Lantronix, Inc.
Lantronix, Inc. (LTRX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · LTRX · as of Sep 30, 2025
Ownership Breakdown
70
Institutional Holders
▲ 20 vs Q2
$57.26M
Total Inst. Value
▲ $28.92M vs Q2
39.82M
Shares Outstanding
freeFloat 85.47%
12.53M
13F Shares Held
▲ 2.66M 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
LTRX largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
HEARTLAND ADVISORS INC computer communications equipment | 1.60M | 4.11% | 4.11% | $7.31B | Nov 7, 2025 | ▼ 330.0K |
VANGUARD GROUP INC computer communications equipment | 1.49M | 3.81% | 3.81% | $6.79B | Nov 7, 2025 | ▲ 40.9K |
DIMENSIONAL FUND ADVISORS LP computer communications equipment | 1.40M | 3.58% | 3.58% | $6.38B | Nov 12, 2025 | ▼ 187.7K |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP computer communications equipment | 669.2K | 1.72% | 1.72% | $3.06B | Nov 13, 2025 | ▲ 385.1K |
RENAISSANCE TECHNOLOGIES LLC computer communications equipment | 634.5K | 1.63% | 1.63% | $2.90B | Nov 13, 2025 | ▲ 4.8K |
MARSHALL WACE, LLP computer communications equipment | 619.1K | 1.59% | 1.59% | $2.83B | Nov 13, 2025 | ▲ 172.9K |
DEUTSCHE BANK AG\ computer communications equipment | 530.4K | 1.36% | 1.36% | $2.42B | Nov 13, 2025 | — held |
SOVIERO ASSET MANAGEMENT, LP computer communications equipment | 510.0K | 1.31% | 1.31% | $2.33B | Nov 14, 2025 | NEW |
HERALD INVESTMENT MANAGEMENT LTD computer communications equipment | 400.0K | 1.03% | 1.03% | $1.82B | Nov 7, 2025 | NEW |
GEODE CAPITAL MANAGEMENT, LLC computer communications equipment | 361.6K | 92.77% | 92.77% | $1.65B | Nov 12, 2025 | ▲ 5.4K |
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
20
Increased
+2.11M shares14
New Positions
first time holders12
Decreased
−919.2K shares0
Sold Out
fully exitedNet shares change (top 50)
+1.19M
+2.11M / −919.2K
Net new holders
+22
14 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
LTRX insider trading · insider activity
Source: SEC Form 4
16
Buy transactions
12
Sell transactions
1.33
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 |
|---|---|---|---|---|---|---|---|
Stringham Brent Michael Chief Financial Officer | Jun 1, 2026 | Tax Withhold | 1,466 | $7.58 | $11.1K | 92.6K | Form 4 ↗ |
Awsare Saleel President & CEO | Jun 1, 2026 | Award | 5,824 | — | — | 384.8K | Form 4 ↗ |
Awsare Saleel President & CEO | Jun 1, 2026 | Tax Withhold | 3,124 | $7.58 | $23.7K | 381.7K | Form 4 ↗ |
Hoff Kurt W Chief Revenue Officer | Jun 1, 2026 | Tax Withhold | 3,952 | $7.58 | $30.0K | 48.8K | Form 4 ↗ |
Gurusamy Mathi Chief Product & Strategy Ofcr | Jun 1, 2026 | Tax Withhold | 4,057 | $7.58 | $30.8K | 62.8K | 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
Lantronix, Inc. (LTRX) is primarily owned by institutional investors, who hold approximately 31.5% of total shares outstanding. Company insiders own approximately 14.53%, while retail and public investors account for the remaining 54.00%.
The largest institutional shareholder of Lantronix, Inc. is HEARTLAND ADVISORS INC, holding approximately 1.60 million shares — equal to 4.11% of outstanding shares — as of September 30, 2025.
A total of 70 institutional investors currently hold LTRX stock, with a combined institutional value of approximately $57,261,940 as of the most recent 13F filing period.
Frequently asked questions
LTRX ownershipLantronix, Inc. (LTRX) is primarily owned by institutional investors, who hold approximately 31.5% of shares. The largest shareholder is HEARTLAND ADVISORS INC with a 4.11% stake. Company insiders hold 14.53%. Data sourced from SEC Form 13F as of September 30, 2025.