ALMU
AELUMA (ALMU)
NASDAQ
$26.15-$0.41 (-1.54%)
Price as of Jun 03, 2026 7:51 PM EDT
  • $395.0M
    Market Cap
  • 39.06%
    1-Year Change
  • Semiconductors
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
6.07%
859,707
+35,522 (+4.13%)
Mar 31, 2026
VANGUARD GROUP INC
6.05%
857,011
+418,045 (+48.78%)
Dec 31, 2025
N/A
4.15%
588,751
+588,751 (+100.00%)
Mar 31, 2026
MILLENNIUM MANAGEMENT LLC
2.81%
398,299
+251,105 (+63.04%)
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
2.08%
295,322
+9,590 (+3.25%)
Mar 31, 2026
RAYMOND JAMES FINANCIAL INC
1.89%
267,572
+247,844 (+92.63%)
Mar 31, 2026
STATE STREET CORP
1.75%
247,345
+33,940 (+13.72%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions14.8M (70.92%)
  • Insiders4.9M (23.40%)
  • Mutual Funds1.2M (5.68%)
  • Other0 (0.00%)

Insider Transactions

  • 23.40% (4.9M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 3
    Number of InsiderSelling (last 12 months)
  • $1.6B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Klamkin Jonathan
Chief Executive Officer
Gift
Jun 01, 2026
$0.00
20,000
$0.00
1.4M
Klamkin Jonathan
Chief Executive Officer
Gift
Jun 01, 2026
$0.00
20,000
$0.00
22,403
Klamkin Jonathan
Chief Executive Officer
Sell
Jun 01, 2026
$19,968.03
900
$22.19
21,503
Klamkin Jonathan
Chief Executive Officer
Sell
Jun 01, 2026
$32,649.40
1,400
$23.32
20,103
Klamkin Jonathan
Chief Executive Officer
Sell
Jun 01, 2026
$192,642.29
7,900
$24.39
12,203
Klamkin Jonathan
Chief Executive Officer
Sell
Jun 01, 2026
$40,189.60
1,600
$25.12
10,603
Klamkin Jonathan
Chief Executive Officer
Sell
Jun 01, 2026
$215,211.46
8,200
$26.25
2,403
Klamkin Jonathan
Chief Executive Officer
Gift
May 01, 2026
$0.00
20,000
$0.00
1.4M
Klamkin Jonathan
Chief Executive Officer
Gift
May 01, 2026
$0.00
20,000
$0.00
22,403
Klamkin Jonathan
Chief Executive Officer
Sell
May 01, 2026
$104,056.56
4,300
$24.20
18,103
Klamkin Jonathan
Chief Executive Officer
Sell
May 01, 2026
$377,834.07
15,024
$25.15
3,079
Klamkin Jonathan
Chief Executive Officer
Sell
May 01, 2026
$17,381.65
676
$25.71
2,403
Klamkin Jonathan
Chief Executive Officer
Gift
Apr 01, 2026
$0.00
20,000
$0.00
1.4M
Klamkin Jonathan
Chief Executive Officer
Gift
Apr 01, 2026
$0.00
20,000
$0.00
22,403
Klamkin Jonathan
Chief Executive Officer
Sell
Mar 04, 2026
$501,350.37
28,206
$17.77
1.5M
Klamkin Jonathan
Chief Executive Officer
Gift
Mar 04, 2026
$0.00
50,000
$0.00
1.4M
Klamkin Jonathan
Chief Executive Officer
Sell
Mar 04, 2026
$401,249.33
21,794
$18.41
1.4M
Klamkin Jonathan
Chief Executive Officer
Gift
Mar 04, 2026
$0.00
50,000
$0.00
52,403
Denbaars Steven
Sell
Feb 26, 2026
$198,093.75
12,500
$15.85
385,088
Denbaars Steven
Sell
Feb 25, 2026
$219,766.25
12,500
$17.58
397,588
Tompkins Mark N.
Sell
Feb 04, 2026
$417,598.72
28,544
$14.63
1.8M
Tompkins Mark N.
Sell
Feb 04, 2026
$90,054.72
5,956
$15.12
1.8M
Tompkins Mark N.
Sell
Jan 22, 2026
$524,135.90
29,038
$18.05
1.9M
Tompkins Mark N.
Sell
Jan 22, 2026
$18,095.22
962
$18.81
1.9M
Tompkins Mark N.
Sell
Jan 21, 2026
$561,674.56
30,328
$18.52
2.0M
Tompkins Mark N.
Sell
Jan 21, 2026
$249,877.10
12,947
$19.30
2.0M
Tompkins Mark N.
Sell
Jan 21, 2026
$35,054.60
1,715
$20.44
1.9M
Tompkins Mark N.
Sell
Jan 21, 2026
$212.40
10
$21.24
1.9M
Tompkins Mark N.
Sell
Jan 20, 2026
$601,453.92
29,112
$20.66
2.0M
Tompkins Mark N.
Sell
Jan 20, 2026
$19,163.04
888
$21.58
2.0M