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Institutional Ownership · SEC Form 13F

Who owns Selective Insurance Group (SIGI)


Which tracked institutional funds hold SIGI, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See SIGI company fundamentals →

Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

345
Institutional holders
52M
Shares held (tracked funds)

How the tape is positioned

143 tracked funds added or opened SIGI while 70 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.

A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.

Conviction spread

SIGI’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes SIGI more heavily than its largest holder by dollar value does.

Book-share is each fund’s reported value in SIGI divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.

Institutional & insider positioning

Between 2026-Q1 and 2026-Q2, across 345 tracked filers holding SIGI, 181 increased or opened the position and 197 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.

This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.

New buyers & exits

Funds opening or closing a position in SIGI between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.

New buyers 22

  • WELLINGTON MANAGEMENT GROUP LLP$77M
  • Jupiter Topco LLC$48M
  • SCHRODER INVESTMENT MANAGEMENT GROUP$41M
  • DEPRINCE RACE & ZOLLO INC$20M
  • DEAN INVESTMENT ASSOCIATES, LLC$7M
  • Jump Financial, LLC$6M

Full exits 39

  • JANUS HENDERSON GROUP PLC$59M
  • Qube Research & Technologies Ltd$35M
  • ExodusPoint Capital Management, LP$14M
  • Gillson Capital LP$12M
  • Lighthouse Investment Partners, LLC$12M
  • NATIXIS ADVISORS, LLC$7M

Largest adds

  • BlackRock, Inc.$250M
  • AMERICAN CENTURY COMPANIES INC$121M
  • VANGUARD PORTFOLIO MANAGEMENT LLC$78M
  • STATE STREET CORP$62M
  • VANGUARD CAPITAL MANAGEMENT LLC$59M
  • VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.$55M

Largest trims

  • FRONTIER CAPITAL MANAGEMENT CO LLC$21M
  • Trexquant Investment LP$6M
  • Schonfeld Strategic Advisors LLC$6M
  • ALGERT GLOBAL LLC$6M
  • JANE STREET GROUP, LLC$5M
  • PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO$5M

Institutional holders

One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.

FundSharesReported value% of valueQuarter
BlackRock, Inc. added7,778,138$755M15.4%2026-Q2
VANGUARD PORTFOLIO MANAGEMENT LLC added3,495,978$339M6.9%2026-Q2
AQR CAPITAL MANAGEMENT LLC trimmed3,345,130$325M6.6%2026-Q2
VANGUARD CAPITAL MANAGEMENT LLC added2,697,663$262M5.4%2026-Q2
STATE STREET CORP added2,451,382$238M4.9%2026-Q2
AMERICAN CENTURY COMPANIES INC added2,228,969$216M4.4%2026-Q2
FMR LLC trimmed1,941,671$188M3.9%2026-Q2
GEODE CAPITAL MANAGEMENT, LLC added1,825,150$177M3.6%2026-Q2
FIRST TRUST ADVISORS LP added1,610,141$156M3.2%2026-Q2
DIMENSIONAL FUND ADVISORS LP added1,449,582$141M2.9%2026-Q2
MORGAN STANLEY trimmed971,847$94M1.9%2026-Q2
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. added931,336$90M1.8%2026-Q2
NORTHERN TRUST CORP added916,721$89M1.8%2026-Q2
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. trimmed903,173$88M1.8%2026-Q2
CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed892,649$87M1.8%2026-Q2
WELLINGTON MANAGEMENT GROUP LLP new795,272$77M1.6%2026-Q2
NORGES BANK added764,284$74M1.5%2026-Q2
FRANKLIN RESOURCES INC added689,202$67M1.4%2026-Q2
GOLDMAN SACHS GROUP INC added658,666$64M1.3%2026-Q2
BANK OF AMERICA CORP /DE/ trimmed653,775$63M1.3%2026-Q2
JACOBS LEVY EQUITY MANAGEMENT, INC added600,650$58M1.2%2026-Q2
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added588,462$57M1.2%2026-Q2
Verition Fund Management LLC added534,470$52M1.1%2026-Q2
Jupiter Topco LLC new490,237$48M1.0%2026-Q2
Bank of New York Mellon Corp added489,452$47M1.0%2026-Q2
VICTORY CAPITAL MANAGEMENT INC added456,285$44M0.9%2026-Q2
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed453,220$44M0.9%2026-Q2
SCHRODER INVESTMENT MANAGEMENT GROUP new419,315$41M0.8%2026-Q2
Boston Trust Walden Corp trimmed403,358$39M0.8%2026-Q2
VANGUARD FIDUCIARY TRUST CO trimmed397,524$39M0.8%2026-Q2
RAYMOND JAMES FINANCIAL INC trimmed390,214$38M0.8%2026-Q2
FRONTIER CAPITAL MANAGEMENT CO LLC trimmed355,719$35M0.7%2026-Q2
JPMORGAN CHASE & CO added353,194$35M0.7%2026-Q2
SYSTEMATIC FINANCIAL MANAGEMENT LP added340,986$33M0.7%2026-Q2
Nuveen, LLC added336,056$33M0.7%2026-Q2
DEUTSCHE BANK AG\ added314,118$30M0.6%2026-Q2
UBS Group AG added295,962$29M0.6%2026-Q2
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC trimmed292,525$28M0.6%2026-Q2
Invesco Ltd. added292,179$28M0.6%2026-Q2
RENAISSANCE TECHNOLOGIES LLC added286,594$28M0.6%2026-Q2
PRINCIPAL FINANCIAL GROUP INC added265,562$26M0.5%2026-Q2
MetLife Investment Management, LLC trimmed246,296$24M0.5%2026-Q2
Tributary Capital Management, LLC trimmed243,301$24M0.5%2026-Q2
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added209,137$20M0.4%2026-Q2
DEPRINCE RACE & ZOLLO INC new204,539$20M0.4%2026-Q2
RHUMBLINE ADVISERS trimmed195,793$19M0.4%2026-Q2
Assenagon Asset Management S.A. added193,405$19M0.4%2026-Q2
Russell Investments Group, Ltd. added189,562$18M0.4%2026-Q2
KENNEDY CAPITAL MANAGEMENT LLC added187,467$18M0.4%2026-Q2
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed155,845$15M0.3%2026-Q2
VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed155,633$15M0.3%2026-Q2
ALLIANCEBERNSTEIN L.P. added123,079$9M0.2%2026-Q2
Swiss National Bank added120,100$12M0.2%2026-Q2
WELLS FARGO & COMPANY/MN added118,384$11M0.2%2026-Q2
California Public Employees Retirement System trimmed115,798$11M0.2%2026-Q2
EULAV Asset Management110,193$11M0.2%2026-Q2
ALGERT GLOBAL LLC trimmed106,451$10M0.2%2026-Q2
ENVESTNET ASSET MANAGEMENT INC added105,788$10M0.2%2026-Q2
Creative Planning added100,183$10M0.2%2026-Q2
PRICE T ROWE ASSOCIATES INC /MD/ added93,854$9M0.2%2026-Q2
Vest Financial, LLC added89,017$9M0.2%2026-Q2
Dana Investment Advisors, Inc. trimmed88,108$9M0.2%2026-Q2
AMERIPRISE FINANCIAL INC added86,942$8M0.2%2026-Q2
Legal & General Group Plc added86,065$8M0.2%2026-Q2
Public Sector Pension Investment Board added79,967$8M0.2%2026-Q2
SEI INVESTMENTS CO added79,256$8M0.2%2026-Q2
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed71,294$7M0.1%2026-Q2
DEAN INVESTMENT ASSOCIATES, LLC new70,658$7M0.1%2026-Q2
CITIGROUP INC added68,268$7M0.1%2026-Q2
Quantinno Capital Management LP added63,170$6M0.1%2026-Q2
Jump Financial, LLC added62,600$6M0.1%2026-Q2
Retirement Systems of Alabama trimmed61,922$6M0.1%2026-Q2
CITADEL ADVISORS LLC trimmed59,424$6M0.1%2026-Q2
MANUFACTURERS LIFE INSURANCE COMPANY, THE added56,653$5M0.1%2026-Q2
VANGUARD ASSET MANAGEMENT, Ltd added56,448$5M0.1%2026-Q2
Squarepoint Ops LLC added55,746$5M0.1%2026-Q2
Voleon Capital Management LP trimmed54,198$5M0.1%2026-Q2
Trexquant Investment LP trimmed51,888$5M0.1%2026-Q2
Dean Capital Management new51,255$5M0.1%2026-Q2
LPL Financial LLC trimmed49,853$5M0.1%2026-Q2
Horizon Investments, LLC added49,134$5M0.1%2026-Q2
PEREGRINE CAPITAL MANAGEMENT LLC trimmed46,757$5M0.1%2026-Q2
MARTINGALE ASSET MANAGEMENT L P added46,532$5M0.1%2026-Q2
Numerai GP LLC added46,452$5M0.1%2026-Q2
Cerity Partners LLC trimmed42,809$4M0.1%2026-Q2
D. E. Shaw & Co., Inc. trimmed40,277$4M0.1%2026-Q2
CANADA PENSION PLAN INVESTMENT BOARD trimmed37,600$4M0.1%2026-Q2
Cetera Investment Advisers added35,945$3M0.1%2026-Q2
TWO SIGMA INVESTMENTS, LP added34,390$3M0.1%2026-Q2
BNP PARIBAS FINANCIAL MARKETS trimmed34,148$3M0.1%2026-Q2
Holocene Advisors, LP added33,943$3M0.1%2026-Q2
FIFTH THIRD BANCORP trimmed33,722$3M0.1%2026-Q2
AGF MANAGEMENT LTD trimmed33,386$3M0.1%2026-Q2
Point72 Asset Management, L.P. trimmed33,196$3M0.1%2026-Q2
Man Group plc trimmed31,086$3M0.1%2026-Q2
Cresset Asset Management, LLC added30,999$3M0.1%2026-Q2
Insight Advisors, LLC/ PA29,805$3M0.1%2026-Q2
Sterling Capital Management LLC trimmed29,038$3M0.1%2026-Q2
Bridgewater Associates, LP trimmed28,916$3M0.1%2026-Q2
INTECH INVESTMENT MANAGEMENT LLC trimmed28,876$3M0.1%2026-Q2

Ownership over time

Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.

HoldersTotal shares

Reading this table

Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.

About 13F filings

A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.

Learn how to read institutional ownership