Ambiq Micro
AMBQ
61.98
-1.26
-1.99%
Ambiq Micro
US · AMBQ
#2941 by market cap
Listed 2025
61.98
-1.26
-1.99%
Live - 5344 symbols - heartbeat 549s ago
· 2026-10-08 07:29
Pre-market
60.50
-2.39%
After-hours
61.98
0.00%
Overnight
61.59
-0.63%
- Market cap
- 1.50B
- P/E (TTM)i
- -40.48
- P/Bi
- 3.70
- EPSi
- -1.99
- Div yieldi
- 0.00%
- 52W posi
- 57%
Reader sentiment
Are you bullish or bearish on AMBQ?
Anonymous reader poll. Unscientific, not investment advice.
✦ Quant Ownership Signal how this is computed
Distributing
- The number of reporting institutions increased by 3 in the most recent period (2026/Q3).
- Total institutional ownership fell 0.8 percentage points.
Institutional ownership
- Held by institutions
- 86.49% -0.84pp
- Institutions
- 217 +3
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
AlignedInstitutions trimmed shares last reporting period, and the stock has seen net outflows in main-fund flow over the last 20 trading sessions - the two line up.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Mutual Fund40.97%
Hedge Fund22.43%
VC/PE Fund14.60%
Public Company4.31%
Private Company3.19%
Individual/Insider1.79%
Government Pension Fund0.95%
Other11.72%
Top holders as of 2026-06-15
Kleiner Perkins Caufield & Byers LLC
8.61% · 2.08M sh
BlackRock
5.71% · 1.38M sh
T. Rowe Price Group, Inc.
4.81% · 1.16M sh
D. E. Shaw & Co., L.P.
4.07% · 983.92K sh
Atreides Management, LP
3.63% · 877.12K sh
State Street Global Advisors
3.56% · 861.98K sh
Vanguard Capital Management, LLC
3.52% · 851.67K sh
EDB Investments Pte Ltd
3.37% · 814.68K sh
Two Sigma Investments, LP
2.70% · 651.79K sh
Matter
2.62% · 633.92K sh
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 27 buys · 23 sells
| Name | Role | Stake |
|---|---|---|
| Fumihide Esaka | Chief Executive Officer | 0.58% |
| Sean Chen | President | 0.50% |
| Michele Connors | -- | 0.25% |
| Scott Hanson | Co-Founder, CTO, Secretary & Director | 0.24% |
| Timothy Chen | Independent Director | 0.09% |
| Joseph Tautges | Independent Director | 0.08% |
| Jeffrey Winzeler | Chief Financial Officer | 0.05% |
| Ker Zhang | Independent Director | 0.01% |
| Kleiner Perkins Caufield & Byers LLC | -- | -- |
| Wen Hsuan Hsieh | Independent Chairperson | -- |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-10-04 | Sean Chen | President | Intent to Sell (Form 144) | -53,205 | $68.18 |
| 2026-10-01 | Fumihide Esaka | Chief Executive Officer | Intent to Sell (Form 144) | -16,560 | $69.15 |
| 2026-09-14 | Fumihide Esaka | Chief Executive Officer | Derivative Exercise and Sale | -63,500 | $8.12–63.86 |
| 2026-09-14 | Scott Hanson | Co-Founder, CTO, Secretary & Director | Derivative Exercise and Sale | -7,000 | $8.12–61.00 |
| 2026-09-13 | Sean Chen | President | Derivative Exercise and Sale | -15,000 | $8.12–60.83 |
| 2026-09-10 | Ker Zhang | Independent Director | Open Market Disposition | -10,000 | $63.39–63.95 |
| 2026-09-10 | Fumihide Esaka | Chief Executive Officer | Intent to Sell (Form 144) | -50,000 | $63.36 |
| 2026-09-03 | Ker Zhang | Independent Director | Derivative Exercise and Sale | -185 | $5.88–56.92 |
| 2026-09-03 | Ker Zhang | Independent Director | Derivative Exercise and Retained | +1,600 | $5.88 |
| 2026-09-03 | Sean Chen | President | Derivative Exercise and Sale | -15,000 | $8.12–57.68 |
| 2026-09-01 | Fumihide Esaka | Chief Executive Officer | Derivative Exercise and Sale | -73,500 | $8.12–58.52 |
| 2026-08-30 | Fumihide Esaka | Chief Executive Officer | Open Market Disposition | -35,000 | $56.81–58.46 |
| 2026-08-30 | Fumihide Esaka | Chief Executive Officer | Derivative Exercise and Retained | +44,271 | $12.60 |
| 2026-08-26 | Scott Hanson | Co-Founder, CTO, Secretary & Director | Derivative Exercise and Sale | -27,500 | $8.12–60.32 |
| 2026-08-25 | Scott Hanson | Co-Founder, CTO, Secretary & Director | Open Market Disposition | -27,500 | $59.58 |
| 2026-08-25 | Scott Hanson | Co-Founder, CTO, Secretary & Director | Derivative Exercise and Retained | +37,500 | $8.12 |
| 2026-08-13 | Fumihide Esaka | Chief Executive Officer | Derivative Exercise and Sale | -13,500 | $8.12–65.26 |
| 2026-08-13 | Scott Hanson | Co-Founder, CTO, Secretary & Director | Derivative Exercise and Sale | -7,000 | $8.12–65.30 |
| 2026-06-07 | Ker Zhang | Independent Director | Other Acquisition | +4,957 | -- |
| 2026-06-07 | Wen Hsuan Hsieh | Independent Chairperson | Other Acquisition | +4,957 | -- |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-08 07:29:13 · For reference only, not investment advice and not tailored to your situation.