Richardson Electronics, Ltd.
US ˙ NasdaqGS ˙ US7631651079

SecurityRELL / Richardson Electronics, Ltd.
InstitutionCitigroup Inc
Latest Disclosed Ownership562 shares
Latest Disclosed Value $ 6,154
Citigroup Inc reports 11.29% increase in ownership of RELL / Richardson Electronics, Ltd.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 562 shares of Richardson Electronics, Ltd. (US:RELL) valued at $6,154 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 505 shares of Richardson Electronics, Ltd.. This represents a change in shares of 11.29% during the quarter. The current value of the position is $9,267 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)
2026-05-11 2026-03-31 13F RICHARDSON ELECTRS COM 763165107 562 57 11.29 6 20.00 0.0000
2026-02-13 2025-12-31 13F RICHARDSON ELECTRS COM 763165107 505 178 54.43 5 66.67 0.0000
2025-11-10 2025-09-30 13F RICHARDSON ELECTRS COM 763165107 327 -3,922 -92.30 3 -92.68 0.0000
2025-08-11 2025-06-30 13F RICHARDSON ELECTRS COM 763165107 4,249 -4,971 -53.92 41 -59.80 0.0000
2025-05-12 2025-03-31 13F RICHARDSON ELECTRS COM 763165107 9,220 -1,635 -15.06 103 -32.89 0.0001
2025-02-12 2024-12-31 13F RICHARDSON ELECTRS COM 763165107 10,855 947 9.56 152 24.59 0.0001
2024-11-12 2024-09-30 13F RICHARDSON ELECTRS COM 763165107 9,908 6,539 194.09 122 205.00 0.0001
2024-08-12 2024-06-30 13F RICHARDSON ELECTRS COM 763165107 3,369 920 37.57 40 81.82 0.0000
2024-05-10 2024-03-31 13F RICHARDSON ELECTRS COM 763165107 2,449 442 22.02 23 -15.38 0.0000
2024-02-09 2023-12-31 13F RICHARDSON ELECTRS COM 763165107 2,007 1,981 7,619.23 27 0.0000
2023-12-06 2023-09-30 13F/A-1 RICHARDSON ELECTRS COM 763165107 26 -3,548 -99.27 0 -100.00 0.0000
2023-11-09 2023-09-30 13F RICHARDSON ELECTRS COM 763165107 26 -3,548 0 0.0000
2023-08-10 2023-06-30 13F RICHARDSON ELECTRS COM 763165107 3,574 -6,369 -64.06 59 -73.76 0.0000
2023-05-11 2023-03-31 13F RICHARDSON ELECTRS COM 763165107 9,943 -78 -0.78 222 3.76 0.0002
2023-02-09 2022-12-31 13F RICHARDSON ELECTRS COM 763165107 10,021 10,021 214 0.0002
2022-11-10 2022-09-30 13F RICHARDSON ELECTRS COM 763165107 0 -135 -100.00 0 -100.00
2022-08-10 2022-06-30 13F RICHARDSON ELECTRS COM 763165107 135 135 2 0.0000
2020-05-12 2020-03-31 13F RICHARDSON ELECTRS COM 763165107 0 -41 -100.00 0 0.0000
2020-02-12 2019-12-31 13F RICHARDSON ELECTRS COM 763165107 41 41 0 0.0000
2016-02-12 2015-12-31 13F RICHARDSON ELECTRS COM 763165107 0 -107 -100.00 0 -100.00
2015-11-13 2015-09-30 13F RICHARDSON ELECTRS COM 763165107 107 44 69.84 1 0.00 0.0000
2015-08-13 2015-06-30 13F RICHARDSON ELECTRS COM 763165107 63 -3,185 -98.06 1 -96.55 0.0000
2015-05-14 2015-03-31 13F RICHARDSON ELECTRS COM 763165107 3,248 -1,918 -37.13 29 -43.14 0.0000
2015-02-17 2014-12-31 13F RICHARDSON ELECTRS COM 763165107 5,166 -54 -1.03 51 -1.92 0.0000
2014-11-14 2014-09-30 13F RICHARDSON ELECTRS COM 763165107 5,220 1,192 29.59 52 23.81 0.0000
2014-08-14 2014-06-30 13F RICHARDSON ELECTRS COM 763165107 4,028 -1,227 -23.35 42 -26.32 0.0000
2014-05-15 2014-03-31 13F RICHARDSON ELECTRS COM 763165107 5,255 -5,909 -52.93 57 -54.76 0.0001
2014-02-14 2013-12-31 13F RICHARDSON ELECTRS COM 763165107 11,164 7,395 196.21 126 193.02 0.0001
2013-11-14 2013-09-30 13F RICHARDSON ELECTRS COM 763165107 3,769 -3,407 -47.48 43 -48.81 0.0000
2013-08-14 2013-06-30 13F RICHARDSON ELECTRS COM 763165107 7,176 7,176 84 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.