The RBB Fund, Inc. - F/m US Treasury 6 Month Bill ETF
US ˙ NasdaqGM ˙ US74933W4603

SecurityXBIL / The RBB Fund, Inc. - F/m US Treasury 6 Month Bill ETF
InstitutionMoors & Cabot, Inc.
Latest Disclosed Ownership253,403 shares
Latest Disclosed Value $ 12,677,752
Moors & Cabot, Inc. reports 45.92% increase in ownership of XBIL / The RBB Fund, Inc. - F/m US Treasury 6 Month Bill ETF

On May 8, 2026 - Moors & Cabot, Inc. filed a 13F-HR form disclosing ownership of 253,403 shares of The RBB Fund, Inc. - F/m US Treasury 6 Month Bill ETF (US:XBIL) valued at $12,677,752 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 173,659 shares of The RBB Fund, Inc. - F/m US Treasury 6 Month Bill ETF. This represents a change in shares of 45.92% during the quarter. The current value of the position is $12,682,820 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)
2026-05-08 2026-03-31 13F RBB FD US TRSRY 6 MNTH 74933W460 253,403 79,744 45.92 12,678 45.80 0.5427
2026-02-10 2025-12-31 13F RBB FD US TRSRY 6 MNTH 74933W460 173,659 116 0.07 8,695 -0.17 0.3722
2025-11-14 2025-09-30 13F RBB FD US TRSRY 6 MNTH 74933W460 173,543 15,125 9.55 8,711 9.64 0.3801
2025-08-06 2025-06-30 13F RBB FD US TRSRY 6 MNTH 74933W460 158,418 60,423 61.66 7,945 61.59 0.3692
2025-05-08 2025-03-31 13F RBB FD US TRSRY 6 MNTH 74933W460 97,995 8,719 9.77 4,916 10.08 0.2494
2025-02-07 2024-12-31 13F RBB FD US TRSRY 6 MNTH 74933W460 89,276 30,905 52.95 4,467 52.42 0.2123
2024-11-08 2024-09-30 13F RBB FD US TRSRY 6 MNTH 74933W460 58,371 58,371 2,930 0.1455
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.