13F reference period
Q2 2026
Security Snapshot
Ambiq Micro, Inc. - Common Stock (AMBQ) Institutional Ownership
CUSIP: 023193105
13F Institutional Holders and Ownership History from Q3 2025 to Q3 2026
Institutions Reporting
181
Shares (Excl. Options)
16.64M
Full value: 16,637,533 · shares · 30 Jun 2026Price
$88.30
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.
Save this security page for your next review
Watchlists follow companies and investors, across their share classes. Bookmark this page to revisit this specific CUSIP and its quarterly holders. If you create an account from here, we will bring you back after verification.
- Security type / class
- Equity / Common Stock
- Symbol
- AMBQ on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 16,637,533
- Total 13F value
- $1,468,444,806
- Portfolio coverage rank
- 0%
- Share change
- +6,130,234
- Value change
- +$567,678,841
- Number of holders
- 181
- Shares outstanding
- 24,301,597
- SEC-reported price per share
- $55.86
- Insider filing price
- $55.86
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
Filing notes and source
Key facts
- AMBQ - Ambiq Micro, Inc. - Common Stock is tracked under CUSIP 023193105.
- 181 institutions reported positions in Q2 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 97 to 181 between Q1 2026 and Q2 2026.
- SEC-reported value moved from to
$281.51M
Full value: $281,512,037 · USD · 31 Mar 2026.$1.47B
Full value: $1,468,444,806 · USD · 30 Jun 2026
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 181 institutions filings for Q2 2026.
Security key
023193105
13F reference period
Q2 2026
13F holders
181
13D/G owners
3
CIK / CUSIP context first
Open Q2 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
3
Security
AMBQ
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 6.7% | +28% | $110,994,383 | +$24,773,892 | 1,628,207 | +29% | BlackRock, Inc. | 30 Sep 2026 |
| 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. | 4.3% | -28% | $88,861,500 | -$23,063,254 | 1,006,359 | -21% | T. Rowe Price Investment Management, Inc. | 30 Jun 2026 |
As of 30 Jun 2026,
181
institutional investors reported holding
shares of
Ambiq Micro, Inc. - Common Stock (AMBQ).
This represents
68%
of the company’s total
outstanding shares.
16.64M
Full value: 16,637,533 · shares · 30 Jun 202624.3M
Full value: 24,301,597 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
47%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5.7% | 1,380,623 | +36% | 0% | $121,909,012 |
| T. Rowe Price Investment Management, Inc. | 4.1% | 1,006,359 | -21% | 0.06% | $88,862,000 |
| D. E. Shaw & Co., Inc. | 4% | 983,916 | 0.05% | $86,879,783 | |
| Atreides Management, LP | 3.6% | 877,123 | +1.7% | 0.69% | $77,449,961 |
| STATE STREET CORP | 3.5% | 861,979 | +231% | 0% | $76,112,746 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.2% | 768,539 | +8.6% | 0% | $67,861,994 |
| TWO SIGMA INVESTMENTS, LP | 2.7% | 651,786 | +1671% | 0.04% | $57,552,704 |
| GOLDMAN SACHS GROUP INC | 1.8% | 446,950 | +8.1% | 0% | $39,465,686 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.4% | 339,327 | +14% | 0% | $29,967,042 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 1.3% | 323,700 | +62% | 0.86% | $28,582,710 |
| Schonfeld Strategic Advisors LLC | 1.3% | 315,455 | -52% | 0.15% | $27,854,676 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 1.3% | 309,096 | +9.5% | 0.18% | $27,293,177 |
| JANE STREET GROUP, LLC | 1.2% | 294,802 | 0.02% | $26,031,016 | |
| MILLENNIUM MANAGEMENT LLC | 1.2% | 289,206 | +63% | 0.02% | $25,536,890 |
| Driehaus Capital Management LLC | 1.2% | 288,979 | -24% | 0.15% | $25,516,846 |
| NEUBERGER BERMAN GROUP LLC | 1.1% | 272,126 | 0.02% | $24,028,726 | |
| First Eagle Investment Management, LLC | 1% | 244,394 | -12% | 0.04% | $21,579,990 |
| EMERALD ADVISERS, LLC | 1% | 243,664 | 0.51% | $21,515,531 | |
| HRT FINANCIAL LP | 0.93% | 225,639 | 0.04% | $19,923,000 | |
| FRANKLIN RESOURCES INC | 0.92% | 223,763 | -59% | 0% | $19,758,273 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 0.92% | 223,276 | 0.08% | $19,715,271 | |
| COOPER CREEK PARTNERS MANAGEMENT LLC | 0.91% | 220,000 | 0.81% | $19,426,000 | |
| RENAISSANCE TECHNOLOGIES LLC | 0.88% | 214,756 | +404% | 0.03% | $18,962,955 |
| Walleye Capital LLC | 0.88% | 214,528 | +1777% | 0.09% | $18,942,822 |
| BNP PARIBAS FINANCIAL MARKETS | 0.84% | 204,181 | 0% | 0.01% | $18,029,182 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
5
Headline period
Q2 2026
Rows shown
1-5 of 5
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 443,067 | $29,851,748 | +$10,683,407 | $68.17 | 34 |
| 2026 Q2 | 16,637,533 | $1,468,444,806 | +$567,678,841 | $88.30 | 181 |
| 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 |