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

SecuritySSD / Simpson Manufacturing Co., Inc.
InstitutionTd Asset Management Inc
Latest Disclosed Ownership3,678 shares
Latest Disclosed Value $ 631,218
Td Asset Management Inc ownership in SSD / Simpson Manufacturing Co., Inc.

On May 11, 2026 - Td Asset Management Inc filed a 13F-HR form disclosing ownership of 3,678 shares of Simpson Manufacturing Co., Inc. (US:SSD) valued at $631,218 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 3,678 shares of Simpson Manufacturing Co., Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $681,938 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 SIMPSON MFG COM 829073105 3,678 0 0.00 631 6.41 0.0003
2026-02-10 2025-12-31 13F SIMPSON MFG COM 829073105 3,678 -2,120 -36.56 594 -38.87 0.0005
2025-11-10 2025-09-30 13F SIMPSON MFG COM 829073105 5,798 1,842 46.56 971 57.98 0.0008
2025-07-28 2025-06-30 13F SIMPSON MFG COM 829073105 3,956 -160 -3.89 614 -4.95 0.0005
2025-05-07 2025-03-31 13F SIMPSON MFG COM 829073105 4,116 -103,146 -96.16 647 -96.37 0.0006
2025-02-11 2024-12-31 13F SIMPSON MFG COM 829073105 107,262 -149,178 -58.17 17,787 -63.72 0.0157
2024-11-01 2024-09-30 13F SIMPSON MFG COM 829073105 256,440 -56,179 -17.97 49,026 -6.95 0.0433
2024-08-02 2024-06-30 13F SIMPSON MFG COM 829073105 312,619 -147,850 -32.11 52,686 -44.24 0.0491
2024-05-08 2024-03-31 13F SIMPSON MFG COM 829073105 460,469 -94,692 -17.06 94,479 -14.04 0.0879
2024-02-12 2023-12-31 13F SIMPSON MFG COM 829073105 555,161 465,193 517.06 109,911 715.48 0.1081
2023-10-27 2023-09-30 13F SIMPSON MFG COM 829073105 89,968 -14,203 -13.63 13,478 -6.58 0.0163
2023-08-09 2023-06-30 13F SIMPSON MFG COM 829073105 104,171 0 0.00 14,428 26.32 0.0164
2023-05-10 2023-03-31 13F SIMPSON MFG COM 829073105 104,171 -24,508 -19.05 11,421 0.11 0.0138
2023-02-07 2022-12-31 13F SIMPSON MFG COM 829073105 128,679 22,837 21.58 11,409 37.12 0.0141
2022-11-07 2022-09-30 13F SIMPSON MFG COM 829073105 105,842 10,605 11.14 8,320 -13.17 0.0104
2022-08-04 2022-06-30 13F SIMPSON MFG COM 829073105 95,237 0 0.00 9,582 -7.73 0.0111
2022-05-10 2022-03-31 13F SIMPSON MFG COM 829073105 95,237 27,026 39.62 10,385 9.48 0.0061
2022-02-10 2021-12-31 13F SIMPSON MFG COM 829073105 68,211 68,211 9,486 0.0079
2021-02-16 2020-12-31 13F SIMPSON MANUFACTURING COM 829073105 0 -150,600 -100.00 0 -100.00
2020-11-10 2020-09-30 13F SIMPSON MANUFACTURING COM 829073105 150,600 -57,800 -27.74 14,632 -16.77 0.0203
2020-08-13 2020-06-30 13F SIMPSON MANUFACTURING COM 829073105 208,400 -12,200 -5.53 17,581 28.58 0.0250
2020-05-15 2020-03-31 13F SIMPSON MANUFACTURING COM 829073105 220,600 7,451 3.50 13,673 -20.05 0.0231
2020-02-11 2019-12-31 13F SIMPSON MANUFACTURING COM 829073105 213,149 3,600 1.72 17,101 17.65 0.0248
2019-11-07 2019-09-30 13F SIMPSON MANUFACTURING COM 829073105 209,549 -5,600 -2.60 14,536 1.66 0.0222
2019-08-01 2019-06-30 13F SIMPSON MANUFACTURING COM 829073105 215,149 -33,900 -13.61 14,299 -3.13 0.0214
2019-05-08 2019-03-31 13F SIMPSON MANUFACTURING COM 829073105 249,049 54,200 27.82 14,761 39.95 0.0225
2019-02-01 2018-12-31 13F SIMPSON MANUFACTURING COM 829073105 194,849 35,400 22.20 10,547 -8.72 0.0183
2018-11-01 2018-09-30 13F SIMPSON MANUFACTURING COM 829073105 159,449 84,700 113.31 11,554 148.53 0.0171
2018-07-31 2018-06-30 13F SIMPSON MANUFACTURING COM 829073105 74,749 61,849 479.45 4,649 525.71 0.0071
2018-05-11 2018-03-31 13F SIMPSON MANUFACTURING COM 829073105 12,900 4,100 46.59 743 47.13 0.0011
2018-02-02 2017-12-31 13F SIMPSON MANUFACTURING COM 829073105 8,800 -9,400 -51.65 505 -36.56 0.0007
2017-02-08 2016-12-31 13F SIMPSON MANUFACTURING COM 829073105 18,200 -8,700 -32.34 796 -32.66 0.0013
2016-11-02 2016-09-30 13F SIMPSON MANUFACTURING COM 829073105 26,900 6,000 28.71 1,182 41.56 0.0020
2016-08-04 2016-06-30 13F SIMPSON MANUFACTURING COM 829073105 20,900 -1,800 -7.93 835 -3.58 0.0015
2016-05-05 2016-03-31 13F SIMPSON MANUFACTURING COM 829073105 22,700 3,500 18.23 866 32.01 0.0016
2016-02-04 2015-12-31 13F SIMPSON MANUFACTURING COM 829073105 19,200 4,100 27.15 656 29.64 0.0013
2015-11-12 2015-09-30 13F SIMPSON MANUFACTURING COM 829073105 15,100 800 5.59 506 4.12 0.0010
2015-08-11 2015-06-30 13F SIMPSON MANUFACTURING COM 829073105 14,300 -1,600 -10.06 486 -18.18 0.0009
2015-04-28 2015-03-31 13F SIMPSON MANUFACTURING COM 829073105 15,900 15,900 0.00 594 0.0011
2015-01-30 2014-12-31 13F SIMPSON MANUFACTURING COM 829073105 0 -13,300 -100.00 0 -100.00
2014-11-06 2014-09-30 13F SIMPSON MANUFACTURING COM 829073105 13,300 2,500 23.15 388 -1.27 0.0007
2014-08-12 2014-06-30 13F SIMPSON MANUFACTURING COM 829073105 10,800 -600 -5.26 393 -2.48 0.0007
2014-05-09 2014-03-31 13F SIMPSON MANUFACTURING COM 829073105 11,400 2,400 26.67 403 21.75 0.0007
2014-02-07 2013-12-31 13F SIMPSON MANUFACTURING COM 829073105 9,000 9,000 331 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.