MCRB Seres Therapeutics, Inc.
Nasdaq · SEC CIK 1609809 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $54.9K 16 sales by 5 insiders
- Filings on record
- 171 since 2022-02-08, latest 2026-08-18 17:33
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Henn Matthew R | See Remarks | — | $23.4K |
| Young Teresa L. | See Remarks | — | $18.7K |
| Shaff Eric D. | Dir | — | $9,095 |
| DesRosier Thomas | See Remarks | — | $2,943 |
| Brady Kelly | See Remarks | — | $735.47 |
Transactions 152
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-08-18 17:33 | 2026-08-15 | MCRB | Brady Kelly | See Remarks | M - OptEx | — | +181 | 8,743 | +2% | — |
| DT | 2026-08-18 17:33 | 2026-08-17 | MCRB | Brady Kelly | See Remarks | S - Sale+OE | $4.55 | -64 | 8,679 | -0.7% | -$291.20 |
| DT | 2026-08-18 17:27 | 2026-08-15 | MCRB | Shaff Eric D. | Dir | M - OptEx | — | +722 | 12.8K | +6% | — |
| DT | 2026-08-18 17:27 | 2026-08-17 | MCRB | Shaff Eric D. | Dir | S - Sale+OE | $4.55 | -263 | 12.5K | -2% | -$1,197 |
| DT | 2026-08-18 17:25 | 2026-08-15 | MCRB | Henn Matthew R | See Remarks | M - OptEx | — | +238 | 8,076 | +3% | — |
| DT | 2026-08-18 17:25 | 2026-08-17 | MCRB | Henn Matthew R | See Remarks | S - Sale+OE | $4.55 | -81 | 7,995 | -1% | -$368.55 |
| DT | 2026-08-18 17:22 | 2026-08-15 | MCRB | DesRosier Thomas | See Remarks | M - OptEx | — | +245 | 8,199 | +3% | — |
| DT | 2026-08-18 17:22 | 2026-08-17 | MCRB | DesRosier Thomas | See Remarks | S - Sale+OE | $4.55 | -82 | 8,117 | -1% | -$373.10 |
| DT | 2026-05-19 16:05 | 2026-05-15 | MCRB | DesRosier Thomas | See Remarks | M - OptEx | — | +244 | 8,033 | +3% | — |
| DT | 2026-05-19 16:05 | 2026-05-18 | MCRB | DesRosier Thomas | See Remarks | S - Sale+OE | $7.53 | -79 | 7,954 | -1.0% | -$594.87 |
| DT | 2026-05-19 16:05 | 2026-05-15 | MCRB | Shaff Eric D. | Dir | M - OptEx | — | +722 | 12.3K | +6% | — |
| DT | 2026-05-19 16:05 | 2026-05-18 | MCRB | Shaff Eric D. | Dir | S - Sale+OE | $7.53 | -259 | 12.0K | -2% | -$1,950 |
| DT | 2026-05-19 16:05 | 2026-05-15 | MCRB | Henn Matthew R | See Remarks | M - OptEx | — | +238 | 7,915 | +3% | — |
| DT | 2026-05-19 16:05 | 2026-05-18 | MCRB | Henn Matthew R | See Remarks | S - Sale+OE | $7.53 | -77 | 7,838 | -1.0% | -$579.81 |
| D | 2026-05-19 16:05 | 2026-05-15 | MCRB | Brady Kelly | See Remarks | M - OptEx | — | +180 | 8,621 | +2% | — |
| D | 2026-05-19 16:05 | 2026-05-18 | MCRB | Brady Kelly | See Remarks | S - Sale+OE | $7.53 | -59 | 8,562 | -0.7% | -$444.27 |
| DT | 2026-02-18 | 2026-02-15 | MCRB | Henn Matthew R | See Remarks | M - OptEx | — | +239 | 7,766 | +3% | — |
| DT | 2026-02-18 | 2026-02-15 | MCRB | Henn Matthew R | See Remarks | S - Sale+OE | $8.47 | -89 | 7,677 | -1% | -$753.83 |
| DT | 2026-02-18 | 2026-02-15 | MCRB | Shaff Eric D. | Dir | M - OptEx | — | +723 | 11.8K | +7% | — |
| DT | 2026-02-18 | 2026-02-15 | MCRB | Shaff Eric D. | Dir | S - Sale+OE | $8.47 | -259 | 11.6K | -2% | -$2,194 |
| DT | 2026-02-18 | 2026-02-15 | MCRB | DesRosier Thomas | See Remarks | S - Sale+OE | $8.47 | -78 | 7,789 | -1.0% | -$660.66 |
| DT | 2026-02-18 | 2026-02-15 | MCRB | DesRosier Thomas | See Remarks | M - OptEx | — | +244 | 7,867 | +3% | — |
| DT | 2026-02-18 | 2026-02-15 | MCRB | Young Teresa L. | See Remarks | M - OptEx | — | +231 | 8,632 | +3% | — |
| DT | 2026-02-18 | 2026-02-15 | MCRB | Young Teresa L. | See Remarks | S - Sale+OE | $8.47 | -75 | 8,557 | -0.9% | -$635.25 |
| DT | 2025-11-18 | 2025-11-15 | MCRB | Shaff Eric D. | Dir | S - Sale+OE | $17.30 | -217 | 11.1K | -2% | -$3,754 |
| DMT | 2025-11-18 | 2025-11-15 | MCRB | Shaff Eric D. | Dir | M - OptEx | — | +721 | 11.0K | +7% | — |
| DT | 2025-11-18 | 2025-11-15 | MCRB | Henn Matthew R | See Remarks | S - Sale+OE | $17.30 | -1,257 | 7,527 | -14% | -$21.7K |
| DMT | 2025-11-18 | 2025-11-15 | MCRB | Henn Matthew R | See Remarks | M - OptEx | — | +4,236 | 8,686 | +95% | — |
| DT | 2025-11-18 | 2025-11-15 | MCRB | Young Teresa L. | See Remarks | S - Sale+OE | $17.30 | -1,042 | 8,401 | -11% | -$18.0K |
| DMT | 2025-11-18 | 2025-11-15 | MCRB | Young Teresa L. | See Remarks | M - OptEx | — | +4,228 | 9,345 | +83% | — |
| DMT | 2025-11-18 | 2025-11-15 | MCRB | DesRosier Thomas | See Remarks | M - OptEx | — | +244 | 7,699 | +3% | — |
| DT | 2025-11-18 | 2025-11-15 | MCRB | DesRosier Thomas | See Remarks | S - Sale+OE | $17.30 | -76 | 7,623 | -1.0% | -$1,315 |
| DT | 2025-08-19 | 2025-08-18 | MCRB | Henn Matthew R | See Remarks | S - Sale+OE | $16.65 | -73 | 4,548 | -2% | -$1,215 |
| DMT | 2025-08-19 | 2025-08-15 | MCRB | Henn Matthew R | See Remarks | M - OptEx | — | +238 | 4,524 | +6% | — |
| DT | 2025-08-19 | 2025-08-18 | MCRB | Shaff Eric D. | Dir | S - Sale+OE | $16.65 | -217 | 10.6K | -2% | -$3,613 |
| DMT | 2025-08-19 | 2025-08-15 | MCRB | Shaff Eric D. | Dir | M - OptEx | — | +724 | 10.5K | +7% | — |
| DT | 2025-08-19 | 2025-08-18 | MCRB | DesRosier Thomas | See Remarks | S - Sale+OE | $16.65 | -76 | 7,455 | -1% | -$1,265 |
| DMT | 2025-08-19 | 2025-08-15 | MCRB | DesRosier Thomas | See Remarks | M - OptEx | — | +244 | 7,420 | +3% | — |
| DMT | 2025-08-19 | 2025-08-15 | MCRB | Young Teresa L. | See Remarks | M - OptEx | — | +230 | 5,274 | +5% | — |
| DT | 2025-08-19 | 2025-08-18 | MCRB | Young Teresa L. | See Remarks | S - Sale+OE | $16.65 | -59 | 5,215 | -1% | -$982.35 |
| DT | 2025-05-19 | 2025-05-16 | MCRB | Shaff Eric D. | CEO, Pres, Dir | S - Sale+OE | $7.28 | -220 | 10.1K | -2% | -$1,602 |
| DMT | 2025-05-19 | 2025-05-15 | MCRB | Shaff Eric D. | CEO, Pres, Dir | M - OptEx | — | +721 | 10.3K | +8% | — |
| DMT | 2025-05-19 | 2025-05-15 | MCRB | Henn Matthew R | See Remarks | M - OptEx | — | +238 | 4,460 | +6% | — |
| DT | 2025-05-19 | 2025-05-16 | MCRB | Henn Matthew R | See Remarks | S - Sale+OE | $7.28 | -77 | 4,383 | -2% | -$560.56 |
| DT | 2025-05-19 | 2025-05-15 | MCRB | DesRosier Thomas | CLO, EVP | S - Sale+OE | $7.28 | -79 | 7,287 | -1% | -$575.12 |
| DMT | 2025-05-19 | 2025-05-15 | MCRB | DesRosier Thomas | CLO, EVP | M - OptEx | — | +244 | 7,366 | +3% | — |
| DMT | 2025-05-19 | 2025-05-15 | MCRB | Young Teresa L. | See Remarks | M - OptEx | — | +231 | 5,107 | +5% | — |
| DT | 2025-05-19 | 2025-05-16 | MCRB | Young Teresa L. | See Remarks | S - Sale+OE | $7.28 | -63 | 5,044 | -1% | -$458.64 |
| DT | 2025-02-19 | 2025-02-18 | MCRB | Young Teresa L. | See Remarks | S - Sale+OE | $0.81 | -3,338 | 97.5K | -3% | -$2,704 |
| DMT | 2025-02-19 | 2025-02-15 | MCRB | Young Teresa L. | See Remarks | M - OptEx | — | +10.5K | 100.9K | +12% | — |
| DMT | 2025-02-19 | 2025-02-15 | MCRB | Shaff Eric D. | CEO, Pres, Dir | M - OptEx | — | +34.4K | 204.8K | +20% | — |
| DT | 2025-02-19 | 2025-02-18 | MCRB | Shaff Eric D. | CEO, Pres, Dir | S - Sale+OE | $0.81 | -12.7K | 192.0K | -6% | -$10.3K |
| DT | 2025-02-19 | 2025-02-18 | MCRB | DesRosier Thomas | CLO, EVP | S - Sale+OE | $0.81 | -4,300 | 142.5K | -3% | -$3,483 |
| DMT | 2025-02-19 | 2025-02-15 | MCRB | DesRosier Thomas | CLO, EVP | M - OptEx | — | +11.6K | 137.8K | +9% | — |
| DT | 2025-02-19 | 2025-02-18 | MCRB | Henn Matthew R. | See Remarks | S - Sale+OE | $0.81 | -3,953 | 84.4K | -4% | -$3,202 |
| DMT | 2025-02-19 | 2025-02-15 | MCRB | Henn Matthew R. | See Remarks | M - OptEx | — | +10.6K | 80.6K | +15% | — |
| DMT | 2025-02-19 | 2025-02-15 | MCRB | von Moltke Lisa | See Remarks | M - OptEx | — | +11.9K | 35.4K | +51% | — |
| DT | 2025-02-19 | 2025-02-18 | MCRB | von Moltke Lisa | See Remarks | S - Sale+OE | $0.81 | -4,416 | 39.9K | -10% | -$3,577 |
| DT | 2024-11-19 | 2024-11-15 | MCRB | DesRosier Thomas | CLO, EVP | M - OptEx | — | +2,656 | 136.1K | +2% | — |
| DT | 2024-11-19 | 2024-11-18 | MCRB | DesRosier Thomas | CLO, EVP | S - Sale+OE | $0.54 | -878 | 135.2K | -0.6% | -$474.12 |
| DT | 2024-11-19 | 2024-11-15 | MCRB | von Moltke Lisa | See Remarks | M - OptEx | — | +2,969 | 33.4K | +10% | — |
| DT | 2024-11-19 | 2024-11-18 | MCRB | von Moltke Lisa | See Remarks | S - Sale+OE | $0.54 | -977 | 32.4K | -3% | -$527.58 |
| DT | 2024-11-19 | 2024-11-15 | MCRB | Shaff Eric D. | CEO, Pres, Dir | M - OptEx | — | +7,812 | 172.9K | +5% | — |
| DT | 2024-11-19 | 2024-11-18 | MCRB | Shaff Eric D. | CEO, Pres, Dir | S - Sale+OE | $0.54 | -2,505 | 170.4K | -1% | -$1,353 |
| DT | 2024-11-19 | 2024-11-15 | MCRB | Henn Matthew R. | See Remarks | M - OptEx | — | +2,812 | 78.7K | +4% | — |
| DT | 2024-11-19 | 2024-11-18 | MCRB | Henn Matthew R. | See Remarks | S - Sale+OE | $0.54 | -927 | 77.8K | -1% | -$500.58 |
| DT | 2024-11-19 | 2024-11-18 | MCRB | Young Teresa L. | See Remarks | S - Sale+OE | $0.54 | -735 | 90.4K | -0.8% | -$396.90 |
| DT | 2024-11-19 | 2024-11-15 | MCRB | Young Teresa L. | See Remarks | M - OptEx | — | +2,656 | 91.1K | +3% | — |
| DT | 2024-10-29 | 2024-10-28 | MCRB | Henn Matthew R. | See Remarks | S - Sale+OE | $0.69 | -3,984 | 75.9K | -5% | -$2,749 |
| DT | 2024-10-29 | 2024-10-27 | MCRB | Henn Matthew R. | See Remarks | M - OptEx | $0.00 | +12.6K | 79.9K | +19% | $0 |
| DT | 2024-10-29 | 2024-10-27 | MCRB | Young Teresa L. | See Remarks | M - OptEx | $0.00 | +11.4K | 91.5K | +14% | $0 |
| DT | 2024-10-29 | 2024-10-28 | MCRB | Young Teresa L. | See Remarks | S - Sale+OE | $0.69 | -2,983 | 88.5K | -3% | -$2,058 |
| DT | 2024-10-29 | 2024-10-28 | MCRB | von Moltke Lisa | See Remarks | S - Sale+OE | $0.69 | -4,334 | 30.4K | -12% | -$2,990 |
| DT | 2024-10-29 | 2024-10-27 | MCRB | von Moltke Lisa | See Remarks | M - OptEx | $0.00 | +13.7K | 34.8K | +65% | $0 |
| DT | 2024-10-29 | 2024-10-28 | MCRB | Shaff Eric D. | CEO, Pres, Dir | S - Sale+OE | $0.69 | -8,748 | 165.1K | -5% | -$6,036 |
| DT | 2024-10-29 | 2024-10-27 | MCRB | Shaff Eric D. | CEO, Pres, Dir | M - OptEx | $0.00 | +27.8K | 173.8K | +19% | $0 |
| DT | 2024-10-29 | 2024-10-28 | MCRB | DesRosier Thomas | CLO, EVP | S - Sale+OE | $0.69 | -4,259 | 133.4K | -3% | -$2,939 |
| DT | 2024-10-29 | 2024-10-27 | MCRB | DesRosier Thomas | CLO, EVP | M - OptEx | $0.00 | +13.5K | 137.7K | +11% | $0 |
| DT | 2024-08-19 | 2024-08-15 | MCRB | von Moltke Lisa | See Remarks | M - OptEx | — | +2,969 | 22.0K | +16% | — |
| DT | 2024-08-19 | 2024-08-16 | MCRB | von Moltke Lisa | See Remarks | S - Sale+OE | $0.84 | -973 | 21.0K | -4% | -$817.32 |
| DT | 2024-08-19 | 2024-08-15 | MCRB | Young Teresa L. | See Remarks | M - OptEx | — | +2,656 | 80.8K | +3% | — |
| DT | 2024-08-19 | 2024-08-16 | MCRB | Young Teresa L. | See Remarks | S - Sale+OE | $0.84 | -728 | 80.1K | -0.9% | -$611.52 |
| DT | 2024-08-19 | 2024-08-15 | MCRB | DesRosier Thomas | CLO, EVP | M - OptEx | — | +2,656 | 125.0K | +2% | — |
| DT | 2024-08-19 | 2024-08-16 | MCRB | DesRosier Thomas | CLO, EVP | S - Sale+OE | $0.84 | -873 | 124.2K | -0.7% | -$733.32 |
| DT | 2024-08-19 | 2024-08-16 | MCRB | Ege David S. | See Remarks | S - Sale+OE | $0.84 | -1,128 | 77.6K | -1% | -$947.52 |
| DT | 2024-08-19 | 2024-08-15 | MCRB | Ege David S. | See Remarks | M - OptEx | — | +2,969 | 78.7K | +4% | — |
| DT | 2024-08-19 | 2024-08-16 | MCRB | Shaff Eric D. | CEO, Pres, Dir | S - Sale+OE | $0.84 | -2,518 | 146.0K | -2% | -$2,115 |
| DT | 2024-08-19 | 2024-08-15 | MCRB | Shaff Eric D. | CEO, Pres, Dir | M - OptEx | — | +7,813 | 148.5K | +6% | — |
| DT | 2024-08-19 | 2024-08-16 | MCRB | Henn Matthew R. | See Remarks | S - Sale+OE | $0.84 | -923 | 67.2K | -1% | -$775.32 |
| DT | 2024-08-19 | 2024-08-15 | MCRB | Henn Matthew R. | See Remarks | M - OptEx | — | +2,813 | 68.2K | +4% | — |
| DT | 2024-08-06 | 2024-08-03 | MCRB | Young Teresa L. | See Remarks | M - OptEx | — | +85.0K | 102.7K | +481% | — |
| DT | 2024-08-06 | 2024-08-05 | MCRB | Young Teresa L. | See Remarks | S - Sale+OE | $1.08 | -24.5K | 78.2K | -24% | -$26.4K |
| DT | 2024-05-17 | 2024-05-15 | MCRB | Young Teresa L. | See Remarks | M - OptEx | — | +2,656 | 18.4K | +17% | — |
| DT | 2024-05-17 | 2024-05-15 | MCRB | Young Teresa L. | See Remarks | S - Sale+OE | $0.94 | -703 | 17.7K | -4% | -$660.82 |
| DT | 2024-05-17 | 2024-05-15 | MCRB | Henn Matthew R. | See Remarks | S - Sale+OE | $0.94 | -891 | 65.4K | -1% | -$837.54 |
| DT | 2024-05-17 | 2024-05-15 | MCRB | Henn Matthew R. | See Remarks | M - OptEx | — | +2,812 | 66.2K | +4% | — |
| DT | 2024-05-17 | 2024-05-15 | MCRB | von Moltke Lisa | See Remarks | S - Sale+OE | $0.94 | -939 | 19.0K | -5% | -$882.66 |
| DT | 2024-05-17 | 2024-05-15 | MCRB | von Moltke Lisa | See Remarks | M - OptEx | — | +2,968 | 20.0K | +17% | — |
| DT | 2024-05-17 | 2024-05-15 | MCRB | Shaff Eric D. | CEO, Pres, Dir | M - OptEx | — | +7,812 | 143.1K | +6% | — |
| DT | 2024-05-17 | 2024-05-15 | MCRB | Shaff Eric D. | CEO, Pres, Dir | S - Sale+OE | $0.94 | -2,435 | 140.7K | -2% | -$2,289 |
Purchase Sale Sale after option exercise All abbreviations