Ambiq Micro Ownership | Who Owns Ambiq Micro?


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Ambiq Micro Ownership Summary


Ambiq Micro is owned by 23.96% institutional investors, 5.59% insiders, and 70.46% retail investors. T. rowe price investment management is the largest institutional shareholder, holding 15.89% of AMBQ shares.

AMBQ Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockAmbiq Micro23.96%5.59%70.46%
SectorTechnology Stocks 37.90%13.77%48.33%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
T. rowe price investment management1.27M15.89%$32.21M
Blackrock funding, inc. /de1.01M12.70%$25.74M
Alliancebernstein686.10K8.60%$19.55M
Schonfeld strategic advisors656.55K8.23%$16.68M
Franklin resources542.22K6.80%$13.78M
Atreides management, lp684.31K5.49%$20.47M
Goldman sachs group413.43K5.18%$10.51M
Driehaus capital management380.77K4.77%$9.68M
Geode capital management297.55K3.73%$7.56M
Silvercrest asset management group282.37K3.54%$7.18M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
S squared192.77K1.85%$4.90M
Roubaix capital125.82K1.49%$3.20M
Monashee investment management103.76K1.43%$2.64M
Toronado partners21.22K1.02%$539.25K
Fortress investment group150.00K0.60%$4.49M
Atreides management, lp684.31K0.40%$20.47M
Needham investment management200.00K0.26%$5.08M
Schonfeld strategic advisors656.55K0.12%$16.68M
Summit partners public asset management155.60K0.11%$3.95M
Polar asset management partners201.34K0.10%$5.12M

Top Buyers

HolderShares% AssetsChange
T. rowe price investment management1.27M0.02%1.27M
Blackrock funding, inc. /de1.01M0.00%705.26K
Atreides management, lp684.31K0.40%684.31K
Schonfeld strategic advisors656.55K0.12%434.74K
Driehaus capital management380.77K0.07%380.77K

Top Sellers

HolderShares% AssetsChange
Kadensa capital---394.99K
Maverick capital---59.25K
Seven grand managers---50.00K
Peak6---35.84K
Verition fund management---29.57K

New Positions

HolderShares% AssetsChangeValue
T. rowe price investment management1.27M0.02%1.27M$32.21M
Atreides management, lp684.31K0.40%684.31K$20.47M
Driehaus capital management380.77K0.07%380.77K$9.68M
Needham investment management200.00K0.26%200.00K$5.08M
S squared192.77K1.85%192.77K$4.90M

Sold Out

HolderChange
Ifp advisors-1.00
Nisa investment advisors-12.00
Massmutual trust co fsb/adv-58.00
Amalgamated bank-146.00
Quarry lp-304.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 202638-47.95%1,911,073-59.46%231.67%31-27.91%3-82.35%
Dec 31, 202543-31.75%2,077,169-53.06%161.32%32-49.21%6-
Sep 30, 202526-1,140,711-9-26---

Recent Insider Transactions


DateNameRoleActivityValue
May 14, 2026Winzeler Jeffrey G Chief Financial OfficerSell$1.81M
May 14, 2026Winzeler Jeffrey G Chief Financial OfficerSell$5.79K
May 14, 2026Hanson Scott McLean Chief Technology OfficerSell$424.52K
May 14, 2026Hanson Scott McLean Chief Technology OfficerSell$267.63K
May 14, 2026Hanson Scott McLean Chief Technology OfficerSell$14.10K

Insider Transactions Trends


DateBuySell
2026 Q1-2
2025 Q4--

AMBQ Ownership FAQ


Who owns the most shares of Ambiq Micro?

Ambiq Micro’s largest shareholders are T. rowe price investment management (1.27M shares, 15.89%), Blackrock funding, inc. /de (1.01M shares, 12.70%), and Alliancebernstein (686.1K shares, 8.60%). Together, they hold 37.19% of Ambiq Micro’s total shares outstanding.

Does Blackrock own Ambiq Micro?

BlackRock is not among the top 10 institutional shareholders of Ambiq Micro.

Who is Ambiq Micro’s biggest shareholder by percentage of total assets invested?

S squared is Ambiq Micro’s biggest shareholder by percentage of total assets invested, with 1.85% of its assets in 192.77K Ambiq Micro shares, valued at 4.9M$.

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