8-K - Seres Therapeutics, Inc. (0001609809) (Filer)
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8-K - Seres Therapeutics filed an 8-K with the SEC on Nov 4 (a notice of a material company event).
Directly affected
- MCRB Seres Therapeutics-3.0% 7d
Named in this report.
Indirectly affected
- XLV Health Care Select Sector SPDR
Health Care Select Sector SPDR holds the health sector that Seres Therapeutics belongs to, so it often moves with news about it.
- LLY Eli Lilly and+22.4% 30d
Eli Lilly and is a peer of Seres Therapeutics in pharmaceutical preparations; rivals often move on the same news.
- JNJ Johnson & Johnson-1.7% 30d
Johnson & Johnson is a peer of Seres Therapeutics in pharmaceutical preparations; rivals often move on the same news.
- ABBV AbbVie+7.8% 30d
AbbVie is a peer of Seres Therapeutics in pharmaceutical preparations; rivals often move on the same news.
- MRK Merck+1.9% 18d
Merck is a peer of Seres Therapeutics in pharmaceutical preparations; rivals often move on the same news.
- ABT Abbott Laboratories+6.9% 30d
Abbott Laboratories is a peer of Seres Therapeutics in pharmaceutical preparations; rivals often move on the same news.
Price reaction, T-5 to T+3
| Ticker | T-5 | T-3 | T-1 | T0 | T+1 | T+2 | T+3 |
|---|---|---|---|---|---|---|---|
| MCRB | -8.21% | -9.74% | base | after close | after close | after close | after close |
| XLV | -2.31% | +0.48% | base | after close | after close | after close | after close |
| LLY | -8.42% | +0.54% | base | after close | after close | after close | after close |
| JNJ | +1.93% | +2.66% | base | after close | after close | after close | after close |
| ABBV | +0.13% | +3.12% | base | after close | after close | after close | after close |
| MRK | -2.47% | +3.37% | base | after close | after close | after close | after close |
| ABT | -6.15% | -2.89% | base | after close | after close | after close | after close |
Closing-price change versus T-1, the last close before the story. T0 to T+3 fill in after each market close. Prices: Alpaca IEX.
Filed: 2026-11-04 AccNo: 0001193125-26-446185 Size: 7 MB Item 2.02: Results of Operations and Financial Condition Item 7.01: Regulation FD Disclosure Item 9.01: Financial Statements and Exhibits
Source: sec-edgar
Seres Therapeutics (MCRB) since “8-K - Seres Therapeutics, Inc. (0001609809) (Filer),” compared with the market
| Company | When | Move | Status |
|---|---|---|---|
| AbbVie (ABBV) | three days earlier | +3.12% | final price |
| AbbVie (ABBV) | five days earlier | +0.13% | final price |
| Abbott Laboratories (ABT) | three days earlier | -2.89% | final price |
| Abbott Laboratories (ABT) | five days earlier | -6.15% | final price |
| Johnson & Johnson (JNJ) | three days earlier | +2.66% | final price |
| Johnson & Johnson (JNJ) | five days earlier | +1.93% | final price |
| Eli Lilly (LLY) | three days earlier | +0.54% | final price |
| Eli Lilly (LLY) | five days earlier | -8.42% | final price |
| Seres Therapeutics (MCRB) | three days earlier | -9.74% | final price |
| Seres Therapeutics (MCRB) | five days earlier | -8.21% | final price |
| Merck (MRK) | three days earlier | +3.37% | final price |
| Merck (MRK) | five days earlier | -2.47% | final price |
| Select Sector Spdr Tr (XLV) | three days earlier | +0.48% | final price |
| Select Sector Spdr Tr (XLV) | five days earlier | -2.31% | final price |
Congressional trades in the stocks in this story
- Rep. Rohit Khanna bought Eli Lilly (LLY) (held by a spouse), worth $1,001 - $15,000 on 4 Sep 2026. That is 61 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Thomas H. Kean Jr sold Johnson & Johnson (JNJ), worth $1,001 - $15,000 on 30 Sep 2026. That is 35 days before publication. Filed 30 Oct 2026. View the filing.
- Rep. Rohit Khanna bought Johnson & Johnson (JNJ) (held by a spouse), worth $1,001 - $15,000 on 25 Sep 2026. That is 40 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Lloyd Doggett bought Johnson & Johnson (JNJ), worth $1,001 - $15,000 on 8 Sep 2026. That is 57 days before publication. Filed 5 Oct 2026. View the filing.
- Rep. Pete Sessions sold AbbVie (ABBV), worth $15,001 - $50,000 on 14 Sep 2026. That is 51 days before publication. Filed 18 Sep 2026. View the filing.
- Rep. Rohit Khanna sold AbbVie (ABBV) (held by a spouse), worth $1,001 - $15,000 on 4 Sep 2026. That is 61 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Maria Elvira Salazar sold Merck (MRK), worth $1,001 - $15,000 on 24 Sep 2026. That is 41 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Maria Elvira Salazar bought Merck (MRK), worth $15,001 - $50,000 on 19 Aug 2026. That is 77 days before publication. Filed 9 Sep 2026. View the filing.
- Rep. Pete Sessions sold Abbott Laboratories (ABT) (held by a spouse), worth $50,001 - $100,000 on 2 Oct 2026. That is 33 days before publication. Filed 27 Oct 2026. View the filing.
- Rep. Gilbert Cisneros bought Abbott Laboratories (ABT), worth $1,001 - $15,000 on 18 Sep 2026. That is 47 days before publication. Filed 12 Oct 2026. View the filing.
- Rep. Thomas H. Kean Jr sold Abbott Laboratories (ABT), worth $1,001 - $15,000 on 17 Sep 2026. That is 48 days before publication. Filed 30 Oct 2026. View the filing.
Public disclosure filings, not a recommendation. The filing link is the source document. News use of these reports still sits under 5 U.S.C. § 13107(c).
Who gains and who loses around Seres Therapeutics (MCRB)
Companies mentioned with this story
- MCRB Seres Therapeutics
For “8-K - Seres Therapeutics, Inc. (0001609809) (Filer),” Seres Therapeutics (MCRB) is linked, with no stored direction, high confidence. Reason on file: SEC 8-K filing -> direct issuer disclosure -> MCRB
- XLV Select Sector Spdr Tr
Select Sector Spdr Tr (XLV) is linked, with no stored direction, medium confidence in the 4 Nov 2026 story “8-K - Seres Therapeutics, Inc. (0001609809) (Filer).” Reason on file: Health Care Select Sector SPDR holds the health sector that Seres Therapeutics belongs to, so it often moves with news about it
- LLY Eli Lilly
Eli Lilly (LLY) is linked, with no stored direction, medium confidence in the 4 Nov 2026 story “8-K - Seres Therapeutics, Inc. (0001609809) (Filer).” Reason on file: Eli Lilly and is a peer of Seres Therapeutics in pharmaceutical preparations; rivals often move on the same news
- JNJ Johnson & Johnson
In “8-K - Seres Therapeutics, Inc. (0001609809) (Filer),” Johnson & Johnson (JNJ) is linked, with no stored direction, medium confidence. Reason on file: Johnson & Johnson is a peer of Seres Therapeutics in pharmaceutical preparations; rivals often move on the same news
- ABBV AbbVie
In “8-K - Seres Therapeutics, Inc. (0001609809) (Filer),” AbbVie (ABBV) is linked, with no stored direction, medium confidence. Reason on file: AbbVie is a peer of Seres Therapeutics in pharmaceutical preparations; rivals often move on the same news
- MRK Merck
For “8-K - Seres Therapeutics, Inc. (0001609809) (Filer),” Merck (MRK) is linked, with no stored direction, medium confidence. Reason on file: Merck is a peer of Seres Therapeutics in pharmaceutical preparations; rivals often move on the same news
- ABT Abbott Laboratories
Abbott Laboratories (ABT) is linked, with no stored direction, medium confidence in the 4 Nov 2026 story “8-K - Seres Therapeutics, Inc. (0001609809) (Filer).” Reason on file: Abbott Laboratories is a peer of Seres Therapeutics in pharmaceutical preparations; rivals often move on the same news
How “8-K - Seres Therapeutics, Inc. (0001609809) (Filer)” reaches Seres Therapeutics (MCRB)
Seres Therapeutics (MCRB) is the company in “8-K - Seres Therapeutics, Inc. (0001609809) (Filer),” the 4 Nov 2026 this story story.
Seres Therapeutics (MCRB) is on the page because SEC 8-K filing -> direct issuer disclosure -> MCRB
Also listed, Select Sector Spdr Tr (XLV): Health Care Select Sector SPDR holds the health sector that Seres Therapeutics belongs to, so it often moves with news about it
Dates and price levels for Seres Therapeutics (MCRB)
LLY traded between 1131.55 and 1447.86 across 20 sessions. The latest close on file is 1409.39. MCRB traded between 1.68 and 2.15 across 7 sessions. The latest close on file is 1.96.
How strong the case is around Seres Therapeutics (MCRB)
46 out of 100
“8-K - Seres Therapeutics, Inc. (0001609809) (Filer)” scores 46 out of 100. The score uses 1 sources, and 7 linked companies.