Sigma Planning Corp Atomera Inc Transaction History

Sigma Planning Corp

$3.32 Billion
Q3 2025

A detailed history of Sigma Planning Corp transactions in Atomera Inc stock. As of the latest transaction made, Sigma Planning Corp holds 12,750 shares of ATOM stock, worth $28,432. This represents 0.0% of its overall portfolio holdings.

Number of Shares

12,750

Previous 24,800 48.59%

Holding current value

$28,432

Previous $124,000 56.45%

% of portfolio

0.0%

Previous 0.0%

26 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 10, 2025	SELL	$3.13 - $5.38 $37,716 - $64,829	-12,050 Reduced 48.59%	12,750 $54,000
Q2 2025 Aug 05, 2025	SELL	$3.5 - $7.63 $84,735 - $184,722	-24,210 Reduced 49.4%	24,800 $124,000
Q1 2025 May 01, 2025	SELL	$4.0 - $16.55 $3,200 - $13,240	-800 Reduced 1.61%	49,010 $196,000
Q4 2024 Feb 03, 2025	BUY	$2.46 - $14.27 $61,032 - $354,038	24,810 Added 99.24%	49,810 $577,000
Q3 2024 Nov 01, 2024	SELL	$2.45 - $4.21 $2,940 - $5,052	-1,200 Reduced 4.58%	25,000 $65,000

Q2 2024 Aug 05, 2024	SELL	$3.71 - $6.61 $1,484 - $2,644	-400 Reduced 1.5%	26,200 $99,000
Q1 2024 May 01, 2024	BUY	$5.83 - $9.12 $87,450 - $136,800	15,000 Added 129.31%	26,600 $163,000
Q4 2023 Feb 01, 2024	SELL	$5.11 - $7.75 $77,416 - $117,412	-15,150 Reduced 56.64%	11,600 $81,000
Q2 2023 Aug 01, 2023	BUY	$5.21 - $9.91 $26,440 - $50,293	5,075 Added 23.41%	26,750 $234,000
Q1 2023 May 05, 2023	BUY	$5.59 - $8.68 $5,590 - $8,680	1,000 Added 4.84%	21,675 $138,000
Q4 2022 Jan 24, 2023	BUY	$5.93 - $10.51 $3,409 - $6,043	575 Added 2.86%	20,675 $0
Q3 2022 Nov 10, 2022	BUY	$9.3 - $14.83 $14,415 - $22,986	1,550 Added 8.36%	20,100 $204,000
Q2 2022 Aug 11, 2022	BUY	$9.13 - $13.39 $19,812 - $29,056	2,170 Added 13.25%	18,550 $174,000
Q1 2022 Apr 20, 2022	BUY	$10.83 - $20.29 $28,699 - $53,768	2,650 Added 19.3%	16,380 $214,000
Q4 2021 Feb 02, 2022	SELL	$19.56 - $31.77 $391 - $635	-20 Reduced 0.15%	13,730 $276,000
Q3 2021 Oct 28, 2021	BUY	$17.09 - $26.53 $6,836 - $10,612	400 Added 3.0%	13,750 $317,000
Q2 2021 Aug 13, 2021	SELL	$13.53 - $27.93 $8,118 - $16,758	-600 Reduced 4.3%	13,350 $286,000
Q1 2021 May 06, 2021	SELL	$15.9 - $46.45 $570,810 - $1.67 Million	-35,900 Reduced 72.02%	13,950 $342,000
Q4 2020 Feb 09, 2021	SELL	$8.15 - $16.29 $815 - $1,629	-100 Reduced 0.2%	49,850 $802,000
Q3 2020 Nov 03, 2020	SELL	$8.55 - $12.71 $40,185 - $59,737	-4,700 Reduced 8.6%	49,950 $522,000
Q2 2020 Jul 31, 2020	BUY	$3.45 - $10.75 $97,807 - $304,762	28,350 Added 107.79%	54,650 $492,000
Q1 2020 May 01, 2020	BUY	$2.55 - $5.67 $10,200 - $22,680	4,000 Added 17.94%	26,300 $92,000
Q4 2019 Feb 03, 2020	BUY	$2.62 - $3.94 $1,310 - $1,970	500 Added 2.29%	22,300 $69,000
Q3 2019 Nov 01, 2019	BUY	$3.5 - $5.53 $8,750 - $13,825	2,500 Added 12.95%	21,800 $82,000
Q2 2019 Aug 01, 2019	BUY	$2.56 - $5.19 $768 - $1,557	300 Added 1.58%	19,300 $97,000
Q4 2018 Jan 31, 2019	BUY	$2.5 - $6.13 $47,500 - $116,470	19,000 New	19,000 $55,000

Others Institutions Holding ATOM

# of Institutions

Shares Held

9.18M

Call Options Held

62K

Put Options Held

123K

View Full List

About Atomera Inc

Ticker ATOM
Exchange NASDAQ
Sector Technology
Industry Semiconductor Equipment & Materials
Shares Outstandng 23,627,800
Market Cap $52.7M
Description
Atomera Incorporated develops, commercializes, and licenses proprietary materials, processes, and technologies for the semiconductor industry in North America and the Asia Pacific. The company's lead technology is the Mears Silicon Technology, a thin film of reengineered silicon that can be applied as a transistor channel enhancement to CMOS-typ...

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Sigma Planning Corp Atomera Inc Transaction History