Norden Gregory

Director · PRAX, RPRX, ZTS

As of 2026-09-16, Norden Gregory has 28 Form 4 transactions on record across 3 companies — 11 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $11.7MIndirect: $0$11.7Mas of 2026-09-16
  • Direct $11.7M
  • Indirect $0
RPRXdirect196,348 sh$11.5M
PRAXdirect648 sh$200K

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

ZTS · 19 trades
2026-03-09: Gift, 1,213 sh ($0)2026-02-19: Other acquisition, 406 sh ($52K)2026-02-19: Option exercise, 1,619 sh2026-02-19: Option exercise, 1,619 sh2026-02-19: Option exercise, 1,619 sh2026-02-19: Option exercise, 1,619 sh2026-02-18: Award / grant, 1,936 sh ($0)2025-02-19: Award / grant, 1,596 sh ($0)2025-02-14: Gift, 1,843 sh ($0)2025-02-08: Other acquisition, 308 sh ($53K)2025-02-08: Option exercise, 1,225 sh2025-02-08: Option exercise, 1,225 sh2025-02-08: Option exercise, 1,225 sh2025-02-08: Option exercise, 1,225 sh2025-02-06: Other acquisition, 310 sh ($54K)2025-02-06: Option exercise, 1,236 sh2025-02-06: Option exercise, 1,236 sh2025-02-06: Option exercise, 1,236 sh2025-02-06: Option exercise, 1,236 sh
RPRX · 6 trades
2026-06-05: Award / grant, 4,545 sh ($0)2026-05-14: Sale, 3,045 sh ($161K)2025-08-11: Sale, 33,500 sh ($1.2M)2025-08-08: Conversion, 144,660 sh ($0)2025-08-08: Conversion, 14,466 sh ($0)2025-05-13: Award / grant, 7,614 sh ($0)
PRAX · 3 trades
2026-06-10: Award / grant, 648 sh ($0)2026-06-10: Award / grant, 1,371 sh ($0)2025-06-26: Award / grant, 10,520 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-05-14RPRXSale3,045 @ $53.00$161K−1.6% of holding191,803Form 4
2025-08-11RPRXSale33,500 @ $36.23$1.2M−14.7% of holding194,848Form 4
26 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-10PRAXAward / grant648648Form 4
2026-06-10PRAXAward / grant1,3711,559Form 4
2026-06-05RPRXAward / grant4,545196,348Form 4
2026-03-09ZTSGift1,2130Form 4
2026-02-19ZTSOther acquisition4061,213Form 4
2026-02-19ZTSOption exercise1,6190Form 4
2026-02-19ZTSOption exercise1,6191,619Form 4
2026-02-19ZTSOption exercise1,6190Form 4
2026-02-19ZTSOption exercise1,6191,619Form 4
2026-02-18ZTSAward / grant1,9361,936Form 4
2025-08-08RPRXConversion144,660228,348Form 4
2025-08-08RPRXConversion14,4660Form 4
2025-06-26PRAXAward / grant10,52010,520Form 4
2025-05-13RPRXAward / grant7,61483,688Form 4
2025-02-19ZTSAward / grant1,5961,596Form 4
2025-02-14ZTSGift1,8430Form 4
2025-02-08ZTSOther acquisition3081,843Form 4
2025-02-08ZTSOption exercise1,2252,151Form 4
2025-02-08ZTSOption exercise1,2250Form 4
2025-02-08ZTSOption exercise1,2252,151Form 4
2025-02-08ZTSOption exercise1,2250Form 4
2025-02-06ZTSOther acquisition310926Form 4
2025-02-06ZTSOption exercise1,2361,236Form 4
2025-02-06ZTSOption exercise1,2360Form 4
2025-02-06ZTSOption exercise1,2361,236Form 4
2025-02-06ZTSOption exercise1,2360Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.