InsiderCEO and Chairman

Mac Armstrong Insider Trading Activity

Every SEC Form 4 transaction reported by Mac Armstrong, sourced directly from SEC EDGAR and updated as new filings are accepted.

By · Insider-trading data from SEC EDGAR
Latest filing:

Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.

Quick Answer

Is Mac Armstrong buying or selling?

Mac Armstrong reported 0 open-market buys ($0) and 74 sells ($68.9M) across 74 Form 4 filings at 1 company — a net selling position of $68.9M.

Source: SEC EDGAR Form 4

What stands out

  • All 74 of Mac Armstrong's Form 4 filings are for one company, Palomar Holdings, Inc. (PLMR).
  • The most recent Form 4 was accepted on Sep 22, 2026 (26 days ago).
  • In the last 12 months: no open-market purchases and 17 sales ($17.2M).
  • The largest open-market sale in the last 12 months was $8.0M of Palomar Holdings, Inc. (PLMR) on Jul 17, 2026. SEC ↗

Key Statistics (as of Sep 22, 2026)

Total Form 4 filings
74
SEC EDGAR
Companies
1
Buys (0)
$0
Sells (74)
$68.9M

Insider sentiment

Net selling

Net insider flow of $68.9M in net selling, filed between Sep 28, 2019 – Sep 22, 2026.

Companies Mac Armstrong files for

#CompanyForm 4 filings
1PLMRPalomar Holdings, Inc.74

Recent Mac Armstrong transactions

DateTickerRoleTypeSharesValueFiling
Sep 22, 2026PLMRCEO and ChairmanSale3.5K$472.4KSEC ↗
Aug 24, 2026PLMRCEO and ChairmanSale3.5K$457.1KSEC ↗
Jul 22, 2026PLMRCEO and ChairmanSale3.5K$480.4KSEC ↗
Jul 17, 2026PLMRCEO and ChairmanSale60.7K$8.0MSEC ↗
Jun 24, 2026PLMRCEO and ChairmanSale3.5K$395.4KSEC ↗
May 22, 2026PLMRCEO and ChairmanSale3.5K$400.4KSEC ↗
Apr 22, 2026PLMRCEO and ChairmanSale3.5K$457.7KSEC ↗
Apr 17, 2026PLMRCEO and ChairmanSale3.2K$413.9KSEC ↗
Mar 25, 2026PLMRCEO and ChairmanSale3.5K$422.0KSEC ↗
Feb 13, 2026PLMRCEO and ChairmanSale5.0K$613.0KSEC ↗
Feb 3, 2026PLMRCEO and ChairmanSale7.6K$927.4KSEC ↗
Jan 30, 2026PLMRCEO and ChairmanSale11.5K$1.4MSEC ↗
Jan 22, 2026PLMRCEO and ChairmanSale5.0K$645.0KSEC ↗
Jan 20, 2026PLMRCEO and ChairmanSale2.3K$300.3KSEC ↗
Dec 23, 2025PLMRCEO and ChairmanSale5.0K$681.1KSEC ↗
Nov 24, 2025PLMRCEO and ChairmanSale5.0K$614.3KSEC ↗
Oct 22, 2025PLMRCEO and ChairmanSale5.0K$576.5KSEC ↗
Oct 17, 2025PLMRCEO and ChairmanSale3.2K$373.6KSEC ↗
Sep 24, 2025PLMRCEO and ChairmanSale5.0K$580.1KSEC ↗
Aug 21, 2025PLMRCEO and ChairmanSale5.0K$632.8KSEC ↗
Jul 22, 2025PLMRCEO and ChairmanSale5.0K$700.5KSEC ↗
Jul 17, 2025PLMRCEO and ChairmanSale3.2K$456.6KSEC ↗
Jun 25, 2025PLMRCEO and ChairmanSale5.0K$790.7KSEC ↗
May 22, 2025PLMRCEO and ChairmanSale5.0K$809.8KSEC ↗
Apr 23, 2025PLMRCEO and ChairmanSale5.0K$727.0KSEC ↗

Showing the 25 most recent filings of 74. Screen every filing.

Mac Armstrong insider trading FAQ

Is Mac Armstrong buying or selling?

Across 74 SEC Form 4 filings, Mac Armstrong reported 0 open-market purchases totaling $0 and 74 sales totaling $68.9M — a net selling position of $68.9M.

Which companies does Mac Armstrong file Form 4s for?

Mac Armstrong has reported insider transactions at 1 company, most often Palomar Holdings, Inc. (PLMR).

How far back does Mac Armstrong's filing history go?

Trabud holds Mac Armstrong's SEC Form 4 filings from Sep 28, 2019 – Sep 22, 2026, sourced directly from SEC EDGAR.

Where does Trabud get Mac Armstrong's insider trading data?

Directly from SEC EDGAR Form 4 filings. Every transaction on this page is a real filing accepted by the SEC, updated as new filings arrive.

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