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Jonathan Klamkin

Chief Executive Officer

Director Officer 10% Owner

Latest: Aeluma, Inc. CEO selling · June 2026

3 filings analyzed · 1 company · Latest 2026-06-03

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Companies

Company Buys Sells Direction
Aeluma, Inc. ALMU 0 3 Net selling

Activity

June 2026
2026-06-03 Aeluma, Inc. ALMU 10b5-1 Plan
medium
Sell
20,000 shares
$500,661
Significance 6/10

CEO Jonathan Klamkin sold 20,000 shares (89.3% of holdings) across 5 separate sales for $500,660.78 under 10b5-1 plan

Jonathan Klamkin, Chief Executive Officer, executed 5 separate sales on 2026-06-01 totaling 20,000 shares for $500,660.78 at prices ranging from $22.19 to $26.25, reducing his holdings from 22,403 to 2,403 shares (an 89.3% reduction). This transaction was part of a pre-arranged 10b5-1 trading plan adopted on 2025-12-03, meaning it was scheduled and not discretionary. Aeluma is operating at a significant loss with a net income of $-1,800,000 ($-1.8M) on quarterly revenue of $1,222,000 ($1.2M), despite strong annual revenue growth of +407.9%, and the CEO's near-complete exit of his position warrants investor attention given the company's unprofitable state and the magnitude of the stake reduction.

March 2026
2026-03-05 Aeluma, Inc. ALMU 10b5-1 Plan
low
Sell
50,000 shares
$902,600
Significance 3/10

Aeluma CEO Klamkin sold 50,000 shares for $902.6K via pre-arranged 10b5-1 plan (scheduled, not discretionary).

Jonathan Klamkin, Chief Executive Officer of Aeluma, Inc., executed 2 separate sales totaling 50,000 shares for $902,599.70 on 2026-03-04, reducing his holdings from 1,479,398 shares to 1,429,398 shares. This transaction was conducted under a pre-arranged 10b5-1 trading plan adopted on 2025-12-03, meaning the sales were scheduled and not subject to discretionary timing decisions. The blended average sale price was $18.05 per share. Since this is a scheduled plan execution rather than a discretionary trade, the sale represents a systematic portfolio management action rather than a time-based trading decision by the executive.

August 2025
2025-08-14 Aeluma, Inc. ALMU 10b5-1 Plan
low
Sell
150,000 shares
$2,827,305
Significance 4/10

CEO Klamkin Jonathan sold 150,000 shares of ALMU at $18.85 under 10b5-1 plan; holds 1,479,398 shares post-transaction.

CEO Jonathan Klamkin executed a sale of 150,000 shares at $18.85 on 2025-08-14, reducing his holdings from 1,629,398 shares to 1,479,398 shares. This transaction was conducted under a pre-arranged 10b5-1 trading plan adopted on 2025-05-14, making it a scheduled disposition rather than a discretionary market decision. The sale represents 9.2% of his pre-transaction holdings, a material reduction in personal position size. The CEO retains substantial equity ownership with 1,479,398 shares remaining, indicating continued material alignment with shareholder interests despite the planned liquidation.

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