Atomera Inc (ATOM) shareholders
ATOMNasdaqSemiconductors & Related DevicesFiscal year ends December 31
$2.99+0.11 (+3.64%)
Close on Nov 11, 2026Market cap $116.86MP/E –Yield –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
53.5%
21M of 39M shares
Institutional holders
122
32 new, 16 sold out
Net institutional buying
5M
In Q2 2026
Insider trades, 12 months
0 buys · 67 sales
Net sold $1.90M
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 |
|---|---|---|---|---|
| BlackRock, Inc. | 2,936,679 | 7.60% | 13G (passive) amendment | Jun 30, 2026 |
| Heights Capital Management, Inc. Joint filing with CVI Investments, Inc. (5.80%) | 2,100,000 | 5.80% | 13G (passive) | Feb 23, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of ATOM | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 2,990,446 | 7.65% | $26.05M | +617,602 | 0.00% |
| D. E. Shaw & Co., Inc. | 1,890,019 | 4.84% | $16.46M | +914,396 | 0.01% |
| Vanguard Capital Management LLC | 1,664,565 | 4.26% | $14.50M | +376,404 | 0.00% |
| Avenir Corp | 1,468,660 | 3.76% | $12.79M | +7,245 | 1.56% |
| Baird Financial Group, Inc. | 1,340,888 | 3.43% | $11.68M | +63,208 | 0.02% |
| UBS Group AG | 1,328,824 | 3.40% | $11.57M | +1,152,963 | 0.00% |
| Geode Capital Management, LLC | 990,370 | 2.53% | $8.63M | +220,673 | 0.00% |
| Jane Street Group, LLC | 809,991 | 2.07% | $7.06M | +650,315 | 0.00% |
| Quantum Private Wealth, LLC | 743,895 | 1.90% | $6.48M | +145,586 | 1.66% |
| State Street Corp | 717,862 | 1.84% | $6.25M | +139,965 | 0.00% |
| Two Sigma Investments, LP | 667,667 | 1.71% | $5.82M | +137,667 | 0.00% |
| Hollencrest Capital Management | 573,266 | 1.47% | $4.99M | −23,933 | 0.33% |
| Vanguard Portfolio Management LLC | 554,452 | 1.42% | $4.83M | +375,482 | 0.00% |
| Northern Trust Corp | 370,601 | 0.95% | $3.23M | +81,921 | 0.00% |
| Connor, Clark & Lunn Investment Management Ltd. | 352,205 | 0.90% | $3.07M | +331,118 | 0.01% |
| Defender Capital, LLC. | 295,450 | 0.76% | $2.57M | New | 0.84% |
| Vanguard Fiduciary Trust Co | 274,960 | 0.70% | $2.39M | +58,568 | 0.00% |
| Morgan Stanley | 274,394 | 0.70% | $2.39M | +2,792 | 0.00% |
| Marshall Wace, Llp | 266,796 | 0.68% | $2.32M | −221,879 | 0.00% |
| Pathstone Holdings, LLC | 250,905 | 0.64% | $2.19M | – | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 122 | 21M | 53.5% | 32 / 50 | 24 / 16 | 7M | 2M |
| Q1 2026 | 108 | 16M | 41.2% | 30 / 39 | 18 / 15 | 8M | 1M |
| Q4 2025 | 95 | 10M | 26.4% | 18 / 31 | 27 / 7 | 1M | 2M |
| Q3 2025 | 85 | 11M | 27.0% | 12 / 21 | 27 / 16 | 1M | 2M |
| Q2 2025 | 89 | 11M | 28.9% | 20 / 30 | 27 / 12 | 4M | 2M |
| Q1 2025 | 81 | 9M | 23.6% | 18 / 34 | 22 / 11 | 2M | 1M |
| Q4 2024 | 75 | 8M | 21.6% | 23 / 30 | 11 / 13 | 3M | 1M |
| Q3 2024 | 66 | 6M | 16.0% | 9 / 16 | 28 / 18 | 1M | 1M |
| Q2 2024 | 77 | 7M | 17.4% | 18 / 17 | 32 / 15 | 1M | 3M |
| Q1 2024 | 74 | 8M | 21.2% | 7 / 22 | 28 / 8 | 1M | 1M |
| Q4 2023 | 75 | 8M | 21.4% | 5 / 28 | 24 / 8 | 1M | 0M |
| Q3 2023 | 79 | 8M | 21.1% | 5 / 26 | 28 / 9 | 0M | 1M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
88 funds held ATOM in Q2 2026, 74% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of ATOM | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 1,171,475 | 3.00% | $10.20M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 1,009,164 | 2.58% | $8.79M | 0.01% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 457,294 | 1.17% | $3.98M | 0.00% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 419,050 | 1.07% | $2.16M | 0.01% | Jul 31, 2026 |
| iShares Russell 2000 Growth ETF | 338,614 | 0.87% | $2.95M | 0.02% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 168,002 | 0.43% | $1.68M | 0.00% | May 31, 2026 |
| Vanguard Russell 2000 Index Fund | 155,276 | 0.40% | $1.55M | 0.01% | May 31, 2026 |
| iShares Micro-Cap ETF | 128,974 | 0.33% | $1.12M | 0.07% | Jun 30, 2026 |
| Vanguard Explorer Fund | 127,243 | 0.33% | $656.57K | 0.00% | Jul 31, 2026 |
| Schwab Small-Cap Index Fund | 93,284 | 0.24% | $481.35K | 0.01% | Jul 31, 2026 |
| Jacob Internet Fund | 82,000 | 0.21% | $818.36K | 1.84% | May 31, 2026 |
| Master Small Cap Index Series | 71,627 | 0.18% | $623.87K | 0.01% | Jun 30, 2026 |
| Fidelity Total Market Index Fund | 62,404 | 0.16% | $622.79K | 0.00% | May 31, 2026 |
| Nuveen Small Cap Blend Index Fund | 50,739 | 0.13% | $261.81K | 0.01% | Jul 31, 2026 |
| Fidelity Series Total Market Index Fund | 49,394 | 0.13% | $492.95K | 0.00% | May 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Scott A. Bibaud | CEO and President, Director | 682,005 | 1.74% | Sep 3, 2026 |
| Robert J. Mears | Chief Technology Officer | 258,702 | 0.66% | Nov 3, 2026 |
| Francis Laurencio | CFO | 249,818 | 0.64% | Sep 3, 2026 |
| Shawn G. Thomas | VP of Marketing and Bus Dev | 30,064 | 0.08% | Feb 21, 2025 |
| Suja Ramnath | Director | 86,740 | 0.22% | May 13, 2026 |
| Duy Loan T. Le | Director | 134,460 | 0.34% | May 13, 2026 |
| John Gerber | Director | 534,857 | 1.37% | May 13, 2026 |
| Steven K. Shevick | Director | 144,718 | 0.37% | May 13, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Robert J. Mears Chief Technology Officer | Nov 2, 2026 | Sale(10b5-1 plan) | −1,000 | $3.40 | $3.40K | 256,036 |
| Robert J. Mears Chief Technology Officer | Oct 1, 2026 | Sale(10b5-1 plan) | −1,000 | $4.38 | $4.38K | 257,036 |
| Robert J. Mears Chief Technology Officer | Sep 2, 2026 | Sale(10b5-1 plan) | −6,312 | $3.87 | $24.43K | 258,036 |
| Robert J. Mears Chief Technology Officer | Sep 1, 2026 | Sale(10b5-1 plan) | −1,000 | $4.05 | $4.05K | 269,715 |
| Robert J. Mears Chief Technology Officer | Sep 1, 2026 | Sale(10b5-1 plan) | −2,192 | $4.05 | $8.88K | 267,523 |
| Robert J. Mears Chief Technology Officer | Sep 1, 2026 | Sale(10b5-1 plan) | −889 | $4.05 | $3.60K | 266,634 |
| Robert J. Mears Chief Technology Officer | Sep 1, 2026 | Sale(10b5-1 plan) | −1,515 | $4.05 | $6.14K | 265,119 |
| Robert J. Mears Chief Technology Officer | Sep 1, 2026 | Sale(10b5-1 plan) | −771 | $4.05 | $3.12K | 264,348 |
| Francis Laurencio CFO | Sep 1, 2026 | Sale(10b5-1 plan) | −1,020 | $4.05 | $4.13K | 249,818 |
| Francis Laurencio CFO | Sep 1, 2026 | Sale(10b5-1 plan) | −2,085 | $4.05 | $8.44K | 247,733 |
| Francis Laurencio CFO | Sep 1, 2026 | Sale(10b5-1 plan) | −884 | $4.05 | $3.58K | 246,849 |
| Francis Laurencio CFO | Sep 1, 2026 | Sale(10b5-1 plan) | −2,515 | $4.05 | $10.19K | 250,838 |
| Scott A. Bibaud CEO and President, Director | Sep 1, 2026 | Sale(10b5-1 plan) | −5,446 | $4.05 | $22.06K | 682,005 |
| Scott A. Bibaud CEO and President, Director | Sep 1, 2026 | Sale(10b5-1 plan) | −4,515 | $4.05 | $18.29K | 687,451 |
| Scott A. Bibaud CEO and President, Director | Sep 1, 2026 | Sale(10b5-1 plan) | −1,988 | $4.05 | $8.05K | 691,966 |
| Scott A. Bibaud CEO and President, Director | Sep 1, 2026 | Sale(10b5-1 plan) | −1,807 | $4.05 | $7.32K | 693,954 |
| Robert J. Mears Chief Technology Officer | Aug 3, 2026 | Sale(10b5-1 plan) | −1,000 | $5.05 | $5.05K | 270,715 |
| Robert J. Mears Chief Technology Officer | Jul 1, 2026 | Sale(10b5-1 plan) | −1,000 | $8.40 | $8.40K | 271,715 |
| Francis Laurencio CFO | Jun 15, 2026 | Option exercise | +6,400 | $5.64 | $36.10K | 259,753 |
| Francis Laurencio CFO | Jun 15, 2026 | Sale | −1,500 | $9.44 | $14.16K | 253,353 |
| Francis Laurencio CFO | Jun 15, 2026 | Option exercise | +1,500 | $3.90 | $5.85K | 254,853 |
| Francis Laurencio CFO | Jun 15, 2026 | Sale | −6,400 | $9.44 | $60.42K | 253,353 |
| Francis Laurencio CFO | Jun 15, 2026 | Option exercise | +12,500 | $7.01 | $87.63K | 265,853 |
| Francis Laurencio CFO | Jun 15, 2026 | Sale | −12,500 | $9.44 | $118.00K | 253,353 |
| Scott A. Bibaud CEO and President, Director | Jun 15, 2026 | Sale | −50,000 | $9.37 | $468.50K | 695,761 |
| Scott A. Bibaud CEO and President, Director | Jun 15, 2026 | Option exercise | +50,000 | $7.01 | $350.50K | 745,761 |
| Robert J. Mears Chief Technology Officer | Jun 15, 2026 | Sale(10b5-1 plan) | −8,182 | $9.46 | $77.40K | 272,715 |
| Robert J. Mears Chief Technology Officer | Jun 15, 2026 | Option exercise | +10,000 | $7.65 | $76.50K | 280,897 |
| Robert J. Mears Chief Technology Officer | Jun 9, 2026 | Sale(10b5-1 plan) | −8,012 | $8.75 | $70.11K | 270,897 |
| Robert J. Mears Chief Technology Officer | Jun 9, 2026 | Option exercise | +10,000 | $7.01 | $70.10K | 278,909 |
| Robert J. Mears Chief Technology Officer | Jun 9, 2026 | Sale(10b5-1 plan) | −10,000 | $8.75 | $87.50K | 268,909 |
| Robert J. Mears Chief Technology Officer | Jun 9, 2026 | Option exercise | +10,000 | $7.01 | $70.10K | 278,909 |
| Robert J. Mears Chief Technology Officer | Jun 8, 2026 | Sale(10b5-1 plan) | −9,980 | $8.20 | $81.84K | 269,909 |
| Robert J. Mears Chief Technology Officer | Jun 8, 2026 | Option exercise | +10,000 | $7.01 | $70.10K | 287,950 |
| Robert J. Mears Chief Technology Officer | Jun 8, 2026 | Sale(10b5-1 plan) | −10,000 | $8.20 | $82.00K | 277,950 |
| Robert J. Mears Chief Technology Officer | Jun 8, 2026 | Sale(10b5-1 plan) | −1,000 | $8.20 | $8.20K | 268,909 |
| Robert J. Mears Chief Technology Officer | Jun 8, 2026 | Sale(10b5-1 plan) | −7,313 | $8.50 | $62.16K | 279,889 |
| Robert J. Mears Chief Technology Officer | Jun 8, 2026 | Option exercise | +8,115 | $7.65 | $62.08K | 287,202 |
| Robert J. Mears Chief Technology Officer | Jun 8, 2026 | Sale(10b5-1 plan) | −8,863 | $8.20 | $72.68K | 279,087 |
| Robert J. Mears Chief Technology Officer | Jun 8, 2026 | Option exercise | +10,000 | $7.01 | $70.10K | 287,950 |
| Scott A. Bibaud CEO and President, Director | Jun 1, 2026 | Sale(10b5-1 plan) | −5,534 | $9.52 | $52.68K | 699,618 |
| Scott A. Bibaud CEO and President, Director | Jun 1, 2026 | Sale(10b5-1 plan) | −4,589 | $9.52 | $43.69K | 705,152 |
| Scott A. Bibaud CEO and President, Director | Jun 1, 2026 | Sale(10b5-1 plan) | −2,020 | $9.52 | $19.23K | 697,598 |
| Scott A. Bibaud CEO and President, Director | Jun 1, 2026 | Sale(10b5-1 plan) | −1,837 | $9.52 | $17.49K | 695,761 |
| Francis Laurencio CFO | Jun 1, 2026 | Sale(10b5-1 plan) | −1,037 | $9.51 | $9.86K | 253,353 |
| Francis Laurencio CFO | Jun 1, 2026 | Sale(10b5-1 plan) | −2,119 | $9.52 | $20.17K | 254,390 |
| Francis Laurencio CFO | Jun 1, 2026 | Sale(10b5-1 plan) | −2,555 | $9.52 | $24.32K | 256,509 |
| Francis Laurencio CFO | Jun 1, 2026 | Sale(10b5-1 plan) | −899 | $9.51 | $8.55K | 259,064 |
| Robert J. Mears Chief Technology Officer | Jun 1, 2026 | Sale(10b5-1 plan) | −2,227 | $9.52 | $21.20K | 280,393 |
| Robert J. Mears Chief Technology Officer | Jun 1, 2026 | Sale(10b5-1 plan) | −1,539 | $9.52 | $14.65K | 278,854 |
| Robert J. Mears Chief Technology Officer | Jun 1, 2026 | Sale(10b5-1 plan) | −783 | $9.52 | $7.45K | 282,620 |
| Robert J. Mears Chief Technology Officer | Jun 1, 2026 | Sale(10b5-1 plan) | −904 | $9.51 | $8.60K | 277,950 |
| Duy Loan T. Le Director | May 12, 2026 | Award | +14,302 | – | – | 134,460 |
| Steven K. Shevick Director | May 12, 2026 | Award | +14,302 | – | – | 142,518 |
| John Gerber Director | May 12, 2026 | Award | +14,302 | – | – | 332,569 |
| Suja Ramnath Director | May 12, 2026 | Award | +14,302 | – | – | 86,740 |
| Francis Laurencio CFO | Mar 2, 2026 | Sale(10b5-1 plan) | −2,279 | $4.95 | $11.28K | 145,459 |
| Francis Laurencio CFO | Mar 2, 2026 | Award | +28,626 | – | – | 174,085 |
| Francis Laurencio CFO | Mar 2, 2026 | Award | +57,252 | – | – | 231,337 |
| Francis Laurencio CFO | Mar 2, 2026 | Award | +28,626 | – | – | 259,963 |
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 float
17.06%
6M shares short
Days to cover
7.0
At 1M shares a day
Change since last report
+1.9%
From 6M shares
Short volume, 20 days
59.1%
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 Atomera's stock actually held short. Settlement fails (shares not delivered on time) peaked at 43,970 shares on Oct 2, 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 |
|---|---|---|---|---|---|
| Robert J. Mears Officer | Nov 2, 2026 | 1,000 | $3.40K | Nov 2, 2026 | Exercised Shares |
| Robert J. Mears Officer | Oct 1, 2026 | 1,000 | $4.38K | Oct 1, 2026 | Exercised Shares |
| Robert J. Mears Officer | Sep 2, 2026 | 6,312 | $24.43K | Sep 2, 2026 | Restricted Stock |
| Robert J. Mears Officer | Sep 1, 2026 | 1,000 | $4.05K | Sep 1, 2026 | Exercised Shares |
| Scott A. Bibaud Officer- CEO | Sep 1, 2026 | 13,756 | $55.71K | Sep 1, 2026 | Vesting of Restricted Stock |
| Francis Laurencio Officer-CFO | Sep 1, 2026 | 6,504 | $26.34K | Sep 1, 2026 | Vesting of Restricted Stock |
| Robert J. Mears Officer-CTO | Sep 1, 2026 | 5,367 | $21.73K | Sep 1, 2026 | Vesting of Restricted Stock |
| Robert J. Mears Officer | Aug 3, 2026 | 1,000 | $5.05K | Aug 3, 2026 | Exercised Shares |
| Robert J. Mears Officer | Jul 1, 2026 | 1,000 | $8.40K | Jul 1, 2026 | Exercised Shares |
| Scott A. Bibaud Officer, Director | Jun 15, 2026 | 50,000 | $468.30K | Jun 15, 2026 | Stock Option Exercise |
| Robert J. Mears Officer | Jun 15, 2026 | 8,182 | $77.40K | Jun 15, 2026 | Stock Option Exercise |
| Francis Laurencio Officer | Jun 15, 2026 | 20,400 | $192.64K | Jun 15, 2026 | Stock Option Exercise |
| Robert J. Mears Officer | Jun 9, 2026 | 18,012 | $157.61K | Jun 9, 2026 | Stock Option Exercise |
| Robert J. Mears Officer | Jun 8, 2026 | 37,156 | $306.82K | Jun 8, 2026 | Stock Option Exercise |
| Scott A. Bibaud Officer- CEO and President | Jun 1, 2026 | 13,980 | $133.05K | Jun 1, 2026 | Vesting of Restricted Stock |
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