![Aya Weissman](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>)
Aya Weissman
Director/Board Member at
NIPPON ACTIVE VALUE FUND PLC
Net worth: 154 071 $ as of 2026-08-30
Profile
Ayako Hirota Weissman was the founder of As Hirota Asset Management LLC, founded in 2006, where the title held was Chief Investment Officer from 2006 to 2010.
Ms. Weissman is also the founder of Kingdon Capital Management LLC.
Current jobs include Independent Non-Executive Director at Nippon Active Value Fund Plc since 2019; Senior Portfolio Manager & Director-Asia Strategy at Horizon Kinetics LLC since 2010; Member at U.S.-Japan Council; and Senior Portfolio Manager at Horizon Kinetics Asset Management LLC since 2019.
Former jobs include Managing Director at Smith Barney Asset Management; Independent Outside Director at SBI Holdings, Inc. from 2015 to 2019; Independent Director at Toshiba Corp.
from 2019 to 2023; Senior Portfolio Manager at Kinetics Asset Management LLC from 2010 to 2019; and Securities Analyst at Equitable Capital Management Corp.
Education includes an MBA from International Institute for Management Development in 1983 and an undergraduate degree from International Christian University in 1981.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-06-29 | 50,000 ( 0.03% ) | 154 071 $ | 2026-08-30 |
Aya Weissman active positions
| Companies | Position | Start |
|---|---|---|
| NIPPON ACTIVE VALUE FUND PLC | Director/Board Member | 2019-11-13 |
Horizon Kinetics Asset Management LLC
 Horizon Kinetics Asset Management LLC Investment ManagersFinance HKAM is a contrarian (fact-based) investor. The firm conducts their own proprietary in-house research consisting primarily of qualitative and quantitative, bottom-up, value-oriented analysis of a wide universe of companies operating in the US and abroad. | Portfolio Manager-Equities | 2010-10-31 |
Horizon Kinetics LLC
 Horizon Kinetics LLC Investment ManagersFinance Provides investment management company | Corporate Officer/Principal | 2010-10-31 |
U.S.-Japan Council
 U.S.-Japan Council Internet Software/ServicesTechnology Services Operates as a platform for events, news and media | Corporate Officer/Principal | - |
Former positions of Aya Weissman
| Companies | Position | End |
|---|---|---|
| TOSHIBA | Director/Board Member | 2023-11-30 |
| SBI HOLDINGS, INC. | Director/Board Member | 2019-06-26 |
Kinetics Asset Management LLC
 Kinetics Asset Management LLC Investment ManagersFinance Kinetics Asset Management, along with their affiliates, conducts their own proprietary in-house research consisting primarily of a qualitative and quantitative, bottom-up, value-oriented analysis of a wide universe of companies operating in the US and abroad. Kinetics manages accounts primarily by investing, trading and dealing in public securities of all kinds and descriptions, including, but not limited to, equity, debt, convertible securities, bank loans, preferred stock, options, warrants, trade claims, and monetary instruments. On behalf of their clients, Kinetics may also invest in arbitrage and special situations, both long and short securities positions, option arbitrage, international arbitrage, and other strategies. | Portfolio Manager-Equities | 2019-03-31 |
As Hirota Asset Management LLC | Founder | 2010-09-30 |
Equitable Capital Management Corp.
 Equitable Capital Management Corp. Financial ConglomeratesFinance Provides investment services | Corporate Officer/Principal | - |
Training of Aya Weissman
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
49
1st degree connections
13
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 13 |
|---|---|
Kingdon Capital Management LLC
 Kingdon Capital Management LLC Investment ManagersFinance Kingdon aims to achieve attractive risk-adjusted returns across all market cycles. The firm adheres to research driven process, investing across geographies, industries and asset classes to find the best use of capital. They offer two investment strategies: a global long/short equity strategy (Flagship Strategy) and a global long/short healthcare strategy (Healthcare Strategy). The Flagship Strategy consists of thematic, idiosyncratic and opportunistic investments with diversified return drivers and an emphasis on liquidity. The Healthcare Strategy primarily invests in the global healthcare industry. | Finance |
Horizon Kinetics Asset Management LLC
Horizon Kinetics Asset Management LLC Investment ManagersFinance HKAM is a contrarian (fact-based) investor. The firm conducts their own proprietary in-house research consisting primarily of qualitative and quantitative, bottom-up, value-oriented analysis of a wide universe of companies operating in the US and abroad. | Finance |
Kinetics Asset Management LLC
Kinetics Asset Management LLC Investment ManagersFinance Kinetics Asset Management, along with their affiliates, conducts their own proprietary in-house research consisting primarily of a qualitative and quantitative, bottom-up, value-oriented analysis of a wide universe of companies operating in the US and abroad. Kinetics manages accounts primarily by investing, trading and dealing in public securities of all kinds and descriptions, including, but not limited to, equity, debt, convertible securities, bank loans, preferred stock, options, warrants, trade claims, and monetary instruments. On behalf of their clients, Kinetics may also invest in arbitrage and special situations, both long and short securities positions, option arbitrage, international arbitrage, and other strategies. | Finance |
Smith Barney Asset Management
 Smith Barney Asset Management Investment ManagersFinance Provides investment services | Finance |
TOSHIBA Corp.
 TOSHIBA Corp. SemiconductorsElectronic Technology Designs, manufactures and supplies semiconductors, refrigeration equipment, energy products & electronic components | Electronic Technology |
SBI Holdings, Inc.
 SBI Holdings, Inc. Financial ConglomeratesFinance Provides securities brokerage, asset management and bio-related services | Finance |
International Institute for Management Development
 International Institute for Management Development Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
International Christian University
 International Christian University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Equitable Capital Management Corp.
Equitable Capital Management Corp. Financial ConglomeratesFinance Provides investment services | Finance |
Horizon Kinetics LLC
Horizon Kinetics LLC Investment ManagersFinance Provides investment management company | Finance |
U.S.-Japan Council
U.S.-Japan Council Internet Software/ServicesTechnology Services Operates as a platform for events, news and media | Technology Services |
Nippon Active Value Fund Plc
 Nippon Active Value Fund Plc Investment Trusts/Mutual FundsMiscellaneous Functions as a closed-end investment fund or Investment trust | Miscellaneous |
As Hirota Asset Management LLC |
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