Total buying$00 buys
ALMU
Aeluma, Inc.
NasdaqTechnologySemiconductors & Related Devices
Insider activity for last month from 09/19 to 10/19.
How these metrics are calculated
Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total selling$2.38M2 sells
Net open-market−$2.38MBuying minus selling
Active insiders3Distinct reporting owners
Insider activity report
Calendar-month buckets within the selected date range
Latest filing: Oct 14, 2026
Open-market transaction mix · 2 transactions in the selected period
Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.
View exact monthly counts and disclosed values
| Month | Buys | Sells | Awards (A) | Buy value | Sell value | Net P/S value |
|---|---|---|---|---|---|---|
| Sep 2026 | 0 | 1 | 6 | $0 | $1.33M | -$1.33M |
| Oct 2026 | 0 | 1 | 0 | $0 | $1.05M | -$1.05M |
Distinct insiders active
Reporting-owner CIKs by month · peak Sep 2026 (3)Sep 2026Oct 2026
Largest insider activity
By absolute net disclosed value · current transaction page- KJ-$2.5M
- BM+$148.3k
- SP-$90.1k
ALMU transaction history
Newest filings · 20 transactions per pageLatest insider transactions
Form 4 filings from last month.Filing-only signals
Deterministic matches in the selected period
Filing detail checks
Secondary metrics for the selected periodTransaction codes
By Form 4 transaction code in selected period13transactionstxns
- A · Grants / awards · dominant6 · 46%
- F · Tax withholding3 · 23%
- M · Option exercise2 · 15%
- S · Open-market sells2 · 15%
Activity by reported role
A joint filing can contribute to multiple rolesChief executive officer6
Chief financial officer5
Director2
Reported Holdings After
Separated by insider, security, and ownership type
Stewart Christopher P.Common Stock · Direct
67,781Sep 30, 2026
Klamkin JonathanCommon Stock · Direct
42,302Sep 21, 2026
Klamkin JonathanCommon Stock · Indirect · By Family Trust
1,126,995Oct 12, 2026
Byron MichaelCommon Stock · Direct
38,343Sep 21, 2026
Byron MichaelStock Option (right to buy) · Direct
20,833Sep 21, 2026
Klamkin JonathanStock Option (right to buy) · Direct
75,135Sep 21, 2026
Stewart Christopher P.Stock Option (right to buy) · Direct
37,568Sep 21, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells redSep 19 → Oct 19
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Aeluma, Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Aeluma, Inc.?
Klamkin Jonathan, Stewart Christopher P., Byron Michael.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Klamkin Jonathan reported a sale on Oct 12, 2026 valued at $1.05M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $2,388,750.00. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.