Trade Filings
Managers Stocks Filings Superinvestors
Signals Institutional Buying Institutional Selling Insider Activity 13D & 13G Watch Sector Rotation
Tools Stock Screener Manager Screener Compare Managers Consensus Baskets All Research Tools Data API
Learn & AI Learn Ask the Data AI Agents
News ★ Saved
About About us Methodology Contact Disclaimer
Reader
DATA PLANS

Historical data downloads — coming with accounts.

API GATEWAY

Free read-only JSON access to the site's cached data.

Dark mode

🧭 Guided View
New to markets — prices, yields, YTD, market cap? We explain every term as you browse, in plain English. Same data, with the help built in.

⚡ Expert View
You already know the market. Just the data — clean, fast and compact, with no extra explanations. This is the default view.

Interface language
Security record · archived quarter

AMBQ

Ambiq Micro, Inc. · Technology · Semiconductors

60.12 +6.0% mkt cap $1.45B quote delayed (FMP) · as of Aug 25 22:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025
44Tracked holders
+8Δ holders
5.41MShares held
$139.41MReported value
+11New positions
−4Exits
Strongly Rising Conviction score 76/100 2 quarters of rising tracked shares ●●○○○○ How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth +22.2% · share flow +30.0% · net new positions +15.9%formula
Broad accumulation — rising shares across more holders

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 71 +30 20.66M $875.87M +31 −2
Q1 2026 44 +8 5.41M $139.41M +11 −4
Q4 2025 37 -1 2.33M $66.28M +2 −2
Q3 2025 11 +8 986.65K $29.52M +8
Holder count
Who holds it · Q1 2026
#ManagerSharesΔ sharesValueTheir weightHeld
1 BlackRock (passive) 1.01M +229.1% $25.74M 0.0% ▲ Add 3 SEC ↗
2 BlackRock (passive) 1.01M +229.1% $25.74M 0.0% ▲ Add 3 SEC ↗
3 BlackRock (passive) 1.01M +229.1% $25.74M 0.0% ▲ Add 3 SEC ↗
4 BlackRock (passive) 1.01M +229.1% $25.74M 0.0% ▲ Add 3 SEC ↗
5 BlackRock (passive) 1.01M +229.1% $25.74M 0.0% ▲ Add 3 SEC ↗
6 BlackRock (passive) 1.01M +229.1% $25.74M 0.0% ▲ Add 3 SEC ↗
7 Alliancebernstein L.P. 686.10K +73.5% $19.55M 0.0% ▲ Add 2 SEC ↗
8 Vanguard Capital Management Llc 707.40K $17.98M 0.0% n/c 1 SEC ↗
9 Franklin Resources Inc 542.22K +76.1% $13.78M 0.0% ▲ Add 2 SEC ↗
10 Goldman Sachs Group 413.43K +212.9% $10.51M 0.0% ▲ Add 3 SEC ↗
11 Goldman Sachs Group 413.43K +212.9% $10.51M 0.0% ▲ Add 3 SEC ↗
12 Geode Capital Management (passive) 297.55K +185.6% $7.56M 0.0% ▲ Add 3 SEC ↗
13 Geode Capital Management (passive) 297.55K +185.6% $7.56M 0.0% ▲ Add 3 SEC ↗
14 First Eagle Investment Management… 279.07K +47.1% $7.09M 0.0% ▲ Add 2 SEC ↗
15 State Street Global Advisors (passive) 260.23K +207.9% $6.61M 0.0% ▲ Add 3 SEC ↗
16 Millennium Management 177.56K +186.3% $4.51M 0.0% ▲ Add 2 SEC ↗
17 UBS Group AG 165.84K +363.4% $4.21M 0.0% ▲ Add 2 SEC ↗
18 UBS Group AG 165.84K +363.4% $4.21M 0.0% ▲ Add 2 SEC ↗
19 Northern Trust Corp 110.85K +446.5% $2.82M 0.0% ▲ Add 2 SEC ↗
20 Northern Trust Corp 110.85K +446.5% $2.82M 0.0% ▲ Add 2 SEC ↗
21 Charles Schwab Investment… 81.07K +139.6% $2.06M 0.0% ▲ Add 2 SEC ↗
22 Alyeska Investment Group, L.P. 78.31K +138.5% $1.99M 0.0% ▲ Add 2 SEC ↗
23 JPMorgan Chase 76.52K +502.9% $1.81M 0.0% ▲ Add 3 SEC ↗
24 JPMorgan Chase 76.52K +502.9% $1.81M 0.0% ▲ Add 3 SEC ↗
25 JPMorgan Chase 76.52K +502.9% $1.81M 0.0% ▲ Add 3 SEC ↗
26 JPMorgan Chase 76.52K +502.9% $1.81M 0.0% ▲ Add 3 SEC ↗
27 Lazard Asset Management Llc 64.25K New $1.63M 0.0% New 1 SEC ↗
28 Bank Of America Corp /De/ 48.03K +632.3% $1.22M 0.0% ▲ Add 2 SEC ↗
29 Bank Of America Corp /De/ 48.03K +632.3% $1.22M 0.0% ▲ Add 2 SEC ↗
30 Renaissance Technologies 42.60K New $1.08M 0.0% New 1 SEC ↗
31 Bank of New York Mellon Corp 42.03K +288.5% $1.07M 0.0% ▲ Add 2 SEC ↗
32 Bank of New York Mellon Corp 42.03K +288.5% $1.07M 0.0% ▲ Add 2 SEC ↗
33 Two Sigma Investments 36.79K New $934,936 0.0% New 1 SEC ↗
34 Ameriprise Financial Inc 36.78K +79.8% $934,656 0.0% ▲ Add 2 SEC ↗
35 Nuveen, LLC 35.72K New $907,671 0.0% New 1 SEC ↗
36 Nuveen, LLC 35.72K New $907,671 0.0% New 1 SEC ↗
37 Morgan Stanley 31.41K -20.1% $798,000 0.0% ▼ Trim 3 SEC ↗
38 Morgan Stanley 31.41K -20.1% $798,000 0.0% ▼ Trim 3 SEC ↗
39 Morgan Stanley 31.41K -20.1% $798,000 0.0% ▼ Trim 3 SEC ↗
40 Morgan Stanley 31.41K -20.1% $798,000 0.0% ▼ Trim 3 SEC ↗
41 Morgan Stanley 31.41K -20.1% $798,000 0.0% ▼ Trim 3 SEC ↗
42 Morgan Stanley 31.41K -20.1% $798,000 0.0% ▼ Trim 3 SEC ↗
43 Stifel Financial Corp 27.70K New $703,729 0.0% New 1 SEC ↗
44 Td Asset Management Inc 23.77K New $603,996 0.0% New 1 SEC ↗
45 Deutsche Bank Ag\ 23.01K +49.5% $584,684 0.0% ▲ Add 2 SEC ↗
46 Deutsche Bank Ag\ 23.01K +49.5% $584,684 0.0% ▲ Add 2 SEC ↗
47 HighTower Advisors, LLC 21.65K New $550,177 0.0% New 1 SEC ↗
48 T. Rowe Price 14.94K New $381,000 0.0% New 1 SEC ↗
49 T. Rowe Price 14.94K New $381,000 0.0% New 1 SEC ↗
50 Rhumbline Advisers 14.04K +311.9% $356,673 0.0% ▲ Add 2 SEC ↗
51 Royal Bank Of Canada 11.60K +1332.1% $295,000 0.0% ▲ Add 2 SEC ↗
52 Royal Bank Of Canada 11.60K +1332.1% $295,000 0.0% ▲ Add 2 SEC ↗
53 Squarepoint Ops LLC 8.99K New $228,385 0.0% New 1 SEC ↗
54 MIRAE ASSET GLOBAL ETFS HOLDINGS… 8.49K -61.7% $215,782 0.0% ▼ Trim 2 SEC ↗
55 Wells Fargo & Company/Mn 6.87K +28.6% $174,567 0.0% ▲ Add 2 SEC ↗
56 Wells Fargo & Company/Mn 6.87K +28.6% $174,567 0.0% ▲ Add 2 SEC ↗
57 Barclays Plc 4.73K -44.0% $120,215 0.0% ▼ Trim 2 SEC ↗
58 Barclays Plc 4.73K -44.0% $120,215 0.0% ▼ Trim 2 SEC ↗
59 Barclays Plc 4.73K -44.0% $120,215 0.0% ▼ Trim 2 SEC ↗
60 Citigroup Inc 4.29K +290.0% $109,110 0.0% ▲ Add 2 SEC ↗
61 Citigroup Inc 4.29K +290.0% $109,110 0.0% ▲ Add 2 SEC ↗
62 Bnp Paribas Financial Markets 3.89K +293.2% $98,819 0.0% ▲ Add 2 SEC ↗
63 New York State Common Retirement… 1.70K 0.0% $43,197 0.0% Held 2 SEC ↗
64 Legal & General Group Plc 1.58K +234.9% $40,249 0.0% ▲ Add 2 SEC ↗
65 Russell Investments Group, Ltd. 1.42K +244.9% $36,108 0.0% ▲ Add 2 SEC ↗
66 Russell Investments Group, Ltd. 1.42K +244.9% $36,108 0.0% ▲ Add 2 SEC ↗
67 California State Teachers… 989 +244.6% $25,130 0.0% ▲ Add 2 SEC ↗
68 Fidelity (FMR) 763 +33.4% $19,388 0.0% ▲ Add 3 SEC ↗
69 Osaic Holdings, Inc. 335 -79.0% $8,511 0.0% ▼ Trim 2 SEC ↗
70 UBS AM, a distinct business unit of… 227 New $5,768 0.0% New 1 SEC ↗
71 Cwm, Llc 91 +85.7% $2,312 0.0% ▲ Add 2 SEC ↗
72 Simplex Trading, Llc 33 New $838 0.0% New 1 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

Lazard Asset Management Llc $1.63M 0.0%
Renaissance Technologies $1.08M 0.0%
Two Sigma Investments $934,936 0.0%
Nuveen, LLC $907,671 0.0%
Nuveen, LLC $907,671 0.0%
Stifel Financial Corp $703,729 0.0%
Td Asset Management Inc $603,996 0.0%
HighTower Advisors, LLC $550,177 0.0%
T. Rowe Price $381,000 0.0%
T. Rowe Price $381,000 0.0%
Squarepoint Ops LLC $228,385 0.0%
UBS AM, a distinct business… $5,768 0.0%

Exited

Peak6 Llc $2.04M was 0.0%
Tudor Investment Corp Et Al $768,816 was 0.0%
Norges Bank $570,000 was 0.0%
D. E. Shaw & Co. $557,859 was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 96 holders, 10.92M shares, $247.14M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Insider transactions

Open-market purchases (P)

No open-market insider purchases in our coverage window.

Open-market sales (S)

Aug 14 Hanson Scott McLean

Officer, Director · 800 sh · $50,605

Aug 14 Hanson Scott McLean

Officer, Director · 5.40K sh · $347,793

Aug 14 Hanson Scott McLean

Officer, Director · 800 sh · $52,241

Aug 14 Esaka Fumihide

Officer, Director · 1.28K sh · $81,132

Aug 14 Esaka Fumihide

Officer, Director · 10.72K sh · $690,201

Aug 14 Esaka Fumihide

Officer, Director · 1.50K sh · $97,893

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Beneficial ownership
Aug 14 SC 13G/A — T. Rowe Price Investment Management…

View original SEC filing ↗

Jul 27 SC 13G — BlackRock, Inc.

View original SEC filing ↗

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q1 2026 · Methodology · Get this via the API