# ARDSLEY ADVISORY PARTNERS LP

ARDSLEY ADVISORY PARTNERS LP of NORWALK, CT is an SEC-registered investment adviser.

## Registration

- CRD: 301116
- Type: SEC-registered investment adviser
- SEC file number: 801-114966
- Location: 105 ROWAYTON AVE., NORWALK, CT, 06853
- Phone: 203-564-4200
- Latest filing: 2026-05-06
- Regulatory AUM: $1.6B
- Discretionary AUM: $1.6B
- Clients: 11
- Accounts: 11

## Business model

- Compensation: % of AUM, Performance
- Clients served: Pooled vehicles, Investment cos

## Officers, owners & control persons (11)

| Name | Role | Location |
| --- | --- | --- |
| Philip Jay Hempleman | LIMITED PARTNER; MANAGING MEMBER | — |
| Kirk Daniel Balzer | LIMITED PARTNER | — |
| Steven Nicholas Napoli | LIMITED PARTNER, CHIEF FINANCIAL OFFICER, CHIEF COMPLIANCE OFFICER | — |
| Spencer Jay Hempleman | LIMITED PARTNER; MANAGING MEMBER | — |
| Benjamin Ian Block | LIMITED PARTNER | — |
| George Arthur Gorman | LIMITED PARTNER | — |
| BALZER KIRK DANIEL | LIMITED PARTNER | — |
| GORMAN GEORGE ARTHUR | LIMITED PARTNER | — |
| HEMPLEMAN PHILIP JAY | LIMITED PARTNER; MANAGING MEMBER | — |
| NAPOLI STEVEN NICHOLAS | LIMITED PARTNER, CHIEF FINANCIAL OFFICER, CHIEF COMPLIANCE OFFICER | — |
| BLOCK BENJAMIN IAN | LIMITED PARTNER | — |


## Private funds (6)

| Fund | Type | Formed | Owners | GAV | Min investment |
| --- | --- | --- | --- | --- | --- |
| ARDSLEY PARTNERS ADVANCED HEALTHCARE FUND, L.P. | Hedge Fund | Delaware | 4 | $332.4M | $1.0M |
| ARDSLEY SUSTAINABLE OPPORTUNITIES FUND, L.P. | Hedge Fund | Delaware | 35 | $309.6M | $1.0M |
| ARDSLEY WORLD INFORMATION TECHNOLOGY FUND, L.P. | Hedge Fund | Delaware | 8 | $108.5M | $1.0M |
| ARDSLEY PARTNERS FUND II, LP | Hedge Fund | Delaware | 11 | $54.3M | $1.0M |
| ARDSLEY DUCKDIVE FUND LP | Hedge Fund | Delaware | 6 | $25.6M | $1.0M |
| ARDSLEY WORLD INFORMATION TECHNOLOGY OFFSHORE FUND LTD. | Hedge Fund | Cayman Islands | 6 | $7.6M | $1.0M |


## Fund service providers (1)

- custodian: ARDSLEY WORLD INFORMATION TECHNOLOGY OFFSHORE FUND LTD.

## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/301116/brochure
- Similar advisers: https://search.stillhousedata.com/firm/301116/similar
- Related entities: https://search.stillhousedata.com/firm/301116/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/301116

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Source: public SEC Form ADV data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.