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Compare Stocks › AMGN vs BRK-B

Amgen Inc. (AMGN) vs Berkshire Hathaway Inc. (BRK-B)

AMGN
Amgen Inc.
$349.92
VS
BRK-B
Berkshire Hathaway Inc.
$481.48

Rewards

AMGN
  • ★Gross margin of 70.8% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • ★Return on equity has consistently exceeded 20% over 4 years, indicating efficient use of shareholder capital.
  • ★Each dollar of retained earnings has created $9.01 of market value — management is an exceptional capital allocator.
BRK-B
  • ★Each dollar of retained earnings has created $1.66 of market value — management is creating shareholder value.
  • ★Net debt/EBITDA of -2.2x means the company holds more cash than debt — a net cash position.

Risks

AMGN
  • ⚠ROIC has declined by 6.4 percentage points over the observed period, which may signal competitive erosion.
  • ⚠High leverage (6.40x debt/equity) combined with thin interest coverage (-1.0x) poses financial risk.
  • ⚠Altman Z-Score of 1.69 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.
BRK-B
  • ⚠Berkshire Hathaway Inc. scores only 16/100 on the Economic Moat Score, suggesting limited durable competitive advantages.
  • ⚠Trailing P/E of 15.5x is 75% above the historical average of 8.9x — the stock trades at a premium to its own history.

Key Valuation Metrics

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AMGN
BRK-B
Valuation
$7.50B
Free Cash Flow
$36.80B
3.98%
FCF Yield
3.54%
24.57
Trailing P/E
15.50
15.03
Forward P/E
22.11
Quality & Moat
13.84%
ROIC
11.31%
89.06%
ROE
9.30%
70.78%
Gross Margin
26.15%
0.22
PEG Ratio
N/A
Balance Sheet Safety
6.40
Debt / Equity
0.19
N/A
Interest Coverage
N/A
2.79
Net Debt / EBITDA
-2.15
2.88%
Dividend Yield
N/A
AMGN: 5Ties: 1BRK-B: 4
AMGNBRK-B

Historical Fundamentals

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AMGN

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.

BRK-B

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.

$1 Retained Earnings Test

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AMGN
$9.01
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$4.01B
Δ Market Cap
+$36.10B
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
BRK-B
$1.66
created per $1 retained over 3 years
Value Creator
Σ Retained
$252.19B
Δ Market Cap
+$417.98B
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer

Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer

Discounted Cash Flow (DCF) Analysis

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AMGN
118.3% Overvalued
Price is 118.3% above estimated fair value
Current Price: $349.92
Fair Value: $160.31
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
BRK-B
31.1% Margin of Safety
Price is 31.1% below estimated fair value
Current Price: $481.48
Fair Value: $699.14
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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AMGN

What growth rate is the market pricing in at $350?

+13.4%
Market-Implied Owner Earnings Growth
Standard FCF implies +13.8%

The market implies +13.4% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +13.8%, reflecting heavy growth investment.

BRK-B

What growth rate is the market pricing in at $481?

+0.7%
Market-Implied Owner Earnings Growth
Standard FCF implies +8.8%

The market implies +0.7% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +8.8%, reflecting heavy growth investment.

Economic Moat Score

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AMGN
54/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None

Narrow moat with reinvestment efficiency as the key competitive advantage. Improving roic consistency would strengthen the moat.

Composite score measuring competitive advantage durability across four dimensions: returns above cost of capital, pricing power stability, revenue predictability, and capital efficiency. Based on 4 years of fundamental data.
BRK-B
16/100
No Moat
70+ Wide · 40-69 Narrow · <40 None

No durable moat detected, though reinvestment efficiency shows some competitive positioning. The business lacks consistent evidence of sustainable advantages.

Composite score measuring competitive advantage durability across four dimensions: returns above cost of capital, pricing power stability, revenue predictability, and capital efficiency. Based on 5 years of fundamental data.

Forensic Accounting

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AMGN
-2.24
Unlikely Manipulator
Above -1.78 = likely manipulator · -2.22 to -1.78 = grey zone

M-Score Trend

Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.
BRK-B
-2.41
Unlikely Manipulator
Above -1.78 = likely manipulator · -2.22 to -1.78 = grey zone

M-Score Trend

Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.

Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.

Ownership Breakdown

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AMGN
Insiders 0.2%Institutions 85.3%Retail & Other 14.5%
No. of Institutional Holders3,887
High insider ownership aligns management incentives with shareholders — a key signal in Buffett-style analysis. Institutional concentration can indicate smart-money conviction but also crowding risk.
BRK-B
Insiders 0.3%Institutions 66.2%Retail & Other 33.5%
No. of Institutional Holders5,852
High insider ownership aligns management incentives with shareholders — a key signal in Buffett-style analysis. Institutional concentration can indicate smart-money conviction but also crowding risk.

High insider ownership aligns management incentives with shareholders. Institutional concentration can indicate smart-money conviction but also crowding risk.

Insider Buying Activity

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AMGN
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises
BRK-B
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises

Open market purchases · includes direct & indirect ownership · excludes option exercises.

Insider Selling Activity

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AMGN
2
Sells (3M)
8
Sells (12M)
Total value (12M): $25.91M
SANTOS ESTEBAN
Officer
$20.77M
@ $379.12 · 2026-02-26
BUSCH MATTHEW C.
Officer
$375,790
@ $375.79 · 2026-02-19
GRYGIEL NANCY A
Officer
$1.06M
@ $337.26 · 2025-11-20
GORDON MURDO
Officer
$2.32M
@ $336.83 · 2025-11-12
KHOSLA RACHNA
Officer
$299,256
@ $336.24 · 2025-11-12
GRYGIEL NANCY A
Officer
$376,280
@ $296.99 · 2025-08-20
KHOSLA RACHNA
Officer
$434,520
@ $289.68 · 2025-06-05
BUSCH MATTHEW C.
Officer
$279,690
@ $279.69 · 2025-05-02
REESE DAVID M.
Chief Technology Officer
$10.23M
@ $301.56 · 2025-02-21
SANTOS ESTEBAN
Officer
$2.55M
@ $292.84 · 2025-02-19
MILLER DEREK
Officer
$593,934
@ $293.45 · 2025-02-19
GORDON MURDO
Officer
$2.59M
@ $294.79 · 2025-02-11
GRAHAM JONATHAN P
General Counsel
$7.34M
@ $293.12 · 2025-02-07
GRYGIEL NANCY A
Officer
$483,808
@ $304.47 · 2025-02-05
GRYGIEL NANCY A
Officer
$662,802
@ $313.09 · 2024-05-03
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
BRK-B
0
Sells (3M)
0
Sells (12M)
No open market insider sales found.
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives

Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives.

🎭 Mr. Market's Mood

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AMGN
FearGreed
😐Neutral(49/100)

"Market is pricing this stock without strong emotion in either direction"

Composite sentiment score based on 6 market signals. Inspired by Buffett's "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.
BRK-B
FearGreed
😐Neutral(48/100)

"Market is pricing this stock without strong emotion in either direction"

Composite sentiment score based on 6 market signals. Inspired by Buffett's "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.

Composite sentiment score based on market signals. Inspired by Buffett’s "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.

⚖️ Buffett Signal

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AMGN
⚪Awaiting DCF Data

The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.

DCF Margin of Safety: N/AMr. Market's Mood: Neutral (49)
BRK-B
⚪Awaiting DCF Data

The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.

DCF Margin of Safety: N/AMr. Market's Mood: Neutral (48)
View AMGN Full AnalysisView BRK-B Full Analysis