阿托梅拉公司
US ˙ NasdaqCM ˙ US04965B1008

SecurityATOM / Atomera Incorporated
InstitutionBlackRock, Inc.
Latest Disclosed Ownership1,720,244 shares
Ownership 5.60%
BlackRock, Inc. ownership in ATOM / Atomera Incorporated

2025-07-17 - BlackRock, Inc. has filed an SCHEDULE 13G form with the Securities and Exchange Commission (SEC) disclosing ownership of 1,720,244 shares of Atomera Incorporated (US:ATOM). This represents 5.6 percent ownership of the company. In their previous filing dated 2024-07-08 , BlackRock, Inc. had reported owning 378,392 shares, indicating an increase of 354.62 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2025-07-17 2025-07-17 13G 378,392 1,720,244 354.62 5.60 300.00
2024-07-08 2024-07-08 13G/A 1,534,838 378,392 -75.35 1.40 -76.27
2024-01-29 2024-01-29 13G/A 1,316,187 1,534,838 16.61 5.90 7.27
2023-02-01 2023-02-01 13G/A 1,344,997 1,316,187 -2.14 5.50 -5.17
2022-02-03 2022-02-03 13G/A 1,148,559 1,344,997 17.10 5.80 7.41
2021-02-02 2021-02-02 13G 1,148,559 5.40

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F ATOMERA COM 04965B100 2,372,844 399,668 20.26 9,041 107.34 0.0002
2026-02-12 2025-12-31 13F ATOMERA COM 04965B100 1,973,176 76,330 4.02 4,361 -48.00 0.0001
2025-11-12 2025-09-30 13F ATOMERA COM 04965B100 1,896,846 175,724 10.21 8,384 -3.34 0.0001
2025-08-12 2025-06-30 13F ATOMERA COM 04965B100 1,721,122 1,295,508 304.39 8,674 409.64 0.0002
2025-05-02 2025-03-31 13F ATOMERA COM 04965B100 425,614 23,193 5.76 1,702 -63.54 0.0000
2025-02-07 2024-12-31 13F ATOMERA COM 04965B100 402,421 22,225 5.85 4,668 367.27 0.0001
2024-11-13 2024-09-30 13F ATOMERA COM 04965B100 380,196 1,804 0.48 1,000 -30.67 0.0000
2024-08-13 2024-06-30 13F ATOMERA COM 04965B100 378,392 -1,114,120 -74.65 1,442 -84.33 0.0000
2024-05-10 2024-03-31 13F ATOMERA COM 04965B100 1,492,512 -42,326 -2.76 9,194 -14.56 0.0002
2024-02-13 2023-12-31 13F ATOMERA COM 04965B100 1,534,838 150,263 10.85 10,759 24.14 0.0003
2023-11-13 2023-09-30 13F ATOMERA COM 04965B100 1,384,575 -33,793 -2.38 8,667 -30.32 0.0002
2023-08-11 2023-06-30 13F ATOMERA COM 04965B100 1,418,368 140,161 10.97 12,439 52.78 0.0003
2023-05-12 2023-03-31 13F ATOMERA COM 04965B100 1,278,207 -37,980 -2.89 8,142 -0.54 0.0002
2023-02-13 2022-12-31 13F ATOMERA COM 04965B100 1,316,187 38,741 3.03 8,187 -36.74 0.0003
2022-11-14 2022-09-30 13F ATOMERA COM 04965B100 1,277,446 -22,535 -1.73 12,940 6.13 0.0004
2022-08-12 2022-06-30 13F ATOMERA COM 04965B100 1,299,981 -21,257 -1.61 12,193 -29.34 0.0004
2022-05-12 2022-03-31 13F ATOMERA COM 04965B100 1,321,238 -23,759 -1.77 17,256 -36.24 0.0005
2022-02-10 2021-12-31 13F ATOMERA COM 04965B100 1,344,997 66,824 5.23 27,062 -8.31 0.0007
2021-11-09 2021-09-30 13F ATOMERA COM 04965B100 1,278,173 -9,140 -0.71 29,515 6.93 0.0008
2021-08-11 2021-06-30 13F ATOMERA COM 04965B100 1,287,313 28,934 2.30 27,601 -10.47 0.0008
2021-05-07 2021-03-31 13F ATOMERA COM 04965B100 1,258,379 109,820 9.56 30,830 66.83 0.0009
2021-02-05 2020-12-31 13F ATOMERA COM 04965B100 1,148,559 75,533 7.04 18,480 64.81 0.0006
2020-11-06 2020-09-30 13F ATOMERA COM 04965B100 1,073,026 66,046 6.56 11,213 23.72 0.0004
2020-08-14 2020-06-30 13F ATOMERA COM 04965B100 1,006,980 931,613 1,236.10 9,063 3,332.95 0.0004
2020-05-01 2020-03-31 13F ATOMERA COM 04965B100 75,367 -574 -0.76 264 13.30 0.0000
2020-02-13 2019-12-31 13F ATOMERA COM 04965B100 75,941 9,964 15.10 233 -6.05 0.0000
2019-11-08 2019-09-30 13F ATOMERA COM 04965B100 65,977 -2,178 -3.20 248 -27.70 0.0000
2019-08-22 2019-06-30 13F/A-1 ATOMERA COM 04965B100 68,155 32,986 93.79 343 268.82 0.0000
2019-08-13 2019-06-30 13F ATOMERA COM 04965B100 68,155 32,986 343
2019-05-09 2019-03-31 13F ATOMERA COM 04965B100 35,169 -2,394 -6.37 93 -13.89 0.0000
2019-02-08 2018-12-31 13F ATOMERA COM 04965B100 37,563 6,745 21.89 108 -41.62 0.0000
2018-11-09 2018-09-30 13F ATOMERA COM 04965B100 30,818 1,242 4.20 185 2.21 0.0000
2018-08-09 2018-06-30 13F ATOMERA COM 04965B100 29,576 4,378 17.37 181 15.29 0.0000
2018-05-09 2018-03-31 13F ATOMERA COM 04965B100 25,198 954 3.93 157 49.52 0.0000
2018-02-09 2017-12-31 13F ATOMERA COM 04965B100 24,244 952 4.09 105 16.67 0.0000
2017-11-14 2017-09-30 13F ATOMERA COM 04965B100 23,292 14,275 158.31 90 136.84 0.0000
2017-08-10 2017-06-30 13F ATOMERA COM 04965B100 9,017 -18 -0.20 38 -40.62 0.0000
2017-05-12 2017-03-31 13F ATOMERA COM 04965B100 9,035 9,035 64 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.