Security Snapshot

SELECTIVE INSURANCE GROUP INC - COMMON STOCK (SIGI) Institutional Ownership

CUSIP: 816300107

13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026

Latest Period

Q1 2026

Institutions Reporting

369

Shares (Excl. Options)

50,880,359

Price

$75.39

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Security type / class
Equity / COMMON STOCK
Symbol
SIGI on Nasdaq
All holders as of 31 Mar 2026
Q1 2026
Total 13F shares
50,880,359
Latest holder snapshot 5 signals
Total 13F value
$3,837,132,206
Portfolio coverage rank
0%
Share change
-1,809,277
Value change
-$147,711,077
Number of holders
369
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
59,553,121
SEC-reported price per share
$85.89
Insider filing price
$85.89
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • SIGI - SELECTIVE INSURANCE GROUP INC - COMMON STOCK is tracked under CUSIP 816300107.
  • 369 institutions reported positions in Q1 2026.
  • 4 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 356 to 369 between Q4 2025 and Q1 2026.
  • SEC-reported value moved from $4,410,196,610 to $3,837,132,206.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 369 institutions filings for Q1 2026.

Open SEC evidence

Security key

816300107

Latest holder period

Q1 2026

13F holders

369

13D/G owners

4

CIK / CUSIP context first

Open Q1 2026 holders SIGI full holder history SELECTIVE INSURANCE GROUP INC SEC filings SELECTIVE INSURANCE GROUP INC company facts SELECTIVE INSURANCE GROUP INC insider transactions

Broader feeds

Latest 13F filings Latest 13D/G filings All securities

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
4
Security
SIGI
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
AQR CAPITAL MANAGEMENT LLC 6.7% $337,429,547 4,059,547 AQR Capital Management, LLC 31 Dec 2025
VANGUARD PORTFOLIO MANAGEMENT LLC 5.9% $265,051,789 3,515,742 Vanguard Portfolio Management 31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC 5.2% $236,856,005 3,141,743 Vanguard Capital Management 31 Mar 2026
FMR LLC 4.2% $199,948,413 2,501,231 FMR LLC 31 Mar 2026

As of 31 Mar 2026, 369 institutional investors reported holding 50,880,359 shares of SELECTIVE INSURANCE GROUP INC - COMMON STOCK (SIGI). This represents 85% of the company’s total 59,553,121 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
65%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 13% 7,499,150 +0.35% 0.01% $565,360,920
AQR CAPITAL MANAGEMENT LLC 6.6% 3,936,658 -3% 0.14% $296,784,659
VANGUARD PORTFOLIO MANAGEMENT LLC 5.8% 3,459,250 0% 0.01% $260,792,857
VANGUARD CAPITAL MANAGEMENT LLC 4.5% 2,682,461 0% 0.01% $202,230,735
FMR LLC 4.2% 2,501,231 -49% 0.01% $188,567,811
STATE STREET CORP 3.9% 2,326,280 -1.1% 0.01% $175,378,249
GEODE CAPITAL MANAGEMENT, LLC 2.9% 1,708,819 +2.9% 0.01% $128,847,474
FIRST TRUST ADVISORS LP 2.3% 1,381,867 +33% 0.07% $104,178,980
DIMENSIONAL FUND ADVISORS LP 2.3% 1,359,224 +3.4% 0.02% $102,472,734
AMERICAN CENTURY COMPANIES INC 2.1% 1,267,272 +108% 0.05% $95,539,651
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 2% 1,197,811 -11% 0.15% $90,303,000
MORGAN STANLEY 1.9% 1,122,086 -2% 0.01% $84,594,225
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.5% 893,753 +0.36% 0.01% $67,380,039
NORTHERN TRUST CORP 1.5% 869,770 +0.23% 0.01% $65,571,960
JANUS HENDERSON GROUP PLC 1.3% 784,231 +0.23% 0.03% $59,123,456
BANK OF AMERICA CORP /DE/ 1.3% 759,122 +2.5% 0% $57,230,236
FRONTIER CAPITAL MANAGEMENT CO LLC 1.2% 729,748 +19% 0.57% $55,015,677
GOLDMAN SACHS GROUP INC 1% 602,964 +21% 0.01% $45,457,480
FRANKLIN RESOURCES INC 0.93% 555,324 +0.5% 0.01% $41,865,876
JACOBS LEVY EQUITY MANAGEMENT, INC 0.92% 549,595 -19% 0.17% $41,433,967
RAYMOND JAMES FINANCIAL INC 0.81% 485,113 +15% 0.01% $36,561,940
Verition Fund Management LLC 0.81% 484,007 +9.9% 0.35% $36,489,288
Bank of New York Mellon Corp 0.81% 482,884 +0.11% 0.01% $36,404,655
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.8% 476,532 -1.2% 0.01% $35,925,747
Qube Research & Technologies Ltd 0.79% 468,682 0.05% $35,333,936

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 50,880,359 $3,837,132,206 -$147,711,077 $75.39 369
2025 Q4 52,706,078 $4,410,196,610 +$15,421,087 $83.67 356
2025 Q3 51,235,921 $4,151,080,052 -$99,293,059 $81.07 339
2025 Q2 52,343,287 $4,534,956,196 +$137,334,502 $86.65 345
2025 Q1 50,683,431 $4,639,437,400 -$41,350,813 $91.54 340
2024 Q4 51,411,649 $4,807,987,230 +$10,715,495 $93.52 336
2024 Q3 51,153,825 $4,775,467,137 +$30,807,018 $93.30 325
2024 Q2 51,031,924 $4,788,509,707 +$14,322,302 $93.83 314
2024 Q1 50,803,585 $5,544,166,457 +$81,129,400 $109.17 329
2023 Q4 50,215,355 $4,995,462,446 -$82,573,624 $99.48 332
2023 Q3 50,998,932 $5,261,567,682 -$18,183,014 $103.17 297
2023 Q2 51,181,250 $4,910,863,989 -$70,804,219 $95.95 295
2023 Q1 51,933,995 $4,950,672,688 +$82,473,711 $95.33 274
2022 Q4 51,118,631 $4,530,166,422 +$139,989,816 $88.61 268
2022 Q3 51,152,579 $4,164,212,909 -$191,650,025 $81.40 247
2022 Q2 50,737,502 $4,410,358,959 +$112,396,240 $86.94 242
2022 Q1 49,689,837 $4,439,569,396 +$48,773,684 $89.36 250
2021 Q4 49,122,317 $4,024,089,395 +$18,601,682 $81.94 242
2021 Q3 48,860,308 $3,691,238,527 -$40,801,226 $75.53 239
2021 Q2 49,373,026 $4,006,322,334 +$104,731,073 $81.15 236
2021 Q1 48,128,727 $3,491,673,221 +$1,736,112 $72.54 234
2020 Q4 48,172,267 $3,226,598,360 +$793,013 $66.98 235
2020 Q3 48,320,496 $2,487,944,643 +$9,006,861 $51.49 228
2020 Q2 48,132,903 $2,541,968,442 +$56,124,361 $52.74 224
2020 Q1 47,202,832 $2,345,936,692 +$9,333,175 $49.70 226
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