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Aeluma, Inc.

ALMU Net selling
CIK 0001828805 #3681 in the set updated 18 Sep 2026
Bought (120 mo)
$1.16M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$26.31M
$6.67M on a plan · $0.00 straight out of an exercise
Sold at will
$19.63M
67 of 89 sales
Net
−$25.14M
−$18.47M against sales at will

By person

8 insiders · 94 transactions
67.6×

Jonathan Klamkin holds 67.6 times base salary in stock. $18.37M of shares against $271.67K in salary for 2025.

Salary from the company's own proxy. The shares are what Jonathan Klamkin last reported holding, valued at $13.82, the price Common Stock was last bought or sold at on the open market here, on 27 Aug 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Tompkins Mark N.
Former 10% Owner
$965.00K (3)
$19.29M (64)
−$18.32M
1,790,488
9.78%
$24.74M
−62.3%
Klamkin Jonathan
Chief Executive Officer
—
$5.75M (16) scheduled
−$5.75M
1,329,398
7.26%
$18.37M
—
Denbaars Steven
Director
$200.00K (1)
$1.27M (8) scheduled
−$1.07M
345,209
1.89%
$4.77M
+935.6%
McCarthy Lee
10% owner
—
$3.96K (1)
−$3.96K
977,425
5.34%
$13.50M
—
Jacobs Ian Seth
Former Director and Officer
—
—
—
200,000
1.09%
$2.76M
−20.0%
ENSLEY CRAIG H
Director
—
—
—
27,300
0.1491%
$377.17K
+63.8%
Paglia John Kenneth
Director
—
—
—
23,361
0.1276%
$322.75K
+86.9%
Byron Michael
Director
—
—
—
13,343
0.0729%
$184.34K
—

Individual transactions

94
Insider
Date
Role
Action
Shares
Price
Amount
Denbaars Steven
27 Aug 2026
Director
Sell
12,500
$13.82
$172.70K
Denbaars Steven
26 Aug 2026
Director
Sell
12,500
$13.84
$173.04K
Klamkin Jonathan
3 Aug 2026
Chief Executive Officer
Sold on a plan
15,810
$16.85
$266.38K
Klamkin Jonathan
3 Aug 2026
Chief Executive Officer
Sold on a plan
4,190
$16.29
$68.26K
Klamkin Jonathan
1 Jul 2026
Chief Executive Officer
Sold on a plan
100
$21.56
$2.16K
Klamkin Jonathan
1 Jul 2026
Chief Executive Officer
Sold on a plan
19,900
$21.08
$419.51K
Klamkin Jonathan
1 Jun 2026
Chief Executive Officer
Sold on a plan
8,200
$26.25
$215.21K
Klamkin Jonathan
1 Jun 2026
Chief Executive Officer
Sold on a plan
1,600
$25.12
$40.19K
Klamkin Jonathan
1 Jun 2026
Chief Executive Officer
Sold on a plan
7,900
$24.39
$192.64K
Klamkin Jonathan
1 Jun 2026
Chief Executive Officer
Sold on a plan
1,400
$23.32
$32.65K
Klamkin Jonathan
1 Jun 2026
Chief Executive Officer
Sold on a plan
900
$22.19
$19.97K
Denbaars Steven
20 May 2026
Director
Sold on a plan
942
$21.30
$20.06K
Denbaars Steven
20 May 2026
Director
Sold on a plan
11,558
$20.40
$235.73K
Denbaars Steven
19 May 2026
Director
Sold on a plan
5,085
$20.61
$104.81K
Denbaars Steven
19 May 2026
Director
Sold on a plan
7,415
$19.56
$145.03K
Klamkin Jonathan
1 May 2026
Chief Executive Officer
Sold on a plan
676
$25.71
$17.38K
Klamkin Jonathan
1 May 2026
Chief Executive Officer
Sold on a plan
15,024
$25.15
$377.83K
Klamkin Jonathan
1 May 2026
Chief Executive Officer
Sold on a plan
4,300
$24.20
$104.06K
Klamkin Jonathan
1 Apr 2026
Chief Executive Officer
Sold on a plan
20,000
$13.10
$261.95K
Klamkin Jonathan
4 Mar 2026
Chief Executive Officer
Sold on a plan
21,794
$18.41
$401.25K
Klamkin Jonathan
4 Mar 2026
Chief Executive Officer
Sold on a plan
28,206
$17.77
$501.35K
Denbaars Steven
26 Feb 2026
Director
Sold on a plan
12,500
$15.85
$198.09K
Denbaars Steven
25 Feb 2026
Director
Sold on a plan
12,500
$17.58
$219.77K
Tompkins Mark N.
4 Feb 2026
Former 10% Owner
Sell
5,956
$15.12
$90.05K
Tompkins Mark N.
4 Feb 2026
Former 10% Owner
Sell
28,544
$14.63
$417.60K
Tompkins Mark N.
2 Feb 2026
10% owner
Sell
37,500
$15.74
$590.25K
Tompkins Mark N.
30 Jan 2026
10% owner
Sell
908
$16.79
$15.25K
Tompkins Mark N.
30 Jan 2026
10% owner
Sell
24,092
$15.88
$382.58K
Tompkins Mark N.
29 Jan 2026
10% owner
Sell
5,203
$17.16
$89.28K
Tompkins Mark N.
29 Jan 2026
10% owner
Sell
27,297
$16.75
$457.22K
Tompkins Mark N.
22 Jan 2026
10% owner
Sell
962
$18.81
$18.10K
Tompkins Mark N.
22 Jan 2026
10% owner
Sell
29,038
$18.05
$524.14K
Tompkins Mark N.
21 Jan 2026
10% owner
Sell
10
$21.24
$212.40
Tompkins Mark N.
21 Jan 2026
10% owner
Sell
1,715
$20.44
$35.05K
Tompkins Mark N.
21 Jan 2026
10% owner
Sell
12,947
$19.30
$249.88K
Tompkins Mark N.
21 Jan 2026
10% owner
Sell
30,328
$18.52
$561.67K
Tompkins Mark N.
20 Jan 2026
10% owner
Sell
888
$21.58
$19.16K
Tompkins Mark N.
20 Jan 2026
10% owner
Sell
29,112
$20.66
$601.45K
Tompkins Mark N.
26 Dec 2025
10% owner
Sell
2,662
$18.39
$48.95K
Tompkins Mark N.
26 Dec 2025
10% owner
Sell
20,368
$18.01
$366.83K
Tompkins Mark N.
26 Dec 2025
10% owner
Sell
6,970
$16.91
$117.86K
Tompkins Mark N.
24 Dec 2025
10% owner
Sell
15,000
$16.05
$240.75K
Tompkins Mark N.
23 Dec 2025
10% owner
Sell
15,000
$14.87
$223.05K
Tompkins Mark N.
22 Dec 2025
10% owner
Sell
35,000
$14.83
$519.05K
Tompkins Mark N.
19 Dec 2025
10% owner
Sell
30,000
$14.70
$441.00K
Tompkins Mark N.
18 Dec 2025
10% owner
Sell
20,000
$14.37
$287.40K
Tompkins Mark N.
10 Dec 2025
10% owner
Sell
20,000
$17.49
$349.80K
Tompkins Mark N.
9 Dec 2025
10% owner
Sell
19,139
$17.06
$326.51K
Tompkins Mark N.
9 Dec 2025
10% owner
Sell
10,861
$16.39
$178.01K
Tompkins Mark N.
8 Dec 2025
10% owner
Sell
988
$16.87
$16.67K
Tompkins Mark N.
8 Dec 2025
10% owner
Sell
39,012
$16.04
$625.75K
Tompkins Mark N.
5 Dec 2025
10% owner
Sell
1,610
$16.49
$26.55K
Tompkins Mark N.
5 Dec 2025
10% owner
Sell
28,390
$16.12
$457.65K
Tompkins Mark N.
4 Dec 2025
10% owner
Sell
18,500
$16.37
$302.85K
Tompkins Mark N.
4 Dec 2025
10% owner
Sell
11,500
$15.49
$178.14K
Tompkins Mark N.
20 Oct 2025
10% owner
Sell
37,500
$16.39
$614.63K
Tompkins Mark N.
17 Oct 2025
10% owner
Sell
743
$18.45
$13.71K
Tompkins Mark N.
17 Oct 2025
10% owner
Sell
5,913
$17.77
$105.07K
Tompkins Mark N.
17 Oct 2025
10% owner
Sell
33,344
$16.75
$558.51K
Tompkins Mark N.
16 Oct 2025
10% owner
Sell
810
$20.72
$16.78K
Tompkins Mark N.
16 Oct 2025
10% owner
Sell
6,650
$19.96
$132.73K
Tompkins Mark N.
16 Oct 2025
10% owner
Sell
17,540
$18.97
$332.73K
Tompkins Mark N.
15 Oct 2025
10% owner
Sell
15,853
$21.31
$337.83K
Tompkins Mark N.
15 Oct 2025
10% owner
Sell
24,147
$20.11
$485.60K
Tompkins Mark N.
14 Oct 2025
10% owner
Sell
36,855
$19.86
$731.94K
Tompkins Mark N.
13 Oct 2025
10% owner
Sell
300
$17.57
$5.27K
Tompkins Mark N.
13 Oct 2025
10% owner
Sell
35,031
$16.97
$594.48K
Tompkins Mark N.
10 Oct 2025
10% owner
Sell
4,413
$17.16
$75.73K
Tompkins Mark N.
10 Oct 2025
10% owner
Sell
30,587
$16.60
$507.74K
Tompkins Mark N.
9 Oct 2025
10% owner
Sell
1,000
$17.25
$17.25K
Tompkins Mark N.
9 Oct 2025
10% owner
Sell
35,908
$16.54
$593.92K
Tompkins Mark N.
8 Oct 2025
10% owner
Sell
700
$18.14
$12.70K
Tompkins Mark N.
8 Oct 2025
10% owner
Sell
34,300
$17.46
$598.88K
Tompkins Mark N.
7 Oct 2025
10% owner
Sell
400
$19.16
$7.66K
Tompkins Mark N.
7 Oct 2025
10% owner
Sell
7,907
$18.66
$147.54K
Tompkins Mark N.
7 Oct 2025
10% owner
Sell
26,693
$17.46
$466.06K
Tompkins Mark N.
6 Oct 2025
10% owner
Sell
63,604
$18.70
$1.19M
Tompkins Mark N.
3 Oct 2025
10% owner
Sell
12,958
$17.94
$232.47K
Tompkins Mark N.
3 Oct 2025
10% owner
Sell
18,189
$17.30
$314.67K
Tompkins Mark N.
2 Oct 2025
10% owner
Sell
120
$17.58
$2.11K
Tompkins Mark N.
2 Oct 2025
10% owner
Sell
34,880
$17.10
$596.45K
Tompkins Mark N.
1 Oct 2025
10% owner
Sell
41,367
$16.97
$702.00K
Tompkins Mark N.
1 Oct 2025
10% owner
Sell
9,133
$16.39
$149.69K
Tompkins Mark N.
30 Sep 2025
10% owner
Sell
200
$17.54
$3.51K
Tompkins Mark N.
30 Sep 2025
10% owner
Sell
33,380
$16.18
$540.09K
Tompkins Mark N.
29 Sep 2025
10% owner
Sell
1,618
$18.36
$29.71K
Tompkins Mark N.
29 Sep 2025
10% owner
Sell
23,382
$17.52
$409.65K
Klamkin Jonathan
14 Aug 2025
Chief Executive Officer
Sold on a plan
150,000
$18.85
$2.83M
Tompkins Mark N.
27 Mar 2025
10% owner
Exercised, kept
200,000
$3.50
$700.00K
McCarthy Lee
17 Feb 2023
10% owner
Sell
649,570
$0.01
$3.96K
Tompkins Mark N.
22 Dec 2022
10% owner
Buy
83,333
$3.00
$250.00K
Tompkins Mark N.
25 Jun 2021
10% owner
Buy
107,500
$2.00
$215.00K
Denbaars Steven
22 Jun 2021
Director
Buy
100,000
$2.00
$200.00K
Tompkins Mark N.
22 Jun 2021
10% owner
Buy
250,000
$2.00
$500.00K

What was left out

Form 4 filings counted 39
Amendments (4/A) skipped 3
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 22
Sales straight out of an exercise 0
Sales at will 67
Transactions with no price 0
Shares from compensation/vesting 9,557,096
History held since 23 Jun 2021