Auriga Guide Series
Begin with Equity Fundamentals
Understanding Private Company Equity and Employee Stock Options in a general institutional-style overview of equity fundamentals frequently discussed in finance, accounting, and investment management contexts.
01
Introduction to Equity Ownership
Why Equity Matters
For many employees at private technology and growth companies, equity compensation can become one of the most financially significant components of overall compensation. Stock options, restricted stock units (RSUs), and other forms of equity participation are commonly used to align employees with long-term company growth and shareholder value creation.
However, many employees receive equity grants without fully understanding:
What they actually own
How vesting works
The difference between common and preferred stock
The risks associated with private company shares
Tax implications associated with exercises or sales
Liquidity limitations in private markets
How valuation differs between public and private companies
Understanding these concepts before making decisions can help employees evaluate potential outcomes more carefully and avoid common misconceptions regarding private company equity.
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This educational material is intended to provide a general institutional-style overview of equity fundamentals frequently discussed in finance, accounting, and investment management contexts.
What Is Equity?
Equity represents an ownership interest in a company.
When an employee receives equity compensation, they are typically granted rights linked to the value of the company over time. Depending on the structure of the award, employees may:
Receive the right to purchase shares in the future
Receive actual shares subject to vesting
Participate in company appreciation
Potentially benefit from liquidity events such as acquisitions, IPOs, or private secondary transactions
In public companies, shares can often be bought and sold relatively easily through public exchanges. In private companies, however, shares are generally illiquid and subject to transfer restrictions.
Common Types of Employee
Equity Incentive Stock Options (ISOs)
ISOs are a form of stock option available only to employees under U.S. tax rules. They provide the right to purchase shares at a predetermined exercise price.
Potential characteristics include:
Favorable tax treatment under certain holding conditions
Exposure to Alternative Minimum Tax (AMT) considerations
Vesting schedules over multiple years
Transfer restrictions in private companies
Non-Qualified Stock Options (NSOs)
NSOs also provide the right to purchase shares at a fixed exercise price but generally do not receive the same tax treatment as ISOs.
Characteristics may include:
Broader eligibility
Taxable ordinary income upon exercise
Greater flexibility in some circumstances
Restricted Stock Units (RSUs)
RSUs represent a promise to deliver shares in the future after vesting conditions are satisfied.
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RSUs are commonly associated with:
Double-trigger vesting structures in private companies
Taxable ordinary income upon settlement
Reduced upfront exercise decisions compared to options
02
Understanding Vesting and Ownership
Vesting Schedules
Most employee equity awards vest over time.
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A common structure is:
4-year vesting schedule
1-year cliff
Monthly or quarterly vesting thereafter
This structure is intended to incentivize long-term employee retention.
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Example:
6 months
0%
12 months
25%
24 months
50%
48 months
100%
Time Employed
Equity Vested
Employees typically do not fully own unvested equity.
Exercise Price
For stock options, the exercise price (or strike price) is the predetermined price at which the employee may purchase shares.
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If the company's value increases above the exercise price, the option may possess intrinsic value.
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Example:
Exercise Price
$5/share
Estimated Current Share Value
$25/share
Potential Spread
$20/share
Item
Amount
This difference is often referred to as the “spread.”
Liquidity vs. Paper Value
A common misconception is that a higher valuation automatically translates into immediate wealth.
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In private companies:
Shares may not be freely transferable
Company approval may be required for sales
Buyers may be limited
Secondary market pricing may differ from headline valuations
Liquidity windows may be infrequent
As a result, private company equity can involve substantial uncertainty regarding timing, pricing, and realizable value.
Preferred vs. Common Stock
Employees generally hold common stock or options linked to common stock.
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Institutional investors often purchase preferred stock with additional rights, including:
Liquidation preferences
Anti-dilution protections
Information rights
Voting protections
Preferred dividends in some cases
As a result, common stock and preferred stock can behave differently in various transaction outcomes.
03
Valuation and Private Market Dynamics
How Private Companies Are Valued
Private company valuation methodologies may include:
Revenue multiples
EBITDA multiples
Discounted cash flow analysis
Comparable company analysis
Recent financing rounds
Secondary transaction pricing
Valuations are influenced by market conditions, growth expectations, profitability, liquidity, and investor sentiment.
What Is a 409A Valuation?
A 409A valuation is an independent appraisal commonly used to estimate the fair market value of common stock for tax and option-grant purposes under U.S. tax regulations.
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Importantly:
409A values often differ from preferred stock financing prices
They are not necessarily indicative of future sale prices
409A values may be discounted due to illiquidity and minority ownership considerations
Dilution
Ownership percentages can decline over time as companies issue additional shares.
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Dilution may occur through:
New financing rounds
Employee option pools
Convertible securities
Acquisitions involving equity issuance
Even if ownership percentage declines, the total company value may increase.
Example:
Employee owns 1%
Employee owns 0.7%
Before Financing
After Financing
Secondary Markets
Private secondary transactions involve the purchase and sale of existing shares between shareholders and investors.
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Participants may include:
Employees
Former employees
Early investors
Institutional buyers
Specialized secondary funds
Secondary transactions may require:
Company approval
Compliance review
Transfer agent coordination
Legal documentation
Investor qualification verification
Private secondary markets can differ materially from public equity markets in terms of transparency, liquidity, and pricing efficiency.
04
Risk, Taxes, and Decision Considerations
Concentration Risk
Employees may face concentrated exposure if both compensation and personal net worth are heavily tied to a single private company.
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Risks may include:
Valuation declines
Delayed liquidity events
Company-specific operational risks
Financing risk
Regulatory or market disruptions
Diversification is a common institutional risk management principle frequently discussed in finance literature.
Tax Considerations
Employee equity can involve complex tax considerations.
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Potential issues may include:
Ordinary income taxation
Capital gains taxation
Alternative Minimum Tax (AMT)
Withholding obligations
State tax treatment
Timing-related tax consequences
Tax treatment depends on individual circumstances and award structures.
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Employees should generally consult qualified tax professionals before making decisions regarding exercises or sales.
Liquidity Planning
Questions employees may consider include:
What percentage of my net worth is tied to one company?
What is my exercise cost?
What are the estimated tax obligations?
How long might liquidity take?
What restrictions apply to transfers?
How might future financing rounds affect dilution?
Institutional investors often evaluate both upside potential and downside risk scenarios when analyzing private investments.
Important Considerations
Private company equity can involve substantial uncertainty.
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Potential outcomes may vary significantly depending on:
Company performance
Capital structure
Market conditions
Timing of liquidity events
Regulatory developments
Financing environments
Past valuation growth does not guarantee future outcomes.
05
Risk Considerations, Transaction Integrity & Regulatory Considerations
Private Securities Transactions Involve Significant Risk
Private company equity differs materially from publicly traded securities.
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Private securities transactions may involve:
Limited liquidity
Restricted transferability​
Incomplete information access
Valuation uncertainty
Company approval requirements
Counterparty risk
Regulatory and contractual restrictions
Employees and shareholders should understand that private company equity can become entirely illiquid or lose substantial value under certain circumstances.
Company Consent & Transfer Restrictions
Many private companies maintain strict contractual transfer restrictions governing employee equity, stock options, vested shares, and secondary transactions.
These restrictions may arise under:
Equity incentive plans
Stock option agreements
Shareholder agreements
Company bylaws
Rights of first refusal (ROFRs)
Company repurchase rights
Transfer restriction provisions
Transactions conducted outside approved company procedures may expose shareholders and counterparties to substantial risk.
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Potential consequences may include:
Refusal by the company or transfer agent to recognize the transfer
Failure to record ownership on the company capitalization table​
Cancellation or voiding of attempted transfers
Contractual disputes regarding ownership rights
Loss of voting or economic rights
Inability to realize future liquidity proceeds
In certain circumstances, improperly structured or unauthorized transactions could result in partial or complete loss of claimed economic interests relating to the underlying equity.
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Employees and shareholders should carefully review all applicable company documentation and obtain appropriate professional advice before entering into any private securities transaction.
Increasing Scrutiny of Certain SPV & Indirect Ownership Structures
In recent years, portions of the private secondary market have seen increased use of:
Special purpose vehicles (SPVs)
Layered SPV arrangements
Forward transfer structures
Synthetic or indirect economic participation arrangements
These structures are sometimes marketed as mechanisms to obtain economic exposure to private companies outside traditional company-approved transfer processes.
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In many cases:
Investors may not appear directly on the company capitalization table
Investors may possess only indirect contractual interests
Transfer rights may remain subject to company restrictions
Economic exposure may differ materially from direct share ownership
Fees, carried interests, or structural discounts may materially reduce investor economics
A number of late-stage private companies have recently increased scrutiny regarding unauthorized or non-recognized secondary market structures and quotations.
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Certain issuers have publicly stated that:
Company approval remains necessary for recognized ownership transfers
Unauthorized transfer structures may not be recognized by the company
Secondary quotations on external platforms may not reflect approved or executable transactions
Recent public reporting concerning private market transfer restrictions involving high-profile artificial intelligence companies, including statements associated with Anthropic, has highlighted the increasing focus many issuers are placing on cap table integrity, shareholder controls, and approved transfer processes.
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Private market participants should carefully distinguish between:
Direct recognized ownership interests
Indirect economic exposure arrangements
These structures may involve materially different legal and economic rights.
Regulatory Considerations & Use of Registered Intermediaries
Private securities transactions are subject to U.S. federal and state securities laws and may require the involvement of appropriately registered intermediaries depending on the nature of the activity being conducted.
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Activities involving:
Transaction-based compensation
Solicitation of securities transactions
Matching buyers and sellers
Marketing securities interests
Negotiating securities transactions
Advising on securities transactions
may require registration with the:
U.S. Securities and Exchange Commission (SEC)
Financial Industry Regulatory Authority (FINRA)
Transactions conducted outside applicable regulatory frameworks may expose participants to:
Regulatory enforcement risk
Rescission claims
Contract enforceability disputes
Financial penalties
Civil liability exposure
Participants should consider whether any intermediary involved in a transaction is appropriately registered and operating within applicable securities law requirements.
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Broker-dealers participating in private securities transactions are generally expected to comply with applicable FINRA conduct standards, including requirements relating to fair dealing and reasonable compensation practices.
Transaction Costs & Broker Compensation
Private market transactions often involve:
Broker-dealer fees
Placement fees
SPV management fees
Administrative expenses
Legal fees
Transfer agent expenses
Participants should carefully review all transaction economics and understand how fees may impact net proceeds or investment returns.
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Registered broker-dealers are generally subject to regulatory standards relating to fair and reasonable compensation practices, including considerations reflected in FINRA guidance regarding excessive markups, commissions, or transaction-based compensation arrangements.
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Investors and shareholders should evaluate:
Total effective fees
Structural dilution
Embedded carried interest arrangements
Discount mechanics
Net realized economics after all expenses
particularly in complex secondary or SPV-based structures.
06
Suggested Educational Topics
Employees interested in learning more may explore topics such as:
Basics of corporate finance
Equity valuation methodologies
Capital structure fundamentals
Private market liquidity
Venture capital financing
Portfolio diversification principles
Tax treatment of equity compensation
Risk management frameworks
07
Academic & Professional References
The following resources are frequently referenced in finance and investment education contexts:
CFA Institute Materials
Equity Investments
Corporate Issuers
Portfolio Management
Alternative Investments
Private Market Valuation Concepts
Recommended Reading
Investment Valuation — Aswath Damodaran
Venture Deals — Brad Feld & Jason Mendelson
Private Equity at Work — Steven Kaplan & Per Strömberg
The Essays of Warren Buffett — Lawrence Cunningham
Institutional & Regulatory Sources
U.S. Securities and Exchange Commission (SEC)
FINRA Investor Education Resources
IRS Publications relating to stock compensation
National Venture Capital Association (NVCA) educational materials
08
Educational Purpose Only
This material is provided solely for educational and informational purposes within a general institutional framework.
It does not constitute:
Investment advice
Legal advice
Tax advice
A recommendation to engage in any securities transaction
An offer to buy or sell securities
A recommendation regarding any specific company, platform, intermediary, or transaction structure
Private securities transactions involve substantial risk, including the potential loss of invested capital or equity interests.
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Individuals should consult qualified legal, tax, and financial professionals before making decisions relating to private company equity, stock option exercises, secondary transactions, or liquidity events.