Mobix Labs, Inc (MOBX) shareholders
MOBXNasdaqSemiconductors & Related DevicesFiscal year ends September 30Also trades as MOBXW
Financials through Q3 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 18, 2026Score 5/3077% below fair value
$0.51−0.09 (-14.88%)
Close on Nov 13, 2026Market cap $8.61MP/E –Yield –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
1M
Shares held, 13F filers
Institutional holders
25
23 new, 0 sold out
Net institutional buying
1M
In Q2 2026
Insider trades, 12 months
0 buys · 9 sales
Net sold $399.23K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Armistice Capital, LLC Joint filing with Steven Boyd (8.40%) | 4,596,804 | 8.40% | 13G (passive) | Sep 30, 2025 |
| James J. Peterson | 3,854,120 | 13.90% | 13D (active) | Dec 21, 2023 |
| Keyvan Samini | 3,316,733 | 5.60% | 13D (active) | May 5, 2025 |
| Sage Hill Investors, LLC Joint filing with Vernon Davis Grizzard III (6.30%) | 3,142,857 | 6.30% | 13G (passive) amendment | Sep 30, 2025 |
| Jiong Ma Joint filing with Chavant Family Office LLC (8.20%) | 2,037,510 | 8.20% | 13D (active) amendment | Apr 29, 2024 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of MOBX | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Vanguard Capital Management LLC | 459,158 | – | $964.23K | New | 0.00% |
| Vanguard Capital Wealth Advisors | 203,774 | – | $427.93K | New | 0.29% |
| Jane Street Group, LLC | 160,720 | – | $337.51K | New | 0.00% |
| Geode Capital Management, LLC | 111,880 | – | $234.97K | New | 0.00% |
| UBS Group AG | 92,934 | – | $195.16K | New | 0.00% |
| Corient Private Wealth LLC | 88,209 | – | $185.24K | New | 0.00% |
| Alessandra Capital Management, LLC | 68,789 | – | $144.46K | New | 0.10% |
| Vanguard Fiduciary Trust Co | 52,049 | – | $109.30K | New | 0.00% |
| BlackRock, Inc. | 34,045 | – | $71.50K | New | 0.00% |
| Virtu Financial LLC | 33,072 | – | $69.00K | New | 0.00% |
| Bank Of America Corp /De/ | 25,231 | – | $52.99K | New | 0.00% |
| Northern Trust Corp | 19,373 | – | $40.68K | New | 0.00% |
| Mariner, LLC | 15,527 | – | $32.61K | New | 0.00% |
| Krilogy Financial LLC | 10,201 | – | $21.42K | New | 0.00% |
| Massmutual Trust Co Fsb/Adv | 1,700 | – | $3.57K | New | 0.00% |
| SBI Securities Co., Ltd. | 698 | – | $1.47K | +443 | 0.00% |
| Allworth Financial LP | 555 | – | $1.17K | New | 0.00% |
| Harbour Investments, Inc. | 464 | – | $974 | +84 | 0.00% |
| Barclays PLC | 217 | – | $456 | New | 0.00% |
| Avion Wealth | 203 | – | $0 | New | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|
| Q2 2026 | 25 | 1M | 23 / 2 | 0 / 0 | 1M | 0M |
| Q1 2026 | 2 | 0M | 2 / 0 | 0 / 0 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
10 funds held MOBX in Q2 2026, 87% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of MOBX | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 359,662 | – | $755.29K | 0.00% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 99,496 | – | $208.94K | 0.00% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 46,946 | – | $112.67K | 0.00% | May 31, 2026 |
| iShares Micro-Cap ETF | 31,869 | – | $66.92K | 0.00% | Jun 30, 2026 |
| Fidelity Series Total Market Index Fund | 12,085 | – | $29.00K | 0.00% | May 31, 2026 |
| Fidelity Total Market Index Fund | 11,104 | – | $26.65K | 0.00% | May 31, 2026 |
| Fidelity Nasdaq Composite Index Fund | 2,743 | – | $6.58K | 0.00% | May 31, 2026 |
| 1290 VT Micro Cap Portfolio | 2,176 | – | $4.57K | 0.00% | Jun 30, 2026 |
| Total Stock Market Index Trust | 378 | – | $794 | 0.00% | Jun 30, 2026 |
| Blackstone Alternative Multi-Strategy Fund | 20 | – | $42 | 0.00% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | Latest filing |
|---|---|---|---|
| Philip Sansone | Chief Executive Officer, Director | 163,516 | Oct 13, 2026 |
| Keyvan Samini | President, CFO & Director | 1,114,405 | Aug 25, 2026 |
| Fabrizio Battaglia | Chief Executive Officer, Director | 3,118,204 | May 7, 2025 |
| James Aralis | Chief Technology Officer | 88,332 | Nov 28, 2025 |
| Frederick C. Goerner | Director | 219,711 | Sep 22, 2026 |
| David J. Aldrich | Director | 97,709 | Sep 22, 2026 |
| Michael J. Long | Director | 150,847 | Sep 22, 2026 |
| James J. Peterson | Director | 496,304 | Sep 22, 2026 |
| Kurt Busch | Director | 105,977 | Sep 22, 2026 |
| Bill Carpou | Director | 79,537 | Sep 22, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Philip Sansone Chief Executive Officer, Director | Oct 8, 2026 | Sale | −2,614 | $1.12 | $2.93K | 163,516 |
| James J. Peterson Director | Sep 14, 2026 | Award | +12,255 | – | – | 496,304 |
| James J. Peterson Director | Sep 14, 2026 | Award | +19,101 | – | – | 515,405 |
| David J. Aldrich Director | Sep 14, 2026 | Award | +19,101 | – | – | 97,709 |
| David J. Aldrich Director | Sep 14, 2026 | Award | +12,255 | – | – | 78,608 |
| Michael J. Long Director | Sep 14, 2026 | Award | +12,255 | – | – | 150,847 |
| Michael J. Long Director | Sep 14, 2026 | Award | +19,101 | – | – | 169,948 |
| Frederick C. Goerner Director | Sep 14, 2026 | Award | +12,255 | – | – | 219,711 |
| Frederick C. Goerner Director | Sep 14, 2026 | Award | +19,101 | – | – | 238,812 |
| Bill Carpou Director | Sep 14, 2026 | Award | +12,255 | – | – | 79,537 |
| Bill Carpou Director | Sep 14, 2026 | Award | +19,101 | – | – | 98,638 |
| Kurt Busch Director | Sep 14, 2026 | Award | +19,101 | – | – | 105,977 |
| Kurt Busch Director | Sep 14, 2026 | Award | +12,255 | – | – | 86,876 |
| Keyvan Samini President, CFO & Director | Aug 21, 2026 | Conversion | +12,500 | – | – | 29,614 |
| James J. Peterson Director | Aug 21, 2026 | Conversion | +144,927 | – | – | 484,049 |
| Frederick C. Goerner Director | Aug 21, 2026 | Conversion | +21,739 | – | – | 207,456 |
| Philip Sansone Chief Executive Officer, Director | Jul 16, 2026 | Sale | −9,301 | $1.87 | $17.39K | 166,130 |
| Bill Carpou Director | Jun 30, 2026 | Award | +13,660 | – | – | 67,282 |
| James J. Peterson Director, 10% owner | Jun 30, 2026 | Award | +13,660 | – | – | 339,122 |
| David J. Aldrich Director | Jun 30, 2026 | Award | +13,660 | – | – | 66,353 |
| Frederick C. Goerner Director | Jun 30, 2026 | Award | +13,660 | – | – | 185,717 |
| Michael J. Long Director | Jun 30, 2026 | Award | +13,660 | – | – | 138,592 |
| Kurt Busch Director | Jun 30, 2026 | Award | +13,660 | – | – | 74,621 |
| Keyvan Samini President, CFO & Director | Jun 12, 2026 | Sale | −112,110 | $1.98 | $221.98K | 155,053 |
| Keyvan Samini President, CFO & Director | Jun 11, 2026 | Sale | −3 | $2.14 | $6 | 267,163 |
| Philip Sansone Chief Executive Officer, Director | Apr 30, 2026 | Sale | −9,541 | $2.35 | $22.42K | 175,431 |
| Bill Carpou Director | Mar 30, 2026 | Award | +5,000 | – | – | 53,622 |
| Michael J. Long Director | Mar 30, 2026 | Award | +5,000 | – | – | 124,932 |
| David J. Aldrich Director | Mar 30, 2026 | Award | +5,000 | – | – | 52,693 |
| Frederick C. Goerner Director | Mar 30, 2026 | Award | +5,000 | – | – | 172,057 |
| Kurt Busch Director | Mar 30, 2026 | Award | +5,000 | – | – | 60,961 |
| James J. Peterson Director, 10% owner | Mar 30, 2026 | Award | +5,000 | – | – | 325,462 |
| Bill Carpou Director | Feb 25, 2026 | Award | +14,805 | – | – | 48,622 |
| Michael J. Long Director | Feb 25, 2026 | Award | +14,805 | – | – | 119,932 |
| David J. Aldrich Director | Feb 25, 2026 | Award | +14,805 | – | – | 47,693 |
| Frederick C. Goerner Director | Feb 25, 2026 | Award | +14,805 | – | – | 167,057 |
| Kurt Busch Director | Feb 25, 2026 | Award | +14,805 | – | – | 55,961 |
| James J. Peterson Director, 10% owner | Feb 25, 2026 | Award | +14,805 | – | – | 320,462 |
| Philip Sansone Chief Executive Officer, Director | Feb 2, 2026 | Sale | −87,025 | $0.19 | $16.53K | 1,848,816 |
| Keyvan Samini President, CFO & Director | Jan 5, 2026 | Sale | −211,672 | $0.32 | $67.74K | 2,671,661 |
| Keyvan Samini President, CFO & Director | Dec 21, 2025 | Option exercise | +333,333 | – | – | 2,883,333 |
| Michael J. Long Director | Nov 25, 2025 | Award | +39,166 | – | – | 1,051,303 |
| Bill Carpou Director | Nov 25, 2025 | Award | +39,166 | – | – | 338,188 |
| David J. Aldrich Director | Nov 25, 2025 | Award | +39,166 | – | – | 328,910 |
| James J. Peterson Director, 10% owner | Nov 25, 2025 | Award | +39,166 | – | – | 3,056,566 |
| Frederick C. Goerner Director | Nov 25, 2025 | Award | +39,166 | – | – | 1,522,546 |
| Kurt Busch Director | Nov 25, 2025 | Award | +39,166 | – | – | 411,595 |
| Philip Sansone Chief Executive Officer, Director | Nov 21, 2025 | Sale | −100,044 | $0.41 | $41.02K | 1,935,841 |
| James Aralis Chief Technology Officer | Nov 21, 2025 | Sale | −22,470 | $0.41 | $9.21K | 106,523 |
| Bill Carpou Director | Sep 23, 2025 | Award | +46,855 | – | – | 299,022 |
| James J. Peterson Director, 10% owner | Sep 23, 2025 | Award | +46,855 | – | – | 3,017,400 |
| Michael J. Long Director | Sep 23, 2025 | Award | +46,855 | – | – | 1,012,137 |
| David J. Aldrich Director | Sep 23, 2025 | Award | +46,855 | – | – | 289,744 |
| Kurt Busch Director | Sep 23, 2025 | Award | +46,855 | – | – | 372,429 |
| Frederick C. Goerner Director | Sep 23, 2025 | Award | +46,855 | – | – | 1,483,380 |
| Philip Sansone Chief Executive Officer, Director | Sep 19, 2025 | Award | +1,000,000 | – | – | 2,035,885 |
| Bill Carpou Director | Sep 12, 2025 | Sale | −19,953 | $0.94 | $18.76K | 252,167 |
| James Aralis Chief Technology Officer | Aug 26, 2025 | Sale | −18,191 | $0.92 | $16.74K | 88,332 |
| David J. Aldrich Director | Jul 9, 2025 | Award | −226,677 | – | – | 242,889 |
| Frederick C. Goerner Director | Jul 9, 2025 | Award | +131,356 | – | – | 1,436,525 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of shares outstanding
–
2M shares short
Days to cover
3.7
At 1M shares a day
Change since last report
-17.6%
From 3M shares
Short volume, 20 days
50.3%
Of volume reported to FINRA
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Mobix Labs's stock actually held short. Settlement fails (shares not delivered on time) peaked at 1,542,240 shares on Sep 9, 2026 over the last 90 days.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Philip Sansone Affiliate | Oct 8, 2026 | 2,614 | $2.93K | Oct 8, 2026 | RSU Vesting |
| Philip Sansone Affiliate | Jul 16, 2026 | 9,301 | $17.36K | Jul 16, 2026 | RSU Vesting |
| Keyvan Samini Officer | Jun 11, 2026 | 118,146 | $252.24K | Jun 11, 2026 | Founder Shares |
| Philip Sansone Affiliate | May 1, 2026 | 9,541 | $22.46K | May 1, 2026 | RSU Vesting |
| Philip Sansone Affiliate | Feb 2, 2026 | 87,025 | $16.36K | Feb 2, 2026 | RSU Vesting |
| Keyvan Samini Affiliate | Jan 5, 2026 | 211,672 | $68.65K | Jan 5, 2026 | Vesting of Restricted Stock Units |
| Philip Sansone Affiliate | Nov 21, 2025 | 100,044 | $41.22K | Nov 21, 2025 | RSU Vesting |
| James Aralis Affiliate | Nov 21, 2025 | 22,470 | $9.14K | Nov 21, 2025 | RSU Vesting |
| Bill Carpou Director | Sep 12, 2025 | 19,953 | $18.00K | Sep 12, 2025 | OPEN MARKET |
| James J. Peterson Director | Mar 5, 2025 | 500,000 | $550.00K | Mar 5, 2025 | Private Placement |
| Frederick C. Goerner Director | Feb 19, 2025 | 100,000 | $139.00K | Feb 19, 2025 | RSU Vesting |
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