SIMPSON MANUFACTURING CO INC (SSD) Stock Institutional Trading Activity


SIMPSON MANUFACTURING CO INC (SSD) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include ValueAct Holdings, Renaissance Technologies LLC, Disciplined Growth Investors, Ariel Appreciation Fund, and Parnassus Endeavor Fund. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

Explore more:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2018Ariel Appreciation FundSell-48,5701,774,558$128,584
Q3 2018Renaissance Technologies LLCSell-31,50096,000$6,956
Q2 2018Ariel Appreciation FundSell-57,9121,823,128$113,380
Q1 2018Ariel Appreciation FundBuy160,4821,881,040$108,329
Q1 2018Renaissance Technologies LLCBuy123,900127,500$7,343
Q4 2017Ariel Appreciation FundSell-48,8401,720,558$98,777
Q4 2017Renaissance Technologies LLCSell-33,2003,600$207
Q3 2017Ariel Appreciation FundBuy8,2311,769,398$86,771
Q2 2017Ariel Appreciation FundBuy6,7441,761,167$76,981
Q2 2017Renaissance Technologies LLCSell-51,10036,800$1,609
Q1 2017Ariel Appreciation FundSell-148,7781,754,423$75,598
Q1 2017Renaissance Technologies LLCSell-33,13987,900$3,788
Q4 2016Ariel Appreciation FundSell-557,6031,903,201$83,265
Q4 2016Renaissance Technologies LLCBuy7,539121,039$5,295
Q3 2016Ariel Appreciation FundSell-178,9572,460,804$108,152
Q3 2016Renaissance Technologies LLCSell-191,500113,500$4,988
Q2 2016Ariel Appreciation FundSell-356,7992,639,761$105,511
Q2 2016Renaissance Technologies LLCSell-81,600305,000$12,191
Q1 2016Ariel Appreciation FundSell-17,2502,996,560$114,379
Q1 2016Renaissance Technologies LLCBuy151,200386,600$14,757
Q4 2015Ariel Appreciation FundSell-5,8103,013,810$102,922
Q4 2015Renaissance Technologies LLCBuy113,100235,400$8,039
Q3 2015Ariel Appreciation FundSell-124,0503,019,620$101,127
Q3 2015Renaissance Technologies LLCBuy3,800122,300$4,096
Q2 2015Ariel Appreciation FundSell-60,8703,143,670$106,885
Q2 2015Renaissance Technologies LLCBuy57,600118,500$4,029
Q1 2015Ariel Appreciation FundBuy25,6693,204,540$119,754
Q1 2015Renaissance Technologies LLCSell-26,30060,900$2,276
Q4 2014Ariel Appreciation FundBuy242,6253,178,871$109,989
Q4 2014Renaissance Technologies LLCBuy30,80087,200$3,017

Frequently asked questions about SSD activity

  • Which institutional owners are buying SSD?

    Institutional owners buying SSD include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in SSD activity?

    "Buy" means an investor increased their reported position in SSD compared to the prior reporting period. This reflects growing exposure to SIMPSON MANUFACTURING CO INC (SSD) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in SSD increasing?

    Institutional interest in SSD can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.