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Atomera Inc

ATOM
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
SEC CIK
0001420520

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.

Q4 2025 vs. Q3 2025

How the institutions holding Atomera Inc changed between Q3 2025 and Q4 2025.

All holders in Q4 2025All holders in Q3 2025

13F holders of ATOM: Q3 2025 compared with Q4 2025
MeasureQ3 2025Of which not filed for Q4 2025Q4 2025Change
Holders85195+11
Shares10.6M2.92K10.3M−217.0K (−2.1%)
Value$46.6M$12.9K$22.9M−$23.8M (−51.0%)

1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (18)

Institutions that held Atomera Inc at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to ATOM in Q4 2025
InstitutionSharesValue% of portfolio
Marshall Wace, LLP179,276$396.2K0.00%
Pathstone Holdings, LLC167,905$371.1K0.00%
XTX Topco Ltd96,270$212.8K0.01%
Gsa Capital Partners LLP95,783$212.0K0.02%
Los Angeles Capital Management LLC38,047$114.5K0.00%
Aristides Capital LLC33,500$74.0K0.03%
Jain Global LLC31,143$68.8K0.00%
HRT Financial LP13,561$29.0K0.00%
JustInvest LLC10,298$22.8K0.00%
Act Wealth Management, LLC10,000$22.1K0.01%
Smartleaf Asset Management LLC6,000$13.1K0.00%
Group One Trading, L.P.2,705$5.98K0.00%
Tucker Asset Management LLC1,360$3.01K0.00%
New Millennium Group LLC750$1.66K0.00%
GAMMA Investing LLC658$1.45K0.00%
Fortitude Family Office, LLC230$5080.00%
Lodestone Wealth Management LLC170$3760.00%
Avion Wealth430$00.00%

Sold out (7)

Institutions that held Atomera Inc at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of ATOM in Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
Renaissance Technologies LLC60,300$266.5K
SG Americas Securities, LLC33,433$148.0K
Sigma Planning Corp12,750$56.4K
Sanctuary Advisors, LLC10,507$46.4K
WealthTrust Axiom LLC10,000$44.2K
Farther Finance Advisors, LLC2,192$9.69K
Advisory Services Network, LLC400$1.77K

Not filed for Q4 2025 yet (1)

Institutions that held Atomera Inc at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ATOM in Q3 2025 that haven't filed for Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
Creekmur Asset Management LLC2,924$12.9K