Mark N. Tompkins

ALMU

Mark N. Tompkins serves as Insider at Aeluma, Inc. (ALMU). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

2 trades

$965.0K

Total Sells

28 trades

$21.93M

Net Position

Net Seller

$20.96M

Companies Traded

ALMU, AMST

Active Period

Mar 2021 – Feb 2026

30 total trades

Most Recent

Sell ALMU

Feb 4, 2026 · $507.7K

Mark N. Tompkins's Insider Trading at Aeluma, Inc. (ALMU)

Buys

2 · $965.0K

Sells

13 · $19.29M

Total Shares Bought

440,833

Total Shares Sold

1,124,925

ALMU Price Chart

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Date	Type	Shares	Avg Price	Value
Feb 4, 2026	Sell	34,500	$14.71	$507.7K
Jan 29, 2026	Sell	95,000	$16.15	$1.53M
Jan 20, 2026	Sell	105,000	$19.14	$2.01M
Dec 23, 2025	Sell	60,000	$16.62	$997.4K
Dec 18, 2025	Sell	85,000	$14.68	$1.25M
Dec 9, 2025	Sell	50,000	$17.09	$854.3K
Dec 4, 2025	Sell	100,000	$16.08	$1.61M
Oct 17, 2025	Sell	77,500	$16.67	$1.29M
Oct 15, 2025	Sell	65,000	$20.09	$1.31M
Oct 10, 2025	Sell	107,186	$17.87	$1.92M
Oct 7, 2025	Sell	106,908	$17.25	$1.84M
Oct 2, 2025	Sell	129,751	$18.00	$2.34M
Sep 29, 2025	Sell	109,080	$16.82	$1.83M
Dec 22, 2022	Buy	83,333	$3.00	$250.0K
Jun 22, 2021	Buy	357,500	$2.00	$715.0K

Mark N. Tompkins's Insider Trading at Amesite Inc. (AMST)

Buys

0 · $0.00

Sells

15 · $2.64M

Total Shares Bought

Total Shares Sold

877,064

AMST Price Chart

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Date	Type	Shares	Avg Price	Value
May 28, 2021	Sell	53,316	$2.46	$131.2K
May 25, 2021	Sell	47,497	$2.30	$109.1K
May 20, 2021	Sell	69,871	$2.22	$154.8K
May 17, 2021	Sell	68,225	$2.22	$151.4K
May 12, 2021	Sell	107,424	$2.31	$248.3K
May 7, 2021	Sell	36,622	$2.51	$91.8K
May 4, 2021	Sell	76,133	$2.86	$217.8K
Apr 29, 2021	Sell	61,058	$2.74	$167.4K
Apr 26, 2021	Sell	28,419	$2.95	$83.8K
Apr 15, 2021	Sell	35,627	$3.10	$110.5K
Apr 12, 2021	Sell	54,083	$3.31	$178.9K
Apr 8, 2021	Sell	54,450	$3.57	$194.2K
Apr 5, 2021	Sell	77,828	$4.19	$326.3K
Mar 30, 2021	Sell	86,511	$4.21	$364.4K
Mar 4, 2021	Sell	20,000	$5.62	$112.5K

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