Zoetis Inc.
US ˙ NYSE ˙ US98978V1035

SecurityZTS / Zoetis Inc.
InstitutionMairs & Power Inc
Latest Disclosed Ownership303,116 shares
Latest Disclosed Value $ 35,831,342
Mairs & Power Inc reports 33.89% increase in ownership of ZTS / Zoetis Inc.

On May 13, 2026 - Mairs & Power Inc filed a 13F-HR form disclosing ownership of 303,116 shares of Zoetis Inc. (US:ZTS) valued at $35,831,342 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 226,400 shares of Zoetis Inc.. This represents a change in shares of 33.89% during the quarter. The current value of the position is $24,103,784 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F ZOETIS CL A 98978V103 303,116 76,716 33.89 35,831 25.79 0.3661
2026-02-17 2025-12-31 13F ZOETIS CL A 98978V103 226,400 224,910 15,094.63 28,486 12,966.51 0.2742
2025-11-14 2025-09-30 13F ZOETIS CL A 98978V103 1,490 0 0.00 218 -6.03 0.0020
2025-08-14 2025-06-30 13F ZOETIS CL A 98978V103 1,490 146 10.86 232 4.98 0.0023
2025-05-15 2025-03-31 13F ZOETIS CL A 98978V103 1,344 -196 -12.73 221 -11.60 0.0023
2025-02-14 2024-12-31 13F ZOETIS CL A 98978V103 1,540 0 0.00 251 -16.67 0.0024
2024-11-14 2024-09-30 13F ZOETIS CL A 98978V103 1,540 -360 -18.95 301 -8.81 0.0028
2024-08-14 2024-06-30 13F ZOETIS CL A 98978V103 1,900 -13 -0.68 329 1.86 0.0032
2024-05-15 2024-03-31 13F ZOETIS CL A 98978V103 1,913 -10 -0.52 324 -14.78 0.0031
2024-02-14 2023-12-31 13F ZOETIS CL A 98978V103 1,923 0 0.00 380 13.47 0.0040
2023-11-14 2023-09-30 13F ZOETIS CL A 98978V103 1,923 0 0.00 335 0.91 0.0039
2023-08-14 2023-06-30 13F ZOETIS CL A 98978V103 1,923 0 0.00 331 3.44 0.0036
2023-05-15 2023-03-31 13F ZOETIS CL A 98978V103 1,923 1,923 320 0.0037
2022-11-14 2022-09-30 13F ZOETIS CL A 98978V103 0 -1,306 -100.00 0 -100.00
2022-08-15 2022-06-30 13F ZOETIS CL A 98978V103 1,306 -244 -15.74 224 -23.29 0.0027
2022-05-16 2022-03-31 13F ZOETIS CL A 98978V103 1,550 -154 -9.04 292 -29.81 0.0029
2022-02-14 2021-12-31 13F ZOETIS CL A 98978V103 1,704 87 5.38 416 32.48 0.0039
2021-11-15 2021-09-30 13F ZOETIS CL A 98978V103 1,617 -1,940 -54.54 314 -52.64 0.0031
2021-08-16 2021-06-30 13F ZOETIS CL A 98978V103 3,557 -50 -1.39 663 16.73 0.0066
2021-05-14 2021-03-31 13F ZOETIS CL A 98978V103 3,607 -30 -0.82 568 -5.65 0.0060
2021-02-16 2020-12-31 13F ZOETIS CL A 98978V103 3,637 -552 -13.18 602 -13.13 0.0067
2020-11-16 2020-09-30 13F ZOETIS CL A 98978V103 4,189 30 0.72 693 21.58 0.0087
2020-08-14 2020-06-30 13F ZOETIS CL A 98978V103 4,159 -28 -0.67 570 15.62 0.0074
2020-05-15 2020-03-31 13F ZOETIS CL A 98978V103 4,187 0 0.00 493 -11.01 0.0072
2020-02-14 2019-12-31 13F Zoetis COM 98978V103 4,187 319 8.25 554 14.94 0.0063
2019-11-14 2019-09-30 13F Zoetis COM 98978V103 3,868 28 0.73 482 10.55 0.0058
2019-08-14 2019-06-30 13F Zoetis COM 98978V103 3,840 0 0.00 436 12.66 0.0052
2019-05-15 2019-03-31 13F Zoetis COM 98978V103 3,840 0 0.00 387 17.99 0.0047
2019-02-14 2018-12-31 13F Zoetis COM 98978V103 3,840 -300 -7.25 328 -13.46 0.0044
2018-11-14 2018-09-30 13F Zoetis COM 98978V103 4,140 0 0.00 379 7.37 0.0044
2018-08-14 2018-06-30 13F Zoetis COM 98978V103 4,140 0 0.00 353 2.02 0.0044
2018-05-15 2018-03-31 13F Zoetis COM 98978V103 4,140 4,140 346 0.0043
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.