![Neil Gagnon](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Neil Gagnon
Chief Executive Officer at
Gagnon Securities LLC
Net worth: 26 M $ as of 30/09/2026
Profile
Mr. Neil J.
Gagnon is a Managing Member & Portfolio Manager at Gagnon Advisors LLC and a Managing Partner & Portfolio Manager at Gagnon Securities LLC.
He was previously a Senior Partner at Gilder, Gagnon, Howe & Co. for over twenty-five years, after joining the firm in 1974 as an analyst and portfolio manager.
Prior to this, he was an early partner at Hambrecht & Quist, a West Coast investment banking firm.
He began his career as a research analyst at Mutual Benefit Life Insurance Company and then moved to Argus Research.
He has a BS in Engineering Physics from Pratt Institute and an MBA in Economics from New York University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
CareDx, Inc.
 CareDx, Inc. Medical SpecialtiesHealth Technology Manufactures diagnostic test kits and provides related testing services 0.29% | 31/07/2026 | 149,317 ( 0.29% ) | 10 M $ | 30/09/2026 |
Navigator Holdings Ltd.
 Navigator Holdings Ltd. Marine ShippingTransportation Owns and operates handysize liquefied gas carriers 0.61% | 12/03/2026 | 375,883 ( 0.61% ) | 9 M $ | 30/09/2026 |
Ameresco, Inc.
 Ameresco, Inc. Engineering & ConstructionIndustrial Services Provides energy utility services and management solutions 0.44% | 20/08/2026 | 153,541 ( 0.44% ) | 3 M $ | 30/09/2026 |
Treace Medical Concepts, Inc.
 Treace Medical Concepts, Inc. Medical SpecialtiesHealth Technology Manufactures and sells orthopedic medical devices 0.65% | 23/03/2026 | 420,406 ( 0.65% ) | 2 M $ | 30/09/2026 |
OraSure Technologies, Inc.
 OraSure Technologies, Inc. Medical SpecialtiesHealth Technology Develops, manufactures, markets and sells oral fluid specimen collection devices 0.55% | 15/04/2026 | 381,594 ( 0.55% ) | 1 M $ | 30/09/2026 |
CNFinance Holdings Ltd.
 CNFinance Holdings Ltd. Finance/Rental/LeasingFinance Operates as a holding company through its subsidiaries provides home equity loan services 0.61% | 31/03/2026 | 8,408,800 ( 0.61% ) | 819 858 $ | 30/09/2026 |
Kaltura, Inc.
 Kaltura, Inc. Packaged SoftwareTechnology Services Operates as a cloud video platform 0.33% | 04/08/2026 | 496,327 ( 0.33% ) | 635 299 $ | 30/09/2026 |
Neil Gagnon active positions
| Companies | Position | Start |
|---|---|---|
Gagnon Securities LLC
 Gagnon Securities LLC Investment ManagersFinance Gagnon Securities takes a research intensive, generalist approach to evaluating investments. Their stocks selection process is based on proprietary in-house research. The firm employs a fundamental approach that seeks to identify and invest in companies that represent under-appreciated value. | Chief Executive Officer | 01/01/2000 |
Gagnon Advisors LLC
 Gagnon Advisors LLC Investment ManagersFinance Gagnon Advisors focuses on equity investing and manage money for clients in discretionary accounts on both a long only and a hedged basis. The firm takes a research-intensive, generalist approach to evaluating investments that produces long-term success. They employ a fundamental approach that seeks to identify and invest in companies that represent under-appreciated value. | Chief Executive Officer | 01/01/2000 |
Former positions of Neil Gagnon
| Companies | Position | End |
|---|---|---|
Gilder, Gagnon, Howe & Co. LLC
 Gilder, Gagnon, Howe & Co. LLC Investment ManagersFinance GGHC seeks to grow their clients’ capital through active and aggressive trading in securities that have the potential for high returns over the long-term. The firm focuses on stocks, with a minor emphasis on options and bonds, and occasionally purchases exchange-traded funds (ETFs). They take a general research-intensive approach in identifying potential investment opportunities, combining various methods of securities analysis as part of the due diligence process. | Corporate Officer/Principal | - |
Argus Research Co.
 Argus Research Co. Investment ManagersFinance Provides investment research | Corporate Officer/Principal | - |
Tekla Capital Management LLC
 Tekla Capital Management LLC Investment ManagersFinance Tekla primarily focuses on healthcare investing. Their funds invest in public and private growth equities in the healthcare and life sciences industries. | Corporate Officer/Principal | - |
Mutual Benefit Life Insurance Co.
 Mutual Benefit Life Insurance Co. Life/Health InsuranceFinance Provides life insurance services | Corporate Officer/Principal | - |
Education of Neil Gagnon
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
17
1st degree connections
8
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 8 |
|---|---|
Gilder, Gagnon, Howe & Co. LLC
Gilder, Gagnon, Howe & Co. LLC Investment ManagersFinance GGHC seeks to grow their clients’ capital through active and aggressive trading in securities that have the potential for high returns over the long-term. The firm focuses on stocks, with a minor emphasis on options and bonds, and occasionally purchases exchange-traded funds (ETFs). They take a general research-intensive approach in identifying potential investment opportunities, combining various methods of securities analysis as part of the due diligence process. | Finance |
Gagnon Securities LLC
Gagnon Securities LLC Investment ManagersFinance Gagnon Securities takes a research intensive, generalist approach to evaluating investments. Their stocks selection process is based on proprietary in-house research. The firm employs a fundamental approach that seeks to identify and invest in companies that represent under-appreciated value. | Finance |
Gagnon Advisors LLC
Gagnon Advisors LLC Investment ManagersFinance Gagnon Advisors focuses on equity investing and manage money for clients in discretionary accounts on both a long only and a hedged basis. The firm takes a research-intensive, generalist approach to evaluating investments that produces long-term success. They employ a fundamental approach that seeks to identify and invest in companies that represent under-appreciated value. | Finance |
Tekla Capital Management LLC
Tekla Capital Management LLC Investment ManagersFinance Tekla primarily focuses on healthcare investing. Their funds invest in public and private growth equities in the healthcare and life sciences industries. | Finance |
Argus Research Co.
Argus Research Co. Investment ManagersFinance Provides investment research | Finance |
New York University
 New York University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Pratt Institute
 Pratt Institute Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Mutual Benefit Life Insurance Co.
Mutual Benefit Life Insurance Co. Life/Health InsuranceFinance Provides life insurance services | Finance |
- Stock Market
- Insiders
- Neil Gagnon
