SEC ownership of COMPX INTERNATIONAL INC

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001049606.

Comparable stake leader

CONTRAN CORP

Disclosed value leader

CONTRAN CORP

Comparable rows

0/27

Latest evidence

30 Jun 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 1 signal
Latest parsed ownership date
30 Jun 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001049606
Issuer location
Dallas, TX

Ownership snapshot

Top shareholders of COMPX INTERNATIONAL INC (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
CONTRAN CORP
Disclosed value leader
CONTRAN CORP
Comparable rows
0/27
Latest evidence
30 Jun 2026
3/4/5 13F Highest disclosed value: $232,310,246 27 rows are not safely comparable across share classes. Showing 1-8 of 27 holder rows.

Quick read

CONTRAN CORP has the largest disclosed position value at $232.31M.

0 of 27 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens CONTRAN CORP's linked filing trail.
Disclosed position value Top 5
CONTRAN CORP $232.31M
BlackRock, Inc. $3.06M
STATE STREET CORP $761.1K
Loretta J. Feehan $564.7K
Thomas E. Barry $491.1K

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-8 of 27 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
CONTRAN CORP
3/4/5
10%+ Owner
class O/S missing
$232,310,246
10,755,104 shares
01 Jun 2022
BlackRock, Inc.
13F
Company
13F
class O/S missing
$3,063,098
123,016 shares
30 Jun 2026
STATE STREET CORP
13F
Company
13F
class O/S missing
$761,143
30,568 shares
30 Jun 2026
Loretta J. Feehan
3/4/5
Director
mixed-class rows
$564,664
25,050 shares
mixed-class rows
20 May 2026
Thomas E. Barry
3/4/5
Director
mixed-class rows
$491,096
21,750 shares
mixed-class rows
20 May 2026
MANIX ANN
3/4/5
Director
mixed-class rows
$409,044
18,100 shares
mixed-class rows
20 May 2026
Terri L. Herrington
3/4/5
Director
mixed-class rows
$401,176
17,750 shares
mixed-class rows
20 May 2026
Mary A. Tidlund
3/4/5
Director
mixed-class rows
$376,056
16,750 shares
mixed-class rows
20 May 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 15 Aug 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-17 of 17 reporting-owner rows connected to COMPX INTERNATIONAL INC. Open a relationship link for the CIK-to-CIK filing trail.

Rows
17
Largest Forms 3/4/5 holder
CONTRAN CORP
Net 12M change
$0
Latest report
20 May 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
CONTRAN CORP 10%+ Owner $232,310,246 Mixed 01 Jun 2022
Loretta J. Feehan Director $564,664 Mixed 20 May 2026
Thomas E. Barry Director $491,096 Mixed 20 May 2026
MANIX ANN Director $409,044 Mixed 20 May 2026
Terri L. Herrington Director $401,176 Mixed 20 May 2026
Mary A. Tidlund Director $376,056 Mixed 20 May 2026
Kevin B. Kramer Director $146,659 Mixed 25 May 2023
Gina A. Norris Director $93,200 Mixed 20 May 2026
Executive Andrew B. Nace Executive Vice President $53,106 Filing P/S 25 May 2023
Senior Bryan A. Hanley Senior VP and Treasurer $50,625 Filing P/S 11 Mar 2025
Scott C. James President and CEO, Director $39,712 Mixed 20 May 2026
Michael Shawn Simmons Vice Chairman of the Board, Director $39,712 Mixed 20 May 2026
Executive Amy A. Samford Executive VP and CFO $21,600 Mixed 06 Dec 2022
Executive Kristin B. McCoy EVP, Tax Mixed 24 May 2023
Bart W. Reichert Vice President, Internal Audit Mixed 03 Nov 2021
Erica A. Austin Senior VP, Employee Benefits Mixed 21 May 2025
Executive John A. Sunny Executive VP Mixed 22 May 2024

Recent insider transactions for COMPX INTERNATIONAL INC

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Scott C. James CIX Class A Common Stock $0.01 par value per share Award 1,700 1,700 20 May 2026 Direct
Michael Shawn Simmons CIX Class A Common Stock $0.01 par value per share Award 1,700 1,700 20 May 2026 Direct
Mary A. Tidlund CIX Class A Common Stock $0.01 par value per share Award 26.6% 1,700 8,100 20 May 2026 Direct
Gina A. Norris CIX Class A Common Stock $0.01 par value per share Award 109.7% 1,700 3,250 20 May 2026 Direct
Manix Ann CIX Class A Common Stock $0.01 par value per share Award 19.8% 1,700 10,275 20 May 2026 Direct
Terri L. Herrington CIX Class A Common Stock $0.01 par value per share Award 20.2% 1,700 10,100 20 May 2026 Direct
Loretta J. Feehan CIX Class A Common Stock $0.01 par value per share Award 14.5% 1,700 13,400 20 May 2026 Direct
Thomas E. Barry CIX Class A Common Stock $0.01 par value per share Award 16.4% 1,700 12,100 20 May 2026 Direct
* marks a reported price that did not pass the local price check.
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