Massivemarkets

SEC Form 4

Selective Insurance Group (SIGI) insider trading

In the 12 months to Oct 24, 2026, 2 SIGI insiders reported open-market sales of $1.8M across 3 filings; 2 insiders bought $256.5K.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$1.8M
3 filings · 2 insiders
Open-market purchases
$256.5K
2 filings

Who traded SIGI, and when

  • Purchase
  • Sale

SIGI daily close from Oct 24, 2025 to Oct 23, 2026, between $73.72 and $100.15, last $96.61. 3 sale and 2 purchase filings by 4 insiders, marked at their filing dates. Michael H. Lanza, EVP and General Counsel: sold $1.6M across 1 filing, first filed Jul 29, 2026, last Jul 29, 2026. Patrick Sean Brennan, EVP, Chief Financial Officer: bought $205.7K across 1 filing, first filed Oct 27, 2025, last Oct 27, 2025. Anthony D. Harnett, SVP, Chief Accounting Officer: sold $174.4K across 2 filings, first filed Feb 3, 2026, last Feb 17, 2026. Lisa R. Bacus, Director: bought $50.9K across 1 filing, first filed Feb 3, 2026, last Feb 3, 2026.

Largest mark · tap a row for others

Michael H. Lanza · EVP and General Counsel

Sale $1,608,156

17,100 shares at $94.04 avg

Filed Jul 29, 2026 · traded Jul 28

Close on filing date $96.68

SIGI daily closelast $96.61

Michael H. Lanza · EVP and General Counsel

$1.6M sold

Patrick Sean Brennan · EVP, Chief Financial Officer

$205.7K bought

Anthony D. Harnett · SVP, Chief Accounting Officer

$174.4K sold

Lisa R. Bacus · Director

$50.9K bought
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has Selective Insurance Group's CEO sold stock?

No. John J. Marchioni (CEO) made no open-market sales filed as CEO in the last 12 months.

Open-market trades

5 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Michael H. LanzaEVP and General Counsel$1.6M—1—
Patrick Sean BrennanEVP, Chief Financial Officer—$205.7K1—
Anthony D. HarnettSVP, Chief Accounting Officer$174.4K—2—
Lisa R. BacusDirector—$50.9K1—
Other insider activity (not market trades) · 24 records
  • Tax withholding5 records
  • Grants and awards16 records
  • Gifts3 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

Build this yourself

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Agent prompt

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for SIGI every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.