Simulations Plus is a medical - healthcare information services company in the healthcare sector on NASDAQ, led by Shawn O'Connor, with a market cap of $386.2M. As of Q3 2025, 80% of shares are held by 167 institutional investors, with MORGAN STANLEY as the largest holder at 6.45%.
Overview of institutional ownership in SLP as of Q3 2025 with a market cap of $303.3M
Based on market cap of $303.3M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Institutions with the largest positions in SLP as of Q3 2025
| Institution | Position Value |
|---|---|
MORGAN STANLEY RIA/Wealth | $19.6M 0.00% of portfolio |
B BlackRock, Inc. Institution | $18.5M 0.00% of portfolio |
Tributary Capital Management, LLC Long Only Manager | $17.1M 0.81% of portfolio |
VANGUARD GROUP INC Institution | $14.7M 0.00% of portfolio |
First Light Asset Management, LLC Hedge Fund•Sector | $11.6M 1.09% of portfolio |
Rockefeller Capital Management L.P. Long Only Manager | $11.2M 0.02% of portfolio |
AMERIPRISE FINANCIAL INC Institution | $10.9M 0.00% of portfolio |
DIMENSIONAL FUND ADVISORS LP Long Only Manager | $6.2M 0.00% of portfolio |
STATE STREET CORP Institution | $6.0M 0.00% of portfolio |
GEODE CAPITAL MANAGEMENT LLC ETF Provider | $5.9M 0.00% of portfolio |
Institutional buying and selling activity for SLP in Q3 2025
| Institution | Net Bought |
|---|---|
Tributary Capital Management, LLC Long Only Manager | +$11.7M +775.7K shares |
MORGAN STANLEY RIA/Wealth | +$7.5M +495.8K shares |
First Light Asset Management, LLC Hedge Fund•Sector | +$6.2M +410.6K shares |
Rockefeller Capital Management L.P. Long Only Manager | +$5.5M +366.8K shares |
Sio Capital Management, LLC Hedge Fund•Long/Short | +$4.8M +320.3K shares |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | +$3.4M +226.7K shares |
D D. E. Shaw & Co., Inc. Institution | +$3.3M +217.8K shares |
H Herald Investment Management Ltd Institution | +$3.0M +200.0K shares |
S Squarepoint Ops LLC Hedge Fund•Quant | +$2.8M +184.7K shares |
J JANE STREET GROUP, LLC Institution | +$2.6M +171.0K shares |
| Institution | Net Sold |
|---|---|
Conestoga Capital Advisors, LLC Long Only Manager | −$22.4M −1.3M shares |
B BlackRock, Inc. Institution | −$19.2M −1.3M shares |
HENDERSON GROUP PLC Institution | −$14.2M −813.2K shares |
Ranger Investment Management, L.P. Long Only Manager | −$6.7M −386.2K shares |
DEERFIELD MANAGEMENT CO /NY Hedge Fund•Long/Short | −$6.2M −354.1K shares |
STATE STREET CORP Institution | −$4.1M −275.2K shares |
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | −$3.8M −248.9K shares |
VANGUARD GROUP INC Institution | −$3.0M −201.5K shares |
S STATE TREASURER STATE OF MICHIGAN Institution | −$2.4M −139.5K shares |
AMERIPRISE FINANCIAL INC Institution | −$2.3M −153.1K shares |
Institutions that initiated new positions or completely exited SLP in Q3 2025
| Institution | Position Value |
|---|---|
Sio Capital Management, LLC Hedge Fund•Long/Short | $4.8M 320.3K shares |
H Herald Investment Management Ltd Institution | $3.0M 200.0K shares |
PDT Partners, LLC Hedge Fund•Quant | $967.7K 64.2K shares |
Numerai GP LLC Hedge Fund•Quant | $833.5K 55.3K shares |
Weiss Asset Management LP Hedge Fund•Multi-Strategy | $709.3K 47.1K shares |
Susquehanna Portfolio Strategies, LLC Private Equity | $702.5K 46.6K shares |
B Brevan Howard Capital Management LP Institution | $522.1K 34.6K shares |
F First Eagle Investment Management, LLC Long Only Manager | $344.8K 22.9K shares |
P Point72 Asia Pte. Ltd. Institution | $245.1K 16.3K shares |
Schonfeld Strategic Advisors LLC Hedge Fund•Multi-Strategy | $173.0K 11.5K shares |
| Institution | Previous Position |
|---|---|
Conestoga Capital Advisors, LLC Long Only Manager | $22.4M 1.3M shares |
HENDERSON GROUP PLC Institution | $14.2M 813.2K shares |
Ranger Investment Management, L.P. Long Only Manager | $6.7M 386.2K shares |
DEERFIELD MANAGEMENT CO /NY Hedge Fund•Long/Short | $6.2M 354.1K shares |
S STATE TREASURER STATE OF MICHIGAN Institution | $2.4M 139.5K shares |
STEPHENS INC /AR/ RIA/Wealth | $1.7M 99.3K shares |
WELLINGTON MANAGEMENT CO LLP Long Only Manager | $1.7M 98.2K shares |
GOLUB GROUP LLC RIA/Wealth | $1.5M 85.5K shares |
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager | $978.0K 56.0K shares |
P PUBLIC SECTOR PENSION INVESTMENT BOARD Institution | $966.8K 55.4K shares |
Institutions with the largest Call and Put options positions in SLP as of Q3 2025
| Institution | Position Value |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $577.2K 383.0 contracts |
| Institution | Position Value |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $227.6K 151.0 contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $189.9K 126.0 contracts |
Institutions with SLP as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
K Kopion Asset Management, LLC RIA/Wealth | 1.81% $2.8M |
Sio Capital Management, LLC Hedge Fund•Long/Short | 1.22% $4.8M |
First Light Asset Management, LLC Hedge Fund•Sector | 1.09% $11.6M |
Tributary Capital Management, LLC Long Only Manager | 0.81% $17.1M |
Values First Advisors, Inc. RIA/Wealth | 0.46% $850.8K |
H Herald Investment Management Ltd Institution | 0.40% $3.0M |
Connective Capital Management, LLC Hedge Fund•Long/Short | 0.35% $380.4K |
Illumine Investment Management, LLC RIA/Wealth | 0.34% $473.3K |
North Star Investment Management Corp. RIA/Wealth | 0.16% $2.5M |
Navalign, LLC RIA/Wealth | 0.14% $527.5K |
Discover hedge funds investing in SLP

| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
ETF ETF | $39.0M | 2.54% | |
ETF ETF | $6.5M | 0.42% | |
ETF ETF | $6.5M | 0.42% |
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