CompX International Inc.
CompX International Inc. (CIX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · CIX · as of Sep 30, 2025
Ownership Breakdown
45
Institutional Holders
▲ 2 vs Q2
$20.63M
Total Inst. Value
▼ $4.11M vs Q2
12.32M
Shares Outstanding
freeFloat 12.21%
881,418
13F Shares Held
▼ 49,415 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
CIX largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
DIMENSIONAL FUND ADVISORS LP cutlery, handtools & general hardware | 180.8K | 1.47% | 1.47% | $4.23B | Nov 12, 2025 | ▼ 1.2K |
ROYCE & ASSOCIATES LP cutlery, handtools & general hardware | 166.1K | 1.35% | 1.35% | $3.89B | Nov 12, 2025 | ▼ 17.1K |
RENAISSANCE TECHNOLOGIES LLC cutlery, handtools & general hardware | 120.1K | 97.52% | 97.52% | $2.81B | Nov 13, 2025 | ▼ 1.1K |
BLACKROCK, INC. cutlery, handtools & general hardware | 101.9K | 82.69% | 82.69% | $2.38B | Nov 12, 2025 | ▼ 1.4K |
VANGUARD GROUP INC cutlery, handtools & general hardware | 95.4K | 77.43% | 77.43% | $2.23B | Nov 7, 2025 | ▲ 1.3K |
BANK OF NEW YORK MELLON CORP cutlery, handtools & general hardware | 59.9K | 48.58% | 48.58% | $1.40B | Nov 3, 2025 | ▼ 1.4K |
GEODE CAPITAL MANAGEMENT, LLC cutlery, handtools & general hardware | 35.9K | 29.12% | 29.12% | $839.58M | Nov 12, 2025 | ▼ 14 |
STATE STREET CORP cutlery, handtools & general hardware | 31.5K | 25.59% | 25.59% | $737.71M | Nov 14, 2025 | ▼ 86 |
BRIDGEWAY CAPITAL MANAGEMENT, LLC cutlery, handtools & general hardware | 23.2K | 18.87% | 18.87% | $543.96M | Nov 14, 2025 | ▼ 5.0K |
NORTHERN TRUST CORP cutlery, handtools & general hardware | 18.1K | 14.69% | 14.69% | $423.56M | Nov 14, 2025 | ▼ 538 |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
10
Increased
+5.9K shares4
New Positions
first time holders22
Decreased
−58.3K shares2
Sold Out
fully exitedNet shares change (top 50)
52.4K
+5.9K / −58.3K
Net new holders
-10
4 new / 2 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
CIX insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
8
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
JAMES SCOTT C President and CEO | May 20, 2026 | Award | 1,700 | $23.44 | $39.8K | 1.7K | Form 4 ↗ |
Simmons Michael Shawn Vice Chairman of the Board | May 20, 2026 | Award | 1,700 | $23.44 | $39.8K | 1.7K | Form 4 ↗ |
Tidlund Mary A. director | May 20, 2026 | Award | 1,700 | $23.44 | $39.8K | 8.1K | Form 4 ↗ |
Norris Gina A. director | May 20, 2026 | Award | 1,700 | $23.44 | $39.8K | 3.3K | Form 4 ↗ |
MANIX ANN director | May 20, 2026 | Award | 1,700 | $23.44 | $39.8K | 10.3K | Form 4 ↗ |
Herrington Terri director | May 20, 2026 | Award | 1,700 | $23.44 | $39.8K | 10.1K | Form 4 ↗ |
Feehan Loretta J. director | May 20, 2026 | Award | 1,700 | $23.44 | $39.8K | 13.4K | Form 4 ↗ |
BARRY THOMAS E director | May 20, 2026 | Award | 1,700 | $23.44 | $39.8K | 12.1K | Form 4 ↗ |
BARRY THOMAS E director | May 21, 2025 | Award | 750 | $25.99 | $19.5K | 10.4K | Form 4 ↗ |
Feehan Loretta J. director | May 21, 2025 | Award | 750 | $25.99 | $19.5K | 11.7K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
CompX International Inc. (CIX) is primarily owned by institutional investors, who hold approximately 7.2% of total shares outstanding. Company insiders own approximately 87.79%, while retail and public investors account for the remaining 5.05%.
The largest institutional shareholder of CompX International Inc. is DIMENSIONAL FUND ADVISORS LP, holding approximately 180,813 shares — equal to 1.47% of outstanding shares — as of September 30, 2025.
A total of 45 institutional investors currently hold CIX stock, with a combined institutional value of approximately $20,625,790 as of the most recent 13F filing period.
Frequently asked questions
CIX ownershipCompX International Inc. (CIX) is primarily owned by institutional investors, who hold approximately 7.2% of shares. The largest shareholder is DIMENSIONAL FUND ADVISORS LP with a 1.47% stake. Company insiders hold 87.79%. Data sourced from SEC Form 13F as of September 30, 2025.