Stock Ownership/SSD

SIMPSON MFG INC (SSD): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in SSD · Industrials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
23
13F filers
Aggregate Value
$379.9M
Across holders
Last Price
$187.53
2026-08-24
Sector
Industrials
GICS
Quarterly fund activity17 increased6 reduced5 exited
Full exits: Fisher Asset Management, LLC, Verition Fund Management LLC, ADAGE CAPITAL PARTNERS GP, L.L.C., Select Equity Group, L.P., Brevan Howard Capital Management LP
Institutional Holders of SSD
↗
23 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
ValueAct Holdings, L.P.
CIK 0001418814
Hedge Fund831K$173.9M45.8%3.1%Reduced$-118.8MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund219K$45.9M12.1%0.0%Added+$45.9MQ2 2026
Clearbridge Investments, LLC
CIK 0001348883
Hedge Fund134K$28.0M7.4%0.0%Added+$8.1MQ2 2026
Gotham Asset Management, LLC
CIK 0001510387
Hedge Fund131K$27.5M7.2%0.1%Added+$1.1MQ2 2026
ARIEL INVESTMENTS, LLC
CIK 0000936753
Institutional Manager100K$20.8M5.5%0.2%Added$-25.9MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund61K$12.7M3.3%0.0%Added+$3.2MQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund53K$11.2M2.9%0.0%Added+$10.0MQ2 2026
Bridgewater Associates, LP
CIK 0001350694
Hedge Fund39K$8.1M2.1%0.0%Added—Q2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund30K$6.3M1.6%0.0%Reduced$-11.0MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund30K$6.2M1.6%0.0%Added—Q2 2026
ValueAct Holdings, L.P.Reduced
Hedge Fund
$173.9M· 45.8% of total· 3.1% port· 831K sh· $-118.8M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$45.9M· 12.1% of total· 0.0% port· 219K sh· +$45.9M QoQ· Q2 2026
Clearbridge Investments, LLCAdded
Hedge Fund
$28.0M· 7.4% of total· 0.0% port· 134K sh· +$8.1M QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$27.5M· 7.2% of total· 0.1% port· 131K sh· +$1.1M QoQ· Q2 2026
ARIEL INVESTMENTS, LLCAdded
Institutional Manager
$20.8M· 5.5% of total· 0.2% port· 100K sh· $-25.9M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$12.7M· 3.3% of total· 0.0% port· 61K sh· +$3.2M QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$11.2M· 2.9% of total· 0.0% port· 53K sh· +$10.0M QoQ· Q2 2026
Bridgewater Associates, LPAdded
Hedge Fund
$8.1M· 2.1% of total· 0.0% port· 39K sh· — QoQ· Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$6.3M· 1.6% of total· 0.0% port· 30K sh· $-11.0M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$6.2M· 1.6% of total· 0.0% port· 30K sh· — QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$6.1M· 1.6% of total· 0.0% port· 29K sh· $-15.8M QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$5.6M· 1.5% of total· 0.0% port· 27K sh· — QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$5.4M· 1.4% of total· 0.0% port· 26K sh· $-18.8M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$5.3M· 1.4% of total· 0.0% port· 25K sh· +$375K QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$4.3M· 1.1% of total· 0.0% port· 21K sh· — QoQ· Q2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLCReduced
Hedge Fund
$4.1M· 1.1% of total· 0.0% port· 19K sh· $-4.0M QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$3.6M· 1.0% of total· 0.0% port· 17K sh· +$2.5M QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$2.6M· 0.7% of total· 0.0% port· 12K sh· — QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$1.1M· 0.3% of total· 0.0% port· 5K sh· +$200K QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$1.1M· 0.3% of total· 0.0% port· 5K sh· — QoQ· Q2 2026
CAXTON ASSOCIATES LLPAdded
Hedge Fund
$347K· 0.1% of total· 0.0% port· 2K sh· — QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$1K· 0.0% of total· 0.0% port· 6 sh· — QoQ· Q2 2026
Ancora Advisors, LLCReduced
Hedge Fund
$1K· 0.0% of total· 0.0% port· 6 sh· $-42K QoQ· Q2 2026
1–10 of 23
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