Selective Insurance Group, Inc.
Ownership
Ownership Structure
Who owns Selective Insurance Group, Inc. (SIGI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 92.6% of the shares are freely tradable; institutional investors hold 87.7%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 13.06 | 7,778,138 | +3.7 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 5.87 | 3,495,978 | +1.1 | 06/30/2026 |
| AQR Capital Management LLC | 5.62 | 3,345,130 | -15.0 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.53 | 2,697,663 | +0.6 | 06/30/2026 |
| State Street Corp | 4.12 | 2,451,382 | +5.4 | 06/30/2026 |
| American Century Companies Inc | 3.74 | 2,228,969 | +75.9 | 06/30/2026 |
| FMR Inc | 3.26 | 1,941,671 | -22.4 | 06/30/2026 |
| Geode Capital Management, LLC | 3.06 | 1,825,150 | +6.8 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 3.56 | 2,119,700 | +0.0 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.21 | 1,913,089 | +0.3 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Nicholson Cynthia S | Director | 17,463 | 1,756,779 $ | Oct 26, 2026 | direct |
| Lanza Michael H | EVP and General Counsel | 16,565 | 1,666,391 $ | Jul 28, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 26, 2026 | Nicholson Cynthia S | Director | Sell | 3,691 | 98.71 | 364,342 |
| Jul 28, 2026 | Lanza Michael H | EVP and General Counsel | Sell | 17,100 | 94.04 | 1,608,156 |
| Jul 28, 2026 | Lanza Michael H | EVP and General Counsel | Other | 1,100 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 3, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.