Comparable stake leader
VANGUARD PORTFOLIO MANAGEMENT LLC
SEC ownership of SELECTIVE INSURANCE GROUP INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000230557.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
28 Jul 2026
- Public ticker
- SIGI, SIGIP on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
VANGUARD PORTFOLIO MANAGEMENT LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
VANGUARD PORTFOLIO MANAGEMENT LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
28 Jul 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000230557
- Issuer location
- Branchville, NJ
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of SELECTIVE INSURANCE GROUP INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD PORTFOLIO MANAGE...
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
28 Jul 2026
13F
13D/G
3/4/5
Lead comparable stake: 5.9%
13D/G row: VANGUARD PORTFOLIO MANAGEMENT LLC
Showing 1-8 of 50 holder rows.
Quick read
VANGUARD PORTFOLIO MANAGEMENT LLC leads the comparable SEC ownership view at 5.9%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD PORTFOLIO MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
VANGUARD PORTFOLIO MANAGEMENT LLC
5.9%
AQR CAPITAL MANAGEMENT LLC
5.6%
VANGUARD CAPITAL MANAGEMENT LLC
5.2%
FMR LLC
4.2%
John J. Marchioni
0.28%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Portfolio Management
|
5.9%
from 13D/G
|
$339,144,826
3,495,978 shares
|
— | 30 Jun 2026 |
| AQR CAPITAL MANAGEMENT LLC |
13D/G
13F
Company
|
5.6%
|
$327,789,289
3,345,130 shares
|
-$70,005,722 | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Capital Management
|
5.2%
from 13D/G
|
$261,700,288
2,697,663 shares
|
— | 30 Jun 2026 |
| FMR LLC |
13D/G
13F
Company
|
4.2%
|
$199,948,413
2,501,231 shares
|
$0 | 31 Mar 2026 |
| John J. Marchioni |
3/4/5
President and CEO, Director
|
0.28%
|
$13,974,578
167,098 shares
|
— | 06 Feb 2026 |
| Jeffrey F. Kamrowski |
3/4/5
EVP, MUSIC
|
0.13%
|
$7,203,943
79,955 shares
|
— | 06 Feb 2026 |
| John Stephen Scheid |
3/4/5
Director
|
0.05%
|
$2,399,785
31,832 shares
|
— | 01 May 2026 |
| Robert Kelly Doherty |
3/4/5
Director
|
0.05%
|
$2,178,727
28,899 shares
|
— | 01 May 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$1,525,998.
Buys
$256,545
Insiders: 2
Sells
$1,782,543
Insiders: 2
Net
-$1,525,998
Shares: -15,819
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 3,300
Shares: 19,119
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 17,100 | $0 | $1,608,156 | -$1,608,156 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 600 | 2,019 | $50,886 | $174,387 | -$123,501 |
| 9-12 | 2,700 | 0 | $205,659 | $0 | +$205,659 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 28 reporting-owner rows connected to SELECTIVE INSURANCE GROUP INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
28
Largest Forms 3/4/5 holder
William M. Rue
Net 12M change
-$1,525,998
Latest report
28 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| William M. Rue | Director | $37,941,192 | Mixed | 15 Nov 2022 | ||
| Gregory E. Murphy | Director | $17,884,293 | Mixed | 16 Feb 2022 | ||
| John J. Marchioni | President and CEO, Director | $13,974,578 | Mixed | 06 Feb 2026 | ||
| Jeffrey F. Kamrowski | Evp, Music | $7,203,943 | Mixed | 06 Feb 2026 | ||
| J. Brian Thebault | Director | $5,362,913 | Mixed | 05 May 2023 | ||
| John C. Burville | Director | $4,723,518 | Mixed | 06 Feb 2023 | ||
| Mark A. Wilcox | Evp & Cfo | $4,251,363 | Mixed | 03 Feb 2023 | ||
| Philip H. Urban | Director | $3,008,498 | Mixed | 03 May 2024 | ||
| John Stephen Scheid | Director | $2,399,785 | Mixed | 01 May 2026 | ||
| Robert Kelly Doherty | Director | $2,178,727 | Mixed | 01 May 2026 | ||
| Terrence W. Cavanaugh | Director | $2,138,377 | Mixed | 01 May 2026 | ||
| Thomas A. McCarthy | Director | $1,839,880 | Mixed | 01 May 2026 | ||
| Cynthia S. Nicholson | Director | $1,593,524 | Mixed | 01 May 2026 | ||
| Michael H. Lanza | EVP and General Counsel | $1,557,797 | -$1,608,156 | -51% | Filing P/S | 28 Jul 2026 |
| Patrick Sean Brennan | EVP, Chief Financial Officer | $1,367,116 | +$205,659 | +18% | Filing P/S | 24 Oct 2025 |
| Anthony D. Harnett | SVP, Chief Accounting Officer | $1,327,763 | -$174,387 | -12% | Filing P/S | 17 Feb 2026 |
| Joseph O Eppers | EVP, Chief Investment Officer | $1,285,315 | Mixed | 06 Feb 2026 | ||
| Michael J. Morrissey | Director | $1,283,177 | Mixed | 06 Feb 2023 | ||
| Brenda M. Hall | EVP, COO, Standard Lines | $1,259,135 | Mixed | 07 Feb 2025 | ||
| H. Elizabeth Mitchell | Director | $1,211,958 | Mixed | 01 May 2026 |
Recent insider transactions for SELECTIVE INSURANCE GROUP INC
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Michael H. Lanza | SIGI | Common Stock | Sale | -50.8% | $1,608,156 | $94.04 | -17,100 | 16,565 | 28 Jul 2026 | Direct |
| Michael H. Lanza | SIGI | Common Stock | Gift | -3.16% | -1,100 | 33,665 | 28 Jul 2026 | Direct | ||
| Ainar D. Aijala Jr. | SIGI | Common Stock | Award | 19% | 1,767 | 11,065 | 01 May 2026 | Direct | ||
| Julie Parsons | SIGI | Common Stock | Award | 1,767 | 1,767 | 01 May 2026 | Direct | |||
| Thomas A. McCarthy | SIGI | Common Stock | Award | 116.7% | 3,047 | 5,659 | 01 May 2026 | Direct | ||
| Terrence W. Cavanaugh | SIGI | Common Stock | Award | 12% | 3,047 | 28,364 | 01 May 2026 | Direct | ||
| John Stephen Scheid | SIGI | Common Stock | Award | 5.88% | 1,767 | 31,832 | 01 May 2026 | Direct | ||
| Kate Sampson | SIGI | Common Stock | Award | 121.5% | 1,767 | 3,221 | 01 May 2026 | Direct | ||
| Cynthia S. Nicholson | SIGI | Common Stock | Award | 9.12% | 1,767 | 21,137 | 01 May 2026 | Direct | ||
| Robert Kelly Doherty | SIGI | Common Stock | Award | 6.51% | 1,767 | 28,899 | 01 May 2026 | Direct | ||
| H. Elizabeth Mitchell | SIGI | Common Stock | Award | 12.4% | 1,767 | 16,076 | 01 May 2026 | Direct | ||
| Lisa R. Bacus | SIGI | Common Stock | Award | 26% | 1,767 | 8,552 | 01 May 2026 | Direct | ||
| Stephen C. Mills | SIGI | Common Stock | Award | 27% | 1,767 | 8,311 | 01 May 2026 | Direct | ||
| Anthony D. Harnett | SIGI | Common Stock | Sale | -6.54% | $92,914 | $87.32 | -1,064 | 15,205 | 17 Feb 2026 | Direct |
| Jeffrey F. Kamrowski | SIGI | Common Stock | Tax liability | -1.39% | -1,128 | 79,955 | 06 Feb 2026 | Direct | ||
| Jeffrey F. Kamrowski | SIGI | Common Stock | Award | 3.72% | 2,905 | 81,083 | 06 Feb 2026 | Direct | ||
| Joseph O Eppers | SIGI | Common Stock | Tax liability | -6.17% | -938 | 14,265 | 06 Feb 2026 | Direct | ||
| Joseph O Eppers | SIGI | Common Stock | Award | 21.7% | 2,711 | 15,203 | 06 Feb 2026 | Direct | ||
| Anthony D. Harnett | SIGI | Common Stock | Tax liability | -4.19% | -711 | 16,269 | 06 Feb 2026 | Direct | ||
| Anthony D. Harnett | SIGI | Common Stock | Award | 11.7% | 1,775 | 16,980 | 06 Feb 2026 | Direct | ||
| John J. Marchioni | SIGI | Common Stock | Tax liability | -43.6% | -9,452 | 12,234 | 06 Feb 2026 | Direct | ||
| John J. Marchioni | SIGI | Common Stock | Award | 21,686 | 21,686 | 06 Feb 2026 | Direct | |||
| Michael H. Lanza | SIGI | Common Stock | Tax liability | -4.39% | -1,595 | 34,765 | 06 Feb 2026 | Direct | ||
| Michael H. Lanza | SIGI | Common Stock | Award | 13.3% | 4,260 | 36,360 | 06 Feb 2026 | Direct | ||
| Anthony D. Harnett | SIGI | Common Stock | Sale | -5.91% | $81,473 | $85.31 | -955 | 15,205 | 02 Feb 2026 | Direct |
| Lisa R. Bacus | SIGI | Common Stock | Purchase | 9.71% | $50,886 | $84.81 | 600 | 6,778 | 02 Feb 2026 | Direct |
| John J. Marchioni | SIGI | Common Stock | Gift | 10.8% | 15,089 | 154,864 | 25 Nov 2025 | By Trust | ||
| John J. Marchioni | SIGI | Common Stock | Gift | -100% | -15,089 | 0 | 25 Nov 2025 | Direct | ||
| Patrick Sean Brennan | SIGI | Common Stock | Purchase | 17.7% | $205,659 | $76.17 | 2,700 | 17,948 | 24 Oct 2025 | Direct |
* marks a reported price that did not pass the local price check.