WaveMan · Form 4
Shaff Eric D. insider trades
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Shaff Eric D. insider trades

Shaff Eric D. has filed 21 Form 4s with the SEC that we hold, for Seres Therapeutics, Inc. (MCRB) (Director) and SGTX (Director). Across all of them we count 0 purchases worth $0 and 13 sales worth $60.4K reported on Form 4. In the last 12 months: 0 purchases ($0) and 4 sales ($9.1K). The largest single trade was a sale of 11,549 shares of Seres Therapeutics, Inc. worth $12.5K, dated 2024-02-16. The first filing on our record is dated 2022-02-08 and the latest 2026-08-18.

Seres Therapeutics, Inc. (MCRB)

Director · 18 filings · 13 purchases and sales
Trade dateCodeSharesValue as filedFiled
2023-10-30S, sale reported on Form 48,552$11.5K2023-10-31
2024-02-16S, sale reported on Form 411,549$12.5K2024-02-16
2024-05-15S, sale reported on Form 42,435$2.3K2024-05-17
2024-08-16S, sale reported on Form 42,518$2.1K2024-08-19
2024-10-28S, sale reported on Form 48,748$6.0K2024-10-29
2024-11-18S, sale reported on Form 42,505$1.4K2024-11-19
2025-02-18S, sale reported on Form 412,726$10.3K2025-02-19
2025-05-16S, sale reported on Form 4220$1.6K2025-05-19
2025-08-18S, sale reported on Form 4217$3.6K2025-08-19
2025-11-15S, sale reported on Form 4217$3.8K2025-11-18
2026-02-15S, sale reported on Form 4259$2.2K2026-02-18
2026-05-18S, sale reported on Form 4259$2.0K2026-05-19
2026-08-17S, sale reported on Form 4263$1.2K2026-08-18

SGTX

Director · 3 filings · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1643734) 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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