Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in SSD held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 4.0M | $691.9M | +0.6% | 9.738% | 0.01% |
| 2 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 3.9M | $666.8M | -3.3% | 9.385% | 1.96% |
| 3 | FMR LLC | 2.6M | $454.2M | +23.5% | 6.392% | 0.02% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.9M | $330.8M | β | 4.656% | 0.02% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 1.9M | $319.9M | β | 4.502% | 0.01% |
| 6 | ValueAct Holdings, L.P. | 1.4M | $239.9M | -5.0% | 3.377% | 4.20% |
| 7 | MORGAN STANLEY | 1.3M | $222.6M | -13.8% | 3.133% | 0.01% |
| 8 | STATE STREET CORP | 1.3M | $218.2M | +2.2% | 3.070% | 0.01% |
| 9 | Baker Avenue Asset Management, LP | 915K | $157.0M | -2.8% | 2.209% | 3.76% |
| 10 | DIMENSIONAL FUND ADVISORS LP | 870K | $149.4M | -0.9% | 2.102% | 0.03% |
| 11 | Quantinno Capital Management LP | 858K | $147.2M | +0.5% | 2.072% | 0.25% |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | 788K | $135.2M | +2.9% | 1.903% | 0.01% |
| 13 | Neuberger Berman Group LLC | 760K | $130.4M | +2.3% | 1.836% | 0.10% |
| 14 | Capital International Investors | 663K | $113.8M | 0.0% | 1.602% | 0.03% |
| 15 | BANK OF MONTREAL /CAN/ | 648K | $111.2M | -4.5% | 1.565% | 0.04% |
| 16 | Conestoga Capital Advisors, LLC | 605K | $103.9M | -28.7% | 1.462% | 2.07% |
| 17 | FIRST TRUST ADVISORS LP | 582K | $99.9M | +6.3% | 1.406% | 0.07% |
| 18 | NORTHERN TRUST CORP | 581K | $99.7M | +2.6% | 1.403% | 0.01% |
| 19 | Maren Capital LLC | 510K | $87.6M | -0.3% | 1.233% | 4.58% |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 507K | $87.0M | +4.3% | 1.224% | 0.01% |
| 21 | FIDUCIARY MANAGEMENT INC /WI/ | 434K | $74.5M | -4.6% | 1.049% | 0.92% |
| 22 | VICTORY CAPITAL MANAGEMENT INC | 424K | $72.7M | +6.5% | 1.023% | 0.05% |
| 23 | GOLDMAN SACHS GROUP INC | 414K | $71.1M | -16.2% | 1.000% | 0.01% |
| 24 | Port Capital LLC | 408K | $70.0M | -0.2% | 0.986% | 3.11% |
| 25 | WELLS FARGO & COMPANY/MN | 398K | $68.3M | -3.4% | 0.961% | 0.01% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in SSD β a direct measure of their conviction.
Filings activity in SSD during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new SSD position in Q1 2026
Institutions that fully closed their SSD position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 449 | +3.5% | 83.65% | +1.24 pp | $6.69B | +1.5% |
| Q4 2025 | 434 | +2.1% | 82.41% | 1.69 pp | $6.59B | 2.0% |
| Q3 2025 | 425 | 0.9% | 84.10% | +3.52 pp | $6.72B | +4.4% |
| Q2 2025 | 429 | +2.6% | 80.58% | +2.27 pp | $6.44B | +2.9% |
| Q1 2025 | 418 | +0.2% | 78.31% | 4.37 pp | $6.26B | 5.3% |
| Q4 2024 | 417 | +2.2% | 82.68% | 16.85 pp | $6.61B | 17% |
| Q3 2024 | 408 | +4.6% | 99.53% | +15.93 pp | $7.96B | +19% |
| Q2 2024 | 390 | β | 83.60% | β | $6.68B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying SSD stock.
Based on Q1 2026 13F filings, institutional ownership of Simpson Manufacturing Co., Inc. stands at 83.7%, held across 449 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of SSD, with approximately 4,031,756 shares worth $0.69B as of Q1 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of SSD.
Our composite Smart Money Score for SSD is 49 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
70 institutions opened new positions in SSD during Q1 2026, while 55 fully exited. 280 added to existing positions and 95 trimmed.
SSD institutional ownership rose by 1.24 percentage points quarter-over-quarter, with a net change of +15 holders.
The top 10 institutions account for 51.6% of all reported 13F value in SSD, and the top 25 account for 73.6%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Simpson Manufacturing Co., Inc. (SSD) Institutional Ownership