DesRosier Thomas
SEC CIK 1435744 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| MCRB | Seres Therapeutics, Inc. | See Remarks | 8,117 | — | $23.1K | 27 | 2022-07-05 | 2026-08-17 |
Most active insiders at MCRB, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Henn Matthew R | See Remarks | — | $23.4K |
| 2 | Young Teresa L. | See Remarks | — | $18.7K |
| 3 | Shaff Eric D. | Dir | — | $9,095 |
| 4 | DesRosier Thomas | See Remarks | — | $2,943 |
| 5 | Brady Kelly | See Remarks | — | $735.47 |
Transactions 27
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-08-18 17:22 | 2026-08-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | See Remarks | M - OptEx | — | +245 | 8,199 | +3% | — |
| DT | 2026-08-18 17:22 | 2026-08-17 | MCRB | Seres Therapeutics, Inc. | 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 | Seres Therapeutics, Inc. | DesRosier Thomas | See Remarks | M - OptEx | — | +244 | 8,033 | +3% | — |
| DT | 2026-05-19 16:05 | 2026-05-18 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | See Remarks | S - Sale+OE | $7.53 | -79 | 7,954 | -1.0% | -$594.87 |
| DT | 2026-02-18 | 2026-02-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | See Remarks | S - Sale+OE | $8.47 | -78 | 7,789 | -1.0% | -$660.66 |
| DT | 2026-02-18 | 2026-02-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | See Remarks | M - OptEx | — | +244 | 7,867 | +3% | — |
| DMT | 2025-11-18 | 2025-11-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | See Remarks | M - OptEx | — | +244 | 7,699 | +3% | — |
| DT | 2025-11-18 | 2025-11-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | See Remarks | S - Sale+OE | $17.30 | -76 | 7,623 | -1.0% | -$1,315 |
| DT | 2025-08-19 | 2025-08-18 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | See Remarks | S - Sale+OE | $16.65 | -76 | 7,455 | -1% | -$1,265 |
| DMT | 2025-08-19 | 2025-08-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | See Remarks | M - OptEx | — | +244 | 7,420 | +3% | — |
| DT | 2025-05-19 | 2025-05-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | S - Sale+OE | $7.28 | -79 | 7,287 | -1% | -$575.12 |
| DMT | 2025-05-19 | 2025-05-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | M - OptEx | — | +244 | 7,366 | +3% | — |
| DT | 2025-02-19 | 2025-02-18 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | S - Sale+OE | $0.81 | -4,300 | 142.5K | -3% | -$3,483 |
| DMT | 2025-02-19 | 2025-02-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | M - OptEx | — | +11.6K | 137.8K | +9% | — |
| DT | 2024-11-19 | 2024-11-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | M - OptEx | — | +2,656 | 136.1K | +2% | — |
| DT | 2024-11-19 | 2024-11-18 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | S - Sale+OE | $0.54 | -878 | 135.2K | -0.6% | -$474.12 |
| DT | 2024-10-29 | 2024-10-28 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | S - Sale+OE | $0.69 | -4,259 | 133.4K | -3% | -$2,939 |
| DT | 2024-10-29 | 2024-10-27 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | M - OptEx | $0.00 | +13.5K | 137.7K | +11% | $0 |
| DT | 2024-08-19 | 2024-08-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | M - OptEx | — | +2,656 | 125.0K | +2% | — |
| DT | 2024-08-19 | 2024-08-16 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | S - Sale+OE | $0.84 | -873 | 124.2K | -0.7% | -$733.32 |
| DT | 2024-05-17 | 2024-05-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | S - Sale+OE | $0.94 | -843 | 122.4K | -0.7% | -$792.42 |
| DT | 2024-05-17 | 2024-05-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | M - OptEx | — | +2,656 | 123.2K | +2% | — |
| DT | 2024-02-16 | 2024-02-15 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | M - OptEx | — | +10.6K | 124.5K | +9% | — |
| DT | 2024-02-16 | 2024-02-16 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | S - Sale+OE | $1.08 | -3,939 | 120.6K | -3% | -$4,254 |
| D | 2023-10-31 | 2023-10-30 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | S - Sale+OE | $1.35 | -4,156 | 113.9K | -4% | -$5,611 |
| D | 2023-10-31 | 2023-10-27 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | M - OptEx | $0.00 | +13.5K | 118.0K | +13% | $0 |
| 2022-07-06 | 2022-07-05 | MCRB | Seres Therapeutics, Inc. | DesRosier Thomas | CLO, EVP | A - Grant | $3.15 | +63.5K | 104.5K | +155% | +$200.0K |
Purchase Sale Sale after option exercise All abbreviations