The RBB Fund, Inc. - Motley Fool Capital Efficiency 100 Index ETF
US ˙ BATS

SecurityTMFE / The RBB Fund, Inc. - Motley Fool Capital Efficiency 100 Index ETF
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership16,772 shares
Latest Disclosed Value $ 456,702
Citadel Advisors Llc reports 122.82% increase in ownership of TMFE / The RBB Fund, Inc. - Motley Fool Capital Efficiency 100 Index ETF

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 16,772 shares of The RBB Fund, Inc. - Motley Fool Capital Efficiency 100 Index ETF (US:TMFE) valued at $456,702 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 7,527 shares of The RBB Fund, Inc. - Motley Fool Capital Efficiency 100 Index ETF. This represents a change in shares of 122.82% during the quarter. The current value of the position is $492,423 USD.

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 RBB FD MOTLEY FOOL CAPI 74933W643 16,772 9,245 122.82 457 108.22 0.0001
2026-02-17 2025-12-31 13F RBB FD MOTLEY FOOL CAPI 74933W643 7,527 7,527 220 0.0000
2025-11-14 2025-09-30 13F RBB FD MOTLEY FOOL CAPI 74933W643 0 -100.00 0
2025-08-14 2025-06-30 13F RBB FD MOTLEY FOOL CAPI 74933W643 12,619 12,619 355 0.0001
2023-08-14 2023-06-30 13F RBB FD MOTLEY FOOL CAPI 74933W643 0 -22,743 -100.00 0 -100.00
2023-05-15 2023-03-31 13F RBB FD MOTLEY FOOL CAPI 74933W643 22,743 3,191 16.32 374 30.31 0.0001
2023-02-14 2022-12-31 13F RBB FD MOTLEY FOOL CAPI 74933W643 19,552 9,525 94.99 288 106.47 0.0001
2022-11-14 2022-09-30 13F RBB FD MOTLEY FOOL CAPI 74933W643 10,027 -385 -3.70 139 -8.55 0.0000
2022-08-15 2022-06-30 13F RBB FD MOTLEY FOOL CAPI 74933W643 10,412 10,412 152 0.0000
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.