AIZ · Assurant, Inc. · Shareholders & Ownership
Every disclosed holder of AIZ in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns AIZ
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 48,623,099 | 98.58% |
| Insiders (Forms 3, 4, 5) | 389,662 | 0.79% |
| 13D/G-only blocks | 0 | 0.00% |
| Remaining | 311,006 | 0.63% |
| Registered funds (N-PORT, not summed) | 25,047,462 | 50.78% |
Shares outstanding: 49,323,767, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of AIZ
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,009,537 | ||
| 1.1 |
iShares Core S&P 500 ETF
Fund
S000004310 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
621,863 | ||
| 1.2 |
iShares Large Cap Core Active ETF
Fund
S000082317 · Registered fund · Jul 31, 2026
BlackRock ETF Trust, not summed
|
532,632 | ||
| 1.3 |
iShares Russell Mid-Cap ETF
Fund
S000004338 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
197,576 | ||
| 1.4 |
iShares Russell 1000 Value ETF
Fund
S000004345 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
110,216 | ||
| 1.5 |
iShares S&P 500 Value ETF
Fund
S000004312 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
81,281 | ||
| 2 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,727,930 | ||
| 2.1 |
BNY Mellon Dynamic Value ETF
Fund
S000087738 · Registered fund · Jul 31, 2026
BNY Mellon ETF Trust II, not summed
|
144,084 | ||
| 2.2 |
BNY Mellon US Mid Cap Core Equity ETF
Fund
S000067261 · Registered fund · Jul 31, 2026
BNY Mellon ETF Trust, not summed
|
7,980 | ||
| 2.3 |
BNY Mellon Women's Opportunities ETF
Fund
S000080184 · Registered fund · Aug 29, 2025
BNY Mellon ETF Trust, not summed
|
755 | ||
| 3 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,236,936 | ||
| 4 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,836,307 | ||
| 5 |
|
2,541,897 | ||
| 5.1 |
State Street(R) SPDR(R) S&P(R) Dividend ETF
Fund
S000006981 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
489,929 | ||
| 5.2 |
State Street(R) Financial Select Sector SPDR(R) ETF
Fund
S000006411 · Registered fund · Jun 30, 2026
SELECT SECTOR SPDR TRUST, not summed
|
335,140 | ||
| 5.3 |
State Street(R) SPDR(R) Portfolio S&P 500(R) ETF
Fund
S000006983 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
117,255 | ||
| 5.4 |
State Street(R) SPDR(R) Portfolio S&P 500(R) Value ETF
Fund
S000006985 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
60,270 | ||
| 5.5 |
State Street(R) SPDR(R) S&P(R) Insurance ETF
Fund
S000006979 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
31,831 | ||
| 6 |
T. Rowe Price Investment Management, Inc.
13F
CIK 1897612 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,427,220 | ||
| 6.1 |
T. Rowe Price Investment Management, Inc.
13G
CIK 1897612 · Investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
2,427,220 | ||
| 7 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,571,969 | ||
| 8 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,417,209 | ||
| 9 |
VANGUARD 500 INDEX FUND
Fund
S000002839 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,284,973 | ||
| 10 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,226,729 | ||
| 10.1 |
Invesco S&P 500 Equal Weight ETF
Fund
S000060812 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
724,027 | ||
| 10.2 |
Invesco S&P 500 GARP ETF
Fund
S000032768 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
98,813 | ||
| 10.3 |
Invesco Equally-Weighted S&P 500 Fund
Fund
S000027817 · Registered fund · May 31, 2026
AIM Counselor Series Trust (Invesco Counselor Series Trust), not summed
|
60,747 | ||
| 10.4 |
Invesco S&P 500 Pure Value ETF
Fund
S000060792 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
41,278 | ||
| 10.5 |
Invesco KBW Property & Casualty Insurance ETF
Fund
S000030363 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
37,372 | ||
| 11 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,199,305 | ||
| 11.1 |
U.S. Targeted Value Portfolio
Fund
S000000970 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
158,203 | ||
| 11.2 |
Dimensional U.S. Targeted Value ETF
Fund
S000070901 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
146,331 | ||
| 11.3 |
Dimensional U.S. Small Cap ETF
Fund
S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
91,692 | ||
| 11.4 |
U.S. CORE EQUITY 2 PORTFOLIO
Fund
S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
90,918 | ||
| 11.5 |
U.S. CORE EQUITY 1 PORTFOLIO
Fund
S000000979 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
85,221 | ||
| 12 |
BNY Mellon Dynamic Value Fund
Fund
S000000498 · Registered fund · Aug 31, 2026
BNY Mellon Advantage Funds, Inc., not summed
|
1,186,045 | ||
| 13 |
PRICE T ROWE ASSOCIATES INC /MD/
13F
CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,143,631 | ||
| 13.1 |
T. Rowe Price Mid-Cap Growth Fund, Inc.
Fund
S000002102 · Registered fund · Jun 30, 2026
T. ROWE PRICE MID-CAP GROWTH FUND, INC., not summed
|
1,280,187 | ||
| 13.2 |
T. Rowe Price Mid-Cap Value Fund, Inc.
Fund
S000002103 · Registered fund · Jun 30, 2026
T. ROWE PRICE MID-CAP VALUE FUND, INC., not summed
|
566,315 | ||
| 13.3 |
T. Rowe Price Institutional Mid-Cap Equity Growth Fund
Fund
S000002092 · Registered fund · Jun 30, 2026
T. Rowe Price Equity Funds, Inc., not summed
|
139,699 | ||
| 13.4 |
T. Rowe Price Equity Index 500 Fund
Fund
S000002089 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
30,863 | ||
| 13.5 |
T. Rowe Price Mid-Cap Growth Portfolio
Fund
S000002080 · Registered fund · Jun 30, 2026
T. ROWE PRICE EQUITY SERIES, INC., not summed
|
24,531 | ||
| 14 |
VANGUARD SMALL-CAP INDEX FUND
Fund
S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,136,032 | ||
| 15 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,004,116 | ||
| 16 |
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
13F
CIK 912938 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
920,398 | ||
| 16.1 |
MFS Mid Cap Value Fund
Fund
S000002499 · Registered fund · Jun 30, 2026
MFS SERIES TRUST XI, not summed
|
614,625 | ||
| 16.2 |
MFS Core Equity Fund
Fund
S000000763 · Registered fund · May 31, 2026
MFS SERIES TRUST I, not summed
|
45,386 | ||
| 16.3 |
MFS Mid Cap Value Portfolio
Fund
S000018843 · Registered fund · Jun 30, 2026
MFS VARIABLE INSURANCE TRUST III, not summed
|
25,476 | ||
| 16.4 |
MFS Low Volatility Equity Fund
Fund
S000042701 · Registered fund · May 31, 2026
MFS SERIES TRUST I, not summed
|
10,090 | ||
| 16.5 |
MFS Blended Research Mid Cap Equity Fund
Fund
S000054892 · Registered fund · May 31, 2026
MFS Series Trust X, not summed
|
9,000 | ||
| 17 |
FULLER & THALER ASSET MANAGEMENT, INC.
13F
CIK 1082327 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
896,364 | ||
| 18 |
FULLERTHALER BEHAVIORAL SMALL CAP EQUITY
Fund
S000051163 · Registered fund · Jun 30, 2026
Capitol Series Trust, not summed
|
852,628 | ||
| 19 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
777,257 | ||
| 19.1 |
E*TRADE No Fee Total Market Index Fund
Fund
S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
|
66 | ||
| 20 |
VOYA INVESTMENT MANAGEMENT LLC
13F
CIK 1068837 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
754,475 | ||
| 21 |
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund
S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
719,816 | ||
| 22 |
FMR LLC
13F
CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
689,904 | ||
| 22.1 |
Fidelity 500 Index Fund
Fund
S000006027 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
640,890 | ||
| 22.2 |
Fidelity Equity Dividend Income Fund
Fund
S000006970 · Registered fund · May 31, 2026
Fidelity Financial Trust, not summed
|
283,300 | ||
| 22.3 |
Fidelity Mid Cap Index Fund
Fund
S000033637 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
|
187,592 | ||
| 22.4 |
Fidelity Enhanced Mid Cap Core ETF
Fund
S000081803 · Registered fund · Jun 30, 2026
Fidelity Covington Trust, not summed
|
160,905 | ||
| 22.5 |
Fidelity Total Market Index Fund
Fund
S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
94,576 | ||
| 23 |
NORGES BANK
13F
CIK 1374170 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
651,725 | ||
| 24 |
FIRST TRUST ADVISORS LP
13F
CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
612,525 | ||
| 24.1 |
First Trust Value Line Dividend Index Fund
Fund
S000013817 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund, not summed
|
119,822 | ||
| 24.2 |
FT Vest SMID Rising Dividend Achievers Target Income ETF
Fund
S000081275 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded Fund IV, not summed
|
31,687 | ||
| 24.3 |
First Trust Financials AlphaDEX Fund
Fund
S000017699 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
|
25,221 | ||
| 24.4 |
First Trust Mid Cap Core AlphaDEX Fund
Fund
S000017338 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
|
11,508 | ||
| 24.5 |
First Trust/Dow Jones Dividend & Income Allocation Portfolio
Fund
S000036417 · Registered fund · Jun 30, 2026
First Trust Variable Insurance Trust, not summed
|
11,196 | ||
| 25 |
LYRICAL ASSET MANAGEMENT LP
13F
CIK 1542302 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
582,803 | ||
| 25.1 |
LYRICAL U.S. VALUE EQUITY FUND
Fund
S000039711 · Registered fund · May 31, 2026
Ultimus Managers Trust, not summed
|
116,969 | ||
| 26 |
SCHRODER INVESTMENT MANAGEMENT GROUP
13F
CIK 1086619 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
548,785 | ||
| 27 |
NORDEA INVESTMENT MANAGEMENT AB
13F
CIK 1218210 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
512,613 | ||
| 28 |
JNL/Newton Equity Income Fund
Fund
S000068131 · Registered fund · Jun 30, 2026
JNL Series Trust, not summed
|
503,521 | ||
| 29 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
503,434 | ||
| 29.1 |
Stock Index Fund
Fund
S000001247 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
15,319 | ||
| 29.2 |
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund
S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
10,366 | ||
| 29.3 |
FlexShares US Quality Low Volatility Index Fund
Fund
S000065837 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
4,704 | ||
| 30 |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F
CIK 1164508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
477,030 | ||
| 31 |
Qube Research & Technologies Ltd
13F
CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
465,890 | ||
| 32 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
465,243 | ||
| 32.1 |
Schwab U.S. Mid-Cap ETF
Fund
S000026635 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
135,364 | ||
| 32.2 |
Schwab S&P 500 Index Fund
Fund
S000005911 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
111,775 | ||
| 32.3 |
Schwab U.S. Large-Cap ETF
Fund
S000026632 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
52,685 | ||
| 32.4 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
30,159 | ||
| 32.5 |
Schwab U.S. Broad Market ETF
Fund
S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
29,841 | ||
| 33 |
Gillson Capital LP
13F
CIK 1698055 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
464,516 | ||
| 34 |
FIL Ltd
13F
CIK 318989 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
414,275 | ||
| 35 |
FIRST MANHATTAN CO. LLC.
13F
CIK 728083 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
405,627 | ||
| 36 |
First Trust SMID Cap Rising Dividend Achievers ETF
Fund
S000059604 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund VI, not summed
|
402,013 | ||
| 37 |
Woodline Partners LP
13F
CIK 1784547 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
390,528 | ||
| 38 |
WELLINGTON MANAGEMENT GROUP LLP
13F
CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
345,193 | ||
| 39 |
JUPITER ASSET MANAGEMENT LTD
13F
CIK 1215838 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
327,512 | ||
| 40 |
VANGUARD EXPLORER FUND
Fund
S000002578 · Registered fund · Jul 31, 2026
VANGUARD EXPLORER FUND, not summed
|
314,412 | ||
| 41 |
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.
13F
CIK 921739 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
308,532 | ||
| 41.1 |
Nomura Small Cap Value Fund
Fund
S000002401 · Registered fund · May 29, 2026
Delaware Group Equity Funds V, not summed
|
152,599 | ||
| 41.2 |
Nomura VIP Small Cap Value Series
Fund
S000002475 · Registered fund · Jun 30, 2026
Delaware VIP Trust, not summed
|
78,450 | ||
| 41.3 |
Nomura Opportunity Fund
Fund
S000065918 · Registered fund · Jun 30, 2026
Delaware Group Equity Funds IV, not summed
|
26,620 | ||
| 42 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
299,973 | ||
| 42.1 |
Goldman Sachs S&P 500 Premium Income ETF
Fund
S000081511 · Registered fund · Jun 30, 2026
Goldman Sachs ETF Trust, not summed
|
3,075 | ||
| 42.2 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
|
2,737 | ||
| 42.3 |
Goldman Sachs MarketBeta U.S. 1000 Equity ETF
Fund
S000075322 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust II, not summed
|
1,682 | ||
| 42.4 |
Goldman Sachs Strategic Factor Allocation Fund
Fund
S000054057 · Registered fund · May 31, 2026
GOLDMAN SACHS TRUST, not summed
|
759 | ||
| 42.5 |
Goldman Sachs JUST U.S. Large Cap Equity ETF
Fund
S000061377 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
615 | ||
| 43 |
DEUTSCHE BANK AG\
13F
CIK 948046 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
285,698 | ||
| 43.1 |
Xtrackers S&P 500 Scored & Screened ETF
Fund
S000065220 · Registered fund · May 29, 2026
DBX ETF Trust, not summed
|
3,791 | ||
| 43.2 |
Deutsche DWS Equity 500 Index Portfolio
Fund
S000009010 · Registered fund · Jun 30, 2026
DEUTSCHE DWS EQUITY 500 INDEX PORTFOLIO, not summed
|
1,546 | ||
| 43.3 |
DWS Small Mid Cap Value VIP
Fund
S000006269 · Registered fund · Jun 30, 2026
DEUTSCHE DWS VARIABLE SERIES II, not summed
|
1,392 | ||
| 43.4 |
Xtrackers Russell US Multifactor ETF
Fund
S000048521 · Registered fund · May 29, 2026
DBX ETF Trust, not summed
|
1,279 | ||
| 43.5 |
DWS Equity 500 Index VIP
Fund
S000006221 · Registered fund · Jun 30, 2026
DEUTSCHE DWS INVESTMENTS VIT FUNDS, not summed
|
700 | ||
| 44 |
VANGUARD DIVIDEND APPRECIATION INDEX FUND
Fund
S000011322 · Registered fund · Jul 31, 2026
VANGUARD SPECIALIZED FUNDS, not summed
|
280,342 | ||
| 45 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
277,979 | ||
| 46 |
VANGUARD INSTITUTIONAL INDEX FUND
Fund
S000002853 · Registered fund · Jun 30, 2026
VANGUARD INSTITUTIONAL INDEX FUNDS, not summed
|
269,191 | ||
| 47 |
Clark Capital Management Group, Inc.
13F
CIK 1352187 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
246,107 | ||
| 48 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
240,181 | ||
| 49 |
AMERICAN CENTURY COMPANIES INC
13F
CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
238,400 | ||
| 50 |
GW&K Investment Management, LLC
13F
CIK 1082917 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
237,825 |
126 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 891 holders
Create a free account to page through every holder, filter by source and group by ultimate parent.