Ambiq Micro AMBQ Institutional Ownership

NYSE AMBQ

$59.02 +1.20 (+2.08%)

At close: Aug 21, 2026 · 4:00 PM EDT

Institutions by Trading Activity

96 Institutions

Increased 84 87.5%

Unchanged 6 6.3%

Reduced 6 6.3%

Ownership Statistics

13F · as of 31 Mar, 2026

Institutional Ownership

56.21%

▼-3.81 pp QoQ

Shares Held by Institutions

11.47Mn

of 20.40Mn outstanding

▲+201.92% QoQ

Shares Outstanding

20.40Mn

8.93Mn held outside 13F filers

Institutional Investors

filed 13F for Mar 2026

▲+24 vs prior quarter

Net Shares Added (QoQ)

+7.67Mn

accumulated since last quarter

Value of Holdings

$723.22Mn

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

Quarter ending 31 Mar, 2026

Ambiq Micro, Inc. (NYSE:AMBQ) is held by 96 institutional investors per 13F filings through March 2026.

Their combined ownership stood at 56.2% of outstanding shares in March 2026, down from 60.0% in December 2025.
They increased total shares held in AMBQ by 201.92% quarter over quarter, and investors in Ambiq Micro stayed flat from a year ago.
Of these 96 holders, 84 added to their stakes in Ambiq Micro, 6 trimmed positions, and 6 made no changes.
Institutional investors collectively held 11.47Mn shares in Ambiq Micro as of March 2026, up by 7.67Mn shares quarter on quarter, and with no net change year over year.
As of March 31, 2026, T. Rowe Price Investment Management, Inc. held the largest stake in Ambiq Micro with 1.27Mn shares, accounting for 6.21% of total shares outstanding.
The most significant purchases of AMBQ for the quarter ending March 2026 came from T. Rowe Price Investment Management, Inc. (1.27Mn), VANGUARD CAPITAL MANAGEMENT LLC (707.4K), BlackRock, Inc. (705.26K), Schonfeld Strategic Advisors LLC (434.74K), S SQUARED TECHNOLOGY, LLC (385.55K).
The largest sales of AMBQ for the quarter ending March 2026 came from MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. (13.69K), Morgan Stanley (7.88K), Barclays Plc (3.72K), OSAIC HOLDINGS, INC. (1.26K), SBI Securities Co., Ltd. (405).
Per Business Quant, the top 10 investors in AMBQ for the quarter ending March 2026 include T. Rowe Price Investment Management, Inc. (1.27Mn), BlackRock, Inc. (1.01Mn), Atreides Management, LP (862.18K), VANGUARD CAPITAL MANAGEMENT LLC (707.4K), ALLIANCEBERNSTEIN L.P. (686.1K), Schonfeld Strategic Advisors LLC (656.55K), First Eagle Investment Management, LLC (558.15K), Franklin Resources Inc (542.22K), Goldman Sachs Group Inc (413.43K), S SQUARED TECHNOLOGY, LLC (385.55K).

Form 13F Holdings

96 Institutional Holders

Report period 31 Mar, 2026

Total shares held 11.47Mn

Of outstanding 56.21%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	T. Rowe Price Investment Management, Inc.	0001897612	1,267,551	6.21%	▲1,267,551	0.00%	$32.21K
2	BlackRock, Inc.	0002012383	1,013,161	4.97%	▲705,265	+229.06%	$25.74Mn
3	Atreides Management, LP	0001777813	862,175	4.23%	▲165,755	+23.80%	$21.91Mn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	707,404	3.47%	▲707,404	0.00%	$17.98Mn
5	ALLIANCEBERNSTEIN L.P.	0001109448	686,098	3.36%	▲290,727	+73.53%	$19.55Mn
6	Schonfeld Strategic Advisors LLC	0001665241	656,552	3.22%	▲434,742	+196.00%	$16.68Mn
7	First Eagle Investment Management, LLC	0001325447	558,146	2.74%	▲368,423	+194.19%	$14.18Mn
8	Franklin Resources Inc	0000038777	542,216	2.66%	▲234,329	+76.11%	$13.78Mn
9	Goldman Sachs Group Inc	0000886982	413,426	2.03%	▲149,202	+56.47%	$10.51Mn
10	S SQUARED TECHNOLOGY, LLC	0001322924	385,546	1.89%	▲385,546	0.00%	$9.80Mn
11	DRIEHAUS CAPITAL MANAGEMENT LLC	0000938206	380,768	1.87%	▲380,768	0.00%	$9.68Mn
12	GEODE CAPITAL MANAGEMENT, LLC	0001214717	297,548	1.46%	▲193,364	+185.60%	$7.56Mn
13	SILVERCREST ASSET MANAGEMENT GROUP LLC	0001232395	282,373	1.38%	▲93,683	+49.65%	$7.18Mn
14	State Street Corp	0000093751	260,227	1.28%	▲175,720	+207.94%	$6.61Mn
15	WASATCH ADVISORS LP	0000814133	254,303	1.25%	▲36,791	+16.91%	$6.46Mn
16	Polar Asset Management Partners Inc.	0001326389	201,335	0.99%	▲175,247	+671.75%	$5.12Mn
17	NEEDHAM INVESTMENT MANAGEMENT LLC	0001167212	200,000	0.98%	▲200,000	0.00%	$5.08Mn
18	MILLENNIUM MANAGEMENT LLC	0001273087	177,556	0.87%	▲115,538	+186.30%	$4.51Mn
19	UBS Group AG	0001610520	165,837	0.81%	▲130,048	+363.37%	$4.21Mn
20	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	158,901	0.78%	▲158,901	0.00%	$4.04Mn

Showing 1 to 20 of 96 holders