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Home/Insiders/Armstrong Mac

Armstrong Mac

Officer

Officer
Total trades
72
Bought (open market)
$0
Sold (open market)
$19.5M
Tickers traded
1
Armstrong Mac, CEO and Chairman, has demonstrated a consistent selling bias in recent months, exclusively divesting shares of Palomar Holdings, Inc. (PLMR) across multiple transactions totaling approximately $3.6 million since late January 2026. The most significant single sale occurred on January 28, 2026, when Mac disposed of shares worth $1.38 million, followed by two additional sales exceeding $300,000 each on January 29. Activity intensified in February and March, with Mac executing a cluster of smaller transactions ranging from $12,614 to $161,712 on February 12 and four additional sales between $47,333 and $195,898 on March 23. This pattern extends Mac’s long-term disposition trend, with SEC filings showing 53 historical sales totaling $8.9 million in PLMR shares and zero recorded purchases. The recent transactions—20 sales in under three months—suggest an accelerated pace of divestment compared to historical activity. While the filings include several $0-value transactions marked as "M" (derivative) or "A" (acquisition) codes, all monetized activity reflects open-market sales. The absence of any buying activity across Mac’s entire filing history indicates a singular focus on reducing PLMR exposure rather than rebalancing or diversifying holdings.

AI-assisted summary

12-month activity

Monthly buy vs sell totals from Armstrong Mac's Form 4 filings.

BuysSells
Show data table
MonthBuysSellsFilings
October 2025$0$950K5
November 2025$0$614K5
December 2025$0$681K4
January 2026$0$3.2M15
February 2026$0$613K8
March 2026$0$422K4
April 2026$0$872K5
May 2026$0$400K2
June 2026$0$395K2
July 2026$0$8.5M8
August 2026$0$457K3
September 2026$0$00

Recent trades

Most recent Form 4 filings by Armstrong Mac.

  • Armstrong Macsold792 shares ofPLMRat $131.368$104KAug 21 · filed Aug 24Details
  • Armstrong Macsold2,339 shares ofPLMRat $130.494$305KAug 21 · filed Aug 24Details
  • Armstrong Macsold369 shares ofPLMRat $129.651$48KAug 21 · filed Aug 24Details

Explore insider screeners

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  • Armstrong Macsold200 shares ofPLMRat $139.43$28KJul 21 · filed Jul 22Details
  • Armstrong Macsold260 shares ofPLMRat $138.466$36KJul 21 · filed Jul 22Details
  • Armstrong Macsold937 shares ofPLMRat $137.738$129KJul 21 · filed Jul 22Details
  • Armstrong Macsold2,103 shares ofPLMRat $136.698$287KJul 21 · filed Jul 22Details
  • Armstrong Macsold57,544 shares ofPLMRat $131.66$7.6MJul 15 · filed Jul 17Details
  • Armstrong Macexercised6,250 shares ofPLMRat $0Jul 15 · filed Jul 17Details
  • Armstrong Macsold3,197 shares ofPLMRat $131.66$421KJul 15 · filed Jul 17Details
  • Armstrong Macexercised112,500 shares ofPLMRat $0Jul 15 · filed Jul 17Details
  • Armstrong Macsold1,495 shares ofPLMRat $113.278$169KJun 22 · filed Jun 24Details
  • Armstrong Macsold2,005 shares ofPLMRat $112.72$226KJun 22 · filed Jun 24Details
  • Armstrong Macsold2,172 shares ofPLMRat $114.669$249KMay 21 · filed May 22Details
  • Armstrong Macsold1,328 shares ofPLMRat $113.931$151KMay 21 · filed May 22Details
  • Armstrong Macsold1,622 shares ofPLMRat $129.905$211KApr 21 · filed Apr 22Details
  • Armstrong Macsold678 shares ofPLMRat $131.111$89KApr 21 · filed Apr 22Details
  • Armstrong Macsold1,200 shares ofPLMRat $131.733$158KApr 21 · filed Apr 22Details
  • Armstrong Macsold3,197 shares ofPLMRat $129.46$414KApr 15 · filed Apr 17Details
  • Armstrong Macexercised6,250 shares ofPLMRat $0Apr 15 · filed Apr 17Details
  • View all 72 trades →