Mobix Labs, Inc.
Mobix Labs, Inc. (MOBX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MOBX · as of Mar 31, 2025
Ownership Breakdown
24
Institutional Holders
▼ 2 vs Q4
$3.34M
Total Inst. Value
▼ $261,713 vs Q4
6.61M
Shares Outstanding
freeFloat 48.96%
3.75M
13F Shares Held
▲ 1.63M vs Q4
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
MOBX largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
COLONY GROUP, LLC blank checks | 1.64M | 4.28% | 4.28% | $1.47B | May 20, 2025 | ▲ 642.9K |
VANGUARD CAPITAL WEALTH ADVISORS blank checks | 788.6K | 2.05% | 2.05% | $704.08M | Apr 11, 2025 | ▲ 758.6K |
VANGUARD GROUP INC blank checks | 545.7K | 1.42% | 1.42% | $487.29M | May 9, 2025 | ▲ 530.2K |
GEODE CAPITAL MANAGEMENT, LLC blank checks | 293.5K | 76.37% | 76.37% | $262.12M | May 13, 2025 | ▲ 56.6K |
STATE STREET CORP blank checks | 75.8K | 19.73% | 19.73% | $67.67M | May 15, 2025 | — held |
MORGAN STANLEY blank checks | 69.8K | 18.17% | 18.17% | $62.35M | May 15, 2025 | ▼ 179 |
MARINER, LLC blank checks | 65.5K | 17.03% | 17.03% | $58.44M | May 15, 2025 | — held |
FINANCIAL MANAGEMENT NETWORK INC blank checks | 52.2K | 13.58% | 13.58% | $41.08M | May 7, 2025 | — held |
NORTHERN TRUST CORP blank checks | 43.9K | 11.41% | 11.41% | $39.15M | May 13, 2025 | — held |
UBS GROUP AG blank checks | 37.5K | 9.77% | 9.77% | $33.53M | May 13, 2025 | ▼ 29.1K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
10
Increased
+2.04M shares2
New Positions
first time holders4
Decreased
−32.0K shares6
Sold Out
fully exitedNet shares change (top 50)
+2.01M
+2.04M / −32.0K
Net new holders
+2
2 new / 6 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MOBX insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
2
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 |
|---|---|---|---|---|---|---|---|
LONG MICHAEL J director | Mar 30, 2026 | Award | 5,000 | — | — | 124.9K | Form 4 ↗ |
LONG MICHAEL J director | Feb 25, 2026 | Award | 14,805 | — | — | 119.9K | Form 4 ↗ |
Busch Kurt director | Mar 30, 2026 | Award | 5,000 | — | — | 61.0K | Form 4 ↗ |
Busch Kurt director | Feb 25, 2026 | Award | 14,805 | — | — | 56.0K | Form 4 ↗ |
Peterson James J
| Mar 30, 2026 | Award | 5,000 | — | — | 325.5K | Form 4 ↗ |
Peterson James J
| Feb 25, 2026 | Award | 14,805 | — | — | 320.5K | Form 4 ↗ |
Goerner Frederick C director | Mar 30, 2026 | Award | 5,000 | — | — | 172.1K | Form 4 ↗ |
Goerner Frederick C director | Feb 25, 2026 | Award | 14,805 | — | — | 167.1K | Form 4 ↗ |
ALDRICH DAVID J director | Mar 30, 2026 | Award | 5,000 | — | — | 52.7K | Form 4 ↗ |
ALDRICH DAVID J director | Feb 25, 2026 | Award | 14,805 | — | — | 47.7K | 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
Mobix Labs, Inc. (MOBX) is primarily owned by institutional investors, who hold approximately 56.8% of total shares outstanding. Company insiders own approximately 51.04%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Mobix Labs, Inc. is COLONY GROUP, LLC, holding approximately 1.64 million shares — equal to 4.28% of outstanding shares — as of March 31, 2025.
A total of 24 institutional investors currently hold MOBX stock, with a combined institutional value of approximately $3,343,661 as of the most recent 13F filing period.
Frequently asked questions
MOBX ownershipMobix Labs, Inc. (MOBX) is primarily owned by institutional investors, who hold approximately 56.8% of shares. The largest shareholder is COLONY GROUP, LLC with a 4.28% stake. Company insiders hold 51.04%. Data sourced from SEC Form 13F as of March 31, 2025.