Karman Holdings Inc (KRMN) insider trading
Recent insider transactions reported to the SEC on Form 4 — directors and officers buying or selling their own company’s stock. Sourced directly from public SEC filings, latest filed Sep 18, 2026.
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- Filings shown
- 8
- Open-market buys
- 3
- Open-market sells
- 0
- Buys, 10b5-1 box not checked
- 3 of 3
Counts cover the 8 most recent Form 4 filings Tradune holds for KRMN (filed May 26 – Sep 18, 2026); the score below covers only the trailing 90 days (3 buys, 0 sells). No completed check of KRMN's Form 4 list on SEC EDGAR is on record yet; the latest KRMN filing Tradune holds was filed Sep 18, 2026. This is not guaranteed to be the complete record — see KRMN's full Form 4 filing history on SEC EDGAR.
Open-market activity, last 90 days
Purchases (Form 4 code P) and sales (code S) on the 4 filings Tradune holds for KRMN filed Sep 15 – Sep 18, 2026. Grants, exercises, tax withholding and the other Form 4 transaction codes are left out.
| Insider | Buys | Sells | Shares bought | Shares sold | Value |
|---|---|---|---|---|---|
| David StinnettDirector | 1 | 0 | 27,000 | — | +$1,007,648 |
| Mary D. PetryszynDirector | 1 | 0 | 500 | — | +$18,720 |
| Stephen TwittyDirector | 1 | 0 | 275 | — | +$10,117 |
Value = shares × the price reported on each Form 4 (+ purchases, − sales); every open-market line in this window disclosed a price.
Summarises ~90 days of public SEC Form 4 activity — more distinct buyers, officer involvement and net buying score higher. A description of filing activity, not a rating or buy signal. How this score is computed →
Weekly signal history
KRMN appeared in 2 archived weekly editions as a multi-insider cluster, a top net buyer, or both. These are frozen weekly snapshots, not a complete filing history.
- Week of Oct 7, 2026 3 insiders buying · $1,036,485 net
- Week of Sep 30, 2026 3 insiders buying · $1,036,485 net
An entry means this company met that edition’s displayed cluster or top-buyer threshold. Missing weeks do not mean no insider transaction occurred. All figures are derived from SEC Form 4 filings; open-market buys minus sales are shown as net only when every transaction value was disclosed.
How to read this: an open-market purchase (Form 4 code P) is a buy at the market price with the insider’s own money, as opposed to a grant, award or option exercise; an open-market sale is code S. When two or more distinct insiders report open-market purchases in the same 90-day window, this site labels that a cluster — a definition, not a forecast; see insider cluster buying. “Held after” is Form 4 Table I column 5; “Change” = shares ÷ holdings before the trade (held after − shares for an acquisition, held after + shares for a disposition).
Insider Buying at KRMN
Insiders reported 3 open-market purchases of KRMN between May 26, 2026 and Sep 18, 2026, across 3 distinct buyers. The most recent purchase was reported by Stephen Twitty (Director) on Sep 16, 2026. Grants, option exercises, and tax-withholding transactions are excluded from these counts.
Recent Form 4 filings
Source: SEC EDGAR Form 4 · transaction codes explained
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market purchase 10b5-1 box not checked | 27,000 | $37.32 | 3,530,395 | +0.8% | Sep 16, 2026 |
† change in this filer’s own reported holding line (Form 4 Table I, col. 5), not of total company ownership; small prior holdings produce large percentages, so under 100 shares the prior holding is shown instead.
“10b5-1 box checked” = the filer checked the Form 4 box stating that a transaction on the filing was made under a plan intended to satisfy Rule 10b5-1(c); “10b5-1 box not checked” = the box was left blank, which does not prove that no plan exists. The box applies to Form 4s filed from April 1, 2023; older filings, and boxes we could not read, carry no tag. What the 10b5-1 box means.
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market purchase 10b5-1 box not checked | 500 | $37.44 | 2,863 | +21% | Sep 16, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market purchase 10b5-1 box not checked | 275 | $36.79 | 2,638 | +12% | Sep 16, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Grant / award | 11,358 | — | 11,358 | — | Sep 14, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Grant / award | 689 | — | 505,628 | +0.1% | May 21, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Grant / award | 2,294 | — | 2,294 | — | May 21, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Grant / award | 689 | — | 689 | — | May 21, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Grant / award | 2,363 | — | 2,363 | — | May 21, 2026 |
Insider filings reported around the same time
Other companies whose most recent Form 4 was filed closest to KRMN's (Sep 18, 2026).
Frequently asked about KRMN insider activity
How many insiders bought KRMN stock in these Form 4 filings?
3 distinct insiders at Karman Holdings Inc reported 3 open-market purchases (Form 4 code P) of KRMN shares between May 26, 2026 and Sep 18, 2026, the most recent filed by Stephen Twitty (Director) on Sep 16, 2026. Grants, option exercises, and tax-withholding transactions are excluded from these counts.
Who filed the most recent Form 4 for KRMN?
The most recent Form 4 on this page was filed by Stephen Twitty (Director) on Sep 18, 2026, reporting 1 transaction. The original document is linked from the filing list above on SEC EDGAR. Amended filings (Form 4/A) may later revise reported figures.
What was the largest open-market KRMN insider purchase shown?
The largest open-market purchase among the filings shown was 27,000 KRMN shares at $37.32 (about $1,007,648) by David Stinnett (Director) on Sep 16, 2026. Value is shares × the price reported on the Form 4; its Rule 10b5-1 box is not checked.
Do the recent KRMN insider purchases have the Form 4 10b5-1 box checked?
No. All 3 KRMN open-market purchases shown were reported with the Rule 10b5-1 box not checked. A blank box records what the filer disclosed; it does not prove that no plan exists. Latest: Stephen Twitty (Director) on Sep 16, 2026, 275 shares.
New to Form 4s? The transaction codes, the 90-day window and the 0–100 score are defined on the insider-activity score methodology page.
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Track KRMN insider filings free →This score summarizes SEC Form 4 filing activity over the trailing 90 days. It is descriptive, not predictive — not a rating, recommendation, or investment advice. Data: SEC EDGAR (public domain), as filed; amendments may revise figures. Tradune is not a registered investment adviser.
Data as filed; amended filings (Form 4/A) may revise figures. Sales may occur under prearranged Rule 10b5-1 trading plans.