Jonathan B. Siegel

Director, K-V Pharmaceutical Co.

Companies

Jaguar Health, Inc.Board member Apr 10, 2018 to now¹
Opy Acquisition Corp. IBoard member Oct 27, 2021 to Oct 27, 2021²
Opy Acquisition Corp. IChief executive officer Oct 27, 2021 to Oct 27, 2021²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

Jaguar Health, Inc. JAGX7,482 shares³$22.1K at $2.96Dec 11, 2025
Opy Acquisition Corp. I0 shares⁴Oct 27, 2021

As of each latest filing. The line shows shares held over time.

Recent filings

Dec 11, 2025Granted 7,377 shares of Jaguar Health, Inc.³
Aug 14, 2023Granted 68,568 shares of Jaguar Health, Inc.⁵
May 17, 2023Exercised options 1,145 shares of Jaguar Health, Inc.⁶
May 18, 2022Exercised options 12,133 shares of Jaguar Health, Inc.⁷

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARJaguar Health, Inc., Board member
2
SEC EDGAROpy Acquisition Corp. I, Board member
3
SEC EDGARJaguar Health, Inc. shares after the filing of Dec 11, 2025
4
SEC EDGAROpy Acquisition Corp. I shares after the filing of Oct 27, 2021
5
SEC EDGARForm 4 filed Aug 14, 2023
6
SEC EDGARForm 4 filed May 19, 2023
7
SEC EDGARForm 4 filed May 18, 2022