Security key
023193105
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 483,194
- Total 13F value
- $42,665,623
- Share change
- +161,808
- SEC-reported price per share
- $88.30
- Number of holders
- 22
- Value change
- +$14,288,424
- Number of buys
- 16
- Number of sells
- 8
- Shares outstanding
- 23,864,000
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
22
Top holders
10
AMBQ full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q1 2026
Ambiq Micro, Inc. SEC filings
Ambiq Micro, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 023193105
Recent filing periods:
Ownership snapshot
Top reported holders of AMBQ - Ambiq Micro, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Kleiner Perkins Caufield ...
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
30 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 8.2%
13D/G row: Kleiner Perkins Caufield & Byers XVI, LLC
Showing 1-6 of 15 holder rows.
Quick read
Kleiner Perkins Caufield & Byers XVI, LLC leads the comparable SEC ownership view at 8.2%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Kleiner Perkins Caufield & Byers XVI, LLC's linked filing trail.
Comparable ownership
Top 5
Kleiner Perkins Caufield & Byers ...
8.2%
T. Rowe Price Investment Manageme...
6%
BlackRock, Inc.
5.3%
Wen Hsuan Hsieh
2.7%
Michele Kim Connors
0.25%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Kleiner Perkins Caufield & Byers XVI, LLC |
13D/G
KPCB XVI Associates, LLC
|
8.2%
|
$44,549,354
1,488,949 shares
|
$0 | 30 Sep 2025 |
| T. Rowe Price Investment Management, Inc. |
13D/G
13F
Company
|
6%
|
$36,530,820
1,267,551 shares
|
$0 | 31 Mar 2026 |
| BlackRock, Inc. |
13D/G
13F
Company
|
5.3%
|
$111,681,134
1,264,792 shares
|
$0 | 30 Jun 2026 |
| Wen Hsuan Hsieh |
3/4/5
Director
|
2.7%
|
$16,233,864
638,877 shares
|
— | 08 Jun 2026 |
| Michele Kim Connors |
3/4/5
General Counsel
|
0.25%
|
$1,613,818
60,554 shares
|
-$21,210 | 02 Apr 2026 |
| Joseph A. Tautges |
3/4/5
Director
|
0.23%
|
$1,364,593
53,703 shares
|
-$241,800 | 08 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
22
Shares
483,194
Rows available
22
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
97
Q2 2026 holders
22
Holder diff
-75
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend