Reporting owner · CIK 0001772383
Armstrong Mac
SEC Form 4 history across 1 companies, 8 transactions and 3 filings.
CHAIRCEO and ChairmanPalomar Holdings, Inc.
Open-market transaction mix0% buys0 buys · 8 sales
Available history · Aug 21, 2026 – Oct 21, 2026
Latest insider transactions
Form 4 filings from available history.| Company | Insider | Activity | Disclosed value | Filed (ET) |
|---|---|---|---|---|
PLMRPalomar Holdings, Inc. | Armstrong MacCHAIR | S · saleSEC filing ↗ | -$111kView disclosure → | |
PLMRPalomar Holdings, Inc. | Armstrong MacCHAIR | S · saleSEC filing ↗ | -$216kView disclosure → | |
PLMRPalomar Holdings, Inc. | Armstrong MacCHAIR | S · saleSEC filing ↗ | -$156kView disclosure → | |
PLMRPalomar Holdings, Inc. | Armstrong MacCHAIR | S · saleSEC filing ↗ | -$189kView disclosure → | |
PLMRPalomar Holdings, Inc. | Armstrong MacCHAIR | S · saleSEC filing ↗ | -$282kView disclosure → | |
PLMRPalomar Holdings, Inc. | Armstrong MacCHAIR | S · saleSEC filing ↗ | -$104kView disclosure → | |
PLMRPalomar Holdings, Inc. | Armstrong MacCHAIR | S · saleSEC filing ↗ | -$305kView disclosure → | |
PLMRPalomar Holdings, Inc. | Armstrong MacCHAIR | S · saleSEC filing ↗ | -$47.8kView disclosure → |
Latest Form 4 facts
Quick context from source filings
Latest open-market transaction
sale at Palomar Holdings, Inc. on Oct 21, 2026 valued at $111,397.
Review SEC filingLatest buy
No open-market insider purchase is available.
Monthly open-market activity
Last 3 reported months · purchases and sales
View exact monthly values
| Month | Purchases | Sales | Buy value | Sale value | Net value |
|---|---|---|---|---|---|
| Aug 2026 | 0 | 3 | $0.00 | $457,111.07 | -$457,111.07 |
| Sep 2026 | 0 | 2 | $0.00 | $472,444.56 | -$472,444.56 |
| Oct 2026 | 0 | 3 | $0.00 | $484,097.34 | -$484,097.34 |
Net value is disclosed purchases minus sales, not profit. A dash means the value is unavailable.
Ownership and transaction size
Ownership and ticket size
Average P/S size$176.7K
Median P/S size$173K
Direct0
Indirect8
Oct 21, 2026sale
Filing-only signals
Deterministic matches in this insider's history
Associated companies
Companies in the disclosed reporting history
Open-market buy performance
90-day forward return on this insider's open-market purchases
No open-market purchases in available history
A 90-day purchase return requires an open-market buy. No eligible purchases are recorded in this history.
Disclosed ownership
How reported shareholdings evolved
Non-derivative shares held after reported transactions—not stock prices or a complete portfolio.
8 observations · Aug 21, 2026 – Oct 21, 2026. Window ends at the latest available report, not today.
Selected observation · Oct 21, 2026315,388 shares reported
Inspect transaction View exact observations and source transactions
| Transaction date | Shares held after | Filed | Source |
|---|---|---|---|
| Aug 21, 2026 | 325,519 | Aug 24, 2026 | View transaction |
| Aug 21, 2026 | 323,180 | Aug 24, 2026 | View transaction |
| Aug 21, 2026 | 322,388 | Aug 24, 2026 | View transaction |
| Sep 21, 2026 | 320,288 | Sep 22, 2026 | View transaction |
| Sep 21, 2026 | 318,888 | Sep 22, 2026 | View transaction |
| Oct 21, 2026 | 317,753 | Oct 22, 2026 | View transaction |
| Oct 21, 2026 | 316,188 | Oct 22, 2026 | View transaction |
| Oct 21, 2026 | 315,388 | Oct 22, 2026 | View transaction |
Securities and direct/indirect ownership contexts are kept separate and never summed. Joint filings may associate the same disclosed row with multiple owners. Unknown values are omitted, not treated as zero. Lines connect observations for readability; they do not establish holdings between filings, cost basis, or current ownership. Amendments and stock splits require reviewing the source.
Armstrong Mac Insider Activity FAQ
SEC Form 4 context
Who is Armstrong Mac?
Armstrong Mac is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001772383.
Which companies has Armstrong Mac reported transactions for?
Palomar Holdings, Inc.
When was Armstrong Mac's latest insider buy?
No open-market insider purchase is available for this period.
When was Armstrong Mac's latest insider sale?
sale at Palomar Holdings, Inc. on Oct 21, 2026 valued at $111,397.
Where can I see the original SEC filings?
Each transaction row links directly to the source SEC filing so the reported Form 4 details can be reviewed.
Are performance metrics included?
The profile shows average and median 90-day stock returns after open-market purchases when price coverage is available. These are unadjusted stock returns, not realized trading gains. Win rates, benchmark-adjusted returns and conviction scores are not calculated.