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ARDSLEY PARTNERS

NORWALK, CT · CRD 301116 · IAPD ↗ · ardsley.com · 203-564-4200

$1.64BRegulatory AUM
7Advisory reps
11Employees
1Clients
n/aPlanning clients
6Private funds
1States
0Disclosures
fundSegment
ApprovedSEC status

Filing changes

40
March 2026 — ARDSLEY PARTNERS shrank from 9 to 7 advisory reps.
Advisory representative count fell materially — advisors are moving, or the firm is shrinking.
Recruiting & transitionsM&A & valuation
53
March 2026 — ARDSLEY PARTNERS reported RAUM up 43% ($1.14B -> $1.64B).
Regulatory AUM up >=25% since last filing.
Portfolio / reporting / TAMPCRMFinancial planning software
35
June 2025 — ARDSLEY PARTNERS moved its main office from ROWAYTON, CT to NORWALK, CT.
Main office moved to a different city or state.
Office IT & facilitiesMarketing & brand
35
April 2025 — ARDSLEY PARTNERS moved its main office from STAMFORD, CT to ROWAYTON, CT.
Main office moved to a different city or state.
Office IT & facilitiesMarketing & brand
70
April 2025 — ARDSLEY PARTNERS crossed $1B in regulatory AUM ($869.6M -> $1.14B).
Regulatory AUM crossed $1B. Large-adviser status changes what they need and can afford.
Portfolio / reporting / TAMPCustodianComplianceIntegration & migration consulting

Data: SEC Form ADV monthly roster (public). Confirm on IAPD before acting.