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Amber Semiconductor, Inc.

AmberSemi develops power delivery technology for processors in AI data centers.

Updated Nov 10, 2026·Latest SEC filing Mar 19, 2026·Suggest an edit

About AmberSemi

AmberSemi is a private company based in Dublin, California. It has reported $31,085,148 raised in six offerings on Form D since May 2018. Its chief executive is Thar Casey.

Funding Rounds (SEC Form D)

First saleFiled with SECAmount soldInvestorsAvg. checkTermsFiling
Feb 26, 2026Mar 19, 2026$9,350,796of $15.0M target50$187KEquityRule 506(b)Form D ↗
Mar 13, 2025Mar 18, 2025$250,000of $10.0M target1$250KCONVERTIBLE NOTESRule 506(b)Form D ↗
Apr 2, 2024Apr 4, 2024amended Mar 7, 2025$6,750,000fully sold17$397Kconvertible notesRule 506(b)Form D/A ↗1 earlier filing
Oct 3, 2022Oct 17, 2022amended Nov 21, 2023$5,888,000of $10.0M target16$368KCONVERTIBLE NOTESRule 506(b)Form D/A ↗1 earlier filing
Aug 20, 2019Aug 23, 2019amended Oct 28, 2020$5,465,000of $10.0M target26$210KCONVERTIBLE NOTESRule 506(b)Form D/A ↗2 earlier filings
May 1, 2018May 16, 2018$3,381,352of $7.8M target28$120KEquity, Debt, Options, Securities on exerciseRule 506(b)Form D ↗
Total, six offerings$31,085,148

First sale is the date the first investor in the offering committed to invest. Companies must file Form D within 15 days of that date, so filing dates run later.

Leadership Team

Executive officers and directors listed on AmberSemi's Form D filed Mar 19, 2026.

TC
Thar Casey
Founder and CEO, director
MK

Earlier filings also listed Mark Telefus (director, last listed Mar 2025) and Bin Jiang (executive officer, last listed Mar 2025).

Sources

  1. SECAMBER SEMICONDUCTOR, INC. Form D, filed Apr 4, 2024
  2. SECAMBER SEMICONDUCTOR, INC. Form D, filed Oct 17, 2022
  3. SECAMBER SEMICONDUCTOR, INC. Form D/A, filed Aug 6, 2020
  4. SECAMBER SEMICONDUCTOR, INC. Form D, filed Aug 23, 2019
  5. SECAMBER SEMICONDUCTOR, INC. filing history
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