Market Cap 1.28B
Revenue (ttm) 2.37M
Net Income (ttm) -62.81M
EPS (ttm) N/A
PE Ratio 0.00
Forward PE N/A
Profit Margin -2,650.21%
Debt to Equity Ratio 0.00
Volume 801,193
Avg Vol 407,280
Day's Range N/A - N/A
Shares Out 54.04M
Stochastic %K 32%
Beta N/A
Analysts Strong Sell
Price Target $52.33

Company Profile

Upstream Bio, Inc., a clinical-stage biotechnology company, develops treatments for inflammatory diseases focusing on severe respiratory disorders. Its product candidate includes verekitug, which is in Phase 2 clinical development for the treatment of severe asthma and chronic rhinosinusitis with nasal polyps, as well as in Phase I clinical trial for treating chronic obstructive pulmonary disease. The company was incorporated in 2021 and is headquartered in Waltham, Massachusetts.

Industry: Biotechnology
Sector: Healthcare
Phone: 781 208 2466
Address:
890 Winter Street, Suite 200, Waltham, United States
Mrstock2255
Mrstock2255 Nov. 14 at 1:47 AM
0 · Reply
Trainguy1
Trainguy1 Nov. 5 at 5:18 PM
$UPB Here’s basic description about how Verekitug treats asthma. Asthma is a chronic inflammatory condition of the airways caused by an excessive immune response to environmental triggers such as allergens or infections. At the cellular level, one of the first events that occurs when an asthma attack is triggered is the expression of a type of upstream cytokine (which is a control protein ) from the airway tissues called TSLP. Verekitug’s job is to disable TSLP by blocking its activation receptor. Once blocked, there is no way to initiate the asthma pathway cascade.
1 · Reply
G101SPM
G101SPM Nov. 4 at 8:34 PM
#SHOWTIME Truist Securities Biopharma Symposium (November 5) Scheduled to appear: $ABCL, $CRBU, $OABI, $UPB
0 · Reply
MRMOMTRADER1
MRMOMTRADER1 Oct. 27 at 5:30 PM
$UPB any predictions here.
0 · Reply
Quantumup
Quantumup Oct. 20 at 6:46 PM
Piper Sandler reiterated $UPB Overweight-$75 and said UPB has traded up ~130%+ over the last 6-months where verekitug (TSLP-R mAb) showed compelling efficacy/safety in Ph2 VIBRANT CRSwNP with upcoming Ph2 VALIANT severe asthma topline 1Q26 (~Feb/Mar 2026, per our math). $AMGN - $AZN $REGN - $SNY Piper Sandler added:
0 · Reply
StockConsultant
StockConsultant Oct. 16 at 3:12 AM
$UPB Upstream Bio stock, nice top of range breakout at https://stockconsultant.com/?UPB
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Doozio
Doozio Oct. 15 at 11:19 PM
$UPB it was always 🐒🍌🧠⏰♾️ wen MAMA said they wud bust out of cup n handles. Today is Wednesday.
0 · Reply
JarvisFlow
JarvisFlow Oct. 14 at 1:09 PM
Truist Securities updates rating for Upstream Bio ( $UPB ) to Buy, target set at 47.
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Quantumup
Quantumup Oct. 14 at 12:11 PM
Truist🏁 $UPB Buy/$47.X $AZN $AMGN $REGN $SNY Truist said in its Upstream Bio initiation: In our view, UPB's TSLP-receptor inhibitor, verekitug, offers a differentiated, and now de-risked biologic treatment option for I&I [respiratory] diseases - which represents a rapidly growing multi-billion dollar market. TSLP ligand blockade has shown broader/ deeper efficacy vs other biologics for severe asthma, with the approved drug Tezspire (AMGN (Hold, Devarakonda)/ AZN (NR)). Verekitug offers similarly robust efficacy but with a much improved dosing schedule via targeting the receptor. Given the size of the market, & verekitug's value proposition, we think it could easily become a mega-blockbuster drug.
0 · Reply
HIGHTABLETRADES
HIGHTABLETRADES Oct. 11 at 7:40 PM
$UPB watching for a solid break with volume to solidify belief in the product differentiation success to tackle these lung conditions better.
0 · Reply
Latest News on UPB
Upstream Bio, Inc. - Special Call

Sep 7, 2025, 10:25 PM EDT - 2 months ago

Upstream Bio, Inc. - Special Call


Upstream Bio Appoints Stacy Price as Chief Technology Officer

May 20, 2025, 7:00 AM EDT - 6 months ago

Upstream Bio Appoints Stacy Price as Chief Technology Officer


3 Dividend Giants To Buy As Tariffs Hit Stocks

Mar 28, 2025, 3:56 PM EDT - 8 months ago

3 Dividend Giants To Buy As Tariffs Hit Stocks

PEP PG


Upstream Bio to Present at Upcoming March Investor Conferences

Feb 25, 2025, 8:00 AM EST - 9 months ago

Upstream Bio to Present at Upcoming March Investor Conferences


Upstream Bio Announces Addition to Russell 2000® Index

Dec 16, 2024, 8:00 AM EST - 11 months ago

Upstream Bio Announces Addition to Russell 2000® Index


Upstream Bio valued at $1.1 bln as shares jump in Nasdaq debut

Oct 11, 2024, 12:49 PM EDT - 1 year ago

Upstream Bio valued at $1.1 bln as shares jump in Nasdaq debut


Upstream Bio raises $255 mln in US IPO

Oct 10, 2024, 7:42 PM EDT - 1 year ago

Upstream Bio raises $255 mln in US IPO


Mrstock2255
Mrstock2255 Nov. 14 at 1:47 AM
0 · Reply
Trainguy1
Trainguy1 Nov. 5 at 5:18 PM
$UPB Here’s basic description about how Verekitug treats asthma. Asthma is a chronic inflammatory condition of the airways caused by an excessive immune response to environmental triggers such as allergens or infections. At the cellular level, one of the first events that occurs when an asthma attack is triggered is the expression of a type of upstream cytokine (which is a control protein ) from the airway tissues called TSLP. Verekitug’s job is to disable TSLP by blocking its activation receptor. Once blocked, there is no way to initiate the asthma pathway cascade.
1 · Reply
G101SPM
G101SPM Nov. 4 at 8:34 PM
#SHOWTIME Truist Securities Biopharma Symposium (November 5) Scheduled to appear: $ABCL, $CRBU, $OABI, $UPB
0 · Reply
MRMOMTRADER1
MRMOMTRADER1 Oct. 27 at 5:30 PM
$UPB any predictions here.
0 · Reply
Quantumup
Quantumup Oct. 20 at 6:46 PM
Piper Sandler reiterated $UPB Overweight-$75 and said UPB has traded up ~130%+ over the last 6-months where verekitug (TSLP-R mAb) showed compelling efficacy/safety in Ph2 VIBRANT CRSwNP with upcoming Ph2 VALIANT severe asthma topline 1Q26 (~Feb/Mar 2026, per our math). $AMGN - $AZN $REGN - $SNY Piper Sandler added:
0 · Reply
StockConsultant
StockConsultant Oct. 16 at 3:12 AM
$UPB Upstream Bio stock, nice top of range breakout at https://stockconsultant.com/?UPB
0 · Reply
Doozio
Doozio Oct. 15 at 11:19 PM
$UPB it was always 🐒🍌🧠⏰♾️ wen MAMA said they wud bust out of cup n handles. Today is Wednesday.
0 · Reply
JarvisFlow
JarvisFlow Oct. 14 at 1:09 PM
Truist Securities updates rating for Upstream Bio ( $UPB ) to Buy, target set at 47.
0 · Reply
Quantumup
Quantumup Oct. 14 at 12:11 PM
Truist🏁 $UPB Buy/$47.X $AZN $AMGN $REGN $SNY Truist said in its Upstream Bio initiation: In our view, UPB's TSLP-receptor inhibitor, verekitug, offers a differentiated, and now de-risked biologic treatment option for I&I [respiratory] diseases - which represents a rapidly growing multi-billion dollar market. TSLP ligand blockade has shown broader/ deeper efficacy vs other biologics for severe asthma, with the approved drug Tezspire (AMGN (Hold, Devarakonda)/ AZN (NR)). Verekitug offers similarly robust efficacy but with a much improved dosing schedule via targeting the receptor. Given the size of the market, & verekitug's value proposition, we think it could easily become a mega-blockbuster drug.
0 · Reply
HIGHTABLETRADES
HIGHTABLETRADES Oct. 11 at 7:40 PM
$UPB watching for a solid break with volume to solidify belief in the product differentiation success to tackle these lung conditions better.
0 · Reply
topstockalerts
topstockalerts Oct. 2 at 12:11 PM
$UPB look who’s waking up..
0 · Reply
velis7
velis7 Sep. 30 at 8:56 AM
$UPB 👀 Who Should Care ✅ Investors These results could significantly increase the value of Upstream Bio, especially if verekitug positions itself as a best-in-class or first-in-class therapy. ✅ Clinicians & Researchers The mechanism and dosing schedule could change treatment paradigms for severe asthma and CRSwNP. It may offer new hope for patients who are non-responsive to other biologics (e.g., dupilumab, omalizumab). ✅ Competitors Companies developing TSLP, IL-4/IL-13, or IL-5 biologics will be watching this closely. Verekitug could disrupt market share in the biologic treatment landscape. ⚠️ Caveats The data mentioned is still top-line Phase 2—not yet peer-reviewed or published in full. Regulatory approval is still years away unless fast-tracked. Phase 3 trials will be needed to validate durability, safety, and efficacy in broader populations. 📌 Bottom Line: Verekitug is emerging as a potentially best-in-class TSLP inhibitor, with early data suggesting a powerful, durable eff
0 · Reply
Bionco
Bionco Sep. 3 at 1:41 PM
$ACRS is extremely undervalued compared to $UPB and $CRVS!
1 · Reply
StockScanners
StockScanners Sep. 3 at 3:20 AM
$UPB keep watch if this holds above 19.94
0 · Reply
Softwareking_1
Softwareking_1 Sep. 3 at 12:17 AM
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topstockalerts
topstockalerts Sep. 2 at 8:30 PM
After Hours Top Gainers $STI $IMTE $UPB $RCT $HQY
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BioTechChap
BioTechChap Sep. 2 at 3:27 PM
$UPB Very nice readout today. So quiet here.
1 · Reply