L3VLUP
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
26
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 5 listed it in both
Shares listed
10,189,797
combined, among listed positions
Reported value
$769m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 16 buyers (opened or added shares) and 12 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -1,776,407.

Managers listing SIGI in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

26 of 26 holders

ActionFiling
AQR Capital Management LLC3,936,658$297m0.14%Trimmed-122,88915 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)2,501,231$189munder 0.1%Trimmed-2,433,76215 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd784,231$59munder 0.1%Added+1,80618 May 2026 (the filing on sec.gov)
Verition Fund Management LLC484,007$36m0.24%Added+43,50115 May 2026 (the filing on sec.gov)
MFS Investment Management476,532$36munder 0.1%Trimmed-6,00314 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP420,106$32munder 0.1%Added+322,90114 May 2026 (the filing on sec.gov)
Invesco Ltd226,079$17munder 0.1%Added+3,86912 May 2026 (the filing on sec.gov)
Voloridge Investment Management LLC192,226$14m0.06%Trimmed-16,92315 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP184,844$14m0.11%Newnew14 May 2026 (the filing on sec.gov)
AllianceBernstein LP113,055$9.5munder 0.1%Trimmed-2,16315 May 2026 (the filing on sec.gov)
Citadel Advisors LLC120,946$9.1munder 0.1%Added+71,68515 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.115,193$8.7munder 0.1%Trimmed-7,33415 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC112,494$8.5munder 0.1%Added+15,20014 May 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC91,250$6.9munder 0.1%Added+72,54015 May 2026 (the filing on sec.gov)
Jane Street Group LLC77,667$5.9munder 0.1%Added+60,32812 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc64,546$4.9munder 0.1%Trimmed-37,19715 May 2026 (the filing on sec.gov)
Millennium Management LLC50,636$3.8munder 0.1%Added+15,69415 May 2026 (the filing on sec.gov)
Man Group PLC49,691$3.7munder 0.1%Added+10,45515 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC47,035$3.5munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Holocene Advisors LP31,413$2.4munder 0.1%Trimmed-8,52915 May 2026 (the filing on sec.gov)
Bridgewater Associates LP30,072$2.3munder 0.1%Added+2,51815 May 2026 (the filing on sec.gov)
Tudor Investment Corp25,030$1.9munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP20,255$1.5munder 0.1%Added+17,03615 May 2026 (the filing on sec.gov)
Quantbot Technologies LP16,851$1.3m0.05%Added+15,92713 May 2026 (the filing on sec.gov)
Two Sigma Investments LP15,000$1.1munder 0.1%Trimmed-28,20015 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
6 in Q3 2024 to 4 in Q2 2026

Tracked managers listing it, at least.

051015201420182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
SIGI by quarter
QuarterHoldersReported valueBuyersSellers
Q1 20141$721kn.a.n.a.
Q3 20142$8.9mn.a.n.a.
Q4 20142$12mn.a.n.a.
Q1 20151$1.1mn.a.n.a.
Q2 20151$1.0mn.a.n.a.
Q4 20151$1.3mn.a.n.a.
Q3 20161$56mn.a.n.a.
Q4 20161$61mn.a.n.a.
Q1 20171$81mn.a.n.a.
Q2 20171$77mn.a.n.a.
Q3 20171$83mn.a.n.a.
Q4 20172$91mn.a.n.a.
Q1 20182$92mn.a.n.a.
Q2 20183$88mn.a.n.a.
Q3 20183$90mn.a.n.a.
Q4 20184$78mn.a.n.a.
Q1 20194$82mn.a.n.a.
Q2 20195$280mn.a.n.a.
Q3 20198$299mn.a.n.a.
Q4 20195$111mn.a.n.a.
Q1 20205$76mn.a.n.a.
Q2 20202$71mn.a.n.a.
Q3 20203$127mn.a.n.a.
Q4 20203$186mn.a.n.a.
Q1 20213$193mn.a.n.a.
Q2 20214$472mn.a.n.a.
Q3 20213$219mn.a.n.a.
Q4 20213$234mn.a.n.a.
Q1 20226$587mn.a.n.a.
Q2 20225$556mn.a.n.a.
Q3 20224$291mn.a.n.a.
Q4 20224$308mn.a.n.a.
Q1 20235$300mn.a.n.a.
Q2 20234$192mn.a.n.a.
Q3 20235$585mn.a.n.a.
Q4 20233$146m30
Q1 20245$203m32
Q2 20242$4.0m11
Q3 20246$552m60
Q4 20249$590m44
Q1 202512$772m93
Q2 20259$317m73
Q3 20259$377m72
Q4 20256$464m1020
Q1 20266$428m1612
Q2 20264$439m1517

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

SIGI and V →SIGI and AXP →SIGI and BAC →Choose a stock to compare with SIGI →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own SIGI, latest filings →Back to the 13F Explorer →