L3VLUP
Quarter end
31 Mar 2024
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 6 May 2024
Managers listing it
35
at least, of 95 tracked, among listed positions
Comparable managers
93
filed both Q4 2023 and Q1 2024; 17 listed it in both
Shares listed
72,066,206
combined, among listed positions
Reported value
$12.2bn
combined, at the quarter end

Among the 93 comparable managers: 25 buyers (opened or added shares) and 11 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing ZTS in Q1 2024

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2023, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

35 of 35 holders

ActionFiling
AllianceBernstein LP12,410,543$2.1bn0.74%Trimmed-162,90714 May 2024 (the filing on sec.gov)
T. Rowe Price Associates Inc9,372,104$1.6bn0.19%Trimmed-4,344,57715 May 2024 (the filing on sec.gov)
Wellington Management Group LLP9,254,609$1.6bn0.28%Added+237,96615 May 2024 (the filing on sec.gov)
Fidelity (FMR LLC)7,449,649$1.3bn0.08%Trimmed-471,7305 Nov 2026 (the filing on sec.gov)
Polen Capital Management LLC7,005,114$1.2bn2.74%Added+2,033,37010 May 2024 (the filing on sec.gov)
Capital World Investors6,292,307$1.1bn0.18%Trimmed-2,771,85114 May 2024 (the filing on sec.gov)
Capital Research Global Investors4,050,681$685m0.16%Added+90,33014 May 2024 (the filing on sec.gov)
Neuberger Berman Group LLC2,896,880$490m0.41%Added+10,77614 Nov 2024 (the filing on sec.gov)
Janus Henderson Group Ltd2,068,775$350m0.19%Trimmed-539,78815 May 2024 (the filing on sec.gov)
Citadel Advisors LLC1,779,558$301m0.06%Addedn.a.15 May 2024 (the filing on sec.gov)
Invesco Ltd1,614,618$273m0.06%Trimmed-978,54314 May 2024 (the filing on sec.gov)
D. E. Shaw & Co.1,410,565$239m0.20%Addedn.a.15 May 2024 (the filing on sec.gov)
MFS Investment Management1,360,667$230m0.07%Trimmed-1,727,77214 May 2024 (the filing on sec.gov)
Millennium Management LLC863,410$146m0.06%Addedn.a.15 May 2024 (the filing on sec.gov)
Man Group PLC739,821$125m0.32%Added+636,31615 May 2024 (the filing on sec.gov)
Squarepoint Ops LLC678,239$115m0.20%Addedn.a.15 May 2024 (the filing on sec.gov)
Renaissance Technologies LLC575,100$97m0.15%Newnew13 May 2024 (the filing on sec.gov)
Jane Street Group LLC523,446$89munder 0.1%Addedn.a.16 May 2024 (the filing on sec.gov)
Two Sigma Investments LP421,384$71m0.17%Addedn.a.15 May 2024 (the filing on sec.gov)
Tudor Investment Corp358,762$61m0.39%Addedn.a.15 May 2024 (the filing on sec.gov)
Voloridge Investment Management LLC355,502$60m0.22%Newnew15 May 2024 (the filing on sec.gov)
Woodline Partners LP190,230$32m0.30%Newnew15 May 2024 (the filing on sec.gov)
ExodusPoint Capital Management LP68,532$12m0.09%Newnew14 May 2024 (the filing on sec.gov)
Verition Fund Management LLC62,270$11m0.07%Addedn.a.14 May 2024 (the filing on sec.gov)
Bridgewater Associates LP60,434$10m0.05%Added+39,97914 May 2024 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2023 to Q1 2024, 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 →