Robert J Polzer
Insider
First SEC filing: Jan. 10, 2022 · Latest: Jan. 10, 2022
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Oct. 10, 2025 | ZTS | A | 205 | $46.71 | $9,576 | 10,990 Direct | +1.90% | Acquired | 49.2% (price as of 2026-10-02) |
| July 11, 2025 | ZTS | A | 161 | $50.86 | $8,188 | 10,785 Direct | +1.52% | Acquired | 37.0% (price as of 2026-10-02) |
| April 4, 2025 | ZTS | A | 582 | $49.66 | $28,902 | 10,624 Direct | +5.80% | Acquired | 40.3% (price as of 2026-10-02) |
| March 28, 2025 | ZTS | A | 799 | $53.18 | $42,491 | 10,042 Direct | +8.64% | Acquired | 31.0% (price as of 2026-10-02) |
| Feb. 19, 2025 | ZTS | A | 3,546 | · | · | 3,546 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 19, 2025 | ZTS | A | 13,814 | · | · | 13,814 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2025 | ZTS | M | 663 | · | · | 4,325 Direct | +18.10% | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2025 | ZTS | F | 190 | $171.43 | $32,572 | 4,135 Direct | -4.39% | Disposed | -59.3% (price as of 2026-10-02) |
| Feb. 8, 2025 | ZTS | M | 1,423 | · | · | 5,558 Direct | +34.41% | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2025 | ZTS | F | 438 | $171.43 | $75,086 | 5,120 Direct | -7.88% | Disposed | -59.3% (price as of 2026-10-02) |
| Feb. 8, 2025 | ZTS | M | 663 | · | · | 663 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Feb. 8, 2025 | ZTS | M | 1,424 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 6, 2025 | ZTS | M | 622 | · | · | 3,871 Direct | +19.14% | Acquired | (price as of 2026-10-02) |
| Feb. 6, 2025 | ZTS | F | 209 | $174.12 | $36,391 | 3,662 Direct | -5.40% | Disposed | -60.0% (price as of 2026-10-02) |
| Feb. 6, 2025 | ZTS | M | 623 | · | · | 1,245 Direct | -33.35% | Disposed | (price as of 2026-10-02) |
| Jan. 10, 2025 | ZTS | A | 144 | $53.05 | $7,639 | 9,243 Direct | +1.58% | Acquired | 31.4% (price as of 2026-10-02) |
| Nov. 25, 2024 | ZTS | M | 1,057 | $160.62 | $169,775 | 4,306 Direct | +32.53% | Acquired | -56.6% (price as of 2026-10-02) |
| Nov. 25, 2024 | ZTS | M | 2,420 | $162.07 | $392,209 | 6,726 Direct | +56.20% | Acquired | -57.0% (price as of 2026-10-02) |
| Nov. 25, 2024 | ZTS | S | 3,477 | $177.46 | $617,028 | 3,249 Direct | -51.69% | Disposed | -60.7% (price as of 2026-10-02) |
| Nov. 25, 2024 | ZTS | M | 1,057 | · | · | 5,455 Direct | -16.23% | Disposed | (price as of 2026-10-02) |
| Nov. 25, 2024 | ZTS | M | 2,420 | · | · | 4,840 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Oct. 4, 2024 | ZTS | A | 145 | $61.07 | $8,855 | 9,100 Direct | +1.62% | Acquired | 14.1% (price as of 2026-10-02) |
| July 12, 2024 | ZTS | A | 132 | $57.53 | $7,594 | 8,954 Direct | +1.50% | Acquired | 21.1% (price as of 2026-10-02) |
| April 5, 2024 | ZTS | A | 345 | $53.31 | $18,392 | 8,822 Direct | +4.07% | Acquired | 30.7% (price as of 2026-10-02) |
| March 28, 2024 | ZTS | A | 374 | $54.33 | $20,319 | 8,477 Direct | +4.62% | Acquired | 28.3% (price as of 2026-10-02) |
| Feb. 10, 2024 | ZTS | M | 254 | · | · | 3,050 Direct | +9.08% | Acquired | (price as of 2026-10-02) |
| Feb. 10, 2024 | ZTS | F | 73 | $197.32 | $14,404 | 2,977 Direct | -2.39% | Disposed | -64.7% (price as of 2026-10-02) |
| Feb. 10, 2024 | ZTS | M | 382 | · | · | 3,359 Direct | +12.83% | Acquired | (price as of 2026-10-02) |
| Feb. 10, 2024 | ZTS | F | 110 | $197.32 | $21,705 | 3,249 Direct | -3.27% | Disposed | -64.7% (price as of 2026-10-02) |
| Feb. 10, 2024 | ZTS | M | 255 | · | · | 1,409 Direct | -15.32% | Disposed | (price as of 2026-10-02) |
| Feb. 10, 2024 | ZTS | M | 383 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 8, 2024 | ZTS | M | 656 | · | · | 3,009 Direct | +27.88% | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2024 | ZTS | F | 213 | $195.75 | $41,695 | 2,796 Direct | -7.08% | Disposed | -64.4% (price as of 2026-10-02) |
| Feb. 8, 2024 | ZTS | M | 656 | · | · | 1,312 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Feb. 6, 2024 | ZTS | A | 1,848 | · | · | 1,848 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 6, 2024 | ZTS | A | 7,107 | · | · | 7,107 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 5, 2024 | ZTS | A | 383 | · | · | 383 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 12, 2024 | ZTS | A | 105 | $63.17 | $6,633 | 8,103 Direct | +1.31% | Acquired | 10.3% (price as of 2026-10-02) |
| Oct. 6, 2023 | ZTS | A | 138 | $55.92 | $7,717 | 7,998 Direct | +1.76% | Acquired | 24.6% (price as of 2026-10-02) |
| Aug. 9, 2023 | ZTS | M | 1,179 | $144.03 | $169,811 | 3,532 Direct | +50.11% | Acquired | -51.6% (price as of 2026-10-02) |
| Aug. 9, 2023 | ZTS | S | 1,179 | $189.94 | $223,939 | 2,353 Direct | -33.38% | Disposed | -63.3% (price as of 2026-10-02) |
| Aug. 9, 2023 | ZTS | M | 1,179 | · | · | 6,512 Direct | -15.33% | Disposed | (price as of 2026-10-02) |
| July 14, 2023 | ZTS | A | 121 | $54.74 | $6,624 | 7,859 Direct | +1.56% | Acquired | 27.3% (price as of 2026-10-02) |
| April 6, 2023 | ZTS | A | 82 | $53.59 | $4,394 | 7,738 Direct | +1.07% | Acquired | 30.0% (price as of 2026-10-02) |
| March 31, 2023 | ZTS | A | 236 | $52.84 | $12,470 | 7,655 Direct | +3.18% | Acquired | 31.9% (price as of 2026-10-02) |
| Feb. 11, 2023 | ZTS | M | 282 | · | · | 2,219 Direct | +14.56% | Acquired | (price as of 2026-10-02) |
| Feb. 11, 2023 | ZTS | F | 96 | $158.33 | $15,200 | 2,123 Direct | -4.33% | Disposed | -56.0% (price as of 2026-10-02) |
| Feb. 11, 2023 | ZTS | M | 349 | · | · | 2,472 Direct | +16.44% | Acquired | (price as of 2026-10-02) |
| Feb. 11, 2023 | ZTS | F | 119 | $158.33 | $18,841 | 2,353 Direct | -4.81% | Disposed | -56.0% (price as of 2026-10-02) |
| Feb. 11, 2023 | ZTS | M | 282 | · | · | 1,648 Direct | +20.64% | Acquired | (price as of 2026-10-02) |
| Feb. 11, 2023 | ZTS | M | 349 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2023 | ZTS | A | 349 | · | · | 349 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2023 | ZTS | A | 1,951 | · | · | 1,951 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2023 | ZTS | A | 7,260 | · | · | 7,260 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 13, 2023 | ZTS | A | 118 | · | · | 7,419 Direct | +1.62% | Acquired | (price as of 2026-10-02) |
| Oct. 7, 2022 | ZTS | A | 150 | $46.76 | $7,014 | 7,302 Direct | +2.10% | Acquired | 49.0% (price as of 2026-10-02) |
| Aug. 5, 2022 | ZTS | M | 1,721 | $87.51 | $150,605 | 3,057 Direct | +128.82% | Acquired | -20.4% (price as of 2026-10-02) |
| Aug. 5, 2022 | ZTS | S | 1,120 | $171.77 | $192,382 | 1,937 Direct | -36.64% | Disposed | -59.4% (price as of 2026-10-02) |
| Aug. 5, 2022 | ZTS | M | 1,721 | · | · | 7,691 Direct | -18.29% | Disposed | (price as of 2026-10-02) |
| July 15, 2022 | ZTS | A | 128 | $54.78 | $7,012 | 7,152 Direct | +1.82% | Acquired | 27.2% (price as of 2026-10-02) |
| April 8, 2022 | ZTS | A | 13 | $62.20 | $809 | 7,024 Direct | +0.19% | Acquired | 12.0% (price as of 2026-10-02) |
| March 30, 2022 | ZTS | A | 223 | $59.61 | $13,293 | 7,012 Direct | +3.28% | Acquired | 16.9% (price as of 2026-10-02) |
| Feb. 12, 2022 | ZTS | M | 435 | · | · | 435 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2022 | ZTS | F | 148 | $198.87 | $29,433 | 287 Direct | -34.02% | Disposed | -65.0% (price as of 2026-10-02) |
| Feb. 12, 2022 | ZTS | M | 1,501 | · | · | 1,788 Direct | +523.00% | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2022 | ZTS | F | 452 | $198.87 | $89,889 | 1,336 Direct | -25.28% | Disposed | -65.0% (price as of 2026-10-02) |
| Feb. 12, 2022 | ZTS | M | 435 | · | · | 1,915 Direct | -18.51% | Disposed | (price as of 2026-10-02) |
| Feb. 12, 2022 | ZTS | M | 1,501 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 8, 2022 | ZTS | A | 1,501 | · | · | 1,501 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2022 | ZTS | A | 1,385 | · | · | 2,351 Direct | +143.37% | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2022 | ZTS | A | 5,455 | · | · | 9,412 Direct | +137.86% | Acquired | (price as of 2026-10-02) |
| Jan. 14, 2022 | ZTS | A | 62 | $63.87 | $3,960 | 6,788 Direct | +0.92% | Acquired | 9.1% (price as of 2026-10-02) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Oct. 10, 2025 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 205 | Acquired |
| July 11, 2025 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 161 | Acquired |
| April 4, 2025 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 582 | Acquired |
| March 28, 2025 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 799 | Acquired |
| Feb. 19, 2025 | ZTS | Restricted Stock Unit [F1] | Common Stock | · | · | 3,546 | Acquired |
| Feb. 19, 2025 | ZTS | Stock Option [F7] | Common Stock | $156.64 | · | 13,814 | Acquired |
| Feb. 8, 2025 | ZTS | Restricted Stock Unit [F3] | Common Stock | · | · | 663 | Disposed |
| Feb. 8, 2025 | ZTS | Restricted Stock Unit [F7] | Common Stock | · | · | 1,424 | Disposed |
| Feb. 6, 2025 | ZTS | Restricted Stock Unit [F3] | Common Stock | · | · | 623 | Disposed |
| Jan. 10, 2025 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 144 | Acquired |
| Nov. 25, 2024 | ZTS | Stock Option [F3] | Common Stock | · | · | 1,057 | Disposed |
| Nov. 25, 2024 | ZTS | Stock Option [F8] | Common Stock | $162.07 | · | 2,420 | Disposed |
| Oct. 4, 2024 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 145 | Acquired |
| July 12, 2024 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 132 | Acquired |
| April 5, 2024 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 345 | Acquired |
| March 28, 2024 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 374 | Acquired |
| Feb. 10, 2024 | ZTS | Restricted Stock Unit [F4] | Common Stock | · | · | 255 | Disposed |
| Feb. 10, 2024 | ZTS | Performance Award Unit [F12] | Common Stock | · | · | 383 | Disposed |
| Feb. 8, 2024 | ZTS | Restricted Stock Unit [F3] | Common Stock | · | · | 656 | Disposed |
| Feb. 6, 2024 | ZTS | Restricted Stock Unit [F1] | Common Stock | · | · | 1,848 | Acquired |
| Feb. 6, 2024 | ZTS | Stock Option [F8] | Common Stock | $196.14 | · | 7,107 | Acquired |
| Feb. 5, 2024 | ZTS | Performance Award Unit [F1] | Common Stock | · | · | 383 | Acquired |
| Jan. 12, 2024 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 105 | Acquired |
| Oct. 6, 2023 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 138 | Acquired |
| Aug. 9, 2023 | ZTS | Stock Option [F3] | Common Stock | · | · | 1,179 | Disposed |
| July 14, 2023 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 121 | Acquired |
| April 6, 2023 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 82 | Acquired |
| March 31, 2023 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 236 | Acquired |
| Feb. 11, 2023 | ZTS | Restricted Stock Unit [F4] | Common Stock | · | · | 282 | Acquired |
| Feb. 11, 2023 | ZTS | Performance Award Unit [F9] | Common Stock | · | · | 349 | Acquired |
| Feb. 8, 2023 | ZTS | Performance Award Unit [F1] | Common Stock | · | · | 349 | Acquired |
| Feb. 8, 2023 | ZTS | Restricted Stock Unit [F5] | Common Stock | · | · | 1,951 | Acquired |
| Feb. 8, 2023 | ZTS | Stock Option [F11] | Common Stock | $162.07 | · | 7,260 | Acquired |
| Jan. 13, 2023 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 118 | Acquired |
| Oct. 7, 2022 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 150 | Acquired |
| Aug. 5, 2022 | ZTS | Stock Option [F1] | Common Stock | · | · | 1,721 | Disposed |
| July 15, 2022 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 128 | Acquired |
| April 8, 2022 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 13 | Acquired |
| March 30, 2022 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 223 | Acquired |
| Feb. 12, 2022 | ZTS | Restricted Stock Unit [F3] | Common Stock | · | · | 435 | Disposed |
| Feb. 12, 2022 | ZTS | Performance Award Unit [F4] | Common Stock | · | · | 1,501 | Disposed |
| Feb. 8, 2022 | ZTS | Performance Award Unit [F1] | Common Stock | · | · | 1,501 | Acquired |
| Feb. 8, 2022 | ZTS | Restricted Stock Unit [F5] | Common Stock | · | · | 1,385 | Acquired |
| Feb. 8, 2022 | ZTS | Stock Option [F9] | Common Stock | · | · | 5,455 | Acquired |
| Jan. 14, 2022 | ZTS | Phantom Stock Unit [F1] | Common Stock | · | · | 62 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.