SEC CIK 1435941
Schlossman Robert
Reported ownership across 2 companies, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| ZSview stock → | 75,710 | 2026-10-19 |
| EXTRview stock → | 0 | 2008-05-19 |
Position History — ZS
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — ZS
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2026-10-19 | Grant / award | 14,185 | $0.00 | 75,710 |
| 2026-09-21 | Open-market sale | 5,394 | $200.00 | 61,525 |
| 2026-09-16 | Open-market sale | 2,325 | $192.76 | 66,919 |
| 2026-07-06 | Open-market sale | 122 | $150.00 | 69,244 |
| 2026-06-16 | Open-market sale | 3,146 | $126.43 | 69,366 |
| 2026-03-17 | Open-market sale | 2,263 | $156.59 | 72,390 |
| 2025-12-17 | Open-market sale | 2,349 | $232.79 | 74,653 |
| 2025-12-16 | Open-market sale | 3,084 | $230.82 | 77,002 |
| 2025-10-24 | Open-market sale | 3,200 | $325.00 | 80,086 |
| 2025-10-15 | Grant / award | 7,154 | $0.00 | 83,286 |
| 2025-10-02 | Open-market sale | 574 | $307.47 | 76,132 |
| 2025-10-02 | Open-market sale | 4,532 | $306.12 | 76,706 |
| 2025-10-02 | Open-market sale | 300 | $304.67 | 81,238 |
| 2025-10-02 | Open-market sale | 900 | $304.00 | 81,538 |
| 2025-10-02 | Open-market sale | 700 | $302.92 | 82,438 |
| 2025-09-16 | Open-market sale | 3,832 | $280.70 | 83,138 |
| 2025-09-15 | Gift | 2,000 | $0.00 | 86,970 |
| 2025-06-18 | Open-market sale | 200 | $303.46 | 90,284 |
| 2025-06-18 | Open-market sale | 1,014 | $305.60 | 89,270 |
| 2025-06-18 | Open-market sale | 300 | $306.77 | 88,970 |
| 2025-06-18 | Open-market sale | 1,660 | $304.64 | 90,484 |
| 2025-06-17 | Open-market sale | 3,590 | $303.70 | 92,144 |
| 2025-06-04 | Open-market sale | 4,618 | $300.00 | 95,612 |
| 2025-05-16 | Open-market sale | 3,590 | $250.00 | 100,230 |
| 2025-03-19 | Open-market sale | 1,067 | $203.44 | 106,220 |
| 2025-03-19 | Open-market sale | 300 | $202.17 | 107,287 |
| 2025-03-19 | Open-market sale | 2,100 | $204.30 | 104,120 |
| 2025-03-19 | Open-market sale | 300 | $205.52 | 103,820 |
| 2025-03-18 | Open-market sale | 2,878 | $199.15 | 107,587 |
| 2024-12-18 | Open-market sale | 535 | $186.08 | 112,965 |
| 2024-12-18 | Open-market sale | 200 | $187.44 | 112,765 |
| 2024-12-18 | Open-market sale | 100 | $188.68 | 112,665 |
| 2024-12-18 | Open-market sale | 500 | $190.82 | 112,165 |
| 2024-12-18 | Open-market sale | 500 | $192.42 | 111,665 |
| 2024-12-18 | Open-market sale | 700 | $193.50 | 110,965 |
| 2024-12-18 | Open-market sale | 200 | $194.63 | 110,765 |
| 2024-12-18 | Open-market sale | 200 | $199.72 | 110,465 |
| 2024-12-18 | Open-market sale | 100 | $197.03 | 110,665 |
| 2024-12-17 | Open-market sale | 3,258 | $200.32 | 113,500 |
| 2024-12-05 | Grant / award | 10,952 | $0.00 | 116,758 |
| 2024-10-09 | Open-market sale | 947 | $180.00 | 106,294 |
| 2024-10-09 | Open-market sale | 488 | $185.00 | 105,806 |
| 2024-09-30 | Open-market sale | 3,820 | $169.99 | 108,368 |
| 2024-09-30 | Open-market sale | 939 | $170.79 | 107,429 |
| 2024-09-30 | Open-market sale | 188 | $172.11 | 107,241 |
| 2024-09-17 | Open-market sale | 6,220 | $171.28 | 112,401 |
| 2024-06-20 | Open-market sale | 1,990 | $176.97 | 123,267 |
| 2024-06-20 | Open-market sale | 200 | $176.19 | 123,067 |
| 2024-06-20 | Open-market sale | 376 | $177.72 | 122,691 |
| 2024-06-20 | Open-market sale | 3,698 | $178.64 | 118,993 |
| 2024-06-20 | Open-market sale | 372 | $179.20 | 118,621 |
| 2024-06-20 | Open-market sale | 372 | $179.20 | 118,408 |
| 2024-06-20 | Open-market sale | 3,911 | $178.63 | 118,780 |
| 2024-06-18 | Open-market sale | 3,594 | $180.93 | 125,257 |
| 2024-06-17 | Gift | 1,000 | $0.00 | 128,638 |
| 2024-06-10 | Grant / award | 11,144 | $0.00 | 129,638 |
| 2024-03-19 | Open-market sale | 703 | $192.54 | 122,148 |
| 2024-03-19 | Open-market sale | 2,547 | $195.01 | 118,901 |
| 2024-03-19 | Open-market sale | 700 | $193.65 | 121,448 |
| 2024-03-19 | Open-market sale | 407 | $195.70 | 118,494 |
| 2024-03-19 | Open-market sale | 1,127 | $191.63 | 122,851 |
| 2024-03-18 | Open-market sale | 4,227 | $193.15 | 123,978 |
| 2023-12-19 | Open-market sale | 800 | $223.04 | 131,019 |
| 2023-12-19 | Open-market sale | 2,414 | $224.02 | 128,605 |
| 2023-12-19 | Open-market sale | 400 | $224.79 | 128,205 |
| 2023-12-19 | Open-market sale | 1,216 | $222.10 | 131,819 |
| 2023-12-18 | Open-market sale | 4,877 | $221.34 | 133,035 |
| 2023-11-13 | Grant / award | 12,112 | $0.00 | 137,912 |
| 2023-09-25 | Open-market sale | 2,683 | $148.85 | 125,800 |
| 2023-09-25 | Open-market sale | 1,172 | $150.89 | 128,483 |
| 2023-09-19 | Open-market sale | 1,109 | $153.90 | 129,655 |
| 2023-09-18 | Open-market sale | 5,013 | $154.45 | 130,764 |
| 2023-06-20 | Open-market sale | 1,322 | $152.11 | 135,777 |
| 2023-06-16 | Gift | 1,000 | $0.00 | 141,899 |
| 2023-06-16 | Open-market sale | 5,013 | $156.64 | 137,099 |
| 2023-06-06 | Open-market sale | 2,496 | $150.00 | 142,899 |
| 2023-04-28 | Grant / award | 12,842 | $0.00 | 145,395 |
| 2023-03-16 | Open-market sale | 3,645 | $106.79 | 132,553 |
| 2022-12-16 | Open-market sale | 5,081 | $114.14 | 136,198 |
| 2022-10-18 | Open-market sale | 3,825 | $150.83 | 141,279 |
| 2022-10-17 | Grant / award | 9,723 | $0.00 | 145,104 |
| 2022-09-16 | Open-market sale | 8,045 | $167.97 | 135,381 |
| 2022-09-14 | Grant / award | 30,804 | $0.00 | 143,426 |
| 2022-06-21 | Open-market sale | 239 | $150.00 | 112,622 |
| 2022-06-16 | Open-market sale | 4,184 | $136.67 | 112,861 |
| 2022-03-16 | Open-market sale | 3,157 | $203.09 | 117,406 |
| 2021-12-22 | Gift | 600 | $0.00 | 116,806 |
| 2021-12-16 | Open-market sale | 3,949 | $300.01 | 120,563 |
| 2021-10-18 | Option exercise (derivative) | 4,000 | $0.00 | 0 |
| 2021-10-18 | Option exercise | 4,000 | $4.40 | 128,512 |
| 2021-10-18 | Open-market sale | 4,000 | $300.01 | 124,512 |
| 2021-09-21 | Option exercise (derivative) | 28,000 | $0.00 | 4,000 |
| 2021-09-21 | Open-market sale | 1,109 | $274.36 | 124,512 |
| 2021-09-21 | Open-market sale | 14,395 | $272.51 | 130,205 |
| 2021-09-21 | Open-market sale | 6,912 | $271.66 | 144,600 |
| 2021-09-21 | Open-market sale | 1,000 | $270.09 | 151,512 |
| 2021-09-21 | Open-market sale | 4,584 | $273.55 | 125,621 |
| 2021-09-21 | Option exercise | 28,000 | $4.40 | 152,512 |
| 2021-09-17 | Open-market sale | 500 | $273.49 | 125,036 |
| 2021-09-17 | Open-market sale | 811 | $272.32 | 125,536 |
| 2021-09-17 | Open-market sale | 1,020 | $271.50 | 126,347 |
| 2021-09-17 | Open-market sale | 1,000 | $270.55 | 127,367 |
| 2021-09-17 | Open-market sale | 24 | $275.53 | 124,512 |
| 2021-09-17 | Open-market sale | 500 | $274.78 | 124,536 |
| 2021-09-16 | Open-market sale | 3,920 | $268.97 | 128,367 |
| 2021-06-17 | Open-market sale | 3,870 | $215.05 | 132,287 |
| 2021-06-16 | Open-market sale | 239 | $214.04 | 136,157 |
| 2021-06-10 | Open-market sale | 2,156 | $200.08 | 140,062 |
| 2021-04-13 | Grant / award | 11,064 | $0.00 | 142,218 |
| 2021-03-17 | Open-market sale | 300 | $182.29 | 132,768 |
| 2021-03-17 | Open-market sale | 400 | $183.34 | 132,368 |
| 2021-03-17 | Open-market sale | 200 | $184.27 | 132,168 |
| 2021-03-17 | Open-market sale | 601 | $185.65 | 131,567 |
| 2021-03-17 | Open-market sale | 100 | $186.65 | 131,467 |
| 2021-03-17 | Open-market sale | 313 | $187.88 | 131,154 |
| 2021-03-17 | Open-market sale | 600 | $180.45 | 133,068 |
| 2021-03-16 | Open-market sale | 3,104 | $183.31 | 133,668 |
| 2020-12-21 | Open-market sale | 1,925 | $200.00 | 136,772 |
| 2020-12-17 | Open-market sale | 60 | $193.27 | 138,737 |
| 2020-12-17 | Open-market sale | 40 | $194.00 | 138,697 |
| 2020-12-17 | Open-market sale | 120 | $191.74 | 138,797 |
| 2020-12-17 | Open-market sale | 320 | $190.78 | 138,917 |
| 2020-12-17 | Open-market sale | 240 | $189.70 | 139,237 |
| 2020-12-17 | Open-market sale | 718 | $188.77 | 139,477 |
| 2020-12-17 | Open-market sale | 363 | $187.80 | 140,195 |
| 2020-12-17 | Open-market sale | 83 | $185.99 | 140,558 |
| 2020-12-16 | Open-market sale | 3,905 | $183.37 | 140,641 |
| 2020-10-08 | Option exercise (derivative) | 21,000 | $0.00 | 32,000 |
| 2020-10-08 | Option exercise | 21,000 | $4.40 | 165,546 |
| 2020-10-08 | Open-market sale | 21,000 | $150.11 | 144,546 |
| 2020-09-17 | Open-market sale | 700 | $126.64 | 144,646 |
| 2020-09-17 | Open-market sale | 100 | $127.26 | 144,546 |
| 2020-09-17 | Open-market sale | 172 | $125.15 | 145,346 |
| 2020-09-16 | Open-market sale | 981 | $131.72 | 145,518 |
| 2020-09-08 | Grant / award | 32,878 | $0.00 | 146,499 |
| 2020-08-03 | Option exercise (derivative) | 40,000 | $0.00 | 53,000 |
| 2020-08-03 | Open-market sale | 5,400 | $130.91 | 150,721 |
| 2020-08-03 | Open-market sale | 16,472 | $131.84 | 134,249 |
| 2020-08-03 | Open-market sale | 18,128 | $132.56 | 116,121 |
| 2020-08-03 | Option exercise | 40,000 | $4.40 | 156,121 |
| 2020-06-25 | Gift | 2,500 | $0.00 | 113,621 |
| 2020-06-18 | Open-market sale | 200 | $111.07 | 116,861 |
| 2020-06-18 | Open-market sale | 740 | $112.86 | 116,121 |
| 2020-06-17 | Open-market sale | 39 | $103.18 | 117,061 |
| 2020-06-16 | Open-market sale | 420 | $100.45 | 117,454 |
| 2020-06-16 | Open-market sale | 320 | $101.33 | 117,134 |
| 2020-06-16 | Open-market sale | 482 | $102.45 | 116,652 |
| 2020-06-16 | Open-market sale | 974 | $99.86 | 117,100 |
| 2020-06-16 | Open-market sale | 200 | $99.34 | 117,874 |
| 2020-06-16 | Open-market sale | 140 | $103.23 | 118,074 |
| 2020-06-02 | Grant / award | 29,014 | $0.00 | 118,074 |
| 2020-06-01 | Option exercise (derivative) | 3,000 | $0.00 | 93,000 |
| 2020-06-01 | Open-market sale | 200 | $107.87 | 89,660 |
| 2020-06-01 | Open-market sale | 200 | $106.63 | 89,860 |
| 2020-06-01 | Open-market sale | 100 | $104.93 | 90,060 |
| 2020-06-01 | Open-market sale | 300 | $103.47 | 90,160 |
| 2020-06-01 | Open-market sale | 300 | $102.36 | 90,460 |
| 2020-06-01 | Open-market sale | 1,100 | $100.02 | 90,760 |
| 2020-06-01 | Open-market sale | 100 | $98.07 | 91,860 |
| 2020-06-01 | Open-market sale | 100 | $97.04 | 91,960 |
| 2020-06-01 | Option exercise | 3,000 | $4.40 | 92,060 |
| 2020-06-01 | Open-market sale | 200 | $109.66 | 89,460 |
| 2020-06-01 | Open-market sale | 200 | $111.63 | 89,060 |
| 2020-05-29 | Option exercise (derivative) | 35,000 | $0.00 | 96,000 |
| 2020-05-29 | Open-market sale | 200 | $110.71 | 89,260 |
| 2020-05-29 | Open-market sale | 988 | $98.08 | 89,060 |
| 2020-05-29 | Open-market sale | 1,500 | $97.29 | 90,048 |
| 2020-05-29 | Open-market sale | 3,300 | $96.04 | 91,548 |
| 2020-05-29 | Open-market sale | 4,406 | $95.33 | 94,848 |
| 2020-05-29 | Open-market sale | 1,801 | $94.03 | 99,254 |
| 2020-05-29 | Open-market sale | 1,405 | $92.62 | 101,055 |
| 2020-05-29 | Open-market sale | 800 | $91.80 | 102,460 |
| 2020-05-29 | Open-market sale | 20,300 | $90.10 | 103,260 |
| 2020-05-29 | Open-market sale | 200 | $89.03 | 123,560 |
| 2020-05-29 | Open-market sale | 200 | $87.16 | 123,760 |
| 2020-05-29 | Open-market sale | 100 | $86.01 | 123,960 |
| 2020-05-29 | Option exercise | 35,000 | $4.40 | 124,060 |
| 2020-05-08 | Option exercise (derivative) | 10,900 | $0.00 | 131,000 |
| 2020-05-08 | Open-market sale | 10,900 | $75.09 | 89,060 |
| 2020-05-08 | Option exercise | 10,900 | $4.40 | 99,960 |
| 2020-05-07 | Option exercise (derivative) | 4,100 | $0.00 | 141,900 |
| 2020-05-07 | Open-market sale | 4,100 | $75.07 | 89,060 |
| 2020-05-07 | Option exercise | 4,100 | $4.40 | 93,160 |
| 2020-05-01 | Option exercise (derivative) | 2,000 | $0.00 | 146,000 |
| 2020-05-01 | Option exercise | 2,000 | $4.40 | 91,060 |
| 2020-05-01 | Open-market sale | 1,600 | $66.25 | 89,460 |
| 2020-05-01 | Open-market sale | 400 | $66.86 | 89,060 |
| 2020-04-16 | Option exercise (derivative) | 1,659 | $0.00 | 148,000 |
| 2020-04-16 | Open-market sale | 1,659 | $70.55 | 89,060 |
| 2020-04-16 | Option exercise | 1,659 | $4.40 | 90,719 |
| 2020-04-15 | Option exercise (derivative) | 13,341 | $0.00 | 149,659 |
| 2020-04-15 | Open-market sale | 13,341 | $70.01 | 89,060 |
| 2020-04-15 | Option exercise | 13,341 | $4.40 | 102,401 |
| 2020-04-01 | Option exercise (derivative) | 2,000 | $0.00 | 163,000 |
| 2020-04-01 | Open-market sale | 200 | $64.46 | 89,060 |
| 2020-04-01 | Open-market sale | 653 | $63.53 | 89,260 |
| 2020-04-01 | Open-market sale | 700 | $62.37 | 89,913 |
| 2020-04-01 | Open-market sale | 100 | $59.85 | 90,960 |
| 2020-04-01 | Option exercise | 2,000 | $4.40 | 91,060 |
| 2020-04-01 | Open-market sale | 347 | $61.39 | 90,613 |
| 2020-03-18 | Open-market sale | 1,264 | $44.00 | 89,060 |
| 2020-03-17 | Open-market sale | 10 | $42.66 | 90,324 |
| 2020-03-17 | Open-market sale | 679 | $40.97 | 90,334 |
| 2020-03-02 | Option exercise (derivative) | 2,000 | $0.00 | 165,000 |
| 2020-03-02 | Option exercise | 2,000 | $4.40 | 93,013 |
| 2020-03-02 | Open-market sale | 2,000 | $52.81 | 91,013 |
| 2020-02-03 | Option exercise (derivative) | 2,000 | $0.00 | 167,000 |
| 2020-02-03 | Open-market sale | 2,000 | $56.61 | 91,013 |
| 2020-02-03 | Option exercise | 2,000 | $4.40 | 93,013 |
| 2020-01-08 | Option exercise (derivative) | 2,000 | $0.00 | 169,000 |
| 2020-01-08 | Open-market sale | 2,000 | $50.00 | 91,013 |
| 2020-01-08 | Option exercise | 2,000 | $4.40 | 93,013 |
| 2019-12-18 | Open-market sale | 967 | $46.62 | 91,013 |
| 2019-12-17 | Open-market sale | 349 | $46.96 | 92,966 |
| 2019-12-17 | Open-market sale | 986 | $46.14 | 91,980 |
| 2019-12-02 | Option exercise (derivative) | 2,000 | $0.00 | 171,000 |
| 2019-12-02 | Open-market sale | 300 | $51.56 | 92,966 |
| 2019-12-02 | Option exercise | 2,000 | $4.40 | 94,966 |
| 2019-12-02 | Open-market sale | 1,700 | $50.33 | 93,266 |
| 2019-11-25 | Option exercise (derivative) | 2,000 | $0.00 | 173,000 |
| 2019-11-25 | Open-market sale | 2,000 | $50.00 | 92,966 |
| 2019-11-25 | Option exercise | 2,000 | $4.40 | 94,966 |
| 2019-08-01 | Option exercise (derivative) | 55,000 | $0.00 | 175,000 |
| 2019-08-01 | Open-market sale | 19,127 | $84.28 | 133,839 |
| 2019-08-01 | Open-market sale | 35,873 | $84.96 | 97,966 |
| 2019-08-01 | Option exercise | 55,000 | $4.40 | 152,966 |
| 2019-06-30 | Gift | 5,000 | $0.00 | 92,966 |
| 2019-06-18 | Open-market sale | 300 | $77.37 | 98,879 |
| 2019-06-18 | Open-market sale | 913 | $77.95 | 97,966 |
| 2019-05-01 | Option exercise (derivative) | 55,000 | $0.00 | 230,000 |
| 2019-05-01 | Open-market sale | 400 | $67.30 | 97,966 |
| 2019-05-01 | Open-market sale | 20,588 | $67.29 | 98,366 |
| 2019-05-01 | Open-market sale | 34,012 | $66.60 | 118,954 |
| 2019-05-01 | Option exercise | 55,000 | $4.40 | 152,966 |
| 2019-03-05 | Option exercise (derivative) | 10,000 | $0.00 | 285,000 |
| 2019-03-05 | Open-market sale | 9,998 | $57.50 | 97,968 |
| 2019-03-05 | Open-market sale | 2 | $57.86 | 97,966 |
| 2019-03-05 | Option exercise | 10,000 | $4.40 | 107,966 |
| 2019-02-01 | Option exercise (derivative) | 45,000 | $0.00 | 295,000 |
| 2019-02-01 | Open-market sale | 28,788 | $47.87 | 114,178 |
| 2019-02-01 | Open-market sale | 16,212 | $48.25 | 97,966 |
| 2019-02-01 | Option exercise | 45,000 | $4.40 | 142,996 |
| 2018-12-18 | Open-market sale | 1,562 | $39.16 | 97,966 |
| 2018-11-02 | Option exercise (derivative) | 35,000 | $0.00 | 340,000 |
| 2018-11-02 | Open-market sale | 22,249 | $39.36 | 97,966 |
| 2018-11-02 | Open-market sale | 12,751 | $38.74 | 120,215 |
| 2018-11-02 | Option exercise | 35,000 | $4.40 | 132,966 |
| 2018-11-01 | Option exercise (derivative) | 10,000 | $0.00 | 375,000 |
| 2018-11-01 | Open-market sale | 1,280 | $38.99 | 97,966 |
| 2018-11-01 | Open-market sale | 3,300 | $38.68 | 99,246 |
| 2018-11-01 | Open-market sale | 600 | $36.64 | 102,546 |
| 2018-11-01 | Open-market sale | 4,820 | $35.99 | 103,146 |
| 2018-11-01 | Option exercise | 10,000 | $4.40 | 107,966 |
| 2018-10-05 | Grant / award | 62,500 | $0.00 | 97,966 |
| 2018-09-28 | Gift | 1,200 | $0.00 | 35,466 |
| 2018-09-12 | Option exercise (derivative) | 45,000 | $0.00 | 385,000 |
| 2018-09-12 | Open-market sale | 22,236 | $41.14 | 59,430 |
| 2018-09-12 | Open-market sale | 14,565 | $41.83 | 44,865 |
| 2018-09-12 | Open-market sale | 8,199 | $42.65 | 36,666 |
| 2018-09-12 | Option exercise | 45,000 | $4.40 | 81,666 |
| 2018-03-15 | — | — | — | 36,666 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.