StepStone Group Inc.
MX ˙ BMV ˙ US85914M1071
SecurityMX:STEP / StepStone Group Inc.
InstitutionBamco Inc /ny/
Latest Disclosed Ownership830,574 shares
Latest Disclosed Value $ 39,634,991
Bamco Inc /ny/ reports 13.69% increase in ownership of STEP / StepStone Group Inc.

On May 15, 2026 - Bamco Inc /ny/ filed a 13F-HR form disclosing ownership of 830,574 shares of StepStone Group Inc. (MX:STEP) valued at $39,634,991 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 730,557 shares of StepStone Group Inc.. This represents a change in shares of 13.69% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F STEPSTONE GROUP COM CL A 85914M107 830,574 100,017 13.69 39,635 -15.45 0.1196
2026-02-17 2025-12-31 13F STEPSTONE GROUP COM CL A 85914M107 730,557 132,267 22.11 46,880 19.97 0.1270
2025-11-14 2025-09-30 13F STEPSTONE GROUP COM CL A 85914M107 598,290 457,775 325.78 39,074 401.08 0.1036
2025-08-14 2025-06-30 13F STEPSTONE GROUP COM CL A 85914M107 140,515 0 0.00 7,799 6.25 0.0211
2025-05-15 2025-03-31 13F STEPSTONE GROUP COM CL A 85914M107 140,515 0 0.00 7,339 -9.76 0.0216
2025-02-14 2024-12-31 13F STEPSTONE GROUP COM CL A 85914M107 140,515 -25,188 -15.20 8,133 -13.63 0.0210
2024-11-14 2024-09-30 13F STEPSTONE GROUP COM CL A 85914M107 165,703 0 0.00 9,417 23.83 0.0250
2024-08-14 2024-06-30 13F STEPSTONE GROUP COM CL A 85914M107 165,703 0 0.00 7,604 28.40 0.0218
2024-05-15 2024-03-31 13F STEPSTONE GROUP COM CL A 85914M107 165,703 0 0.00 5,922 12.29 0.0158
2024-02-14 2023-12-31 13F STEPSTONE GROUP COM CL A 85914M107 165,703 22,954 16.08 5,274 16.99 0.0140
2023-11-14 2023-09-30 13F STEPSTONE GROUP COM CL A 85914M107 142,749 29,717 26.29 4,508 60.77 0.0131
2023-08-14 2023-06-30 13F STEPSTONE GROUP COM CL A 85914M107 113,032 33,332 41.82 2,804 44.98 0.0078
2023-05-15 2023-03-31 13F STEPSTONE GROUP COM CL A 85914M107 79,700 79,700 1,934 0.0058
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.