,000$85.7K2026-01-05
2026-03-02S, sale reported on Form 45,000$383.2K2026-03-03
2026-04-02S, sale reported on Form 45,000$350.0K2026-04-06
2026-05-01S, sale reported on Form 45,000$359.7K2026-05-04
2026-06-01S, sale reported on Form 45,000$353.6K2026-06-03
2026-07-01S, sale reported on Form 410,000$726.4K2026-07-02
2026-08-03S, sale reported on Form 41,000$80.0K2026-08-04
2026-09-01S, sale reported on Form 41,000$84.4K2026-09-03

MAIA Biotechnology, Inc. (MAIA)

Director · 20 filings · 4 purchases and sales
Trade dateCodeSharesValue as filedFiled
2022-08-01P, purchase reported on Form 45,000$25.0K2022-08-02
2024-03-14P, purchase reported on Form 434,641$40.5K2024-03-18
2024-11-01P, purchase reported on Form 422,133$55.6K2024-11-04
2025-12-22P, purchase reported on Form 440,849$49.8K2025-12-23
Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1776865) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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