Citadel Advisors Llc reports 1,448.81% increase in ownership of SRU / Standard Motor Products, Inc.

Standard Motor Products, Inc.

DE ˙ DB ˙ US8536661056

33,40 € ↑0,20 (0,60%)

2026-06-05
DEL PRIS

Security	DE:SRU / Standard Motor Products, Inc.
Institution	Citadel Advisors Llc
Manager	Ken Griffin
Latest Disclosed Ownership	102,841 shares
Latest Disclosed Value	$ 3,572,697

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 102,841 shares of Standard Motor Products, Inc. (DE:SRU) valued at $3,188,071 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 6,640 shares of Standard Motor Products, Inc.. This represents a change in shares of 1,448.81% during the quarter. The current value of the position is $3,434,889 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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-15	2026-03-31	13F	STANDARD MTR PRODS	COM	853666105	102,841	96,201	1,448.81	3,573	1,363.93	0.0005
2026-02-17	2025-12-31	13F	STANDARD MTR PRODS	COM	853666105	6,640	-144,584	-95.61	245	-96.05	0.0000
2025-11-14	2025-09-30	13F	STANDARD MTR PRODS	COM	853666105	151,224	-48,920	-24.44	6,173	0.39	0.0009
2025-08-14	2025-06-30	13F	STANDARD MTR PRODS	COM	853666105	200,144	86,340	75.87	6,148	116.71	0.0011
2025-05-15	2025-03-31	13F	STANDARD MTR PRODS	COM	853666105	113,804	32,374	39.76	2,837	12.49	0.0005
2025-02-14	2024-12-31	13F	STANDARD MTR PRODS	COM	853666105	81,430	-134,374	-62.27	2,523	-64.80	0.0004
2024-11-14	2024-09-30	13F	STANDARD MTR PRODS	COM	853666105	215,804	155,589	258.39	7,165	329.24	0.0014
2024-08-14	2024-06-30	13F	STANDARD MTR PRODS	COM	853666105	60,215	-247	-0.41	1,670	-17.70	0.0003
2024-05-15	2024-03-31	13F	STANDARD MTR PRODS	COM	853666105	60,462	52,239	635.28	2,028	520.18	0.0004
2024-02-14	2023-12-31	13F	STANDARD MTR PRODS	COM	853666105	8,223	-68,108	-89.23	327	-87.26	0.0001
2023-11-14	2023-09-30	13F	STANDARD MTR PRODS	COM	853666105	76,331	-122,364	-61.58	2,566	-65.58	0.0006
2023-08-14	2023-06-30	13F	STANDARD MTR PRODS	COM	853666105	198,695	-112,031	-36.05	7,455	-34.99	0.0015
2023-05-15	2023-03-31	13F	STANDARD MTR PRODS	COM	853666105	310,726	167,837	117.46	11,469	130.65	0.0025
2023-02-14	2022-12-31	13F	STANDARD MTR PRODS	COM	853666105	142,889	49,981	53.80	4,973	64.64	0.0012
2022-11-14	2022-09-30	13F	STANDARD MTR PRODS	COM	853666105	92,908	-22,264	-19.33	3,020	-41.71	0.0007
2022-08-15	2022-06-30	13F	STANDARD MTR PRODS	COM	853666105	115,172	77,847	208.57	5,181	221.80	0.0013
2022-05-16	2022-03-31	13F	STANDARD MTR PRODS	COM	853666105	37,325	13,172	54.54	1,610	27.27	0.0003
2022-02-14	2021-12-31	13F	STANDARD MTR PRODS	COM	853666105	24,153	-56,584	-70.08	1,265	-64.15	0.0003
2021-11-15	2021-09-30	13F	STANDARD MTR PRODS	Cmn	853666105	80,737	-47,694	-37.14	3,529	-36.61	0.0007
2021-08-16	2021-06-30	13F	STANDARD MTR PRODS	COM	853666105	128,431	-57,220	-30.82	5,567	-27.88	0.0012
2021-05-21	2021-03-31	13F/A-1	STANDARD MTR PRODS	COM	853666105	185,651	137,671	286.93	7,719	297.68	0.0019
2021-05-17	2021-03-31	13F	STANDARD MTR PRODS	COM	853666105	185,651	137,671		7,719		0.0019
2021-02-16	2020-12-31	13F	STANDARD MTR PRODS	COM	853666105	47,980	-24,838	-34.11	1,941	-40.30	0.0005
2020-11-16	2020-09-30	13F	STANDARD MTR PRODS	COM	853666105	72,818	27,297	59.97	3,251	73.39	0.0009
2020-08-14	2020-06-30	13F	STANDARD MTR PRODS	Cmn	853666105	45,521	-7,285	-13.80	1,875	-14.58	0.0007
2020-05-15	2020-03-31	13F	STANDARD MTR PRODS	Cmn	853666105	52,806	-32,811	-38.32	2,195	-51.83	0.0010
2020-02-14	2019-12-31	13F	STANDARD MTR PRODS	Cmn	853666105	85,617	25,792	43.11	4,557	56.92	0.0020
2019-11-14	2019-09-30	13F	STANDARD MTR PRODS	Cmn	853666105	59,825	20,139	50.75	2,904	61.42	0.0014
2019-08-14	2019-06-30	13F	STANDARD MTR PRODS	Cmn	853666105	39,686	-16,336	-29.16	1,799	-34.61	0.0008
2019-05-15	2019-03-31	13F	STANDARD MTR PRODS	Cmn	853666105	56,022	-2,758	-4.69	2,751	-3.37	0.0014
2019-02-14	2018-12-31	13F	STANDARD MTR PRODS	Cmn	853666105	58,780	-93,697	-61.45	2,847	-62.07	0.0016
2018-11-13	2018-09-30	13F	STANDARD MTR PRODS	Cmn	853666105	152,477	-7,278	-4.56	7,505	-2.82	0.0034
2018-08-14	2018-06-30	13F/A-1	STANDARD MTR PRODS	Cmn	853666105	159,755	112,873	240.76	7,723	246.32	0.0038
2018-08-10	2018-06-30	13F	STANDARD MTR PRODS	Cmn	853666105	159,755	112,873		7,723
2018-05-14	2018-03-31	13F/A-1	STANDARD MTR PRODS	Cmn	853666105	46,882	1,493	3.29	2,230	9.42	0.0012
2018-05-11	2018-03-31	13F	STANDARD MTR PRODS	Cmn	853666105	46,882	1,493		2,230
2018-02-09	2017-12-31	13F	STANDARD MTR PRODS	Cmn	853666105	45,389	-4,090	-8.27	2,038	-14.66	0.0012
2017-11-09	2017-09-30	13F	STANDARD MTR PRODS	Cmn	853666105	49,479	25,982	110.58	2,388	94.62	0.0018
2017-08-11	2017-06-30	13F	STANDARD MTR PRODS	Cmn	853666105	23,497	13,552	136.27	1,227	150.92	0.0010
2017-05-12	2017-03-31	13F	STANDARD MTR PRODS	Cmn	853666105	9,945	-10,973	-52.46	489	-56.06	0.0004
2017-02-10	2016-12-31	13F	STANDARD MTR PRODS	Cmn	853666105	20,918	-3,917	-15.77	1,113	-6.16	0.0011
2017-01-31	2016-09-30	13F/A-1	STANDARD MTR PRODS	Cmn	853666105	24,835	24,835	0.00	1,186		0.0012
2016-11-10	2016-09-30	13F	STANDARD MOTOR PRODS CMN STK	Cmn	853666105	24,835			1,186
2016-08-12	2016-06-30	13F	STANDARD MOTOR PRODS CMN STK	Cmn	853666105	0	-34,020	-100.00	0	-100.00
2017-01-31	2016-03-31	13F/A-1	STANDARD MTR PRODS	Cmn	853666105	34,020	9,733	40.07	1,179	27.60	0.0015
2016-05-13	2016-03-31	13F	STANDARD MOTOR PRODS CMN STK	Cmn	853666105	34,020			1,179
2017-01-31	2015-12-31	13F/A-1	STANDARD MTR PRODS	Cmn	853666105	24,287	24,287	0.00	924		0.0010
2016-02-12	2015-12-31	13F	STANDARD MOTOR PRODS CMN STK	Cmn	853666105	24,287			924
2014-11-14	2014-09-30	13F	STANDARD MOTOR PRODS CMN STK	Cmn	853666105	0	-4,990	-100.00	0	-100.00
2014-08-14	2014-06-30	13F	STANDARD MOTOR PRODS CMN STK	Cmn	853666105	4,990	-7,295	-59.38	223	-49.20	0.0003
2014-05-15	2014-03-31	13F	STANDARD MOTOR PRODS CMN STK	Cmn	853666105	12,285	12,285		439		0.0006

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.