Tearsheet

Armata Pharmaceuticals (ARMP)


Market Price (12/4/2025): $5.92 | Market Cap: $214.3 Mil
Sector: Health Care | Industry: Biotechnology

Armata Pharmaceuticals (ARMP)


Market Price (12/4/2025): $5.92
Market Cap: $214.3 Mil
Sector: Health Care
Industry: Biotechnology

Investment Highlights Why It Matters Which of these 2 stories sounds closer for this stock?

1. Generates cash flow

The stock generated 4% or more of the share price (called cash flow yield), and shows moderate 10-15% or more growth.

2. Riding a trend

Think Tesla during the pandemic of 2020 when EVs were riding a cultural high, or Nvidia in the current AI boom, or even Figma. These companies don’t have enough yield, or, enough growth, or both - however - they are riding a trend. They have momentum. These can be more volatile - they don’t have the floor of strong cash flow


0 Megatrend and thematic drivers
Megatrends include Biotechnology & Genomics, and Precision Medicine. Themes include Antimicrobial Resistance Solutions, Targeted Therapies, Show more.
Very low revenue
Rev LTMTotal Revenue or Sales, Last Twelve Months is 0
1  Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -35 Mil
2  Debt is significant
Net D/ENet Debt/Equity. Debt net of cash. Negative indicates net cash. Equity is taken as the Market Capitalization is 203%
3  Stock price has recently run up significantly
6M Rtn6 month market price return is 203%, 12M Rtn12 month market price return is 180%
4  Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -42%
5  High stock price volatility
Vol 12M is 151%
0 Megatrend and thematic drivers
Megatrends include Biotechnology & Genomics, and Precision Medicine. Themes include Antimicrobial Resistance Solutions, Targeted Therapies, Show more.
1 Very low revenue
Rev LTMTotal Revenue or Sales, Last Twelve Months is 0
2 Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -35 Mil
3 Debt is significant
Net D/ENet Debt/Equity. Debt net of cash. Negative indicates net cash. Equity is taken as the Market Capitalization is 203%
4 Stock price has recently run up significantly
6M Rtn6 month market price return is 203%, 12M Rtn12 month market price return is 180%
5 Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -42%
6 High stock price volatility
Vol 12M is 151%

Valuation, Metrics & Events

ARMP Stock


Why The Stock Moved


Qualitative Assessment

AI Generated Analysis | Feedback

1. Positive Mid-Stage Trial Data for AP-SA02. On October 22 and 23, 2025, Armata Pharmaceuticals announced highly positive mid-stage (Phase 1b/2a diSArm study) trial results for its investigational bacteriophage therapy, AP-SA02, which targets Staphylococcus aureus bacteremia (SAB). The data, presented at IDWeek 2025, demonstrated significantly higher cure rates and no relapse among patients treated with AP-SA02 in combination with standard antibiotic therapy. This marked the first randomized clinical study to confirm the efficacy of intravenous phage therapy for *S. aureus* infections.

2. Plans for Pivotal Phase 3 Study. Following the encouraging Phase 2a data for AP-SA02, Armata Pharmaceuticals revealed plans to advance AP-SA02 into a pivotal Phase 3 study in 2026, pending alignment with the FDA. This announcement outlined a clear path for the drug towards potential commercialization.

Show more

Stock Movement Drivers

Return vs. Risk


Price Returns Compared

 202020212022202320242025Total [1]
Returns
ARMP Return-8%84%-77%161%-43%187%63%
Peers Return2%-1%6%8%-0%2%17%
S&P 500 Return16%27%-19%24%23%16%112%

Monthly Win Rates [3]
ARMP Win Rate42%42%25%33%50%70% 
Peers Win Rate13%8%13%12%10%90% 
S&P 500 Win Rate58%75%42%67%75%70% 

Max Drawdowns [4]
ARMP Max Drawdown-21%-1%-83%-11%-43%-51% 
Peers Max Drawdown-2%-5%0%-0%-1%-2% 
S&P 500 Max Drawdown-31%-1%-25%-1%-2%-15% 


[1] Cumulative total returns since the beginning of 2020
[2] Peers: VRTX, AIXC, ALPS, BBOT, EVMN.
[3] Win Rate = % of calendar months in which monthly returns were positive
[4] Max drawdown represents maximum peak-to-trough decline within a year
[5] 2025 data is for the year up to 12/3/2025 (YTD)

How Low Can It Go

Unique KeyEventARMPS&P 500
2022 Inflation Shock2022 Inflation Shock  
2022 Inflation Shock% Loss% Loss-85.2%-25.4%
2022 Inflation Shock% Gain to Breakeven% Gain to Breakeven573.4%34.1%
2022 Inflation ShockTime to BreakevenTime to Breakeven1029 days464 days
2020 Covid Pandemic2020 Covid Pandemic  
2020 Covid Pandemic% Loss% Loss-46.8%-33.9%
2020 Covid Pandemic% Gain to Breakeven% Gain to Breakeven88.0%51.3%
2020 Covid PandemicTime to BreakevenTime to Breakeven318 days148 days
2018 Correction2018 Correction  
2018 Correction% Loss% Loss-96.6%-19.8%
2018 Correction% Gain to Breakeven% Gain to Breakeven2865.4%24.7%
2018 CorrectionTime to BreakevenTime to BreakevenNot Fully Recovered days120 days
2008 Global Financial Crisis2008 Global Financial Crisis  
2008 Global Financial Crisis% Loss% Loss-98.6%-56.8%
2008 Global Financial Crisis% Gain to Breakeven% Gain to Breakeven6812.5%131.3%
2008 Global Financial CrisisTime to BreakevenTime to Breakeven2354 days1480 days

Compare to VRTX, AIXC, ALPS, BBOT, EVMN


In The Past

Armata Pharmaceuticals's stock fell -85.2% during the 2022 Inflation Shock from a high on 2/10/2021. A -85.2% loss requires a 573.4% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth over time.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

About Armata Pharmaceuticals (ARMP)

Better Bets than Armata Pharmaceuticals (ARMP)

Trade Ideas

Select past ideas related to ARMP. For more, see Trefis Trade Ideas.

Unique KeyDateTickerCompanyCategoryTrade Strategy6M Fwd Rtn12M Fwd Rtn12M Max DD
CRL_11142025_Dip_Buyer_FCFYield11142025CRLCharles River Laboratories InternationalDip BuyDB | FCFY OPMDip Buy with High FCF Yield and High Margin
Buying dips for companies with high FCF yield and meaningfully high operating margin
4.1%4.1%-3.7%
GDRX_11142025_Dip_Buyer_High_CFO_Margins_ExInd_DE11142025GDRXGoodRxDip BuyDB | CFO/Rev | Low D/EDip Buy with High Cash Flow Margins
Buying dips for companies with significant cash flows from operations and reasonable debt / market cap
-9.8%-9.8%-11.8%
ASTH_11142025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11142025ASTHAstrana HealthDip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
6.0%6.0%-5.5%
SGRY_11142025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11142025SGRYSurgery PartnersDip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
9.7%9.7%-1.4%
TFX_11072025_Dip_Buyer_FCFYield11072025TFXTeleflexDip BuyDB | FCFY OPMDip Buy with High FCF Yield and High Margin
Buying dips for companies with high FCF yield and meaningfully high operating margin
6.2%6.2%-5.1%
Unique KeyDateTickerCompanyCategoryTrade Strategy6M Fwd Rtn12M Fwd Rtn12M Max DD
CRL_11142025_Dip_Buyer_FCFYield11142025CRLCharles River Laboratories InternationalDip BuyDB | FCFY OPMDip Buy with High FCF Yield and High Margin
Buying dips for companies with high FCF yield and meaningfully high operating margin
4.1%4.1%-3.7%
GDRX_11142025_Dip_Buyer_High_CFO_Margins_ExInd_DE11142025GDRXGoodRxDip BuyDB | CFO/Rev | Low D/EDip Buy with High Cash Flow Margins
Buying dips for companies with significant cash flows from operations and reasonable debt / market cap
-9.8%-9.8%-11.8%
ASTH_11142025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11142025ASTHAstrana HealthDip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
6.0%6.0%-5.5%
SGRY_11142025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11142025SGRYSurgery PartnersDip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
9.7%9.7%-1.4%
TFX_11072025_Dip_Buyer_FCFYield11072025TFXTeleflexDip BuyDB | FCFY OPMDip Buy with High FCF Yield and High Margin
Buying dips for companies with high FCF yield and meaningfully high operating margin
6.2%6.2%-5.1%

Recent Active Movers

Recent Active Movers

More From Trefis

Peer Comparisons for Armata Pharmaceuticals

Peers to compare with:

Financials

ARMPVRTXAIXCALPSBBOTEVMNMedian
NameArmata P.Vertex P.AIxCryptoALPS BridgeBi.Evommune  
Mkt Price5.99463.132.541.0711.0721.228.53
Mkt Cap0.2118.4----59.3
Rev LTM011,7230-0100
Op Inc LTM-35-92-5--93-70-70
FCF LTM-323,337-6--60-64-32
FCF 3Y Avg-442,064-10----10
CFO LTM-323,718-6--60-64-32
CFO 3Y Avg-402,419-10----10

Growth & Margins

ARMPVRTXAIXCALPSBBOTEVMNMedian
NameArmata P.Vertex P.AIxCryptoALPS BridgeBi.Evommune  
Rev Chg LTM-10.3%----10.3%
Rev Chg 3Y Avg-10.5%----10.5%
Rev Chg Q-11.0%----11.0%
QoQ Delta Rev Chg LTM-2.7%----2.7%
Op Mgn LTM--0.8%----700.7%-350.7%
Op Mgn 3Y Avg-26.2%----26.2%
QoQ Delta Op Mgn LTM-1.0%----1.0%
CFO/Rev LTM-31.7%----635.6%-302.0%
CFO/Rev 3Y Avg-23.1%----23.1%
FCF/Rev LTM-28.5%----636.5%-304.0%
FCF/Rev 3Y Avg-19.8%----19.8%

Valuation

ARMPVRTXAIXCALPSBBOTEVMNMedian
NameArmata P.Vertex P.AIxCryptoALPS BridgeBi.Evommune  
Mkt Cap0.2118.4----59.3
P/S-8.5----8.5
P/EBIT-5.722.4----8.4
P/E-2.727.2----12.3
P/CFO-2.226.9----12.4
Total Yield-37.4%3.7%-----16.9%
Dividend Yield0.0%0.0%----0.0%
FCF Yield 3Y Avg-74.8%2.3%-----36.3%
D/E2.10.0----1.1
Net D/E2.0-0.0----1.0

Returns

ARMPVRTXAIXCALPSBBOTEVMNMedian
NameArmata P.Vertex P.AIxCryptoALPS BridgeBi.Evommune  
1M Rtn24.0%8.7%---9.9%-8.7%
3M Rtn99.7%16.8%--12.5%-16.8%
6M Rtn203.3%3.9%----103.6%
12M Rtn179.9%1.3%----90.6%
3Y Rtn166.2%44.1%----105.2%
1M Excs Rtn24.0%8.7%---9.9%-8.7%
3M Excs Rtn96.3%11.3%--4.5%-11.3%
6M Excs Rtn188.6%-10.8%----88.9%
12M Excs Rtn146.9%-14.6%----66.1%
3Y Excs Rtn112.4%-25.9%----43.3%

Financials

Segment Financials

Revenue by Segment

$ Mil20242023202220212020
Business of developing a pathogen-specific bacteriophage therapeutics for the treatment of5    
Total5    


Operating Income by Segment
$ Mil20242023202220212020
Business of developing a pathogen-specific bacteriophage therapeutics for the treatment of-41    
Total-41    


Net Income by Segment
$ Mil20242023202220212020
Business of developing a pathogen-specific bacteriophage therapeutics for the treatment of-69    
Total-69    


Assets by Segment
$ Mil20242023202220212020
Business of developing a pathogen-specific bacteriophage therapeutics for the treatment of 96704025
Total 96704025


Price Behavior

Short Interest

Short Interest: As Of Date11142025
Short Interest: Shares Quantity157,247
Short Interest: % Change Since 10312025410.1%
Average Daily Volume131,974
Days-to-Cover Short Interest1.19
Basic Shares Quantity36,193,479
Short % of Basic Shares0.4%

SEC Filings

Expand for More

Report DateFiling DateFiling
6302025812202510-Q 6/30/2025
3312025514202510-Q 3/31/2025
12312024321202510-K 12/31/2024
93020241113202410-Q 9/30/2024
6302024813202410-Q 6/30/2024
3312024507202410-Q 3/31/2024
12312023321202410-K 12/31/2023
93020231114202310-Q 9/30/2023
6302023814202310-Q 6/30/2023
3312023511202310-Q 3/31/2023
12312022316202310-K 12/31/2022
93020221109202210-Q 9/30/2022
6302022811202210-Q 6/30/2022
3312022512202210-Q 3/31/2022
12312021317202210-K 12/31/2021
93020211110202110-Q 9/30/2021