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Ambiq Micro, Inc. · 13F filings

AMBQ Institutional Ownership

Holdings as of Jun 30, 2026From SEC Form 13FUpdated

Who owns Ambiq Micro, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 185 funds reported holding AMBQ at Jun 30, 2026, together owning 114.9% of the company.

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Fund sentiment
Strongly bullish
Strongly bearishNeutralStrongly bullish
  • ▲150 buying vs 41 selling
  • ▲Held by funds +69.4 pts
  • ▲Funds holding +88
  • ▲Superinvestors: 4 added, 0 cut
  • ●Put/call not meaningful

What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.

Funds holding185+88 vs Q1 2026
Held by funds114.9%+69.4 pts
Value held$2.4B27.8M shares
Put/call ratio–market makers left out

Funds holding and ownership

4 quarters
Q3 2025: 73 fundsQ3 '25Q4 2025: 75 fundsQ4 '25Q1 2026: 97 fundsQ1 '26Q2 2026: 185 fundsQ2 '26114.9% owned
Funds holdingHeld by funds %

Quarter over quarter

all 13F filers
Q2 2026This quarterQ1 2026Change
Funds holding18597+90.7%
In funds' top 1010–
13F shares27.8M11M+152.8%
Held by funds114.9%45.5%+69.4 pts
New positions9932+209.4%
Increased5148+6.3%
Reduced317+342.9%
Sold out1013−23.1%
Calls (shares)00–
Puts (shares)00–
Put/call ratio–––

Buyers vs sellers

adding or new vs cutting or sold out
Q3 2025: 73 buyingQ3 2025: 0 sellingQ3 '25Q4 2025: 43 buyingQ4 2025: 32 sellingQ4 '25Q1 2026: 80 buyingQ1 2026: 20 sellingQ1 '26Q2 2026: 150 buyingQ2 2026: 41 sellingQ2 '26
Buying 150Selling 41latest quarter

Superinvestors in AMBQ

All superinvestors →

Who owns AMBQ

share of fund held shares
  • Index and passive funds13.9%
  • Active managers and hedge funds40.5%
  • Banks and brokers7.7%
  • Pensions, insurers and other37.9%

The top 10 holders own 64.5% of all AMBQ shares that funds reported. Groups are our own grouping of filers by name.

Filed so far for Q3 2026

32 funds changed their position

🔒 Free account: see all 20.

Top holders

Q2 2026
#FundOf companySharesValueChange
1Manufacturers Life Insurance Company, the42.60%10.3M$884M+10.3M
2BlackRock, Inc.5.71%1.4M$122M+367K
3T. Rowe Price Investment Management, Inc.4.16%1M$88.9M−261K
4D. E. Shaw & Co., Inc.4.07%984K$86.9M+984K
5Atreides Management, LP3.63%877K$77.4M+15K
6State Street Corp3.56%862K$76.1M+602K
7Vanguard Capital Management LLC3.18%769K$67.9M+61K
8Two Sigma Investments, LP2.70%652K$57.6M+615K
9Alliancebernstein L.P.2.52%610K$15.5M−76K
10First Eagle Investment Management, LLC2.02%489K$43.2M+210K
🔒 15 more top holders. Create a free account or sign in to see them.
Biggest buyers
Biggest sellers

AMBQ institutional ownership FAQ

Who owns the most AMBQ stock?

In Q2 2026 13F filings the largest holder of AMBQ was Manufacturers Life Insurance Company, the, followed by BlackRock, Inc. and T. Rowe Price Investment Management, Inc.. Index fund managers are usually the biggest holders of large companies.

What percentage of AMBQ is owned by institutions?

Funds that file 13F reports held 114.9% of AMBQ's shares at Jun 30, 2026, compared with 45.5% a quarter earlier. That counts every manager with more than $100 million in US stocks.

Are hedge funds buying AMBQ?

In Q2 2026, 150 funds bought AMBQ (99 of them new positions) and 41 sold (10 sold out completely). Among well known investors, 4 added and 0 cut. Our fund sentiment for AMBQ is strongly bullish.

What is AMBQ's institutional put/call ratio?

Too few option positions were reported for a meaningful ratio.

How current is this AMBQ ownership data?

13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.

For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.