Comparable stake leader
BlackRock, Inc.
SEC ownership of ASSURED GUARANTY LTD
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001273813.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
01 Jul 2026
- Public ticker
- AGO on NYSE
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
01 Jul 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001273813
- Issuer location
- Hamilton Bermuda, Bermuda
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of ASSURED GUARANTY LTD (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
01 Jul 2026
13F
13D/G
3/4/5
Lead comparable stake: 11%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 11%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
11%
VANGUARD PORTFOLIO MANAGEMENT LLC
8.8%
VANGUARD CAPITAL MANAGEMENT LLC
5.1%
WELLINGTON MANAGEMENT GROUP LLP
1.3%
FRANKLIN RESOURCES INC
1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
11%
from 13D/G
|
$470,992,116
5,780,463 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
8.8%
|
$322,079,848
3,952,870 shares
|
$0 | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.1%
|
$187,218,292
2,297,718 shares
|
$0 | 31 Mar 2026 |
| WELLINGTON MANAGEMENT GROUP LLP |
13D/G
13F
Company
|
1.3%
|
$55,160,588
613,782 shares
|
-$210,219,410 | 31 Dec 2025 |
| FRANKLIN RESOURCES INC |
13D/G
13F
Company
|
1%
|
$43,382,436
488,651 shares
|
$0 | 30 Sep 2024 |
| Dominic Frederico |
3/4/5
President/CEO/Deputy Chairman, Director
|
3.7%
|
$134,676,255
1,652,875 shares
|
-$6,159,249 | 01 May 2026 |
| Robert Bailenson |
3/4/5
Chief Operating Officer
|
0.57%
|
$20,197,710
256,251 shares
|
-$7,191,165 | 11 May 2026 |
| Ling Chow |
3/4/5
General Counsel and Secretary
|
0.44%
|
$15,935,043
195,570 shares
|
— | 01 May 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$23,461,676.
Buys
$0
Insiders: 0
Sells
$23,461,676
Insiders: 4
Net
-$23,461,676
Shares: -291,016
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 291,016
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 51,047 | $0 | $4,008,578 | -$4,008,578 |
| 3-6 | 0 | 174,969 | $0 | $14,096,948 | -$14,096,948 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 65,000 | $0 | $5,356,150 | -$5,356,150 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 25 reporting-owner rows connected to ASSURED GUARANTY LTD. Open a relationship link for the CIK-to-CIK filing trail.
Rows
25
Largest Forms 3/4/5 holder
Dominic Frederico
Net 12M change
-$23,461,676
Latest report
01 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Dominic Frederico | President/CEO/Deputy Chairman, Director | $134,676,255 | -$6,159,249 | -4.4% | Mixed | 01 May 2026 |
| Robert Bailenson | Chief Operating Officer | $20,197,710 | -$7,191,165 | -26% | Filing P/S | 11 May 2026 |
| Ling Chow | General Counsel and Secretary | $15,935,043 | Mixed | 01 May 2026 | ||
| Russell B. Brewer II | Chief Surveillance Officer | $15,495,306 | Mixed | 18 May 2021 | ||
| Francisco L. Borges | Director | $12,475,484 | -$9,927,225 | -44% | Mixed | 17 Jun 2026 |
| Stephen Donnarumma | Chief Credit Officer | $9,866,660 | Mixed | 01 May 2026 | ||
| David A. Buzen | Head of Asset Management* | $9,648,588 | Mixed | 27 Feb 2023 | ||
| Patrick W. Kenny | Director | $5,902,107 | Mixed | 01 May 2024 | ||
| Alan J. Kreczko | Director | $5,707,429 | Mixed | 30 Apr 2026 | ||
| Benjamin G. Rosenblum | Cfo | $4,925,653 | Median | 01 Jul 2026 | ||
| Michael T. O Kane | Director | $4,835,561 | Mixed | 03 May 2022 | ||
| Holly Horn | Chief Surveillance Officer | $4,283,077 | Mixed | 01 May 2026 | ||
| Howard Albert | Chief Risk Officer | $4,200,812 | Mixed | 01 Dec 2022 | ||
| Bonnie L. Howard | Director | $3,862,233 | Mixed | 30 Apr 2026 | ||
| Thomas W. Jones | Director | $3,854,411 | Mixed | 30 Apr 2026 | ||
| G. Lawrence Buhl | Director | $3,305,522 | Mixed | 01 May 2024 | ||
| Jorge A. Gana | Chief Risk Officer | $2,514,574 | Mixed | 23 Feb 2026 | ||
| Simon W. Leathes | Director | $2,010,543 | Mixed | 01 May 2024 | ||
| Laura Bieling | Chief Accounting Officer | $1,271,883 | Mixed | 23 Feb 2026 | ||
| Yukiko Omura | Director | $915,835 | Mixed | 30 Apr 2026 |
Recent insider transactions for ASSURED GUARANTY LTD
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Benjamin G. Rosenblum | AGO | Common Shares | Tax liability | -1.85% | -1,156 | 61,448 | 01 Jul 2026 | Direct | ||
| Francisco L. Borges | AGO | Common Shares | Gift | -1.66% | -2,588 | 153,111 | 18 Jun 2026 | Direct | ||
| Francisco L. Borges | AGO | Common Shares | Gift | -13.4% | -24,159 | 155,699 | 17 Jun 2026 | Direct | ||
| Lorin Radtke | AGO | Common Shares | Sale | -10.1% | $77,813 | $74.32 | -1,047 | 9,307 | 29 May 2026 | Direct |
| Francisco L. Borges | AGO | Common Shares | Gift | -0.04% | -74 | 179,858 | 28 May 2026 | Direct | ||
| Francisco L. Borges | AGO | Common Shares | Gift | -0.24% | -427 | 179,932 | 21 May 2026 | Direct | ||
| Robert Bailenson | AGO | Common Shares | Sale | -16.3% | $3,930,765 | $78.62 | -50,000 | 256,251 | 11 May 2026 | Direct |
| Dominic Frederico | AGO | Common Shares | Award | 2.69% | 33,980 | 1,298,275 | 01 May 2026 | Direct | ||
| Robert Bailenson | AGO | Common Shares | Award | 2.62% | 7,806 | 306,251 | 01 May 2026 | Direct | ||
| Stephen Donnarumma | AGO | Common Shares | Award | 2.97% | 3,490 | 121,093 | 01 May 2026 | Direct | ||
| Holly Horn | AGO | Common Shares | Award | 5.53% | 2,755 | 52,566 | 01 May 2026 | Direct | ||
| Ling Chow | AGO | Common Shares | Award | 3.15% | 5,970 | 195,570 | 01 May 2026 | Direct | ||
| Benjamin G. Rosenblum | AGO | Common Shares | Tax liability | -1.01% | -637 | 62,604 | 01 May 2026 | Direct | ||
| Alan J. Kreczko | AGO | Common Shares | Award | 5.95% | 3,936 | 70,047 | 01 May 2026 | Direct | ||
| Mark Batten | AGO | Common Shares | Award | 76.4% | 2,240 | 5,174 | 01 May 2026 | Direct | ||
| Francisco L. Borges | AGO | Common Shares | Award | 3.4% | 5,934 | 180,359 | 01 May 2026 | Direct | ||
| Bonnie L. Howard | AGO | Common Shares | Award | 3.85% | 1,756 | 47,401 | 01 May 2026 | Direct | ||
| Thomas W. Jones | AGO | Common Shares | Award | 3.86% | 1,756 | 47,305 | 01 May 2026 | Direct | ||
| Courtney C. Shea | AGO | Common Shares | Award | 19.5% | 1,756 | 10,751 | 01 May 2026 | Direct | ||
| Lorin Radtke | AGO | Common Shares | Award | 30.5% | 2,422 | 10,354 | 01 May 2026 | Direct | ||
| Yukiko Omura | AGO | Common Shares | Award | 18.5% | 1,756 | 11,240 | 01 May 2026 | Direct | ||
| Antonio Ursano Jr. | AGO | Common Shares | Award | 45.9% | 1,756 | 5,585 | 01 May 2026 | Direct | ||
| Alan J. Kreczko | AGO | Common Shares | Tax liability | -0.94% | -626 | 66,111 | 30 Apr 2026 | Direct | ||
| Mark Batten | AGO | Common Shares | Tax liability | -24.7% | -961 | 2,934 | 30 Apr 2026 | Direct | ||
| Francisco L. Borges | AGO | Common Shares | Tax liability | -0.73% | -1,277 | 174,425 | 30 Apr 2026 | Direct | ||
| Bonnie L. Howard | AGO | Common Shares | Tax liability | -0.79% | -365 | 45,645 | 30 Apr 2026 | Direct | ||
| Thomas W. Jones | AGO | Common Shares | Tax liability | -0.79% | -365 | 45,549 | 30 Apr 2026 | Direct | ||
| Courtney C. Shea | AGO | Common Shares | Tax liability | -3.9% | -365 | 8,995 | 30 Apr 2026 | Direct | ||
| Lorin Radtke | AGO | Common Shares | Tax liability | -4.4% | -365 | 7,932 | 30 Apr 2026 | Direct | ||
| Yukiko Omura | AGO | Common Shares | Tax liability | -7.31% | -748 | 9,484 | 30 Apr 2026 | Direct | ||
| Antonio Ursano Jr. | AGO | Common Shares | Tax liability | -8.7% | -365 | 3,829 | 30 Apr 2026 | Direct | ||
| Francisco L. Borges | AGO | Common Shares | Gift | -0.71% | -1,250 | 175,702 | 30 Mar 2026 | Direct | ||
| Francisco L. Borges | AGO | Common Shares | Sale | -41.2% | $9,927,225 | $80.22 | -123,750 | 176,952 | 30 Mar 2026 | Direct |
| Dominic Frederico | AGO | Common Shares | Sale | -2.32% | $2,442,137 | $81.41 | -29,998 | 1,264,295 | 23 Mar 2026 | Direct |
| Dominic Frederico | AGO | Common Shares | Sale | -1.52% | $1,621,362 | $81.06 | -20,002 | 1,294,293 | 20 Mar 2026 | Direct |
| Lorin Radtke | AGO | Common Shares | Sale | -12.8% | $106,224 | $87.14 | -1,219 | 8,297 | 04 Mar 2026 | Direct |
| Laura Bieling | AGO | Common Shares | Tax liability | -2.71% | -416 | 14,944 | 23 Feb 2026 | Direct | ||
| Holly Horn | AGO | Common Shares | Tax liability | -0.89% | -445 | 49,811 | 23 Feb 2026 | Direct | ||
| Benjamin G. Rosenblum | AGO | Common Shares | Tax liability | -1.89% | -1,220 | 63,241 | 23 Feb 2026 | Direct | ||
| Stephen Donnarumma | AGO | Common Shares | Tax liability | -3.48% | -4,244 | 117,603 | 23 Feb 2026 | Direct | ||
| Ling Chow | AGO | Common Shares | Tax liability | -3.97% | -7,835 | 189,600 | 23 Feb 2026 | Direct | ||
| Robert Bailenson | AGO | Common Shares | Tax liability | -3.08% | -9,494 | 298,445 | 23 Feb 2026 | Direct | ||
| Dominic Frederico | AGO | Common Shares | Tax liability | -2.58% | -34,785 | 1,314,295 | 23 Feb 2026 | Direct | ||
| Jorge A. Gana | AGO | Common Shares | Tax liability | -1.06% | -318 | 29,545 | 23 Feb 2026 | Direct | ||
| Dominic Frederico | AGO | Common Shares | Award | 5.5% | 71,810 | 1,378,110 | 22 Feb 2026 | Direct | ||
| Dominic Frederico | AGO | Common Shares | Tax liability | -3.57% | -48,430 | 1,306,300 | 22 Feb 2026 | Direct | ||
| Benjamin G. Rosenblum | AGO | Common Shares | Tax liability | -2.58% | -1,710 | 64,461 | 22 Feb 2026 | Direct | ||
| Holly Horn | AGO | Common Shares | Award | 12.4% | 5,822 | 52,603 | 22 Feb 2026 | Direct | ||
| Holly Horn | AGO | Common Shares | Tax liability | -7.72% | -3,912 | 46,781 | 22 Feb 2026 | Direct | ||
| Robert Bailenson | AGO | Common Shares | Award | 5.5% | 16,496 | 316,361 | 22 Feb 2026 | Direct |
* marks a reported price that did not pass the local price check.