Fmr Llc ownership in TWL / Simpson Manufacturing Co., Inc.

Simpson Manufacturing Co., Inc.

DE ˙ DB ˙ US8290731053

161,20 € ↓ −1,70 (−1,04%)

2026-06-04
DELAT PRIS

Security	DE:TWL / Simpson Manufacturing Co., Inc.
Institution	Fmr Llc
Latest Disclosed Ownership	2,646,302 shares
Ownership	6.40%

2026-05-06 - Fmr Llc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 2,646,302 shares of Simpson Manufacturing Co., Inc. (DE:TWL). This represents 6.4 percent ownership of the company. In their previous filing dated 2025-11-05 , Fmr Llc had reported owning 2,114,032 shares, indicating an increase of 25.18 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2026-05-06	2026-05-06	13G/A	2,114,032	2,646,302	25.18	6.40	25.49
2025-11-05	2025-11-05	13G		2,114,032		5.10

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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.

Upgrade to unlock premium data and export to Excel Premium Registration Required .

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	SIMPSON MFG	COM	829073105	2,646,302	503,755	23.51	454,158	31.28	0.0048
2026-02-17	2025-12-31	13F	SIMPSON MFG	COM	829073105	2,142,547	28,515	1.35	345,957	-2.28	0.0176
2025-11-13	2025-09-30	13F	SIMPSON MFG	COM	829073105	2,114,032	534,194	33.81	354,016	44.28	0.0184
2025-08-14	2025-06-30	13F	SIMPSON MFG	COM	829073105	1,579,838	89,397	6.00	245,365	4.80	0.0138
2025-05-12	2025-03-31	13F	SIMPSON MFG	COM	829073105	1,490,441	-125,417	-7.76	234,119	-12.63	0.0149
2025-02-13	2024-12-31	13F	SIMPSON MFG	COM	829073105	1,615,858	-94,500	-5.53	267,958	-18.09	0.0160
2024-11-13	2024-09-30	13F	SIMPSON MFG	COM	829073105	1,710,358	333,390	24.21	327,140	40.97	0.0199
2024-08-13	2024-06-30	13F	SIMPSON MFG	COM	829073105	1,376,968	-311,578	-18.45	232,060	-33.02	0.0149
2024-05-13	2024-03-31	13F	SIMPSON MFG	COM	829073105	1,688,546	483,173	40.08	346,456	45.18	0.0233
2024-02-13	2023-12-31	13F	SIMPSON MFG	COM	829073105	1,205,373	154,223	14.67	238,640	51.54	0.0183
2023-11-13	2023-09-30	13F	SIMPSON MFG	COM	829073105	1,051,150	343,986	48.64	157,473	60.78	0.0136
2023-08-11	2023-06-30	13F	SIMPSON MFG	COM	829073105	707,164	190,040	36.75	97,942	72.75	0.0082
2023-08-11	2023-03-31	13F/A-1	SIMPSON MFG	COM	829073105	517,124	11,466	2.27	56,698	26.47	0.0052
2023-05-11	2023-03-31	13F	SIMPSON MFG	COM	829073105	517,124	11,466		56,698		0.0010
2023-02-13	2022-12-31	13F	SIMPSON MFG	COM	829073105	505,658	-24,246	-4.58	44,832	7.91	0.0045
2022-11-10	2022-09-30	13F	SIMPSON MFG	COM	829073105	529,904	9,875	1.90	41,544	-20.60	0.0043
2022-08-12	2022-06-30	13F	SIMPSON MFG	COM	829073105	520,029	-264,684	-33.73	52,320	-38.85	0.0052
2022-05-13	2022-03-31	13F	SIMPSON MFG	COM	829073105	784,713	-62,496	-7.38	85,565	-27.38	0.0068
2022-02-14	2021-12-31	13F	SIMPSON MFG	COM	829073105	847,209	25,573	3.11	117,822	34.05	0.0087
2022-02-14	2021-09-30	13F/A-1	SIMPSON MFG	COM	829073105	821,636	-8,744	-1.05	87,891	-4.16	0.0070
2021-11-15	2021-09-30	13F	SIMPSON MFG	COM	829073105	821,636	-8,744		87,891		0.0013
2021-08-13	2021-06-30	13F	SIMPSON MFG	COM	829073105	830,380	197,340	31.17	91,707	39.66	0.0072
2021-05-14	2021-03-31	13F	SIMPSON MFG	COM	829073105	633,040	126,589	25.00	65,666	38.75	0.0056
2021-02-08	2020-12-31	13F	SIMPSON MANUFACTURING	COM	829073105	506,451	19,044	3.91	47,328	-0.06	0.0042
2020-11-13	2020-09-30	13F	SIMPSON MANUFACTURING	COM	829073105	487,407	-86,987	-15.14	47,356	-2.27	0.0048
2020-08-24	2020-06-30	13F/A-1	SIMPSON MANUFACTURING	COM	829073105	574,394	-68,032	-10.59	48,456	21.70	0.0053
2020-08-13	2020-06-30	13F	SIMPSON MANUFACTURING	COM	829073105	574,394	-68,032		48,456		1,190.4221
2020-05-14	2020-03-31	13F	SIMPSON MANUFACTURING	COM	829073105	642,426	-17,317	-2.62	39,817	-24.78	0.0055
2020-02-07	2019-12-31	13F	SIMPSON MANUFACTURING	COM	829073105	659,743	-153,163	-18.84	52,931	-6.14	0.0058
2019-11-13	2019-09-30	13F	SIMPSON MANUFACTURING	COM	829073105	812,906	-87,127	-9.68	56,392	-5.72	0.0068
2019-08-13	2019-06-30	13F	SIMPSON MANUFACTURING	COM	829073105	900,033	-49,175	-5.18	59,816	6.32	0.0070
2019-05-13	2019-03-31	13F	SIMPSON MANUFACTURING	COM	829073105	949,208	78,490	9.01	56,260	19.37	0.0067
2019-02-13	2018-12-31	13F	SIMPSON MANUFACTURING	COM	829073105	870,718	39,008	4.69	47,132	-21.79	0.0065
2018-11-09	2018-09-30	13F	SIMPSON MANUFACTURING	COM	829073105	831,710	10,710	1.30	60,266	18.03	0.0068
2018-08-10	2018-06-30	13F	SIMPSON MANUFACTURING	COM	829073105	821,000	180,900	28.26	51,058	38.51	0.0060
2018-05-14	2018-03-31	13F	SIMPSON MANUFACTURING	COM	829073105	640,100	-36,700	-5.42	36,863	-5.13	0.0044
2018-02-12	2017-12-31	13F	SIMPSON MANUFACTURING	COM	829073105	676,800	39,000	6.11	38,855	24.22	0.0046
2017-11-13	2017-09-30	13F	SIMPSON MANUFACTURING	COM	829073105	637,800	-4,740	-0.74	31,278	11.37	0.0038
2017-08-29	2017-06-30	13F/A-1	SIMPSON MANUFACTURING	COM	829073105	642,540	266	0.04	28,085	1.48	0.0035
2017-08-11	2017-06-30	13F	SIMPSON MANUFACTURING	COM	829073105	642,540	266		28,085
2017-05-11	2017-03-31	13F	SIMPSON MANUFACTURING	COM	829073105	642,274	2,340	0.37	27,676	-1.15	0.0035
2017-02-10	2016-12-31	13F	SIMPSON MANUFACTURING	COM	829073105	639,934	55,500	9.50	27,997	9.00	0.0037
2016-11-14	2016-09-30	13F	SIMPSON MANUFACTURING	COM	829073105	584,434	5,600	0.97	25,686	11.02	0.0034
2016-08-11	2016-06-30	13F	SIMPSON MANUFACTURING	COM	829073105	578,834	578,834		23,136		0.0032

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.