Aetherion Technologies Inc. (AETR) shareholders
AETRNasdaqEngines & TurbinesFiscal year ends December 31
$1.67−0.08 (-4.57%)
Close on Nov 13, 2026Market cap $29.02MP/E –Yield –
Ownership
Who owns Aetherion Technologies's shares
Held by institutions
–
Shares held, 13F filers
Institutional holders
–
Net institutional buying
–
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Heights Capital Management, Inc. Joint filing with CVI Investments, Inc. (9.90%) | 1,930,712 | 9.90% | 13G (passive) | Jun 22, 2026 |
| Kevin Douglas Joint filing with Michelle Douglas (7.70%) | 1,816,689 | 10.50% | 13D (active) amendment | Apr 30, 2025 |
| Royce & Associates LP | 1,244,479 | 6.55% | 13G (passive) amendment | Sep 30, 2026 |
| Grace & White, Inc. | 1,163,087 | 6.70% | 13G (passive) amendment | Dec 31, 2025 |
| Alex Cushner | 1,144,506 | 6.68% | 13G (passive) | Dec 31, 2024 |
| Baird Robert W & Co Inc /Wi/ Joint filing with Baird Financial Corp (5.30%), Baird Financial Group, Inc. (5.30%) | 916,168 | 5.30% | 13G (passive) | Dec 31, 2024 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Kevin Douglas 10% owner | Jul 19, 2017 | Award | +150,000 | $1.50 | $225.00K | 150,000 |
| Family Trust Douglas 10% owner | Jul 19, 2017 | Award | +600,000 | $1.50 | $900.00K | 6,829,808 |
| Family Trust Douglas 10% owner | Jul 19, 2017 | Award | +150,000 | $1.50 | $225.00K | 150,000 |
| Family Trust Douglas 10% owner | Jul 19, 2017 | Award | +150,000 | $1.50 | $225.00K | 150,000 |
| Family Trust Douglas 10% owner | Jul 19, 2017 | Award | +150,000 | $1.50 | $225.00K | 150,000 |
| Family Trust Douglas 10% owner | Jul 19, 2017 | Award | +600,000 | $1.50 | $900.00K | 6,360,206 |
| Family Trust Douglas 10% owner | Jul 19, 2017 | Award | +200,000 | $1.50 | $300.00K | 1,915,790 |
| James E. Douglas Iii 10% owner | Jun 1, 2016 | Award | +2,232,300 | – | – | 5,760,206 |
| James E. Douglas Iii 10% owner | Jun 1, 2016 | Award | +1,111,717 | – | – | 2,953,602 |
| James E. Douglas Iii 10% owner | Jun 1, 2016 | Award | +653,944 | – | – | 1,715,790 |
| James E. Douglas Iii 10% owner | Jun 1, 2016 | Award | +2,615,788 | – | – | 6,229,808 |
| Family Trust Douglas 10% owner | May 11, 2015 | Buy | +25,617 | $6.02 | $154.21K | 1,841,885 |
| Family Trust Douglas 10% owner | May 11, 2015 | Buy | +49,727 | $6.02 | $299.36K | 3,527,906 |
| Family Trust Douglas 10% owner | May 11, 2015 | Buy | +60,275 | $6.02 | $362.86K | 3,614,020 |
| Family Trust Douglas 10% owner | May 11, 2015 | Buy | +15,068 | $6.02 | $90.71K | 1,061,846 |
| Family Trust Douglas 10% owner | May 8, 2015 | Buy | +16,883 | $5.69 | $96.06K | 1,816,268 |
| Family Trust Douglas 10% owner | May 8, 2015 | Buy | +32,773 | $5.69 | $186.48K | 3,478,179 |
| Family Trust Douglas 10% owner | May 8, 2015 | Buy | +39,725 | $5.69 | $226.04K | 3,553,745 |
| Family Trust Douglas 10% owner | May 8, 2015 | Buy | +9,932 | $5.69 | $56.51K | 1,046,778 |
| Family Trust Douglas 10% owner | Feb 6, 2013 | Gift | −285,703 | – | – | 0 |
| Family Trust Douglas 10% owner | Feb 6, 2013 | Gift | −285,703 | – | – | 0 |
| & Jean Douglas Irrevocable Descendants Trust James 10% owner | Dec 31, 2012 | Gift | −52,902 | – | – | 2,934,650 |
| & Jean Douglas Irrevocable Descendants Trust James 10% owner | Dec 31, 2012 | Gift | −52,902 | – | – | 2,881,748 |
| Kevin Douglas 10% owner | Jul 30, 2012 | Buy | +17,000 | $38.38 | $652.46K | 1,799,385 |
| Kevin Douglas 10% owner | Jul 30, 2012 | Buy | +33,000 | $38.38 | $1.27M | 3,445,406 |
| Kevin Douglas 10% owner | Jul 30, 2012 | Buy | +40,000 | $38.38 | $1.54M | 2,987,552 |
| Kevin Douglas 10% owner | Jul 30, 2012 | Buy | +10,000 | $38.38 | $383.80K | 1,036,846 |
| Kevin Douglas 10% owner | Jul 27, 2012 | Buy | +10,000 | $38.57 | $385.70K | 1,026,846 |
| Kevin Douglas 10% owner | Jul 27, 2012 | Buy | +17,000 | $38.57 | $655.69K | 1,782,385 |
| Kevin Douglas 10% owner | Jul 27, 2012 | Buy | +33,000 | $38.57 | $1.27M | 3,412,406 |
| Kevin Douglas 10% owner | Jul 27, 2012 | Buy | +40,000 | $38.57 | $1.54M | 2,947,552 |
| & Jean Douglas Irrevocable Descendants Trust James 10% owner | Jul 23, 2012 | Buy | +47,190 | $38.23 | $1.80M | 3,379,406 |
| & Jean Douglas Irrevocable Descendants Trust James 10% owner | Jul 23, 2012 | Buy | +57,200 | $38.23 | $2.19M | 2,907,552 |
| & Jean Douglas Irrevocable Descendants Trust James 10% owner | Jul 23, 2012 | Buy | +24,310 | $38.23 | $929.37K | 1,765,385 |
| & Jean Douglas Irrevocable Descendants Trust James 10% owner | Jul 23, 2012 | Buy | +14,300 | $38.23 | $546.69K | 1,016,846 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 20, 2012 | Buy | +40,000 | $37.12 | $1.48M | 2,850,352 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 20, 2012 | Buy | +33,000 | $37.12 | $1.22M | 3,332,216 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 20, 2012 | Buy | +17,000 | $37.12 | $631.04K | 1,741,075 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 20, 2012 | Buy | +10,000 | $37.12 | $371.20K | 1,002,546 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 19, 2012 | Buy | +28,441 | $37.02 | $1.05M | 1,724,075 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 19, 2012 | Buy | +16,730 | $37.02 | $619.34K | 992,546 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 19, 2012 | Buy | +55,209 | $37.02 | $2.04M | 3,299,216 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 19, 2012 | Buy | +66,920 | $37.02 | $2.48M | 2,810,352 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 18, 2012 | Buy | +3,270 | $35.82 | $117.13K | 975,816 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 18, 2012 | Buy | +5,559 | $35.82 | $199.12K | 1,695,634 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 18, 2012 | Buy | +10,791 | $35.82 | $386.53K | 3,244,007 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 18, 2012 | Buy | +13,080 | $35.82 | $468.53K | 2,743,432 |
| 2010 Annuity Trust V. MMD 10% owner | Jul 11, 2012 | Buy | +40,000 | $33.84 | $1.35M | 2,730,352 |
| 2010 Annuity Trust V. MMD 10% owner | Jul 11, 2012 | Buy | +33,000 | $33.84 | $1.12M | 3,233,216 |
| 2010 Annuity Trust V. MMD 10% owner | Jul 11, 2012 | Buy | +17,000 | $33.84 | $575.28K | 1,690,075 |
| 2010 Annuity Trust V. MMD 10% owner | Jul 11, 2012 | Buy | +10,000 | $33.84 | $338.40K | 972,546 |
| 2010 Annuity Trust V. MMD 10% owner | Jul 10, 2012 | Buy | +33,000 | $36.28 | $1.20M | 3,200,216 |
| 2010 Annuity Trust V. MMD 10% owner | Jul 10, 2012 | Buy | +17,000 | $36.28 | $616.76K | 1,673,075 |
| 2010 Annuity Trust V. MMD 10% owner | Jul 10, 2012 | Buy | +10,000 | $36.28 | $362.80K | 962,546 |
| 2010 Annuity Trust V. MMD 10% owner | Jul 10, 2012 | Buy | +40,000 | $36.28 | $1.45M | 2,690,352 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 6, 2012 | Buy | +26,560 | $36.62 | $972.63K | 2,650,352 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 6, 2012 | Buy | +6,640 | $36.62 | $243.16K | 952,546 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 6, 2012 | Buy | +11,288 | $36.62 | $413.37K | 1,656,075 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 6, 2012 | Buy | +21,912 | $36.62 | $802.42K | 3,167,216 |
| 2010 Annuity Trust V. KGD 10% owner | Jul 5, 2012 | Buy | +3,360 | $37.49 | $125.97K | 945,906 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of float
2.67%
0M shares short
Days to cover
1.9
At 0M shares a day
Change since last report
-6.2%
From 0M shares
Short volume, 15 days
24.2%
Of volume reported to FINRA
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Aetherion Technologies's stock actually held short. No settlement fails above the SEC's reporting threshold in the last 90 days.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Larkin William E Officer | Sep 16, 2025 | 35,170 | $83.35K | Sep 16, 2025 | Purchase |
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