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Ambiq Micro, Inc.

AMBQ
Exchange
NYSE
Industry
Semiconductors & Related Devices
SEC CIK
0001500412

In the last 90 days, Ambiq Micro, Inc. insiders filed 0 open-market purchases and 10 sales; 184 institutions reported holding it in 13F filings for Q2 2026, worth $1.48B in total; no superinvestor holds it.

Q1 2026 vs. Q4 2025

How the institutions holding Ambiq Micro, Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of AMBQ: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders75297+24
Shares4.71M348.2K11.0M+6.63M (+151.8%)
Value$134.4M$9.92M$281.5M+$157.1M (+126.2%)

2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (36)

Institutions that held Ambiq Micro, Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to AMBQ in Q1 2026
InstitutionSharesValue% of portfolio
T. Rowe Price Investment Management, Inc.1,267,551$32.2M0.02%
Vanguard Capital Management LLC707,404$18.0M0.00%
Driehaus Capital Management LLC380,768$9.68M0.07%
Needham Investment Management LLC200,000$5.08M0.26%
S Squared Technology, LLC192,773$4.90M1.85%
Vanguard Portfolio Management LLC158,901$4.04M0.00%
Roubaix Capital, LLC125,821$3.20M1.49%
Vanguard Fiduciary Trust Co65,042$1.65M0.00%
Lazard Asset Management LLC64,247$1.63M0.00%
CenterBook Partners LP55,568$1.41M0.08%
Renaissance Technologies LLC42,600$1.08M0.00%
Two Sigma Investments, LP36,794$934.9K0.00%
Nuveen, LLC35,721$907.7K0.00%
Stifel Financial Corp27,695$703.7K0.00%
Capital Asset Advisory Services LLC18,928$664.8K0.03%
XTX Topco Ltd24,854$631.5K0.01%
TD Asset Management Inc23,770$604.0K0.00%
HighTower Advisors, LLC21,652$550.2K0.00%
Toronado Partners, LLC21,222$539.3K1.02%
Essex Investment Management Co LLC19,216$488.3K0.08%
Perpetual Ltd16,649$423.1K0.01%
Price T Rowe Associates Inc14,936$381.0K0.00%
Quadrature Capital Ltd11,052$280.8K0.00%
MetLife Investment Management10,169$258.4K0.00%
Squarepoint Ops LLC8,988$228.4K0.00%
Vanguard Global Advisers, LLC3,131$79.6K0.00%
Aquatic Capital Management LLC779$19.8K0.00%
UBS Asset Management Americas Inc227$5.77K0.00%
Caitong International Asset Management Co., Ltd192$4.88K0.00%
Simplex Trading, LLC33$8380.00%
Farther Finance Advisors, LLC19$5120.00%
MAI Capital Management20$5090.00%
Zions Bancorporation, National Association17$4320.00%
SRS Capital Advisors, Inc.5$1270.00%
Root Financial Partners, LLC4$1020.00%
True Wealth Design, LLC1$260.00%

Sold out (12)

Institutions that held Ambiq Micro, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of AMBQ in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Kadensa Capital Ltd394,991$11.3M
Maverick Capital LtdSuperinvestorMaverick Capital59,248$1.69M
Seven Grand Managers, LLC50,000$1.43M
PEAK6 LLC35,835$1.02M
Tudor Investment Corp Et Al26,976$768.8K
Hound Partners, LLC20,000$570.0K
D. E. Shaw & Co., Inc.19,574$557.9K
Quarry LP304$8.66K
Amalgamated Bank146$4.00K
Nisa Investment Advisors, LLC12$342
IFP Advisors, Inc1$28
Coston, McIsaac & Partners1$0

Not filed for Q1 2026 yet (2)

Institutions that held Ambiq Micro, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding AMBQ in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Vanguard Group Inc328,182$9.35M
Norges Bank20,000$570.0K