Atomera Inc

ATOM

Exchange: Nasdaq
Industry: Semiconductors & Related Devices
SEC CIK: 0001420520

SEC filings (opens in a new tab)

In the last 90 days, Atomera Inc insiders filed 0 open-market purchases and 4 sales; 121 institutions reported holding it in 13F filings for Q2 2026, worth $181.8M in total; no superinvestor holds it.

Q2 2026 vs. Q1 2026

How the institutions holding Atomera Inc changed between Q1 2026 and Q2 2026.

All holders in Q2 2026 All holders in Q1 2026

13F holders of ATOM: Q1 2026 compared with Q2 2026
Measure	Q1 2026	Of which not filed for Q2 2026	Q2 2026	Change
Holders	108	2	121	+15
Shares	16.1M	8.08K	20.9M	+4.81M (+29.9%)
Value	$61.3M	$30.8K	$181.8M	+$120.6M (+196.9%)

2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (31)

Institutions that held Atomera Inc at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to ATOM in Q2 2026
Institution	Shares	Value	% of portfolio
Defender Capital, LLC.	295,450	$2.57M	0.84%
Trexquant Investment LP	225,139	$1.96M	0.01%
Millennium Management LLC	156,629	$1.36M	0.00%
Andar Capital Management HK Ltd	90,000	$783.9K	0.35%
Gsa Capital Partners LLP	71,455	$622.0K	0.04%
EAM Investors, LLC	71,261	$620.7K	0.06%
Numerai GP LLC	62,822	$547.2K	0.04%
SEI Investments Co	42,214	$367.7K	0.00%
XTX Topco Ltd	35,422	$308.5K	0.00%
Concentric Capital Strategies, LP	25,452	$221.7K	0.01%
MetLife Investment Management	22,899	$199.4K	0.00%
Canada Pension Plan Investment Board	20,500	$178.6K	0.00%
Sequoia Financial Advisors, LLC	20,183	$175.8K	0.00%
Creative Planning	16,981	$147.9K	0.00%
Centiva Capital, LP	15,744	$137.1K	0.00%
nVerses Capital, LLC	14,382	$125.3K	0.19%
Rathbone Brothers plc	13,485	$117.5K	0.00%
Entropy Technologies, LP	12,383	$107.9K	0.00%
Intech Investment Management LLC	11,958	$104.2K	0.00%
State of Wyoming	11,323	$98.6K	0.01%
Point72 Asset Management, L.P.	10,532	$91.7K	0.00%
Manufacturers Life Insurance Company, The	10,168	$88.6K	0.00%
Marathon Capital Management	10,000	$87.1K	0.02%
PEAK6 LLC	9,252	$80.6K	0.00%
Meeder Asset Management Inc	926	$8.06K	0.00%
Rockefeller Capital Management L.P.	876	$7.63K	0.00%
California State Teachers Retirement System	423	$3.68K	0.00%
Signaturefd, LLC	341	$2.97K	0.00%
Massmutual Trust Co FSB	224	$1.95K	0.00%
McDonald Partners LLC	195	$1.70K	0.00%
National Bank of Canada	36	$313	0.00%

Sold out (16)

Institutions that held Atomera Inc at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of ATOM in Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Arosa Capital Management LP	490,000	$1.87M
Renaissance Technologies LLC	163,066	$621.3K
Virtu Financial LLC	25,449	$97.0K
Mirabella Financial Services LLP	23,082	$87.9K
IMC-Chicago, LLC	17,873	$68.1K
Susquehanna International Group, LLP	11,093	$42.3K
Act Wealth Management, LLC	10,000	$38.1K
GHP Investment Advisors, Inc.	4,433	$16.9K
Clear Street Markets LLC	1,514	$5.77K
Simplex Trading, LLC	648	$2.47K
Advisory Services Network, LLC	400	$1.52K
Lodestone Wealth Management LLC	170	$648
Quantbot Technologies LP	100	$381
Root Financial Partners, LLC	82	$312
MAI Capital Management	13	$50
IFP Advisors, Inc	10	$38

Not filed for Q2 2026 yet (2)

Institutions that held Atomera Inc at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ATOM in Q1 2026 that haven't filed for Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
CWM, LLC	8,053	$30.7K
Sunbelt Securities, Inc.	24	$91