MCRB SEC Form 4 filings
Seres Therapeutics, Inc. Latest Insider Trading Activity
Our insider trading activity tracker for Seres Therapeutics, Inc. shows 10 total open-market insider transactions for MCRB over the past 701 days. The most recent displayed transaction was on May 18, 2026, when Shaff Eric D. (Seres Therapeutics, Inc. Director) reported a sale of 259 shares at $7.53 per share. This page shows up to the 10 most recent SEC Form 4 filing records on a 6-hour delay. Sign up for real-time updates and access to 20 years of historic insider trading data.
Insider Trading For MCRB Charted on Daily Candles. Scroll left or zoom out to load earlier candles (up to 2 years).
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| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10b5-1: Scheduled Form 4 Transaction MCRB | 2026-05-19 | 2026-05-18 | Seres Therapeutics, Inc. | Shaff Eric D. | Director | Sell | 1 | 259 | $7.53 | $1,950.27 | 2.11% | View Filing |
| Tax liability coverage transfers: shares are often sold to offset the tax liability from shares vesting MCRB | 2026-05-19 | 2026-05-18 | Seres Therapeutics, Inc. | Brady Kelly | Officer | Sell | 1 | 59 | $7.53 | $444.27 | 0.68% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MCRB | 2026-05-19 | 2026-05-18 | Seres Therapeutics, Inc. | Desrosier Thomas | Officer | Sell | 1 | 79 | $7.53 | $594.87 | 0.98% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MCRB | 2026-05-19 | 2026-05-18 | Seres Therapeutics, Inc. | Henn Matthew R | Officer | Sell | 1 | 77 | $7.53 | $579.81 | 0.97% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MCRB | 2026-02-18 | 2026-02-15 | Seres Therapeutics, Inc. | Young Teresa L. | Officer | Sell | 1 | 75 | $8.47 | $635.25 | 0.87% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MCRB | 2026-02-18 | 2026-02-15 | Seres Therapeutics, Inc. | Shaff Eric D. | Director | Sell | 1 | 259 | $8.47 | $2,193.73 | 2.19% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MCRB | 2025-02-19 | 2025-02-18 | Seres Therapeutics, Inc. | Shaff Eric D. | CEO and President | Sell | 1 | 12,726 | $0.81 | $10,308.06 | 6.21% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MCRB | 2025-02-19 | 2025-02-18 | Seres Therapeutics, Inc. | Desrosier Thomas | Chief Legal Officer and EVP | Sell | 1 | 4,300 | $0.81 | $3,483.00 | 2.93% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MCRB | 2025-02-19 | 2025-02-18 | Seres Therapeutics, Inc. | Von Moltke Lisa | Officer | Sell | 1 | 4,416 | $0.81 | $3,576.96 | 9.97% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MCRB | 2024-11-19 | 2024-11-18 | Seres Therapeutics, Inc. | Young Teresa L. | Officer | Sell | 1 | 735 | $0.54 | $396.90 | 0.81% | View Filing |
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Alerts are based on public SEC filings and are provided for informational purposes only; they do not constitute financial advice.