ATOM Institutional Ownership & Shareholders
ATOMERA INC (ATOM) is currently held by 117 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $180.07M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of ATOM tracked by InsiderSet, reporting ownership valued at approximately $26.05M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $13.82M, representing an estimated loss of -46.96% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 67% of the total disclosed ATOM value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., D. E. Shaw & Co., Inc., Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in ATOMERA INC (ATOM).
This page ranks the largest institutional ATOM shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
117
Total Reported Value
$180.07M
Largest Holder
Blackrock, Inc.
Largest Position
$26.05M
Insider Transactions (90d)
15
Latest Filing Quarter
Q2 2026
New Institutional Positions
147
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 2,990,446 | $26,046,785 | $13,815,861 | -$12,230,924 | -46.96% | |
| D. E. Shaw & Co., Inc. | 0.01% | 1,890,019 | $16,462,066 | $8,731,888 | -$7,730,178 | -46.96% | |
| Vanguard Capital Management Llc | 0.00% | 1,664,565 | $14,498,361 | $7,690,290 | -$6,808,071 | -46.96% | |
| Avenir Corp | 1.56% | 1,468,660 | $12,792,029 | $6,785,209 | -$6,006,820 | -46.96% | |
| Baird Financial Group, Inc. | 0.02% | 1,340,888 | $11,679,134 | $6,194,903 | -$5,484,231 | -46.96% | |
| Ubs Group Ag | 0.00% | 1,328,824 | $11,574,057 | $6,139,167 | -$5,434,890 | -46.96% | |
| Geode Capital Management, Llc | 0.00% | 990,370 | $8,628,227 | $4,575,509 | -$4,052,718 | -46.97% | |
| Jane Street Group, Llc | 0.00% | 809,991 | $7,055,022 | $3,742,158 | -$3,312,864 | -46.96% | |
| Quantum Private Wealth, Llc | 1.66% | 743,895 | $6,479,329 | $3,436,795 | -$3,042,534 | -46.96% | |
| State Street Corp | 0.00% | 717,862 | $6,252,578 | $3,316,522 | -$2,936,056 | -46.96% | |
| Two Sigma Investments, Lp | 0.00% | 667,667 | $5,815,380 | $3,084,622 | -$2,730,758 | -46.96% | |
| Hollencrest Capital Management | 0.33% | 573,266 | $4,993,147 | $2,648,489 | -$2,344,658 | -46.96% | |
| Vanguard Portfolio Management Llc | 0.00% | 554,452 | $4,829,277 | $2,561,568 | -$2,267,709 | -46.96% | |
| Northern Trust Corp | 0.00% | 370,601 | $3,227,935 | $1,712,177 | -$1,515,758 | -46.96% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | 352,205 | $3,067,706 | $1,627,187 | -$1,440,519 | -46.96% | |
| Defender Capital, Llc. | 0.81% | 594,450 | $2,591,802 | $2,746,359 | +$154,557 | +5.96% | |
| Vanguard Fiduciary Trust Co | 0.00% | 274,960 | $2,394,902 | $1,270,315 | -$1,124,587 | -46.96% | |
| Morgan Stanley | 0.00% | 274,394 | $2,389,972 | $1,267,700 | -$1,122,272 | -46.96% | |
| Marshall Wace, Llp | 0.00% | 266,796 | $2,323,793 | $1,232,598 | -$1,091,195 | -46.96% | |
| Trexquant Investment Lp | 0.01% | 225,139 | $1,960,961 | $1,040,142 | -$920,819 | -46.96% | |
| Citadel Advisors Llc | 0.00% | 221,842 | $1,932,244 | $1,024,910 | -$907,334 | -46.96% | |
| Goldman Sachs Group Inc | 0.00% | 178,193 | $1,552,061 | $823,252 | -$728,809 | -46.96% | |
| Sargent Investment Group, Llc | 0.18% | 175,900 | $1,532,089 | $812,658 | -$719,431 | -46.96% | |
| Millennium Management Llc | 0.00% | 156,629 | $1,364,239 | $723,626 | -$640,613 | -46.96% | |
| Aqr Capital Management Llc | 0.00% | 137,945 | $1,201,500 | $637,306 | -$564,194 | -46.96% | |
| Westside Investment Management, Inc. | 0.14% | 119,682 | $1,042,436 | $552,931 | -$489,505 | -46.96% | |
| Charles Schwab Investment Management Inc | 0.00% | 113,371 | $987,461 | $523,774 | -$463,687 | -46.96% | |
| Pathstone Holdings, Llc | 0.00% | 250,905 | $955,949 | $1,159,181 | +$203,232 | +21.26% | |
| Bank Of New York Mellon Corp | 0.00% | 94,181 | $820,319 | $435,116 | -$385,203 | -46.96% | |
| Andar Capital Management Hk Ltd | 0.35% | 90,000 | $783,900 | $415,800 | -$368,100 | -46.96% | |
| Price T Rowe Associates Inc | 0.00% | 74,185 | $647,000 | $342,735 | -$304,265 | -47.03% | |
| Group One Trading Llc | 0.02% | 73,496 | $640,150 | $339,552 | -$300,598 | -46.96% | |
| Nuveen, Llc | 0.00% | 73,383 | $639,166 | $339,029 | -$300,137 | -46.96% | |
| Gsa Capital Partners Llp | 0.04% | 71,455 | $622,000 | $330,122 | -$291,878 | -46.93% | |
| Informed Momentum Co Llc | 0.06% | 71,261 | $620,683 | $329,226 | -$291,457 | -46.96% | |
| Numerai Gp Llc | 0.04% | 62,822 | $547,180 | $290,238 | -$256,942 | -46.96% | |
| Pcm Encore, Llc | 0.08% | 52,260 | $455,185 | $241,441 | -$213,744 | -46.96% | |
| Bank Of America Corp | 0.00% | 47,424 | $413,062 | $219,099 | -$193,963 | -46.96% | |
| Rhumbline Advisers | 0.00% | 43,961 | $382,894 | $203,100 | -$179,794 | -46.96% | |
| Sei Investments Co | 0.00% | 42,214 | $367,684 | $195,029 | -$172,655 | -46.96% | |
| Vanguard Global Advisers, Llc | 0.00% | 42,108 | $366,761 | $194,539 | -$172,222 | -46.96% | |
| Deutsche Bank Ag\ | 0.00% | 38,171 | $332,469 | $176,350 | -$156,119 | -46.96% | |
| Fmr Llc | 0.00% | 37,132 | $323,422 | $171,550 | -$151,872 | -46.96% | |
| Wells Fargo & Company/Mn | 0.00% | 36,253 | $315,763 | $167,489 | -$148,274 | -46.96% | |
| Xtx Topco Ltd | 0.00% | 35,422 | $308,526 | $163,650 | -$144,876 | -46.96% | |
| Commonwealth Equity Services, Llc | 0.00% | 34,472 | $300,250 | $159,261 | -$140,989 | -46.96% | |
| Channel Wealth Llc | 0.07% | 34,300 | $298,753 | $158,466 | -$140,287 | -46.96% | |
| Invesco Ltd. | 0.00% | 31,299 | $272,614 | $144,601 | -$128,013 | -46.96% | |
| Brown Advisory Inc | 0.00% | 31,143 | $271,256 | $143,881 | -$127,375 | -46.96% | |
| Arax Advisory Partners | 0.00% | 29,876 | $260,221 | $138,027 | -$122,194 | -46.96% |
Frequently asked questions about ATOM
Who are the largest institutional holders of ATOM?
The largest institutional holders of ATOM reported in the latest SEC Form 13F filings include Blackrock, Inc., D. E. Shaw & Co., Inc., Vanguard Capital Management Llc, Avenir Corp, and Baird Financial Group, Inc.. InsiderSet ranks institutional holders by their latest reported ATOM position.
What is ATOM institutional ownership?
This page tracks ATOM positions reported by institutional investment managers through SEC Form 13F. ATOMERA INC (ATOM) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own ATOM?
InsiderSet currently tracks 117 institutional managers reporting ATOM holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of ATOM shareholders.
How much ATOM stock do institutions own?
Institutional investment managers disclosed approximately $180.07M in ATOM holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was ATOM institutional ownership last updated?
The latest ATOM institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional ATOM holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its ATOM position after the reporting date.
Are institutions buying or selling ATOM?
Institutional buying and selling can be analyzed by comparing ATOM positions across consecutive 13F reporting periods. InsiderSet's ATOM Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View ATOM ownership changes.
How has ATOM institutional ownership changed over time?
InsiderSet tracks ATOM institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.