Case Analysis / Legal Updates
Corporate Investment Attraction | Supreme Court Judgment Holding That a Person Involved in Investment Negotiations May Qualify as an "Agent of the Listed Company" and Bear Liability for Conveying Undisclosed Information
This case relating to corporate investment attraction turned on whether an outsider who substantially participated in a listed company's negotiations for foreign (Chinese) capital investment and the acquisition of management control qualified as an "agent of the listed corporation" under the Financial Investment Services and Capital Markets Act, and whether that person conveyed material undisclosed information concerning the investment to acquaintances and thereby allowed it to be used in stock trading.
The Supreme Court held that an "agent" is not limited to a person holding the power of agency under the Civil Act, and may include a person who in fact performed company affairs upon delegation or entrustment, and it accordingly reversed and remanded the lower court's acquittal. (Supreme Court, Judgment of December 4, 2025, 2021 Do 11654)
1. Corporate Investment Attraction | Overview of the Case
This case, which arose in the course of corporate investment attraction, turned on whether an outsider who substantially participated in a listed company's negotiations for foreign capital investment and the acquisition of management control qualified as an "agent of the listed corporation" under the Financial Investment Services and Capital Markets Act, and whether his act of conveying material undisclosed information concerning the investment to acquaintances and thereby allowing it to be used in stock trading was subject to punishment.
The Supreme Court held that the scope of an agent cannot be limited to a person formally holding the power of agency under the Civil Act, and it accordingly reversed and remanded the lower court's acquittal.
Background of the Case
While holding a large stake in a KOSDAQ-listed company (Non-indicted Company 1), the defendant, at the request of the representative director, became involved in identifying Chinese capital investors and acquirers and in conducting negotiations.
In that process, he learned of the progress of an investment agreement involving a third-party allotment of new shares for consideration and a change of the largest shareholder, and he was indicted on the charge that he conveyed that information to acquaintances in a hobby club and induced them to purchase shares.
The defendant's acquaintances purchased intensively over a short period before disclosure and then sold during the period of a sharp price rise immediately after disclosure, realizing substantial gains.
Financial Investment Services and Capital Markets Act, Article 174 (Prohibition of Use of Material Undisclosed Information)
hereinafter the same shall apply in this paragraph and in Article 443 (1) 1] in trading or any other transaction of specified securities, etc. (including the specified securities, etc. issued by a corporation scheduled for listing, etc.; hereinafter the same shall apply in Article 443 (1) 1), or allow another person to use it.
1. A person who has become aware of material undisclosed information in connection with his duties as the corporation (including its affiliated companies; hereinafter the same shall apply in this subparagraph and subparagraph 2) or as an officer, employee, or agent of the corporation
The Lower Court's Determination
The lower court (Seoul High Court) entered an acquittal on the charges against the defendant. The gist is as follows.
Even assuming that he was an agent, it is difficult to conclude that the defendant allowed his acquaintances to use the material undisclosed information.
2. Corporate Investment Attraction | The Supreme Court's Determination
The Supreme Court determined as follows with respect to the case, which arose in the course of corporate investment attraction.
An "Agent of the Listed Corporation" Is Not Limited to an Agent Under the Civil Act
The Supreme Court emphasized the legislative purpose of Article 174 of the Financial Investment Services and Capital Markets Act (Prohibition of Use of Material Undisclosed Information), namely the protection of investors and the fairness of the market, and held that construing the scope of an agent narrowly would create a regulatory gap.
The core of the Supreme Court's determination is as follows.
- In determining whether a person is an agent, what matters is the substance rather than the form, position, or title.
- A person may qualify as an agent if he performed company affairs on the company's behalf, in accordance with the company's intent, upon delegation or entrustment of those affairs.
- If a person in fact performed company affairs, such as advising on contract terms, participating in negotiations, sharing the course of the negotiations and exchanging opinions, and coordinating meeting schedules, he may be regarded as an "agent."
In short, the purport is that the lower court's premise that "there is no agency because there is no legal power of agency" is difficult to accept.
The Investment Attraction Information May Be Regarded as "Material Undisclosed Information"
The Supreme Court held that it cannot be concluded that "information prior to the finalization of the final terms is not material information."
It reaffirmed the legal principle that, even if the internal decision-making process has not been completed, information may be recognized as material undisclosed information once it has become sufficiently concrete that a reasonable investor would assess its likelihood of realization and its significance and reflect this in an investment judgment.
It emphasized that the information in this case, structured as a capital increase for consideration and a change of the largest shareholder, ordinarily constitutes information that may have a material effect on the stock price.
The Acquaintances' Purchasing Pattern Strongly Supports the Possibility of the Use of Information
The Supreme Court specifically pointed out that the trading conduct of the acquaintances who heard the relevant information from the defendant is difficult to view as "coincidental investment."
- Intensive purchases over approximately 20 days immediately before disclosure
- Use of leverage, such as loans and borrowings, rather than surplus funds
- Sale of the entire holding within a short period after disclosure and realization of substantial gains
- A sharp purchasing pattern differing from their prior investment tendencies, and the lack of clarity as to the reasons for purchase
Taking these circumstances together, the Supreme Court reversed and remanded the case on the basis that the possibility that the information was used following the defendant's provision of it is difficult to exclude, and that the lower court's acquittal was premature.
3. Corporate Investment Attraction | Examples of Material Undisclosed Information

Under the Financial Investment Services and Capital Markets Act, "material undisclosed information" means internal information concerning a listed corporation's management, financial condition, business performance, and the like that may have a material effect on a reasonable investor's investment judgment and that has not yet been disclosed.
The representative examples that arise in practice are as follows.
- The progress of a third-party allotment of new shares for consideration, the attraction of large-scale investment, or negotiations for the acquisition or sale of management control
- A scheduled change of the largest shareholder
- A scheduled conclusion or termination of a large-scale order contract
- The occurrence of a large-scale loss, accounting fraud, or the possibility that grounds for delisting have arisen
- A scheduled approval of a new drug, acquisition of a core technology patent, or government approval or licensing
- A plan for restructuring, a merger or division, or the sale of a subsidiary
In particular, because corporate investment attraction negotiation information is directly connected to the financing structure, changes in the governance structure, and expectations of an increase in corporate value, it is assessed as material information that may have a material effect on the stock price.
The significance of this judgment likewise lies in its reaffirmation that "even if the investment terms have not been finally determined, information may constitute material information where the likelihood of its realization is considerable and it has become concrete."
Acts of Using Material Undisclosed Information
An act of using material undisclosed information is not limited to "directly purchasing shares."
Article 174 of the Financial Investment Services and Capital Markets Act prohibits the following acts.
(2) Conveying information to another person so as to cause that person to trade shares or the like
(3) Knowingly acquiescing in or facilitating the use of information
The types that frequently arise in practice are as follows.
- A participant in investment attraction negotiations hinting to an acquaintance that "a big contract is coming soon"
- A company officer purchasing through an account in a family member's name before disclosure
- An outside advisor sharing negotiation information while recommending a purchase
- A recipient of material information re-conveying it through social media, group chats, and the like
- Indirect purchases using borrowed-name accounts or corporate accounts
The conduct at issue in this case likewise involved a structure in which a person who participated in corporate investment attraction negotiations conveyed information to acquaintances in a hobby club, and those acquaintances purchased intensively immediately before disclosure and sold immediately after disclosure.
The Supreme Court held that, even without a direct instruction to "buy" or "sell," the possibility of the use of information may be determined by considering, as a whole, the time the information was created, the circumstances of its conveyance, the trading pattern, and the method of financing.
4. Corporate Investment Attraction | Practical Points
In the case of an act of using material undisclosed information, the following disadvantages may follow.
Financial Investment Services and Capital Markets Act, Article 175 (Liability for Damages for Use of Material Undisclosed Information)
Financial Investment Services and Capital Markets Act, Article 429-2 (Penalty Surcharge for Unfair Trading Practices, etc.)
2. A person who has used material undisclosed information in violation of Article 174
Financial Investment Services and Capital Markets Act, Article 443 (Penal Provisions)
1. A person who, in violation of Article 174 (1), has used material undisclosed information related to the business, etc. of a listed corporation in trading or any other transaction of specified securities, etc., or has allowed another person to use it
Accordingly, it is important to pay attention to the following points when attracting corporate investment.
Category | Points at Issue in Corporate Investment Attraction Practice | Risk |
Scope of those involved in negotiations | Even an outside advisor, acquaintance, shareholder, or broker may be assessed as an "agent" upon substantial involvement | Expansion of the application of insider trading regulation |
Timing of the information | Material information may be established once it becomes concrete, even before final determination | Limits of a defense that "it was unknown because it was not yet determined" |
Form of conveyance | May be recognized through the circumstances of conveyance plus the trading pattern, even without a direct recommendation | Possibility of conviction even on circumstantial evidence |
Trading conduct | Intensive purchases immediately before disclosure, leverage, and rapid sales after disclosure | Reinforcement of the inference of the use of information |
Assistance from Daeryun Law Firm LLP
When you seek advance advice on corporate investment attraction from our firm, attorneys experienced in corporate matters and in financial matters work together to design a system for managing undisclosed information (access rights, recordkeeping, and communication rules), thereby preventing insider trading risks in advance.
In addition, where outside collaborators such as investors, brokers, and advisors are involved, we put in place training, pledges, and trading-restriction measures on the premise that they may be assessed as "agents," thereby preventing disputes and investigations.
Where a problem has already arisen, through collaboration with attorneys experienced in criminal matters and with the evidence examination center, we can reconstruct the facts with a focus on transaction records, lines of communication, and the time the information was created, and systematically support the response to the investigation and the defense strategy at the criminal trial.
If you need assistance with a related matter, you are welcome to make a 🔗legal consultation reservation with a corporate attorney.
Related Information
Explore legal information related to this case.
FDI Reporting | A Comprehensive Overview from the Subjects of Foreign Direct Investment Reporting to the Procedures and Required Documents
The Elements of Investment-Tip Fraud and the Level of Punishment for Operating a Coin Tip Room
Fractional Investment: Assessing Securities Status and Reviewing Corporate Legal Risks
Daeryun's Key Strengths

Litigation strategy using Daeryun's own AI & IT technology
More than 240 key members
1,200+ cases handled per month
* 2025년 월평균 기준
Complies with Korean Bar Association Advertising Regulations Article 4 (1)
more strengths
Book a legal
consultation with an attorney
All consultations are reviewed by a specialized attorney first,
so they are conducted by appointment only.
Phone consultation
1800-7905
Available 24 hours a day, 365 days a year


Online consultation
We provide tailored
legal services for our clients.

Chat consultation
KakaoTalk channel
Daeryun Law LLC Attorneys
Related Members
View more
SangSu JO
T. 070-5117-3709
Experience as Chief Prosecutor of the 5th Criminal Division of the Seoul Central District Prosecutors' Office and Deputy Chief Prosecutor of the Suncheon Branch of the Gwangju Prosecutors' Office
Related Practice Areas
View moreConsult in other languages
Popular Columns
View moreHow to Register a Quasi-Investment Advisory Business, and Points to Note When Providing Stock Tips

Copyright Infringement: Severity of Punishment, Damages, and Response Methods

The Meaning of Corporate Rehabilitation Proceedings, the Measures Involved, and Points Requiring Caution

The Effect of a Non-Disclosure Agreement, Liability for Breach, and Key Points to Know When Drafting One

Compliance Obligations Under the Fair Transactions in Franchise Business Act and Cases of Violation

Previous
Foreign Investment | Supreme Court Holds That Dividends Arising From Shares Acquired After a Reduction Decision Are Not Eligible for the Reduction
Next
Rights Offering to Existing Shareholders | The Refusal of the Transfer of Title and the Issuance of New Shares Were Not Unlawful Where the Inherited Shares Were in a State of Quasi-Co-Ownership
View listDo you have more questions?













