Stocks · Health care · Pharmaceutical Preparations

Seres Therapeutics, Inc.

MCRB Clue Score46
United States Fiscal year ends December CIK 0001609809
2.71
+3.04%
Close, 9 Oct 2026 · USD

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
2.71 on 9 Oct 2026
29 16 3 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $19.23 14 Oct 2025 $19.70 15 Oct 2025 $19.70 16 Oct 2025 $19.26 17 Oct 2025 $18.91 20 Oct 2025 $18.52 21 Oct 2025 $18.76 22 Oct 2025 $18.16 23 Oct 2025 $17.73 24 Oct 2025 $17.85 27 Oct 2025 $17.17 28 Oct 2025 $17.16 29 Oct 2025 $16.89 30 Oct 2025 $15.78 31 Oct 2025 $16.10 3 Nov 2025 $15.24 4 Nov 2025 $13.75 5 Nov 2025 $12.70 6 Nov 2025 $13.86 7 Nov 2025 $14.02 10 Nov 2025 $14.05 11 Nov 2025 $14.90 12 Nov 2025 $16.01 13 Nov 2025 $16.77 14 Nov 2025 $16.66 17 Nov 2025 $21.64 18 Nov 2025 $24.71 19 Nov 2025 $28.63 20 Nov 2025 $21.70 21 Nov 2025 $17.71 24 Nov 2025 $16.97 25 Nov 2025 $16.92 26 Nov 2025 $16.87 28 Nov 2025 $17.99 1 Dec 2025 $17.34 2 Dec 2025 $16.70 3 Dec 2025 $17.44 4 Dec 2025 $17.90 5 Dec 2025 $16.66 8 Dec 2025 $17.18 9 Dec 2025 $16.78 10 Dec 2025 $16.98 11 Dec 2025 $17.16 12 Dec 2025 $16.94 15 Dec 2025 $15.90 16 Dec 2025 $16.20 17 Dec 2025 $15.44 18 Dec 2025 $15.28 19 Dec 2025 $14.98 22 Dec 2025 $14.63 23 Dec 2025 $15.00 24 Dec 2025 $15.30 26 Dec 2025 $14.65 29 Dec 2025 $14.92 30 Dec 2025 $14.44 31 Dec 2025 $14.88 2 Jan 2026 $15.15 5 Jan 2026 $15.19 6 Jan 2026 $15.55 7 Jan 2026 $15.86 8 Jan 2026 $15.45 9 Jan 2026 $15.65 12 Jan 2026 $15.84 13 Jan 2026 $15.97 14 Jan 2026 $16.08 15 Jan 2026 $15.18 16 Jan 2026 $15.96 20 Jan 2026 $15.06 21 Jan 2026 $15.05 22 Jan 2026 $15.40 23 Jan 2026 $15.05 26 Jan 2026 $15.63 27 Jan 2026 $15.44 28 Jan 2026 $15.14 29 Jan 2026 $15.28 30 Jan 2026 $14.92 2 Feb 2026 $15.15 3 Feb 2026 $15.40 4 Feb 2026 $13.63 5 Feb 2026 $13.40 6 Feb 2026 $13.96 9 Feb 2026 $14.63 10 Feb 2026 $14.31 11 Feb 2026 $14.09 12 Feb 2026 $8.22 13 Feb 2026 $8.47 17 Feb 2026 $8.28 18 Feb 2026 $8.23 19 Feb 2026 $8.74 20 Feb 2026 $8.55 23 Feb 2026 $8.16 24 Feb 2026 $8.65 25 Feb 2026 $8.89 26 Feb 2026 $8.88 27 Feb 2026 $8.74 2 Mar 2026 $8.96 3 Mar 2026 $8.80 4 Mar 2026 $9.13 5 Mar 2026 $9.52 6 Mar 2026 $9.13 9 Mar 2026 $9.32 10 Mar 2026 $8.95 11 Mar 2026 $8.93 12 Mar 2026 $9.05 13 Mar 2026 $8.63 16 Mar 2026 $8.66 17 Mar 2026 $9.39 18 Mar 2026 $9.03 19 Mar 2026 $9.08 20 Mar 2026 $8.50 23 Mar 2026 $8.67 24 Mar 2026 $8.28 25 Mar 2026 $9.14 26 Mar 2026 $9.33 27 Mar 2026 $9.00 30 Mar 2026 $8.80 31 Mar 2026 $8.87 1 Apr 2026 $8.86 2 Apr 2026 $9.27 6 Apr 2026 $8.81 7 Apr 2026 $8.85 8 Apr 2026 $8.76 9 Apr 2026 $8.71 10 Apr 2026 $8.32 13 Apr 2026 $8.58 14 Apr 2026 $8.61 15 Apr 2026 $8.84 16 Apr 2026 $8.83 17 Apr 2026 $8.89 20 Apr 2026 $8.94 21 Apr 2026 $8.50 22 Apr 2026 $8.44 23 Apr 2026 $8.09 24 Apr 2026 $8.10 27 Apr 2026 $7.32 28 Apr 2026 $7.09 29 Apr 2026 $7.05 30 Apr 2026 $7.37 1 May 2026 $7.61 4 May 2026 $7.69 5 May 2026 $7.50 6 May 2026 $8.00 7 May 2026 $7.72 8 May 2026 $7.70 11 May 2026 $7.84 12 May 2026 $7.96 13 May 2026 $7.76 14 May 2026 $8.03 15 May 2026 $7.64 18 May 2026 $7.59 19 May 2026 $7.44 20 May 2026 $7.66 21 May 2026 $8.05 22 May 2026 $7.92 26 May 2026 $7.59 27 May 2026 $7.63 28 May 2026 $7.58 29 May 2026 $7.32 1 Jun 2026 $7.64 2 Jun 2026 $7.33 3 Jun 2026 $7.17 4 Jun 2026 $6.85 5 Jun 2026 $6.63 8 Jun 2026 $6.28 9 Jun 2026 $6.33 10 Jun 2026 $6.49 11 Jun 2026 $6.32 12 Jun 2026 $5.70 15 Jun 2026 $5.62 16 Jun 2026 $5.97 17 Jun 2026 $6.46 18 Jun 2026 $6.61 22 Jun 2026 $6.60 23 Jun 2026 $7.05 24 Jun 2026 $6.81 25 Jun 2026 $6.85 26 Jun 2026 $7.08 29 Jun 2026 $7.79 30 Jun 2026 $7.89 1 Jul 2026 $7.94 2 Jul 2026 $7.74 6 Jul 2026 $7.71 7 Jul 2026 $8.14 8 Jul 2026 $7.14 9 Jul 2026 $6.74 10 Jul 2026 $6.11 13 Jul 2026 $5.62 14 Jul 2026 $5.34 15 Jul 2026 $5.45 16 Jul 2026 $5.18 17 Jul 2026 $5.33 20 Jul 2026 $5.11 21 Jul 2026 $5.25 22 Jul 2026 $5.28 23 Jul 2026 $5.23 24 Jul 2026 $4.97 27 Jul 2026 $4.85 28 Jul 2026 $4.80 29 Jul 2026 $4.65 30 Jul 2026 $4.78 31 Jul 2026 $4.83 3 Aug 2026 $5.03 4 Aug 2026 $5.25 5 Aug 2026 $5.01 6 Aug 2026 $4.82 7 Aug 2026 $4.87 10 Aug 2026 $5.00 11 Aug 2026 $4.64 12 Aug 2026 $4.72 13 Aug 2026 $4.48 14 Aug 2026 $4.54 17 Aug 2026 $4.51 18 Aug 2026 $4.34 19 Aug 2026 $4.68 20 Aug 2026 $4.57 21 Aug 2026 $4.56 24 Aug 2026 $4.66 25 Aug 2026 $5.00 26 Aug 2026 $4.76 27 Aug 2026 $4.95 28 Aug 2026 $5.11 31 Aug 2026 $4.91 1 Sep 2026 $5.18 2 Sep 2026 $5.54 3 Sep 2026 $5.64 4 Sep 2026 $5.72 8 Sep 2026 $5.56 9 Sep 2026 $5.28 10 Sep 2026 $5.10 11 Sep 2026 $5.01 14 Sep 2026 $4.73 15 Sep 2026 $4.60 16 Sep 2026 $4.21 17 Sep 2026 $4.10 18 Sep 2026 $4.00 21 Sep 2026 $4.07 22 Sep 2026 $4.02 23 Sep 2026 $3.79 24 Sep 2026 $3.62 25 Sep 2026 $3.52 28 Sep 2026 $3.52 29 Sep 2026 $3.48 30 Sep 2026 $3.35 1 Oct 2026 $2.93 2 Oct 2026 $2.94 5 Oct 2026 $2.85 6 Oct 2026 $2.90 7 Oct 2026 $2.72 8 Oct 2026 $2.63 9 Oct 2026 $2.71 DesRosier Thomas See Remarks Sold on a plan $1.31K 15 Nov 2025 · at $17.30 · 1.0% of stake Shaff Eric D. Director Sold on a plan $3.75K 15 Nov 2025 · at $17.30 · 1.9% of stake Young Teresa L. See Remarks Sold on a plan $18.03K 15 Nov 2025 · at $17.30 · 11.0% of stake Henn Matthew R See Remarks Sold on a plan $21.75K 15 Nov 2025 · at $17.30 · 14.3% of stake Young Teresa L. See Remarks Sold on a plan $635.25 15 Feb 2026 · at $8.47 · 0.9% of stake DesRosier Thomas See Remarks Sold on a plan $660.66 15 Feb 2026 · at $8.47 · 1.0% of stake Henn Matthew R See Remarks Sold on a plan $753.83 15 Feb 2026 · at $8.47 · 1.1% of stake Shaff Eric D. Director Sold on a plan $2.19K 15 Feb 2026 · at $8.47 · 2.2% of stake Brady Kelly See Remarks Sold at will $444.27 18 May 2026 · at $7.53 · 0.7% of stake Henn Matthew R See Remarks Sold on a plan $579.81 18 May 2026 · at $7.53 · 1.0% of stake DesRosier Thomas See Remarks Sold on a plan $594.87 18 May 2026 · at $7.53 · 1.0% of stake Shaff Eric D. Director Sold on a plan $1.95K 18 May 2026 · at $7.53 · 2.1% of stake Brady Kelly See Remarks Sold on a plan $291.20 17 Aug 2026 · at $4.55 · 0.7% of stake Henn Matthew R See Remarks Sold on a plan $368.55 17 Aug 2026 · at $4.55 · 1.0% of stake DesRosier Thomas See Remarks Sold on a plan $373.10 17 Aug 2026 · at $4.55 · 1.0% of stake Shaff Eric D. Director Sold on a plan $1.20K 17 Aug 2026 · at $4.55 · 2.1% of stake
0 buys1 sale at will15 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$789.00K
Net income
$5.70M
Free cash flow
$865.00K
Operating margin
-11,910.1%
Net margin
721.9%
Return on equity
12.9%
Return on capital
-48.1%
Debt to equity
2.49
Revenue growth, 5 yr
-41.9% a year

Revenue and net income

Fiscal years, as filed with the SEC · point at a year for the detail
12M -89M FY20 Fiscal year 2020 Revenue $11.90M Net income $89.13M Margin -749.2% 144M -66M FY21 Fiscal year 2021 Revenue $143.86M Net income $65.58M Margin -45.6% · growth +1,109.2% 7M -250M FY22 Fiscal year 2022 Revenue $7.13M Net income $250.16M Margin -3,509.5% · growth -95.0% 0K -114M FY23 Fiscal year 2023 Revenue $0.00 Net income $113.72M Margin n/a · growth -100.0% 0K 136K FY24 Fiscal year 2024 Revenue $0.00 Net income $136.00K Margin n/a 789K 6M FY25 Fiscal year 2025 Revenue $789.00K Net income $5.70M Margin 721.9%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
17 Aug 2026 Shaff Eric D.
Director
Sold on a plan $1.20K 2.1%
17 Aug 2026 DesRosier Thomas
See Remarks
Sold on a plan $373.10 1.0%
17 Aug 2026 Henn Matthew R
See Remarks
Sold on a plan $368.55 1.0%
17 Aug 2026 Brady Kelly
See Remarks
Sold on a plan $291.20 0.7%
18 May 2026 Shaff Eric D.
Director
Sold on a plan $1.95K 2.1%
18 May 2026 DesRosier Thomas
See Remarks
Sold on a plan $594.87 1.0%