리서치 솔루션, Inc.
US ˙ NasdaqCM ˙ US7610251057

SecurityRSSS / Research Solutions, Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership176,900 shares
Latest Disclosed Value $ 399,794
Renaissance Technologies Llc reports 18.93% decrease in ownership of RSSS / Research Solutions, Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 176,900 shares of Research Solutions, Inc. (US:RSSS) valued at $399,794 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 218,200 shares of Research Solutions, Inc.. This represents a change in shares of -18.93% during the quarter. The current value of the position is $398,025 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)
2026-05-14 2026-03-31 13F RESEARCH SOLUTIONS COM 761025105 176,900 -41,300 -18.93 400 -37.75 0.0006
2026-02-12 2025-12-31 13F RESEARCH SOLUTIONS COM 761025105 218,200 11,756 5.69 642 -16.75 0.0010
2025-11-13 2025-09-30 13F RESEARCH SOLUTIONS COM 761025105 206,444 -1,386 -0.67 770 29.19 0.0010
2025-08-13 2025-06-30 13F RESEARCH SOLUTIONS COM 761025105 207,830 -647 -0.31 596 9.96 0.0008
2025-05-14 2025-03-31 13F RESEARCH SOLUTIONS COM 761025105 208,477 -12,423 -5.62 542 -40.83 0.0008
2025-02-13 2024-12-31 13F RESEARCH SOLUTIONS COM 761025105 220,900 97,154 78.51 917 171.81 0.0014
2024-11-13 2024-09-30 13F RESEARCH SOLUTIONS COM 761025105 123,746 6,646 5.68 338 13.09 0.0005
2024-08-09 2024-06-30 13F RESEARCH SOLUTIONS COM 761025105 117,100 13,089 12.58 299 0.0005
2024-05-13 2024-03-31 13F RESEARCH SOLUTIONS COM 761025105 104,011 26,511 34.21 0 0.0005
2024-02-13 2023-12-31 13F RESEARCH SOLUTIONS COM 761025105 77,500 4,600 6.31 0 0.0003
2023-11-14 2023-09-30 13F RESEARCH SOLUTIONS COM 761025105 72,900 3,500 5.04 0 0.0003
2023-08-11 2023-06-30 13F RESEARCH SOLUTIONS COM 761025105 69,400 -10,018 -12.61 0 0.0002
2023-05-12 2023-03-31 13F RESEARCH SOLUTIONS COM 761025105 79,418 5,983 8.15 0 0.0002
2023-02-13 2022-12-31 13F RESEARCH SOLUTIONS COM 761025105 73,435 15,735 27.27 0 -100.00 0.0002
2022-11-14 2022-09-30 13F RESEARCH SOLUTIONS COM 761025105 57,700 9,300 19.21 118 37.21 0.0002
2022-08-12 2022-06-30 13F RESEARCH SOLUTIONS COM 761025105 48,400 7,800 19.21 86 0.00 0.0001
2022-05-13 2022-03-31 13F RESEARCH SOLUTIONS COM 761025105 40,600 -34,400 -45.87 86 -53.51 0.0001
2022-02-11 2021-12-31 13F RESEARCH SOLUTIONS COM 761025105 75,000 -12,000 -13.79 185 -18.86 0.0002
2021-11-12 2021-09-30 13F RESEARCH SOLUTIONS COM 761025105 87,000 45,114 107.71 228 90.00 0.0003
2021-08-13 2021-06-30 13F RESEARCH SOLUTIONS COM 761025105 41,886 41,886 120 0.0001
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.