Latest Period
Q1 2026
Security Snapshot
Ambiq Micro, Inc. - COMMON STOCK (AMBQ) Institutional Ownership
CUSIP: 023193105
13F Institutional Holders and Ownership History from Q3 2025 to Q2 2026
Institutions Reporting
97
Shares (Excl. Options)
10,993,196
Price
$25.41
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- Security type / class
- Equity / COMMON STOCK
- Symbol
- AMBQ on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 10,993,196
- Total 13F value
- $281,512,037
- Portfolio coverage rank
- 0%
- Share change
- +5,669,696
- Value change
- +$143,104,195
- Number of holders
- 97
- Shares outstanding
- 21,125,850
- SEC-reported price per share
- $88.30
- Insider filing price
- $88.30
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- AMBQ - Ambiq Micro, Inc. - COMMON STOCK is tracked under CUSIP 023193105.
- 97 institutions reported positions in Q1 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 97 to 3 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $281,512,037 to $7,222,852.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 97 institutions filings for Q1 2026.
Security key
023193105
Latest holder period
Q1 2026
13F holders
97
13D/G owners
2
CIK / CUSIP context first
Open Q1 2026 holders
AMBQ full holder history
Ambiq Micro, Inc. SEC filings
Ambiq Micro, Inc. company facts
Ambiq Micro, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 023193105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
Security
AMBQ
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Kleiner Perkins Caufield & Byers XVI, LLC | 8.2% | $44,549,354 | 1,488,949 | KPCB XVI Associates, LLC | 30 Sep 2025 | |||
| T. Rowe Price Investment Management, Inc. | 6% | $36,530,820 | 1,267,551 | T. Rowe Price Investment Management, Inc. | 31 Mar 2026 |
As of 31 Mar 2026, 97 institutional investors reported holding 10,993,196 shares of Ambiq Micro, Inc. - COMMON STOCK (AMBQ). This represents 52% of the company’s total 21,125,850 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
46%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 6% | 1,267,551 | 0.02% | $32,209,000 | |
| BlackRock, Inc. | 4.8% | 1,013,161 | +229% | 0% | $25,744,421 |
| Atreides Management, LP | 4.1% | 862,175 | +24% | 0.53% | $21,907,867 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.3% | 707,404 | 0% | 0% | $17,975,136 |
| ALLIANCEBERNSTEIN L.P. | 3.2% | 686,098 | +74% | 0.01% | $19,553,793 |
| Schonfeld Strategic Advisors LLC | 3.1% | 656,552 | +196% | 0.14% | $16,682,985 |
| FRANKLIN RESOURCES INC | 2.6% | 542,216 | +76% | 0% | $13,777,709 |
| GOLDMAN SACHS GROUP INC | 2% | 413,426 | +213% | 0% | $10,505,155 |
| Driehaus Capital Management LLC | 1.8% | 380,768 | 0.07% | $9,675,315 | |
| GEODE CAPITAL MANAGEMENT, LLC | 1.4% | 297,548 | +186% | 0% | $7,561,896 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 1.3% | 282,373 | +50% | 0.05% | $7,175,098 |
| First Eagle Investment Management, LLC | 1.3% | 279,073 | +47% | 0.01% | $7,091,245 |
| STATE STREET CORP | 1.2% | 260,227 | +208% | 0% | $6,612,368 |
| WASATCH ADVISORS LP | 1.2% | 254,303 | +17% | 0.04% | $6,461,839 |
| Polar Asset Management Partners Inc. | 0.95% | 201,335 | +672% | 0.12% | $5,115,922 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 0.95% | 200,000 | 0.26% | $5,082,000 | |
| S SQUARED TECHNOLOGY, LLC | 0.91% | 192,773 | 1.9% | $4,898,362 | |
| MILLENNIUM MANAGEMENT LLC | 0.84% | 177,556 | +186% | 0% | $4,511,698 |
| UBS Group AG | 0.78% | 165,837 | +363% | 0% | $4,213,919 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 0.75% | 158,901 | 0% | 0% | $4,037,674 |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | 0.74% | 155,597 | +26% | 0.18% | $3,953,720 |
| SOFTBANK GROUP CORP. | 0.71% | 148,939 | 0% | 0.03% | $3,784,540 |
| Roubaix Capital, LLC | 0.6% | 125,821 | 1.5% | $3,197,112 | |
| NORTHERN TRUST CORP | 0.52% | 110,847 | +446% | 0% | $2,816,623 |
| GILDER GAGNON HOWE & CO LLC | 0.52% | 109,577 | +17% | 0.03% | $2,784,352 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
4
Latest
Q1 2026
Rows shown
1-4 of 4
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 81,799 | $7,222,852 | -$15,233,075 | $88.30 | 3 |
| 2026 Q1 | 10,993,196 | $281,512,037 | +$143,104,195 | $25.41 | 97 |
| 2025 Q4 | 4,714,304 | $134,369,149 | -$3,072,808 | $28.50 | 74 |
| 2025 Q3 | 4,494,661 | $134,481,888 | +$134,453,763 | $29.92 | 71 |