MCRB
Seres Therapeutics, Inc.$7.03-0.29 (-3.96%)Prev Close$7.32·MCap$83.1M·P/E—·Vol42.5K·Yield—
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
16
$59.4K
◆
Net Activity
Net Seller
$59.4K
●
Active Insiders
4
last 12 mo
Over the past 12 months, insider activity at Seres Therapeutics, Inc. (MCRB) has been exclusively selling, with 0 insider purchases totaling $0.00 and 16 insider sales totaling $59.4K. The most recent insider transaction was by Young Teresa L. (See Remarks), who sold $635.25 worth of shares on Feb 15, 2026. Seres Therapeutics, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $83.1M.
MCRB Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Feb 15, 2026 | Young Teresa L. | See Remarks | Sell | 75 | $8.47 | $635.25 | 0 |
| Feb 15, 2026 | DesRosier Thomas | See Remarks | Sell | 78 | $8.47 | $660.66 | 0 |
| Feb 15, 2026 | Henn Matthew R | See Remarks | Sell | 89 | $8.47 | $753.83 | 0 |
| Feb 15, 2026 | Shaff Eric D. | Director | Sell | 259 | $8.47 | $2.2K | 0 |
| Nov 18, 2025 | DesRosier Thomas | See Remarks | Sell | 76 | $17.30 | $1.3K | 7,623 |
| Nov 18, 2025 | Henn Matthew R | See Remarks | Sell | 1,257 | $17.30 | $21.7K | 7,527 |
| Nov 18, 2025 | Shaff Eric D. | Sell | 217 | $17.30 | $3.8K | 11,113 | |
| Nov 18, 2025 | Young Teresa L. | See Remarks | Sell | 1,042 | $17.30 | $18.0K | 8,401 |
| Aug 19, 2025 | Henn Matthew R | See Remarks | Sell | 73 | $16.65 | $1.2K | 4,548 |
| Aug 19, 2025 | Shaff Eric D. | Sell | 217 | $16.65 | $3.6K | 10,609 | |
| Aug 19, 2025 | Young Teresa L. | See Remarks | Sell | 59 | $16.65 | $982.35 | 5,215 |
| Aug 19, 2025 | DesRosier Thomas | See Remarks | Sell | 76 | $16.65 | $1.3K | 7,455 |
| May 19, 2025 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 79 | $7.28 | $575.12 | 7,287 |
| May 19, 2025 | Henn Matthew R | See Remarks | Sell | 77 | $7.28 | $560.56 | 4,383 |
| May 19, 2025 | Shaff Eric D. | CEO and President | Sell | 220 | $7.28 | $1.6K | 10,102 |
| May 19, 2025 | Young Teresa L. | See Remarks | Sell | 63 | $7.28 | $458.64 | 5,044 |
| Feb 19, 2025 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 4,300 | $0.81 | $3.5K | 142,456 |
| Feb 19, 2025 | Henn Matthew R. | See Remarks | Sell | 3,953 | $0.81 | $3.2K | 84,443 |
| Feb 19, 2025 | Shaff Eric D. | CEO and President | Sell | 12,726 | $0.81 | $10.3K | 192,039 |
| Feb 19, 2025 | von Moltke Lisa | See Remarks | Sell | 4,416 | $0.81 | $3.6K | 39,875 |
| Feb 19, 2025 | Young Teresa L. | See Remarks | Sell | 3,338 | $0.81 | $2.7K | 97,536 |
| Nov 19, 2024 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 878 | $0.54 | $474.73 | 135,192 |
| Nov 19, 2024 | Henn Matthew R. | See Remarks | Sell | 927 | $0.54 | $501.23 | 77,770 |
| Nov 19, 2024 | Shaff Eric D. | CEO and President | Sell | 2,505 | $0.54 | $1.4K | 170,389 |
| Nov 19, 2024 | von Moltke Lisa | See Remarks | Sell | 977 | $0.54 | $528.26 | 32,415 |
| Nov 19, 2024 | Young Teresa L. | See Remarks | Sell | 735 | $0.54 | $397.64 | 90,404 |
| Oct 29, 2024 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 4,259 | $0.69 | $2.9K | 133,414 |
| Oct 29, 2024 | Henn Matthew R. | See Remarks | Sell | 3,984 | $0.69 | $2.7K | 75,885 |
| Oct 29, 2024 | Shaff Eric D. | CEO and President | Sell | 8,748 | $0.69 | $6.0K | 165,082 |
| Oct 29, 2024 | von Moltke Lisa | See Remarks | Sell | 4,334 | $0.69 | $3.0K | 30,423 |
| Oct 29, 2024 | Young Teresa L. | See Remarks | Sell | 2,983 | $0.69 | $2.1K | 88,483 |
| Aug 19, 2024 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 873 | $0.84 | $733.32 | 124,173 |
| Aug 19, 2024 | Ege David S. | See Remarks | Sell | 1,128 | $0.84 | $947.52 | 77,575 |
| Aug 19, 2024 | Henn Matthew R. | See Remarks | Sell | 923 | $0.84 | $775.32 | 67,247 |
| Aug 19, 2024 | Shaff Eric D. | CEO and President | Sell | 2,518 | $0.84 | $2.1K | 145,993 |
| Aug 19, 2024 | von Moltke Lisa | See Remarks | Sell | 973 | $0.84 | $817.32 | 21,013 |
| Aug 19, 2024 | Young Teresa L. | See Remarks | Sell | 728 | $0.84 | $611.52 | 80,106 |
| Aug 6, 2024 | Young Teresa L. | See Remarks | Sell | 24,480 | $1.08 | $26.5K | 78,178 |
| May 17, 2024 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 843 | $0.94 | $792.42 | 122,390 |
| May 17, 2024 | Ege David S. | See Remarks | Sell | 1,090 | $0.94 | $1.0K | 75,734 |
| May 17, 2024 | Henn Matthew R. | See Remarks | Sell | 891 | $0.94 | $837.54 | 65,357 |
| May 17, 2024 | Shaff Eric D. | CEO and President | Sell | 2,435 | $0.94 | $2.3K | 140,698 |
| May 17, 2024 | von Moltke Lisa | See Remarks | Sell | 939 | $0.94 | $882.66 | 19,017 |
| May 17, 2024 | Young Teresa L. | See Remarks | Sell | 703 | $0.94 | $660.82 | 17,658 |
| Feb 16, 2024 | Arkowitz David | Chief Financial Officer | Sell | 3,939 | $1.08 | $4.3K | 182,442 |
| Feb 16, 2024 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 3,939 | $1.08 | $4.3K | 120,577 |
| Feb 16, 2024 | Ege David S. | See Remarks | Sell | 5,010 | $1.08 | $5.4K | 73,856 |
| Feb 16, 2024 | Henn Matthew R. | See Remarks | Sell | 4,170 | $1.08 | $4.5K | 63,436 |
| Feb 16, 2024 | Shaff Eric D. | CEO and President | Sell | 11,549 | $1.08 | $12.5K | 135,321 |
| Feb 16, 2024 | von Moltke Lisa | See Remarks | Sell | 4,400 | $1.08 | $4.8K | 16,988 |
Showing 1–50 of 62
1 / 2
MCRB Insider Buying Activity
The following table shows recent insider purchases of Seres Therapeutics, Inc. (MCRB) stock reported via SEC Form 4 filings.
No insider buying activity found for MCRB in the last 12 months.
MCRB Insider Selling Activity
The following table shows recent insider sales of Seres Therapeutics, Inc. (MCRB) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Feb 15, 2026 | Young Teresa L. | See Remarks | Sell | 75 | $8.47 | $635.25 | 0 |
| Feb 15, 2026 | DesRosier Thomas | See Remarks | Sell | 78 | $8.47 | $660.66 | 0 |
| Feb 15, 2026 | Henn Matthew R | See Remarks | Sell | 89 | $8.47 | $753.83 | 0 |
| Feb 15, 2026 | Shaff Eric D. | Director | Sell | 259 | $8.47 | $2.2K | 0 |
| Nov 18, 2025 | DesRosier Thomas | See Remarks | Sell | 76 | $17.30 | $1.3K | 7,623 |
| Nov 18, 2025 | Henn Matthew R | See Remarks | Sell | 1,257 | $17.30 | $21.7K | 7,527 |
| Nov 18, 2025 | Shaff Eric D. | Sell | 217 | $17.30 | $3.8K | 11,113 | |
| Nov 18, 2025 | Young Teresa L. | See Remarks | Sell | 1,042 | $17.30 | $18.0K | 8,401 |
| Aug 19, 2025 | Henn Matthew R | See Remarks | Sell | 73 | $16.65 | $1.2K | 4,548 |
| Aug 19, 2025 | Shaff Eric D. | Sell | 217 | $16.65 | $3.6K | 10,609 | |
| Aug 19, 2025 | Young Teresa L. | See Remarks | Sell | 59 | $16.65 | $982.35 | 5,215 |
| Aug 19, 2025 | DesRosier Thomas | See Remarks | Sell | 76 | $16.65 | $1.3K | 7,455 |
| May 19, 2025 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 79 | $7.28 | $575.12 | 7,287 |
| May 19, 2025 | Henn Matthew R | See Remarks | Sell | 77 | $7.28 | $560.56 | 4,383 |
| May 19, 2025 | Shaff Eric D. | CEO and President | Sell | 220 | $7.28 | $1.6K | 10,102 |
| May 19, 2025 | Young Teresa L. | See Remarks | Sell | 63 | $7.28 | $458.64 | 5,044 |
| Feb 19, 2025 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 4,300 | $0.81 | $3.5K | 142,456 |
| Feb 19, 2025 | Henn Matthew R. | See Remarks | Sell | 3,953 | $0.81 | $3.2K | 84,443 |
| Feb 19, 2025 | Shaff Eric D. | CEO and President | Sell | 12,726 | $0.81 | $10.3K | 192,039 |
| Feb 19, 2025 | von Moltke Lisa | See Remarks | Sell | 4,416 | $0.81 | $3.6K | 39,875 |
| Feb 19, 2025 | Young Teresa L. | See Remarks | Sell | 3,338 | $0.81 | $2.7K | 97,536 |
| Nov 19, 2024 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 878 | $0.54 | $474.73 | 135,192 |
| Nov 19, 2024 | Henn Matthew R. | See Remarks | Sell | 927 | $0.54 | $501.23 | 77,770 |
| Nov 19, 2024 | Shaff Eric D. | CEO and President | Sell | 2,505 | $0.54 | $1.4K | 170,389 |
| Nov 19, 2024 | von Moltke Lisa | See Remarks | Sell | 977 | $0.54 | $528.26 | 32,415 |
| Nov 19, 2024 | Young Teresa L. | See Remarks | Sell | 735 | $0.54 | $397.64 | 90,404 |
| Oct 29, 2024 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 4,259 | $0.69 | $2.9K | 133,414 |
| Oct 29, 2024 | Henn Matthew R. | See Remarks | Sell | 3,984 | $0.69 | $2.7K | 75,885 |
| Oct 29, 2024 | Shaff Eric D. | CEO and President | Sell | 8,748 | $0.69 | $6.0K | 165,082 |
| Oct 29, 2024 | von Moltke Lisa | See Remarks | Sell | 4,334 | $0.69 | $3.0K | 30,423 |
| Oct 29, 2024 | Young Teresa L. | See Remarks | Sell | 2,983 | $0.69 | $2.1K | 88,483 |
| Aug 19, 2024 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 873 | $0.84 | $733.32 | 124,173 |
| Aug 19, 2024 | Ege David S. | See Remarks | Sell | 1,128 | $0.84 | $947.52 | 77,575 |
| Aug 19, 2024 | Henn Matthew R. | See Remarks | Sell | 923 | $0.84 | $775.32 | 67,247 |
| Aug 19, 2024 | Shaff Eric D. | CEO and President | Sell | 2,518 | $0.84 | $2.1K | 145,993 |
| Aug 19, 2024 | von Moltke Lisa | See Remarks | Sell | 973 | $0.84 | $817.32 | 21,013 |
| Aug 19, 2024 | Young Teresa L. | See Remarks | Sell | 728 | $0.84 | $611.52 | 80,106 |
| Aug 6, 2024 | Young Teresa L. | See Remarks | Sell | 24,480 | $1.08 | $26.5K | 78,178 |
| May 17, 2024 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 843 | $0.94 | $792.42 | 122,390 |
| May 17, 2024 | Ege David S. | See Remarks | Sell | 1,090 | $0.94 | $1.0K | 75,734 |
| May 17, 2024 | Henn Matthew R. | See Remarks | Sell | 891 | $0.94 | $837.54 | 65,357 |
| May 17, 2024 | Shaff Eric D. | CEO and President | Sell | 2,435 | $0.94 | $2.3K | 140,698 |
| May 17, 2024 | von Moltke Lisa | See Remarks | Sell | 939 | $0.94 | $882.66 | 19,017 |
| May 17, 2024 | Young Teresa L. | See Remarks | Sell | 703 | $0.94 | $660.82 | 17,658 |
| Feb 16, 2024 | Arkowitz David | Chief Financial Officer | Sell | 3,939 | $1.08 | $4.3K | 182,442 |
| Feb 16, 2024 | DesRosier Thomas | Chief Legal Officer and EVP | Sell | 3,939 | $1.08 | $4.3K | 120,577 |
| Feb 16, 2024 | Ege David S. | See Remarks | Sell | 5,010 | $1.08 | $5.4K | 73,856 |
| Feb 16, 2024 | Henn Matthew R. | See Remarks | Sell | 4,170 | $1.08 | $4.5K | 63,436 |
| Feb 16, 2024 | Shaff Eric D. | CEO and President | Sell | 11,549 | $1.08 | $12.5K | 135,321 |
| Feb 16, 2024 | von Moltke Lisa | See Remarks | Sell | 4,400 | $1.08 | $4.8K | 16,988 |
MCRB Insiders
Similar Stocks to MCRB
VRTX
Vertex Pharmaceuticals Incorporated
$429.47+0.81%
$111.71B
REGN
Regeneron Pharmaceuticals, Inc.
$734.06-1.39%
$77.87B
ALNY
Alnylam Pharmaceuticals, Inc.
$303.44-1.64%
$41.24B
INSM
Insmed Incorporated
$135.11-0.64%
$30.79B
RVMD
Revolution Medicines, Inc.
$144.62+9.92%
$29.51B
UTHR
United Therapeutics Corporation
$566.69+0.03%
$25.13B
MRNA
Moderna, Inc.
$47.16-3.17%
$21.42B
RPRX
Royalty Pharma plc
$49.40-0.50%
$21.20B