Tearsheet

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 Cash is significant % of market cap
Net D/ENet Debt/Equity. Debt net of cash. Negative indicates net cash. Equity is taken as the Market Capitalization is -55%
Weak multi-year price returns
2Y Excs Rtn is -19%, 3Y Excs Rtn is -107%
Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -6.2 Mil, Op Mgn LTMOperating Margin = Operating Income / Revenue Reflects profitability before taxes and before impact of capital structure (interest payments). is -207100%
1 Megatrend and thematic drivers
Megatrends include Precision Medicine. Themes include Biopharmaceutical R&D, and Targeted Therapies.
  Expensive valuation multiples
P/SPrice/Sales ratio is 2,885x
2   Weak revenue growth
Rev Chg LTMRevenue Change % Last Twelve Months (LTM) is -100%, Rev Chg 3Y AvgRevenue Change % averaged over trailing 3 years is -3.9%, Rev Chg QQuarterly Revenue Change % is null
3   Significant share based compensation
SBC/Rev LTMShare Based Compensation / Revenue (Sales), Last Twelve Months (LTM) is 1100%
4   Not cash flow generative
CFO/Rev LTMCash Flow from Operations / Revenue (Sales), Last Twelve Months (LTM) is -199600%, FCF/Rev LTMFree Cash Flow / Revenue (Sales), Last Twelve Months (LTM) is -199600%
5   Valuation getting more expensive
P/S 6M Chg %Price/Sales change over 6 months. Declining P/S indicates valuation has become less expensive. is 46627%
6   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 -76%
7   Key risks
PULM key risks include [1] a critical dependence on its pending merger with Cullgen to avoid potential liquidation amid severe financial distress, Show more.
0 Cash is significant % of market cap
Net D/ENet Debt/Equity. Debt net of cash. Negative indicates net cash. Equity is taken as the Market Capitalization is -55%
1 Megatrend and thematic drivers
Megatrends include Precision Medicine. Themes include Biopharmaceutical R&D, and Targeted Therapies.
2 Weak multi-year price returns
2Y Excs Rtn is -19%, 3Y Excs Rtn is -107%
3 Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -6.2 Mil, Op Mgn LTMOperating Margin = Operating Income / Revenue Reflects profitability before taxes and before impact of capital structure (interest payments). is -207100%
4 Expensive valuation multiples
P/SPrice/Sales ratio is 2,885x
5 Weak revenue growth
Rev Chg LTMRevenue Change % Last Twelve Months (LTM) is -100%, Rev Chg 3Y AvgRevenue Change % averaged over trailing 3 years is -3.9%, Rev Chg QQuarterly Revenue Change % is null
6 Significant share based compensation
SBC/Rev LTMShare Based Compensation / Revenue (Sales), Last Twelve Months (LTM) is 1100%
7 Not cash flow generative
CFO/Rev LTMCash Flow from Operations / Revenue (Sales), Last Twelve Months (LTM) is -199600%, FCF/Rev LTMFree Cash Flow / Revenue (Sales), Last Twelve Months (LTM) is -199600%
8 Valuation getting more expensive
P/S 6M Chg %Price/Sales change over 6 months. Declining P/S indicates valuation has become less expensive. is 46627%
9 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 -76%
10 Key risks
PULM key risks include [1] a critical dependence on its pending merger with Cullgen to avoid potential liquidation amid severe financial distress, Show more.

Valuation, Metrics & Events

PULM Stock


Why The Stock Moved


Qualitative Assessment

AI Generated Analysis | Feedback



1. Continued Uncertainty and Potential Failure of the Cullgen Merger: On December 18, 2025, Pulmatrix and Cullgen mutually waived the "No Solicitation" clause in their merger agreement, allowing both companies to explore alternative transactions. This development introduced significant uncertainty regarding the completion of the merger, which had previously received stockholder approval but was still awaiting crucial approvals from the China Securities Regulatory Commission (CSRC) and Nasdaq.

2. Prolonged Delays in Regulatory Approvals for the Merger: Despite stockholder approval in June 2025, the merger with Cullgen continued to be contingent on regulatory clearances, particularly from the China Securities Regulatory Commission. The ongoing delays and the need to seek alternative transactions signal a lack of progress towards the anticipated closing, eroding investor confidence.

Show more

Stock Movement Drivers

Return vs. Risk


Price Returns Compared

 202020212022202320242025Total [1]
Returns
PULM Return38%-63%-56%-52%275%-47%-78%
Peers Return6%-10%-20%71%12%104%196%
S&P 500 Return16%27%-19%24%23%16%112%

Monthly Win Rates [3]
PULM Win Rate50%33%42%25%67%33% 
Peers Win Rate47%47%45%52%42%58% 
S&P 500 Win Rate58%75%42%67%75%73% 

Max Drawdowns [4]
PULM Max Drawdown0%-66%-63%-55%-13%-47% 
Peers Max Drawdown-47%-29%-36%-26%-31%-24% 
S&P 500 Max Drawdown-31%-1%-25%-1%-2%-15% 


[1] Cumulative total returns since the beginning of 2020
[2] Peers: INSM, TBPH, ARWR, AMPH, AMRX.
[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 12/19/2025 (YTD)

How Low Can It Go

Unique KeyEventPULMS&P 500
2022 Inflation Shock2022 Inflation Shock  
2022 Inflation Shock% Loss% Loss-96.7%-25.4%
2022 Inflation Shock% Gain to Breakeven% Gain to Breakeven2946.2%34.1%
2022 Inflation ShockTime to BreakevenTime to BreakevenNot Fully Recovered days464 days
2020 Covid Pandemic2020 Covid Pandemic  
2020 Covid Pandemic% Loss% Loss-50.3%-33.9%
2020 Covid Pandemic% Gain to Breakeven% Gain to Breakeven101.0%51.3%
2020 Covid PandemicTime to BreakevenTime to Breakeven158 days148 days
2018 Correction2018 Correction  
2018 Correction% Loss% Loss-98.7%-19.8%
2018 Correction% Gain to Breakeven% Gain to Breakeven7400.0%24.7%
2018 CorrectionTime to BreakevenTime to BreakevenNot Fully Recovered days120 days

Compare to VRTX, AIXC, ALPS, BBOT, EVMN


In The Past

Pulmatrix's stock fell -96.7% during the 2022 Inflation Shock from a high on 2/10/2021. A -96.7% loss requires a 2946.2% 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 Pulmatrix (PULM)

Better Bets than Pulmatrix (PULM)

Latest Trefis Analyses

Title
0ARTICLES

Trade Ideas

Select past ideas related to PULM. 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
17.4%17.4%-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
-6.7%-6.7%-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
10.9%10.9%-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
2.7%2.7%-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
11.4%11.4%-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
17.4%17.4%-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
-6.7%-6.7%-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
10.9%10.9%-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
2.7%2.7%-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
11.4%11.4%-5.1%

Recent Active Movers

Recent Active Movers

More From Trefis

Peer Comparisons for Pulmatrix

Peers to compare with:

Financials

PULMINSMTBPHARWRAMPHAMRXMedian
NamePulmatrixInsmed Theravan.Arrowhea.Amphasta.Amneal P. 
Mkt Price2.37174.8418.7968.1626.6012.5722.70
Mkt Cap0.037.00.99.41.23.92.6
Rev LTM0447808297232,935585
Op Inc LTM-6-990-339815036146
FCF LTM-6-906244157111237134
FCF 3Y Avg-12-68926-2591402017
CFO LTM-6-883244180152328166
CFO 3Y Avg-12-67027-1461782768

Growth & Margins

PULMINSMTBPHARWRAMPHAMRXMedian
NamePulmatrixInsmed Theravan.Arrowhea.Amphasta.Amneal P. 
Rev Chg LTM-100.0%30.3%27.1%23,258.2%-0.0%9.5%18.3%
Rev Chg 3Y Avg-3.9%22.8%16.2%7,719.5%14.8%11.1%15.5%
Rev Chg Q-100.0%52.4%18.5%-0.3%11.7%11.7%
QoQ Delta Rev Chg LTM-99.2%12.3%4.0%44.8%0.1%2.9%3.5%
Op Mgn LTM-207,100.0%-221.5%-40.9%11.9%20.7%12.3%-14.5%
Op Mgn 3Y Avg-69,140.5%-222.0%-73.9%-5,666.8%26.8%11.5%-147.9%
QoQ Delta Op Mgn LTM-204,930.9%11.5%5.3%30.7%-4.4%-1.0%2.2%
CFO/Rev LTM-199,600.0%-197.6%303.4%21.6%21.1%11.2%16.1%
CFO/Rev 3Y Avg-66,664.7%-186.4%3.2%-4,358.9%26.3%10.2%-91.6%
FCF/Rev LTM-199,600.0%-202.7%303.2%18.9%15.3%8.1%11.7%
FCF/Rev 3Y Avg-66,668.6%-191.6%1.4%-5,712.2%20.7%7.5%-95.1%

Valuation

PULMINSMTBPHARWRAMPHAMRXMedian
NamePulmatrixInsmed Theravan.Arrowhea.Amphasta.Amneal P. 
Mkt Cap0.037.00.99.41.23.92.6
P/S2,885.382.811.811.31.71.311.6
P/EBIT-1.4-33.619.166.77.712.510.1
P/E-1.4-31.332.3-5,761.911.1669.34.8
P/CFO-1.4-41.93.952.38.112.06.0
Total Yield-71.9%-3.2%3.1%-0.0%9.0%0.1%0.1%
Dividend Yield0.0%0.0%0.0%0.0%0.0%0.0%0.0%
FCF Yield 3Y Avg-150.1%-7.5%-1.3%-11.1%7.5%12.5%-4.4%
D/E0.00.00.00.00.50.70.0
Net D/E-0.6-0.0-0.3-0.10.30.6-0.0

Returns

PULMINSMTBPHARWRAMPHAMRXMedian
NamePulmatrixInsmed Theravan.Arrowhea.Amphasta.Amneal P. 
1M Rtn-49.2%-12.4%5.0%78.9%4.9%9.2%4.9%
3M Rtn-52.4%20.8%35.4%122.1%-3.8%28.1%24.5%
6M Rtn-68.1%70.3%76.8%344.9%8.3%60.7%65.5%
12M Rtn-60.5%148.2%95.9%250.4%-32.0%61.6%78.8%
3Y Rtn-31.3%779.0%66.3%83.7%-8.0%468.8%75.0%
1M Excs Rtn-48.8%-17.0%3.1%72.0%2.0%6.2%2.5%
3M Excs Rtn-53.2%18.5%31.4%110.6%-6.7%23.6%21.0%
6M Excs Rtn-79.1%52.4%64.3%326.0%-5.7%45.4%48.9%
12M Excs Rtn-74.5%123.8%75.7%193.1%-47.8%42.8%59.3%
3Y Excs Rtn-106.8%703.6%-3.4%36.4%-79.8%368.4%16.5%

Financials

Segment Financials

Revenue by Segment

$ Mil20242023202220212020
Single Segment7 5138
Research and development services and irrevocable license 6   
Total765138


Price Behavior

Short Interest

Short Interest: As Of Date11282025
Short Interest: Shares Quantity5,742
Short Interest: % Change Since 111520254.3%
Average Daily Volume6,790
Days-to-Cover Short Interest1
Basic Shares Quantity3,652,285
Short % of Basic Shares0.2%

Earnings Returns History

Expand for More

 Forward Returns
Earnings Date1D Returns5D Returns21D Returns
10/16/2025-2.5%3.1%2.8%
8/6/2025-3.1%-8.8%-12.6%
3/21/2025-1.7%-5.0%-18.9%
11/8/2024-1.4%126.0%187.0%
8/13/20244.8%-13.5%-18.1%
3/28/20248.0%16.0%25.9%
11/9/2023-3.6%-6.2%-3.1%
8/10/20230.4%-4.6%-12.2%
...
SUMMARY STATS   
# Positive759
# Negative121410
Median Positive4.8%5.8%2.8%
Median Negative-2.1%-6.7%-15.5%
Max Positive8.0%126.0%187.0%
Max Negative-11.6%-13.5%-33.6%

SEC Filings

Expand for More

Report DateFiling DateFiling
93020251016202510-Q 9/30/2025
6302025806202510-Q 6/30/2025
3312025515202510-Q 3/31/2025
12312024321202510-K 12/31/2024
93020241108202410-Q 9/30/2024
6302024813202410-Q 6/30/2024
3312024510202410-Q 3/31/2024
12312023328202410-K 12/31/2023
93020231109202310-Q 9/30/2023
6302023810202310-Q 6/30/2023
3312023512202310-Q 3/31/2023
12312022330202310-K 12/31/2022
93020221110202210-Q 9/30/2022
6302022810202210-Q 6/30/2022
3312022512202210-Q 3/31/2022
12312021329202210-K 12/31/2021