Ambiq Micro AMBQ Institutional Ownership

NYSE AMBQ

$50.32 +0.66 (+1.33%)

At close: Oct 23, 2026 · 4:00 PM EDT

Institutions by Trading Activity

183 Institutions

Increased 147 80.3%

Unchanged 4 2.2%

Reduced 32 17.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

71.40%

▲+19.93 pp QoQ

Shares Held by Institutions

17.24Mn

of 24.15Mn outstanding

▲+56.83% QoQ

Shares Outstanding

24.15Mn

6.91Mn held outside 13F filers

Institutional Investors

183

filed 13F for Jun 2026

▲+86 vs prior quarter

Net Shares Added (QoQ)

+6.25Mn

accumulated since last quarter

Value of Holdings

$867.56Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 10, 2026

Ambiq Micro, Inc. (NYSE:AMBQ) appeared in the 13F filings of 183 institutional investors for the quarter ended June 30, 2026.

Collectively, these holders controlled 71.40% of Ambiq Micro's outstanding shares in Q2 2026, up from 51.47% in Q1 2026.
Total holdings of AMBQ shares rose 56.83% from Q1 2026.
Of these 183 holders, 147 added to their positions, 32 reduced their stakes and 4 left their positions unchanged.
The aggregate institutional position in Ambiq Micro was 17.24Mn shares at the end of Q2 2026, up 6.25Mn from the prior quarter.
As of June 30, 2026, the biggest holder of Ambiq Micro was BlackRock, Inc. with 1.38Mn shares, or 5.72% of shares outstanding.
The largest position increases in AMBQ for Q2 2026 were by Two Sigma Investments, LP (+614.99K shares), State Street Corp (+601.75K shares), BlackRock, Inc. (+367.46K shares), Walleye Capital LLC (+203.1K shares) and BNP Paribas Financial Markets (+200.29K shares).
Holders that trimmed the most shares of Ambiq Micro in Q2 2026 while keeping a position were Schonfeld Strategic Advisors LLC (-341.1K shares), Franklin Templeton Inc (-318.45K shares), T. Rowe Price Investment Management, Inc. (-261.19K shares), Wasatch Advisors LP (-172.74K shares) and UBS Group AG (-130.05K shares).
Per Business Quant data, the 10 largest holders of Ambiq Micro at the end of Q2 2026 were BlackRock, Inc. (1.38Mn shares), T. Rowe Price Investment Management, Inc. (1.01Mn shares), D. E. Shaw & Co., Inc. (983.92K shares), Atreides Management, LP (877.12K shares), State Street Corp (861.98K shares), Vanguard Capital Management LLC (768.54K shares), Two Sigma Investments, LP (651.79K shares), AllianceBernstein L.P. (609.61K shares), Goldman Sachs Group Inc (446.95K shares) and Geode Capital Management, LLC (339.33K shares).

Form 13F Holdings

183 Institutional Holders

Report period 30 Jun, 2026

Total shares held 17.24Mn

Of outstanding 71.40%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	1,380,623	5.72%	▲367,462	+36.27%	$121.91Mn
2	T. Rowe Price Investment Management, Inc.	0001897612	1,006,359	4.17%	▼261,192	-20.61%	$88.86K
3	D. E. Shaw & Co., Inc.	0001009207	983,916	4.07%	▲983,916	0.00%	$86.88Mn
4	Atreides Management, LP	0001777813	877,123	3.63%	▲14,948	+1.73%	$77.45Mn
5	State Street Corp	0000093751	861,979	3.57%	▲601,752	+231.24%	$76.11Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	768,539	3.18%	▲61,135	+8.64%	$67.86Mn
7	TWO SIGMA INVESTMENTS, LP	0001179392	651,786	2.70%	▲614,992	+1,671.45%	$57.55Mn
8	ALLIANCEBERNSTEIN L.P.	0001109448	609,607	2.52%	▼76,491	-11.15%	$15.49Mn
9	Goldman Sachs Group Inc	0000886982	446,950	1.85%	▲33,524	+8.11%	$39.47Mn
10	GEODE CAPITAL MANAGEMENT, LLC	0001214717	339,327	1.41%	▲41,779	+14.04%	$29.97Mn
11	NEEDHAM INVESTMENT MANAGEMENT LLC	0001167212	323,700	1.34%	▲123,700	+61.85%	$28.58Mn
12	Schonfeld Strategic Advisors LLC	0001665241	315,455	1.31%	▼341,097	-51.95%	$27.85Mn
13	SILVERCREST ASSET MANAGEMENT GROUP LLC	0001232395	309,096	1.28%	▲26,723	+9.46%	$27.29Mn
14	JANE STREET GROUP, LLC	0001595888	294,802	1.22%	▲294,802	0.00%	$26.03Mn
15	MILLENNIUM MANAGEMENT LLC	0001273087	289,206	1.20%	▲111,650	+62.88%	$25.54Mn
16	DRIEHAUS CAPITAL MANAGEMENT LLC	0000938206	288,979	1.20%	▼91,789	-24.11%	$25.52Mn
17	Neuberger Berman Group LLC	0001465109	272,126	1.13%	▲272,126	0.00%	$24.03Mn
18	First Eagle Investment Management, LLC	0001325447	244,394	1.01%	▼34,679	-12.43%	$21.58Mn
19	EMERALD ADVISERS, LLC	0001015083	243,664	1.01%	▲243,664	0.00%	$21.52Mn
20	HRT FINANCIAL LP	0001475597	225,639	0.93%	▲225,639	0.00%	$19.92K

Showing 1 to 20 of 183 holders