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MCRB · Seres Therapeutics, Inc.
> Ask across nine datasets ⌘K
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TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475
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MCRB

Seres Therapeutics, Inc.
PHARMA & BIOTECH · PHARMACEUTICAL PREPARATIONS · CIK 0001609809
SEC FILINGS☆ WATCH
INSIDER NET · 180D
-$5.8K
open-market buys minus sells, Form 4 codes P and S
INSIDER BUYERS · 180D
0
CONGRESS BUYERS · 1Y
0
FUNDS ADDED · QTR
17
13F, latest reported quarter
REVENUE GROWTH
-
XBRL, annual
NET MARGIN
-
CONVERSIONS · 180D
8
codes C/M, not in net · no price filed
SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST
INSIDERS
net -$5.8K over 180 days
-$2.2K over 90 days
more than 64% of Pharma & Biotech
CONGRESS
no member of Congress has reported trading it
FUNDS
17 funds added or opened last quarter
below 72% of Pharma & Biotech
REVENUE
no revenue reported in any filing
MARGIN
no margin: this company reports no revenue to divide by
BUYBACKS
no share repurchases reported
SHORT
3.2% of shares outstanding short · 5.9 days to cover · settled 2026-07-31
below 56% of Pharma & Biotech
THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET
Insiders are net sellers: -$5.8K across 4 people in 180 days.
The year, with the filings on it
Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail
TOTAL 12M RETURN -70.7%
-70.7%12M
-78%-36%+5%+47%2025-092025-102025-122026-032026-052026-072026-09 2025-11-15 · Henn Matthew R sold $21.7K2025-11-15 · Young Teresa L. sold $18.0K2025-11-15 · Shaff Eric D. sold $3.8K2026-02-15 · Shaff Eric D. sold $2.2K2026-05-18 · Shaff Eric D. sold $2.0K2025-11-15 · DesRosier Thomas sold $1.3K2026-08-17 · Shaff Eric D. sold $1.2K2026-02-15 · Henn Matthew R sold $7542026-02-15 · DesRosier Thomas sold $6612026-02-15 · Young Teresa L. sold $6352026-05-18 · DesRosier Thomas sold $5952026-05-18 · Henn Matthew R sold $5802026-05-18 · Brady Kelly sold $4442026-08-17 · DesRosier Thomas sold $3732026-08-17 · Henn Matthew R sold $3692026-08-17 · Brady Kelly sold $291
INSIDER SELL
INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY
Live price
Daily candles from TradingView, on their licence — no filings are marked on this one
WHY THIS NAME IS ON THE DESK
The complete filing record, in one place.
The record shows a net $5.8K sold by insiders over 180 days, 17 funds added last quarter. Every figure is a federal filing, dated the day it became public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector from the SEC's own SIC classification
UTHRCPIXMRNAREGNLLYALNYELFCITRMDGLDNAVRTXNUVL
Insider transactions
Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, Seres Therapeutics, Inc. insiders sold a net $5.8K of stock across 71 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-06.

INSIDER
FILED
SHARES
VALUE
DesRosier Thomas
See Remarks
SELL
2026-08-17
82.0
$373
Henn Matthew R
See Remarks
SELL
2026-08-17
81.0
$369
Shaff Eric D.
Director
SELL
2026-08-17
263.0
$1.2K
Brady Kelly
See Remarks
SELL
2026-08-17
64.0
$291
Shaff Eric D.
Director
SELL
2026-05-18
259.0
$2.0K
71 TRANSACTIONS ON RECORD

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Institutional holders
13F · holdings as of the latest quarter funds have reported
Flagship Pioneering, LLC
1,155,850.0 sh
$9.1M
VANGUARD CAPITAL MANAGEMENT LLC
287,776.0 sh
$2.3M
MARSHALL WACE, LLP
172,245.0 sh
$1.4M
Vontobel Holding Ltd.
122,975.0 sh
$970.3K
BlackRock, Inc.
111,000.0 sh
$875.8K
SCHEDULE 13D/G
No 5%+ ownership filings
Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.
FORM 144
No planned-sale notices
No insider has notified an intent to sell. This is the panel to watch after a run-up.
Fund concentration
N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show
Ultra-Small Company Market Fund
$66.5K POSITION · AS OF 2026-03-31
0.1%
iShares Micro-Cap ETF
$148.6K POSITION · AS OF 2026-03-31
0.0%
WisdomTree U.S. SmallCap Fund
$64.1K POSITION · AS OF 2026-03-31
0.0%
1290 VT Micro Cap Portfolio
$11.7K POSITION · AS OF 2026-03-31
0.0%
Invesco RAFI US 1500 Small-Mid ETF
$107.1K POSITION · AS OF 2026-04-30
0.0%
Avantis U.S. Small Cap Value ETF
$489.7K POSITION · AS OF 2026-02-28
0.0%
SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK
Clinical pipeline
ClinicalTrials.gov · 5 registered trials, 0 still enrolling or running — a status change here is dated weeks before the press release
2
Phase 1
0 ACTIVE
2
Phase 3
0 ACTIVE
1
Not applicable
0 ACTIVE
TRIALS MATCHED TO THIS TICKER BY SPONSOR NAME · STUDIES RUN UNDER A SUBSIDIARY'S OWN NAME ARE NOT INCLUDED
Executive pay vs shareholder return
DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself
FY
CEO TOTAL
ACTUALLY PAID
OTHER NEOs AVG
TSR
PEER TSR
2022
$4.0M
$1.6M
$1.7M
+62%
—
2021
$9.7M
-$10.7M
$4.4M
+141%
—
2020
$3.1M
$27.7M
$3.4M
+610%
+26%
TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP
Fundamentals
Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all
2025-122024-122023-122022-12
REVENUE$789.0K$0$0$7.1M
OPERATING INCOME$-94.0M$-121.3M$-195.1M$-179.9M
NET INCOME$5.7M$136.0K$-113.7M$-250.2M
EPS (DILUTED)0.640.00-17.77-2.31
OPERATING CASH FLOW$1.1M$-148.6M$-117.4M$-228.8M
CASH$45.8M$30.8M$128.0M$163.0M
LONG-TERM DEBT——$110.0M$50.0M
SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-06 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE
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Public filings, honestly analyzed. Official US government sources in one desk — every figure carries the date it was filed, and the methodology is published, backtest included.

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© 2026 WAVEMAN · SOURCE: SEC EDGAR & OFFICIAL GOVERNMENT DATA · NOT INVESTMENT ADVICE · CHART BY TRADINGVIEW · UPDATED 2026-09-06 ALL SYSTEMS LIVE FOR MACHINES →