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
29
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 19 listed it in both
Shares listed
17,699,959
combined, among listed positions
Reported value
$2.5bn
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: 14 buyers (opened or added shares) and 19 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -2,141,261.

Managers listing ZS 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.

29 of 29 holders

ActionFiling
Invesco Ltd4,306,572$604m0.06%Trimmed-745,82912 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)2,190,318$307munder 0.1%Trimmed-2,339,18415 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc1,749,210$245munder 0.1%Trimmed-823,14815 May 2026 (the filing on sec.gov)
Tiger Global Management LLC1,579,766$222m0.97%Held015 May 2026 (the filing on sec.gov)
Two Sigma Investments LP1,176,095$165m0.13%Added+974,67815 May 2026 (the filing on sec.gov)
AQR Capital Management LLC1,015,979$142m0.06%Trimmed-583,06615 May 2026 (the filing on sec.gov)
Wellington Management Group LLP893,501$125munder 0.1%Added+759,41215 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC676,652$95m0.11%Added+42,77615 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd541,671$76munder 0.1%Added+173,26818 May 2026 (the filing on sec.gov)
Citadel Advisors LLC510,857$72munder 0.1%Added+270,80415 May 2026 (the filing on sec.gov)
Voloridge Investment Management LLC427,786$60m0.24%Newnew15 May 2026 (the filing on sec.gov)
Artisan Partners LP385,216$54m0.09%Trimmed-208,32913 May 2026 (the filing on sec.gov)
Millennium Management LLC334,904$47munder 0.1%Added+285,18715 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP290,704$41munder 0.1%Trimmed-137,28814 May 2026 (the filing on sec.gov)
Jane Street Group LLC289,194$41munder 0.1%Added+285,37512 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP240,314$34munder 0.1%Added+143,95215 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC230,460$32m0.05%Added+122,16014 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC216,470$30munder 0.1%Trimmed-63,54227 Oct 2026 (the filing on sec.gov)
Man Group PLC177,225$25munder 0.1%Trimmed-71,63615 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC120,354$17munder 0.1%Added+35,69013 May 2026 (the filing on sec.gov)
Walleye Capital LLC115,271$16m0.07%Added+108,92513 May 2026 (the filing on sec.gov)
AllianceBernstein LP42,851$9.6munder 0.1%Added+2,30815 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.68,179$9.6munder 0.1%Trimmed-295,93415 May 2026 (the filing on sec.gov)
Verition Fund Management LLC54,323$7.6munder 0.1%Trimmed-5,79915 May 2026 (the filing on sec.gov)
Holocene Advisors LP40,567$5.7munder 0.1%Trimmed-239,43315 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.
17 in Q3 2024 to 11 in Q2 2026

Tracked managers listing it, at least.

0102030201820192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
ZS by quarter
QuarterHoldersReported valueBuyersSellers
Q1 20184$22mn.a.n.a.
Q2 20181$6.3mn.a.n.a.
Q3 20182$18mn.a.n.a.
Q1 20198$716mn.a.n.a.
Q2 20198$693mn.a.n.a.
Q3 20198$244mn.a.n.a.
Q4 20195$241mn.a.n.a.
Q1 202011$511mn.a.n.a.
Q2 202021$1.1bnn.a.n.a.
Q3 202014$1.3bnn.a.n.a.
Q4 202017$1.7bnn.a.n.a.
Q1 202115$1.4bnn.a.n.a.
Q2 202117$2.0bnn.a.n.a.
Q3 202119$3.2bnn.a.n.a.
Q4 202114$3.6bnn.a.n.a.
Q1 202219$2.9bnn.a.n.a.
Q2 202216$1.8bnn.a.n.a.
Q3 202222$2.0bnn.a.n.a.
Q4 202212$1.3bnn.a.n.a.
Q1 202311$1.4bnn.a.n.a.
Q2 202318$1.9bnn.a.n.a.
Q3 202322$1.7bnn.a.n.a.
Q4 202317$2.2bn912
Q1 202419$2.0bn155
Q2 202419$1.4bn129
Q3 202417$1.1bn810
Q4 202417$1.4bn811
Q1 202514$1.8bn105
Q2 202526$5.3bn197
Q3 202523$4.6bn139
Q4 202522$4.3bn1817
Q1 202617$1.9bn1419
Q2 202611$860m1915

Compare with…

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

ZS and GOOGL →ZS and AMZN →ZS and MSFT →Choose a stock to compare with ZS →

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 ZS, latest filings →Back to the 13F Explorer →