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

SecuritySSD / Simpson Manufacturing Co., Inc.
InstitutionStifel Financial Corp
Latest Disclosed Ownership46,828 shares
Latest Disclosed Value $ 8,036,628
Stifel Financial Corp reports 9.39% decrease in ownership of SSD / Simpson Manufacturing Co., Inc.

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 46,828 shares of Simpson Manufacturing Co., Inc. (US:SSD) valued at $8,036,621 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 51,682 shares of Simpson Manufacturing Co., Inc.. This represents a change in shares of -9.39% during the quarter. The current value of the position is $8,747,939 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)
2026-05-12 2026-03-31 13F SIMPSON MFG COM 829073105 46,828 -4,854 -9.39 8,037 -3.70 0.0017
2026-02-13 2025-12-31 13F SIMPSON MFG COM 829073105 51,682 -3,003 -5.49 8,345 -8.87 0.0075
2025-11-12 2025-09-30 13F SIMPSON MFG COM 829073105 54,685 -747 -1.35 9,158 6.37 0.0084
2025-08-14 2025-06-30 13F SIMPSON MFG COM 829073105 55,432 -1,725 -3.02 8,609 -4.12 0.0084
2025-05-14 2025-03-31 13F SIMPSON MFG COM 829073105 57,157 -29,983 -34.41 8,979 -37.87 0.0095
2025-02-13 2024-12-31 13F SIMPSON MFG COM 829073105 87,140 402 0.46 14,451 -12.89 0.0151
2024-11-14 2024-09-30 13F SIMPSON MFG COM 829073105 86,738 920 1.07 16,591 14.71 0.0174
2024-08-13 2024-06-30 13F SIMPSON MFG COM 829073105 85,818 -4,412 -4.89 14,463 -21.88 0.0163
2024-05-14 2024-03-31 13F SIMPSON MFG COM 829073105 90,230 -1,839 -2.00 18,514 1.57 0.0211
2024-02-12 2023-12-31 13F SIMPSON MFG COM 829073105 92,069 5,735 6.64 18,228 40.93 0.0229
2023-11-13 2023-09-30 13F SIMPSON MFG COM 829073105 86,334 -626 -0.72 12,934 7.39 0.0182
2023-08-14 2023-06-30 13F SIMPSON MFG COM 829073105 86,960 -5,990 -6.44 12,044 18.18 0.0165
2023-05-12 2023-03-31 13F SIMPSON MFG COM 829073105 92,950 8,344 9.86 10,191 35.86 0.0146
2023-02-13 2022-12-31 13F SIMPSON MFG COM 829073105 84,606 12,527 17.38 7,501 32.74 0.0113
2022-11-14 2022-09-30 13F SIMPSON MFG COM 829073105 72,079 -1,186 -1.62 5,651 -23.33 0.0093
2022-08-15 2022-06-30 13F SIMPSON MFG COM 829073105 73,265 -1,074 -1.44 7,371 -9.07 0.0115
2022-05-13 2022-03-31 13F SIMPSON MFG COM 829073105 74,339 885 1.20 8,106 -20.65 0.0111
2022-02-14 2021-12-31 13F SIMPSON MFG COM 829073105 73,454 2,078 2.91 10,216 33.80 0.0135
2021-11-15 2021-09-30 13F SIMPSON MFG COM 829073105 71,376 9,798 15.91 7,635 12.28 0.0112
2021-08-13 2021-06-30 13F SIMPSON MFG COM 829073105 61,578 1,003 1.66 6,800 8.21 0.0102
2021-05-14 2021-03-31 13F SIMPSON MFG COM 829073105 60,575 12,057 24.85 6,284 38.60 0.0104
2021-02-12 2020-12-31 13F SIMPSON MANUFACTURING COM 829073105 48,518 -705 -1.43 4,534 -5.21 0.0081
2020-11-16 2020-09-30 13F SIMPSON MANUFACTURING COM 829073105 49,223 1,033 2.14 4,783 17.63 0.0098
2020-08-14 2020-06-30 13F SIMPSON MANUFACTURING COM 829073105 48,190 12 0.02 4,066 36.40 0.0094
2020-05-14 2020-03-31 13F SIMPSON MANUFACTURING COM 829073105 48,178 42,185 703.90 2,981 519.75 0.0082
2020-02-13 2019-12-31 13F SIMPSON MANUFACTURING COM 829073105 5,993 -428 -6.67 481 7.85 0.0010
2019-11-19 2019-09-30 13F/A-1 SIMPSON MANUFACTURING COM 829073105 6,421 1,099 20.65 446 25.99 0.0011
2019-11-13 2019-09-30 13F SIMPSON MANUFACTURING COM 829073105 6,421 1,099 446 250.0054
2019-08-14 2019-06-30 13F SIMPSON MANUFACTURING COM 829073105 5,322 113 2.17 354 14.56 0.0009
2019-05-14 2019-03-31 13F SIMPSON MANUFACTURING COM 829073105 5,209 5,209 309 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.