Rimini Street, Inc.
US ˙ NasdaqGM ˙ US76674Q1076

SecurityRMNI / Rimini Street, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership333,143 shares
Latest Disclosed Value $ 1,092,709
Morgan Stanley reports 14.88% decrease in ownership of RMNI / Rimini Street, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 333,143 shares of Rimini Street, Inc. (US:RMNI) valued at $1,092,709 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 391,369 shares of Rimini Street, Inc.. This represents a change in shares of -14.88% during the quarter. The current value of the position is $1,382,543 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 RIMINI STR INC DEL COM 76674Q107 333,143 -58,226 -14.88 1,093 -28.06 0.0001
2026-05-27 2025-12-31 13F/A-1 RIMINI STR INC DEL COM 76674Q107 391,369 -58,365 -12.98 1,519 -27.85 0.0001
2026-02-13 2025-12-31 13F RIMINI STR INC DEL COM 76674Q107 391,369 -58,365 1,519 0.0001
2026-05-27 2025-09-30 13F/A-1 RIMINI STR INC DEL COM 76674Q107 449,734 -423,345 -48.49 2,105 -36.07 0.0001
2025-11-14 2025-09-30 13F RIMINI STR INC DEL COM 76674Q107 449,734 -423,345 2,105 0.0001
2025-08-15 2025-06-30 13F RIMINI STR INC DEL COM 76674Q107 873,079 14,976 1.75 3,292 10.21 0.0002
2025-05-15 2025-03-31 13F RIMINI STR INC DEL COM 76674Q107 858,103 -80,972 -8.62 2,986 19.11 0.0002
2025-05-15 2024-12-31 13F/A-1 RIMINI STR INC DEL COM 76674Q107 939,075 74,025 8.56 2,507 56.69 0.0002
2025-02-14 2024-12-31 13F RIMINI STR INC DEL COM 76674Q107 939,075 74,025 2,507 0.0002
2025-05-14 2024-09-30 13F/A-2 RIMINI STR INC DEL COM 76674Q107 865,050 241,338 38.69 1,600 -16.41 0.0001
2025-02-14 2024-09-30 13F/A-1 RIMINI STR INC DEL COM 76674Q107 865,050 241,338 1,600 0.0001
2024-11-14 2024-09-30 13F RIMINI STR INC DEL COM 76674Q107 865,050 241,338 1,600 0.0000
2025-05-14 2024-06-30 13F/A-2 RIMINI STR INC DEL COM 76674Q107 623,712 51,270 8.96 1,915 2.57 0.0001
2024-10-17 2024-06-30 13F/A-1 RIMINI STR INC DEL COM 76674Q107 623,712 51,270 1,915 0.0001
2024-08-14 2024-06-30 13F RIMINI STR INC DEL COM 76674Q107 623,712 51,270 1,915 0.0001
2024-10-17 2024-03-31 13F/A-2 RIMINI STR INC DEL COM 76674Q107 572,442 -10,447 -1.79 1,866 -2.10 0.0001
2024-08-16 2024-03-31 13F/A-1 RIMINI STR INC DEL COM 76674Q107 572,442 -10,447 1,866 0.0000
2024-05-15 2024-03-31 13F RIMINI STR INC DEL COM 76674Q107 572,442 -10,447 1,866 0.0001
2024-08-16 2023-12-31 13F/A-1 RIMINI STR INC DEL COM 76674Q107 582,889 53,669 10.14 1,906 63.75 0.0002
2024-02-13 2023-12-31 13F RIMINI STR INC DEL COM 76674Q107 582,889 53,669 1,906 0.0002
2023-11-15 2023-09-30 13F RIMINI STR INC DEL COM 76674Q107 529,220 24,101 4.77 1,164 -51.88 0.0001
2023-08-14 2023-06-30 13F RIMINI STR INC DEL COM 76674Q107 505,119 72,629 16.79 2,420 35.82 0.0002
2023-05-15 2023-03-31 13F RIMINI STR INC DEL COM 76674Q107 432,490 -909,766 -67.78 1,782 -65.17 0.0002
2023-02-14 2022-12-31 13F RIMINI STR INC DEL COM 76674Q107 1,342,256 947,948 240.41 5,114 178.33 0.0006
2022-11-14 2022-09-30 13F RIMINI STR INC DEL COM 76674Q107 394,308 -21,491 -5.17 1,837 -26.52 0.0003
2022-10-27 2022-06-30 13F/A-1 RIMINI STR INC DEL COM 76674Q107 415,799 -33,222 -7.40 2,500 -3.99 0.0003
2022-08-15 2022-06-30 13F RIMINI STR INC DEL COM 76674Q107 415,799 -33,222 2,500 0.0003
2022-10-27 2022-03-31 13F/A-1 RIMINI STR INC DEL COM 76674Q107 449,021 19,012 4.42 2,604 1.40 0.0004
2022-05-13 2022-03-31 13F RIMINI STR INC DEL COM 76674Q107 449,021 19,012 2,604 0.0004
2022-02-14 2021-12-31 13F RIMINI STR INC DEL COM 76674Q107 430,009 -110,891 -20.50 2,568 -50.80 0.0003
2021-11-15 2021-09-30 13F RIMINI STR INC DEL COM 76674Q107 540,900 85,946 18.89 5,219 86.19 0.0007
2021-08-23 2021-06-30 13F/A-1 RIMINI STR INC DEL COM 76674Q107 454,954 83,585 22.51 2,803 -15.85 0.0004
2021-08-16 2021-06-30 13F RIMINI STR INC DEL COM 76674Q107 454,954 83,585 2,803 0.0001
2021-05-17 2021-03-31 13F RIMINI STR INC DEL COM 76674Q107 371,369 -59,437 -13.80 3,331 74.58 0.0005
2021-02-16 2020-12-31 13F RIMINI STR INC DEL COM 76674Q107 430,806 -13,798 -3.10 1,908 33.24 0.0003
2020-11-13 2020-09-30 13F RIMINI STR INC DEL COM 76674Q107 444,604 36,871 9.04 1,432 -31.81 0.0003
2020-08-14 2020-06-30 13F RIMINI STR INC DEL COM 76674Q107 407,733 17,733 4.55 2,100 31.66 0.0005
2020-05-26 2020-03-31 13F/A-1 RIMINI STR INC DEL COM 76674Q107 390,000 -44,720 -10.29 1,595 -5.45 0.0004
2020-05-15 2020-03-31 13F RIMINI STR INC DEL COM 76674Q107 390,000 -44,720 1,595 122.5293
2020-02-14 2019-12-31 13F RIMINI STR INC DEL COM 76674Q107 434,720 41,182 10.46 1,687 -2.15 0.0004
2019-11-14 2019-09-30 13F RIMINI STR INC DEL COM 76674Q107 393,538 39,270 11.08 1,724 -8.20 0.0005
2019-08-14 2019-06-30 13F RIMINI STR INC DEL COM 76674Q107 354,268 -152,587 -30.10 1,878 -25.92 0.0005
2019-05-15 2019-03-31 13F RIMINI STR INC DEL COM 76674Q107 506,855 -169,621 -25.07 2,535 -27.24 0.0007
2019-02-14 2018-12-31 13F RIMINI STR INC DEL COM 76674Q107 676,476 -56,945 -7.76 3,484 -24.70 0.0010
2019-04-23 2018-09-30 13F/A-2 RIMINI STR INC DEL COM 76674Q107 733,421 333,141 83.23 4,627 76.47 0.0012
2018-11-20 2018-09-30 13F/A-1 RIMINI STR INC DEL COM 76674Q107 733,421 0 4,627 0.0012
2018-11-14 2018-09-30 13F RIMINI STR INC DEL COM 76674Q107 733,421 4,627
2019-04-23 2018-06-30 13F/A-1 RIMINI STR INC DEL COM 76674Q107 400,280 24,149 6.42 2,622 -18.57 0.0007
2018-08-14 2018-06-30 13F RIMINI STR INC DEL COM 76674Q107 400,280 2,622
2019-04-23 2018-03-31 13F/A-1 RIMINI STR INC DEL COM 76674Q107 376,131 375,776 105,852.39 3,220 107,233.33 0.0009
2018-05-14 2018-03-31 13F RIMINI STR INC DEL COM 76674Q107 376,131 3,220
2019-04-23 2017-12-31 13F/A-1 RIMINI STR INC DEL COM 76674Q107 355 355 3 0.0000
2018-02-14 2017-12-31 13F RIMINI STR INC DEL COM 76674Q107 355 3
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.