# STEPSTONE GROUP INC COM CL A

STEPSTONE GROUP INC COM CL A is a security (CUSIP 85914M107) tracked across SEC portfolio filings. 278 institutional managers reported $3.8B on Form 13F as of 2026-06-30; 27 registered fund positions totaling $473.8M via N-PORT as of 2026-05-31.

## Summary

- Issuer: STEPSTONE GROUP INC
- Class: COM CL A
- CUSIP: 85914M107
- Asset category: EC
- 13F holders: 278
- 13F value: $3.8B
- 13F period: 2026-06-30
- N-PORT fund positions: 27
- N-PORT value: $473.8M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 278 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $542.2M | 8,449,878 |
| BlackRock, Inc. | New York, NY | $495.2M | 11,972,263 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $342.3M | 7,173,424 |
| [Pitcairn Wealth Advisors LLC](https://search.stillhousedata.com/firm/333260) | CONSHOHOCKEN, PA | $259.3M | 4,040,795 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $250.1M | 5,240,073 |
| Capital World Investors | LOS ANGELES, CA | $156.1M | 3,271,525 |
| STATE STREET CORP | BOSTON, MA | $129.0M | 3,117,991 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $98.2M | 1,964,827 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $93.1M | 1,951,359 |
| [WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC](https://search.stillhousedata.com/firm/173961) | CHICAGO, IL | $91.4M | 1,914,477 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $68.8M | 1,479,884 |
| [Balyasny Asset Management L.P.](https://search.stillhousedata.com/firm/138111) | Chicago, IL | $68.0M | 1,425,899 |
| [ADAGE CAPITAL PARTNERS GP, L.L.C.](https://search.stillhousedata.com/firm/160679) | Boston, MA | $63.1M | 1,323,243 |
| CIBC Private Wealth Group, LLC | ATLANTA, GA | $57.7M | 899,550 |
| [WESTFIELD CAPITAL MANAGEMENT CO LP](https://search.stillhousedata.com/firm/146990) | BOSTON, MA | $56.2M | 1,177,971 |

## Top fund holders (N-PORT)

_Showing 15 of 27 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [SMALLCAP World Fund Inc](https://search.stillhousedata.com/fund/S000009599) | SMALLCAP World Fund Inc | $170.0M | 20.98% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $101.0M | 46.41% |
| [T. Rowe Price Mid-Cap Value Fund, Inc.](https://search.stillhousedata.com/fund/S000002103) | T. ROWE PRICE MID-CAP VALUE FUND, INC. | $76.6M | 51.84% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $39.3M | 4.82% |
| [T. Rowe Price New Horizons Fund, Inc.](https://search.stillhousedata.com/fund/S000002106) | T. ROWE PRICE NEW HORIZONS FUND, INC. | $23.7M | 18.56% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $17.7M | 10.08% |
| CAZ GP Stakes Fund | Caz GP Stakes Fund | $6.3M | 420.63% |
| Liberty All-Star Growth Fund | LIBERTY ALL STAR GROWTH FUND INC. | $6.0M | 177.70% |
| [HARTFORD SMALL CAP GROWTH HLS FUND](https://search.stillhousedata.com/fund/S000004108) | HARTFORD HLS SERIES FUND II INC | $5.7M | 73.66% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $5.5M | 11.31% |
| [American Funds U.S. Small & Mid Cap Equity Fund](https://search.stillhousedata.com/fund/S000087820) | American Funds U.S. Small & Mid Cap Equity Fund | $4.8M | 69.58% |
| [T. Rowe Price Financial Services Fund, Inc.](https://search.stillhousedata.com/fund/S000002084) | T. ROWE PRICE FINANCIAL SERVICES FUND, INC. | $4.5M | 26.02% |
| [T. Rowe Price Diversified Mid-Cap Growth Fund, Inc.](https://search.stillhousedata.com/fund/S000002073) | T. ROWE PRICE DIVERSIFIED MID-CAP GROWTH FUND, INC. | $3.0M | 7.04% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $2.2M | 0.37% |
| [BNY Mellon Smallcap Stock Index Fund](https://search.stillhousedata.com/fund/S000000132) | BNY MELLON INDEX FUNDS, INC. | $1.9M | 22.94% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/85914M107.md)
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Source: public SEC filing 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.