Klamkin Jonathan
Chief Executive Officer
Klamkin Jonathan has filed 9 SEC Form 4 filings (38 transaction rows) across 1 company, with disclosures dating back to 2025. 8 of those filings fall inside the rolling window. Most recent filing: Oct 14, 2026.
On the most recent filing, Klamkin Jonathan is listed as Chief Executive Officer at Aeluma, Inc. Inside the rolling window, Klamkin Jonathan reported no open-market purchases and 8 open-market sales totaling $5.3M in ALMU. The largest disclosed transaction in the window is a sale of 100,000 ALMU shares on Sep 21, 2026, worth $1.3M.
Companies traded
Other insiders at ALMU
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$5.3M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| ALMU | Chief Executive Officer | Sale | 100,000 | $1.1M | Oct 14 | SEC ↗ | |
| ALMU | Chief Executive Officer | Sale | 100,000 | $1.3M | Sep 23 | SEC ↗ | |
| ALMU | Chief Executive Officer | Sale | 20,000 | $335K | Aug 5 | SEC ↗ | |
| ALMU | Chief Executive Officer | Sale | 20,000 | $422K | Jul 2 | SEC ↗ | |
| ALMU | Chief Executive Officer | Sale | 20,000 | $501K | Jun 3 | SEC ↗ | |
| ALMU | Chief Executive Officer | Sale | 20,000 | $499K | May 5 | SEC ↗ | |
| ALMU | Chief Executive Officer | Sale | 20,000 | $262K | Apr 3 | SEC ↗ | |
| ALMU | Chief Executive Officer | Sale | 50,000 | $903K | Mar 5 | SEC ↗ |
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Aug 14, 2025 | ALMU | Sale | $2.8M |
Frequently asked questions
How many SEC Form 4 filings has Klamkin Jonathan made?
Klamkin Jonathan has filed 9 SEC Form 4 filings (38 transaction rows) across 1 company since 2025.
Which companies does Klamkin Jonathan trade?
Klamkin Jonathan has filed SEC Form 4 disclosures for 1 company, including ALMU.
When was Klamkin Jonathan's most recent SEC Form 4 filing?
Klamkin Jonathan's most recent SEC Form 4 filing on Tracefour is dated Oct 14, 2026.
What is Klamkin Jonathan's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Klamkin Jonathan is listed as Chief Executive Officer.
What is Klamkin Jonathan's total buy and sell value in the current window?
Inside the rolling retention window, Klamkin Jonathan bought $0 and sold $5.3M based on SEC Form 4 filings.
What was Klamkin Jonathan's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 100,000 ALMU shares on 2026-09-21, worth $1.3M, per SEC Form 4 filings.