里米尼街有限公司
US ˙ NasdaqGM ˙ US76674Q1076

SecurityRMNI / Rimini Street, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership2,536 shares
Latest Disclosed Value $ 8,318
Citigroup Inc ownership in RMNI / Rimini Street, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 2,536 shares of Rimini Street, Inc. (US:RMNI) valued at $8,318 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,592 shares of Rimini Street, Inc.. This represents a change in shares of 59.30% during the quarter. The current value of the position is $10,524 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (RMNI) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

RMNI / Rimini Street, Inc. Historical Put/Call Ratio
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)
2026-05-11 2026-03-31 13F RIMINI STR INC DEL COM 76674Q107 2,536 944 59.30 8 33.33 0.0000
2026-02-13 2025-12-31 13F RIMINI STR INC DEL COM 76674Q107 1,592 -1,214 -43.26 6 -53.85 0.0000
2025-11-10 2025-09-30 13F RIMINI STR INC DEL COM 76674Q107 2,806 -15,493 -84.67 13 -80.88 0.0000
2025-08-11 2025-06-30 13F RIMINI STR INC DEL COM 76674Q107 18,299 -20,468 -52.80 69 -49.25 0.0000
2025-05-12 2025-03-31 13F RIMINI STR INC DEL COM 76674Q107 38,767 -3,876 -9.09 135 18.58 0.0001
2025-02-12 2024-12-31 13F RIMINI STR INC DEL COM 76674Q107 42,643 3,011 7.60 114 54.79 0.0001
2024-11-12 2024-09-30 13F RIMINI STR INC DEL COM 76674Q107 39,632 24,570 163.13 73 58.70 0.0000
2024-08-12 2024-06-30 13F RIMINI STR INC DEL COM 76674Q107 15,062 3,402 29.18 46 21.05 0.0000
2024-05-10 2024-03-31 13F RIMINI STR INC DEL COM 76674Q107 11,660 3,294 39.37 38 40.74 0.0000
2024-02-09 2023-12-31 13F RIMINI STR INC DEL COM 76674Q107 8,366 8,210 5,262.82 27 0.0000
2023-12-06 2023-09-30 13F/A-1 RIMINI STR INC DEL COM 76674Q107 156 -15,729 -99.02 0 -100.00 0.0000
2023-11-09 2023-09-30 13F RIMINI STR INC DEL COM 76674Q107 156 -15,729 0 0.0000
2023-08-10 2023-06-30 13F RIMINI STR INC DEL COM 76674Q107 15,885 14,554 1,093.46 76 1,420.00 0.0000
2023-05-11 2023-03-31 13F RIMINI STR INC DEL COM 76674Q107 1,331 -311 -18.94 5 -16.67 0.0000
2023-02-09 2022-12-31 13F RIMINI STR INC DEL COM 76674Q107 1,642 -381 -18.83 6 -33.33 0.0000
2022-11-10 2022-09-30 13F RIMINI STR INC DEL COM 76674Q107 2,023 -2,413 -54.40 9 -66.67 0.0000
2022-08-10 2022-06-30 13F RIMINI STR INC DEL COM 76674Q107 4,436 1,725 63.63 27 68.75 0.0000
2022-05-12 2022-03-31 13F RIMINI STR INC DEL COM 76674Q107 2,711 -9,399 -77.61 16 -77.78 0.0000
2022-02-10 2021-12-31 13F RIMINI STR INC DEL COM 76674Q107 12,110 6,506 116.10 72 33.33 0.0000
2021-11-10 2021-09-30 13F RIMINI STR INC DEL COM 76674Q107 5,604 -9,331 -62.48 54 -41.30 0.0000
2021-08-10 2021-06-30 13F RIMINI STR INC DEL COM 76674Q107 14,935 13,190 755.87 92 475.00 0.0001
2021-05-13 2021-03-31 13F RIMINI STR INC DEL COM 76674Q107 1,745 -2,480 -58.70 16 -15.79 0.0000
2021-02-11 2020-12-31 13F RIMINI STR INC DEL COM 76674Q107 4,225 2,922 224.25 19 375.00 0.0000
2020-11-12 2020-09-30 13F RIMINI STR INC DEL COM 76674Q107 1,303 -1,674 -56.23 4 -73.33 0.0000
2020-08-12 2020-06-30 13F RIMINI STR INC DEL COM 76674Q107 2,977 -2,883 -49.20 15 -37.50 0.0000
2020-05-12 2020-03-31 13F RIMINI STR INC DEL COM 76674Q107 5,860 1,515 34.87 24 41.18 0.0000
2020-02-12 2019-12-31 13F RIMINI STR INC DEL COM 76674Q107 4,345 2,673 159.87 17 142.86 0.0000
2019-11-08 2019-09-30 13F RIMINI STR INC DEL COM 76674Q107 1,672 -3,853 -69.74 7 -75.86 0.0000
2019-08-12 2019-06-30 13F RIMINI STR INC DEL COM 76674Q107 5,525 2,687 94.68 29 107.14 0.0000
2019-05-13 2019-03-31 13F RIMINI STR INC DEL COM 76674Q107 2,838 119 4.38 14 0.00 0.0000
2019-02-12 2018-12-31 13F RIMINI STR INC DEL COM 76674Q107 2,719 35 1.30 14 -17.65 0.0000
2018-11-13 2018-09-30 13F RIMINI STR INC DEL COM 76674Q107 2,684 1,013 60.62 17 54.55 0.0000
2018-08-10 2018-06-30 13F RIMINI STR INC DEL COM 76674Q107 1,671 1,671 11 0.0000
2018-05-11 2018-03-31 13F RIMINI STR INC DEL COM 76674Q107 0 -239,937 -100.00 0 -100.00
2018-02-12 2017-12-31 13F RIMINI STR INC DEL COM 76674Q107 239,937 239,637 79,879.00 1,898 -19.98 0.0015
2017-08-11 2017-06-30 13F GP INVTS ACQUISITION COR UNIT 99/99/9999 G40357116 300 -200 -40.00 0 0.0000
2017-05-12 2017-03-31 13F GP INVTS ACQUISITION COR UNIT 99/99/9999 G40357116 500 200 66.67 0 0.0000
2017-02-10 2016-12-31 13F GP INVTS ACQUISITION COR UNIT 99/99/9999 G40357116 300 0 0.00 0 -100.00
2016-11-10 2016-09-30 13F GP INVTS ACQUISITION COR UNIT 99/99/9999 G40357116 300 300 3 0.0000
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2017-08-11 2017-06-30 13F GP INVTS ACQUISITION COR *W EXP 05/19/202 Call 0 -100.00 0 n/a n/a n/a
2017-05-12 2017-03-31 13F GP INVTS ACQUISITION COR *W EXP 05/19/202 Call 600 500.00 0 n/a n/a n/a
2017-02-10 2016-12-31 13F GP INVTS ACQUISITION COR *W EXP 05/19/202 Call 100 0 n/a n/a n/a
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.