L3VLUP
Quarter end
30 Jun 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 31 Jul 2026
Managers listing it
40
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 20 listed it in both
Shares listed
45,254,803
combined, among listed positions
Reported value
$3.3bn
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: 27 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +4,881,496.

Managers listing ZTS in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

40 of 40 holders

ActionFiling
Wellington Management Group LLP9,423,895$677m0.12%Trimmed-726,20114 Aug 2026 (the filing on sec.gov)
Invesco Ltd5,523,018$397munder 0.1%Added+1,982,05014 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC3,188,263$229munder 0.1%Added+2,687,2522 Sep 2026 (the filing on sec.gov)
Arrowstreet Capital LP3,137,442$225m0.10%Added+1,161,88313 Aug 2026 (the filing on sec.gov)
Voloridge Investment Management LLC2,416,056$174m0.74%Added+1,562,99314 Aug 2026 (the filing on sec.gov)
Ruane Cunniff & Goldfarb LP2,353,300$169m2.63%Trimmed-71,71014 Aug 2026 (the filing on sec.gov)
Jane Street Group LLC2,011,337$145munder 0.1%Added+2,004,25714 Aug 2026 (the filing on sec.gov)
Janus Henderson Group Ltd1,937,891$139m0.06%Trimmed-1,763,85614 Aug 2026 (the filing on sec.gov)
Millennium Management LLC1,813,759$130munder 0.1%Added+163,80414 Aug 2026 (the filing on sec.gov)
Man Group PLC1,805,003$130m0.21%Added+1,021,37914 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP1,504,358$108munder 0.1%Added+869,79414 Aug 2026 (the filing on sec.gov)
Renaissance Technologies LLC1,403,300$101m0.14%Added+1,151,30013 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP698,452$83munder 0.1%Trimmed-2,934,86614 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc1,139,097$82munder 0.1%Added+121,00914 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC1,070,929$77munder 0.1%Added+462,97914 Aug 2026 (the filing on sec.gov)
Capital Research Global Investors980,811$70munder 0.1%Trimmed-427,78612 Aug 2026 (the filing on sec.gov)
Neuberger Berman Group LLC634,661$46munder 0.1%Trimmed-231,86427 Oct 2026 (the filing on sec.gov)
Squarepoint Ops LLC633,370$46m0.05%Added+602,95114 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.537,515$39munder 0.1%Added+462,36614 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP386,428$28munder 0.1%Added+244,12814 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)380,570$27munder 0.1%Trimmed-182,05513 Aug 2026 (the filing on sec.gov)
Acadian Asset Management LLC364,442$26munder 0.1%Trimmed-76,35513 Aug 2026 (the filing on sec.gov)
Polen Capital Management LLC320,420$23m0.20%Trimmed-3,902,6564 Aug 2026 (the filing on sec.gov)
Marshall Wace LLP257,470$19munder 0.1%Added+252,24313 Aug 2026 (the filing on sec.gov)
Tudor Investment Corp208,246$15munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q1 2026 to Q2 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.
24 in Q3 2024 to 23 in Q2 2026

Tracked managers listing it, at least.

0102030402014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
ZTS by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201321$2.9bnn.a.n.a.
Q3 201321$2.8bnn.a.n.a.
Q4 201317$2.8bnn.a.n.a.
Q1 201418$2.8bnn.a.n.a.
Q2 201415$3.2bnn.a.n.a.
Q3 201415$3.9bnn.a.n.a.
Q4 201424$5.2bnn.a.n.a.
Q1 201528$5.0bnn.a.n.a.
Q2 201527$5.1bnn.a.n.a.
Q3 201529$4.7bnn.a.n.a.
Q4 201524$5.5bnn.a.n.a.
Q1 201622$4.7bnn.a.n.a.
Q2 201620$4.7bnn.a.n.a.
Q3 201616$4.5bnn.a.n.a.
Q4 201617$4.6bnn.a.n.a.
Q1 201720$4.1bnn.a.n.a.
Q2 201719$5.0bnn.a.n.a.
Q3 201722$5.0bnn.a.n.a.
Q4 201717$5.2bnn.a.n.a.
Q1 201821$5.2bnn.a.n.a.
Q2 201825$5.5bnn.a.n.a.
Q3 201827$6.3bnn.a.n.a.
Q4 201831$6.6bnn.a.n.a.
Q1 201927$8.4bnn.a.n.a.
Q2 201930$8.9bnn.a.n.a.
Q3 201927$9.9bnn.a.n.a.
Q4 201925$10.5bnn.a.n.a.
Q1 202027$9.4bnn.a.n.a.
Q2 202023$10.8bnn.a.n.a.
Q3 202027$13.3bnn.a.n.a.
Q4 202025$13.7bnn.a.n.a.
Q1 202130$13.9bnn.a.n.a.
Q2 202128$15.8bnn.a.n.a.
Q3 202129$16.6bnn.a.n.a.
Q4 202129$21.1bnn.a.n.a.
Q1 202236$17.0bnn.a.n.a.
Q2 202237$15.4bnn.a.n.a.
Q3 202237$12.9bnn.a.n.a.
Q4 202230$12.0bnn.a.n.a.
Q1 202324$13.3bnn.a.n.a.
Q2 202326$13.3bnn.a.n.a.
Q3 202323$13.2bnn.a.n.a.
Q4 202319$14.5bn712
Q1 202435$12.2bn2511
Q2 202424$10.1bn1218
Q3 202424$9.8bn1311
Q4 202427$7.7bn1513
Q1 202528$7.2bn1710
Q2 202526$6.0bn1512
Q3 202527$5.9bn207
Q4 202521$5.1bn2322
Q1 202621$4.4bn1326
Q2 202623$2.7bn2714

Compare with…

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

ZTS and LLY →ZTS and JNJ →ZTS and VRTX →Choose a stock to compare with ZTS →

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