Across its top 20 institutional holders, AGO's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 4/100, avg. turnover score 25/100).

Quarterly Activity

Recent Activity

+$1.5B

Total Buy Value

$1.7B

Total Sell Value

New buy55

Trim115

Add140

Sold out47

195

Net Buyers

162

Net Sellers

Smart Money Convergence

AGO does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.

13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.

AI systems and LLM-based tools are welcome to cite the data on this page. When doing so, please include the source URL: https://alphasmo.com/stocks/AGO

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

Filings (90d)

$1000K

Total Est. Value

13K shares

Planned Shares

Last Filed 2026-06-23

Filer	Title/Relationship	Filing Date	Planned Shares	Est. Value
Horn Holly	senior advisor to CEO	2026-06-23	6K shares	$500K
Horn Holly	FORMER OFFICER	2026-06-17	6K shares	$500K

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

CUSIP

G0585R106

FAQ

Who are the top institutional investors holding Assured Guaranty Ltd. (AGO)?

Major stakeholders currently include BlackRock, Inc. ($471.0M), Vanguard Portfolio Management LLC ($319.9M), Dimensional Fund Advisors LP ($245.4M). Based on the latest 13F filings, there are a total of 367 tracked investment funds and institutions maintaining positions in AGO.

What is the overall institutional sentiment toward AGO recently?

Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $236.9M, driven by 195 managers accumulating shares while 162 reduced their exposure.

Which institutions have been selling or reducing their AGO positions?

In the latest period, 115 funds trimmed their holdings, and 47 managers completely exited their positions. The aggregate reported sell value was $1.7B.

Are there any notable investors adding AGO to their portfolios?

Yes, buying activity remains notable. 55 institutions opened new positions in {ticker}, and 140 existing holders added to their shares. The total reported buy value for the quarter amounted to $1.5B.

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Developer Access

Access AGO's institutional ownership data programmatically:

REST API

curl https://alphasmo.com/api/v1/market/stock/AGO

CLI

npx alphasmo stocks get AGO

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