Simpson Manufacturing Co., Inc.
US ˙ NYSE ˙ US8290731053

SecuritySSD / Simpson Manufacturing Co., Inc.
InstitutionAllworth Financial LP
Latest Disclosed Ownership635 shares
Latest Disclosed Value $ 108,979
Allworth Financial LP reports 1.93% increase in ownership of SSD / Simpson Manufacturing Co., Inc.

On May 14, 2026 - Allworth Financial LP filed a 13F-HR form disclosing ownership of 635 shares of Simpson Manufacturing Co., Inc. (US:SSD) valued at $108,979 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 623 shares of Simpson Manufacturing Co., Inc.. This represents a change in shares of 1.93% during the quarter. The current value of the position is $119,507 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 SIMPSON MFG COM 829073105 635 12 1.93 109 8.00 0.0004
2026-02-05 2025-12-31 13F SIMPSON MFG COM 829073105 623 292 88.22 101 81.82 0.0004
2025-12-02 2025-09-30 13F SIMPSON MFG COM 829073105 331 95 40.25 55 52.78 0.0002
2025-08-07 2025-06-30 13F SIMPSON MFG COM 829073105 236 0 0.00 37 0.00 0.0002
2025-04-30 2025-03-31 13F SIMPSON MFG COM 829073105 236 -13 -5.22 36 -12.20 0.0002
2025-01-30 2024-12-31 13F SIMPSON MFG COM 829073105 249 19 8.26 42 -4.65 0.0002
2024-10-23 2024-09-30 13F SIMPSON MFG COM 829073105 230 2 0.88 44 4.88 0.0003
2024-07-24 2024-06-30 13F SIMPSON MFG COM 829073105 228 -21 -8.43 41 -19.61 0.0003
2024-04-25 2024-03-31 13F SIMPSON MFG COM 829073105 249 6 2.47 51 6.25 0.0004
2024-01-24 2023-12-31 13F SIMPSON MFG COM 829073105 243 9 3.85 48 37.14 0.0004
2023-10-31 2023-09-30 13F SIMPSON MFG COM 829073105 234 26 12.50 35 25.00 0.0003
2023-07-18 2023-06-30 13F SIMPSON MFG COM 829073105 208 0 0.00 29 27.27 0.0002
2023-04-18 2023-03-31 13F SIMPSON MFG COM 829073105 208 0 0.00 23 22.22 0.0002
2023-01-13 2022-12-31 13F SIMPSON MFG COM 829073105 208 -142 -40.57 18 -33.33 0.0002
2022-11-14 2022-09-30 13F/A-1 SIMPSON MFG COM 829073105 350 25 7.69 27 -18.18 0.0003
2022-10-18 2022-09-30 13F SIMPSON MFG COM 829073105 350 25 27 0.0003
2022-07-13 2022-06-30 13F SIMPSON MFG COM 829073105 325 125 62.50 33 50.00 0.0005
2022-04-22 2022-03-31 13F SIMPSON MFG COM 829073105 200 0 0.00 22 -21.43 0.0003
2022-01-21 2021-12-31 13F SIMPSON MFG COM 829073105 200 0 0.00 28 33.33 0.0004
2021-11-02 2021-09-30 13F SIMPSON MFG COM 829073105 200 0 0.00 21 -4.55 0.0004
2021-08-02 2021-06-30 13F SIMPSON MFG COM 829073105 200 0 0.00 22 4.76 0.0004
2021-04-29 2021-03-31 13F SIMPSON MFG COM 829073105 200 0 0.00 21 10.53 0.0004
2021-01-26 2020-12-31 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 19 0.00 0.0005
2020-11-03 2020-09-30 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 19 11.76 0.0006
2020-07-24 2020-06-30 13F SIMPSON MANUFACTURING COM 829073105 200 -114 -36.31 17 -10.53 0.0005
2020-04-17 2020-03-31 13F SIMPSON MANUFACTURING COM 829073105 314 114 57.00 19 18.75 0.0006
2020-01-16 2019-12-31 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 16 14.29 0.0006
2019-10-09 2019-09-30 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 14 7.69 0.0005
2019-07-25 2019-06-30 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 13 8.33 0.0005
2019-05-07 2019-03-31 13F SIMPSON MANUFACTURING CO I COM 829073105 200 0 0.00 12 9.09 0.0005
2019-02-11 2018-12-31 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 11 -21.43 0.0005
2018-10-29 2018-09-30 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 14 16.67 0.0006
2018-08-08 2018-06-30 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 12 0.00 0.0006
2018-05-01 2018-03-31 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 12 9.09 0.0009
2018-02-21 2017-12-31 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 11 10.00 0.0009
2017-10-12 2017-09-30 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 10 11.11 0.0008
2017-08-07 2017-06-30 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 9 0.00 0.0008
2017-05-09 2017-03-31 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 9 0.00 0.0008
2017-02-02 2016-12-31 13F SIMPSON MANUFACTURING COM 829073105 200 0 0.00 9 0.00 0.0009
2017-02-07 2016-09-30 13F SIMPSON MANUFACTURING CO IN COM 829073105 200 200 9 0.0009
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.