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SERES THERAPEUTICS INC (MCRB) Stock Ownership and Short Interest

USA - Nasdaq - NASDAQ:MCRB - US81750R2013 - Common Stock

16.66 USD
-1.24 (-6.93%)
Last: 12/5/2025, 5:37:22 PM
17.5 USD
+0.84 (+5.04%)
After Hours: 12/5/2025, 5:37:22 PM
MCRB Ownership Chart.MCRB Ownership Chart: showing Insider, Institutional ownership and shares available to the public.MCRB Ownership.InsiderInstitutionalPublic



Shares Outstanding9.05M
Float7.90M
Float Short Interest Percentage11.71%
Owners (insider)0.32%
Owners (institutional)26.03%
Owners (insider) change0.71%
Owners (institutional) change-6.97%
MCRB Institutional Ownership HistoryMCRB Institutional Ownership HistoryMCRB Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 20M 40M 60M 80M 100M
MCRB Historical Insider Transactions ChartMCRB Historical Insider Buy and Sell Transactions ChartMCRB Historical Insider Transactions Jan 2025 Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 0 20K -20K 40K 60K
Date Name Type Shares Price Amount
Nov 15, 2025 Shaff Eric D. Option Excercise 721 $ 0.00
Nov 15, 2025 Shaff Eric D. Open Market Sale 217 17.30 $ 3,754.10
Nov 15, 2025 DesRosier Thomas Option Excercise 244 $ 0.00
Nov 15, 2025 DesRosier Thomas Open Market Sale 76 17.30 $ 1,314.80
Nov 15, 2025 Young Teresa L. Option Excercise 4228 $ 0.00
Nov 15, 2025 Young Teresa L. Open Market Sale 1042 17.30 $ 18,026.60
Nov 15, 2025 Henn Matthew R. Option Excercise 4236 $ 0.00
Nov 15, 2025 Henn Matthew R. Open Market Sale 1257 17.30 $ 21,746.10
Aug 18, 2025 Shaff Eric D. Open Market Sale 217 16.65 $ 3,613.05
Aug 18, 2025 DesRosier Thomas Open Market Sale 76 16.65 $ 1,265.40
Aug 18, 2025 Henn Matthew R. Open Market Sale 73 16.65 $ 1,215.45
Aug 18, 2025 Young Teresa L. Open Market Sale 59 16.65 $ 982.35
Aug 15, 2025 Shaff Eric D. Option Excercise 724 $ 0.00
Aug 15, 2025 DesRosier Thomas Option Excercise 244 $ 0.00
Aug 15, 2025 Henn Matthew R. Option Excercise 238 $ 0.00
Aug 15, 2025 Young Teresa L. Option Excercise 230 $ 0.00
May 16, 2025 Young Teresa L. Open Market Sale 63 7.28 $ 458.64
May 16, 2025 Shaff Eric D. Open Market Sale 220 7.28 $ 1,601.60
May 16, 2025 Henn Matthew R. Open Market Sale 77 7.28 $ 560.56
May 15, 2025 Young Teresa L. Option Excercise 231 $ 0.00
May 15, 2025 Shaff Eric D. Option Excercise 721 $ 0.00
May 15, 2025 DesRosier Thomas Option Excercise 244 $ 0.00
May 15, 2025 DesRosier Thomas Open Market Sale 79 7.28 $ 575.12
May 15, 2025 Henn Matthew R. Option Excercise 238 $ 0.00
Feb 18, 2025 DesRosier Thomas Open Market Sale 4300 0.81 $ 3,485.15
Feb 18, 2025 von Moltke Lisa Open Market Sale 4416 0.81 $ 3,579.17
Feb 18, 2025 Young Teresa L. Open Market Sale 3338 0.81 $ 2,704.45
Feb 18, 2025 Henn Matthew R. Open Market Sale 3953 0.81 $ 3,203.51
Feb 18, 2025 Shaff Eric D. Open Market Sale 12726 0.81 $ 10,314.42
Feb 15, 2025 DesRosier Thomas Option Excercise 11564 $ 0.00
Feb 15, 2025 von Moltke Lisa Option Excercise 11876 $ 0.00
Feb 15, 2025 Young Teresa L. Option Excercise 10470 $ 0.00
Feb 15, 2025 Henn Matthew R. Option Excercise 10626 $ 0.00
Feb 15, 2025 Shaff Eric D. Option Excercise 34376 $ 0.00