The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 1, 2026 | Williams Paul Anthony | SVP, Products Business | Sell(S) | 3K | $8.40 | $25K |
| Jun 8, 2026 | Williams Paul Anthony | SVP, Products Business | Tax withholding(F) | 694 | $8.00 | $6K |
| Jun 8, 2026 | Lindahl Richard S | EVP, Chief Financial Officer | Tax withholding(F) | 4K | $8.00 | $32K |
| Jun 8, 2026 | Glessner Coleen | EVP, Quality & Ethics, and CPL | Tax withholding(F) | 2K | $8.00 | $16K |
| Jun 8, 2026 | Hartzel William | SVP, Bioservices | Tax withholding(F) | 2K | $8.00 | $14K |
| May 1, 2026 | DeGolyer Donald W | Director | Sell(S) | 15K | $8.36 | $121K |
| May 1, 2026 | DeGolyer Donald W | Director | Sell(S) | 954 | $8.96 | $9K |
| May 1, 2026 | Dayal Sujata Tyagi | Director | Sell(S) | 13K | $8.36 | $107K |
| May 1, 2026 | Dayal Sujata Tyagi | Director | Sell(S) | 980 | $8.94 | $9K |
| May 1, 2026 | Zoon Kathryn C | Director | Sell(S) | 16K | $8.36 | $135K |
| May 1, 2026 | Zoon Kathryn C | Director | Sell(S) | 1K | $8.97 | $9K |
| Apr 30, 2026 | DeGolyer Donald W | Director | Grant(A) | 25K | — | $0 |
| Apr 30, 2026 | DeGolyer Donald W | Director | Grant(A) | 11K | — | $0 |
| Apr 30, 2026 | Dayal Sujata Tyagi | Director | Grant(A) | 25K | — | $0 |
| Apr 30, 2026 | Dayal Sujata Tyagi | Director | Grant(A) | 11K | — | $0 |
| Apr 30, 2026 | Zoon Kathryn C | Director | Grant(A) | 25K | — | $0 |
| Apr 30, 2026 | Zoon Kathryn C | Director | Grant(A) | 11K | — | $0 |
| Apr 30, 2026 | Fowler John D JR | Director | Grant(A) | 25K | — | $0 |
| Apr 30, 2026 | Fowler John D JR | Director | Grant(A) | 11K | — | $0 |
| Apr 30, 2026 | Katkin Keith | Director | Grant(A) | 25K | — | $0 |
| Apr 30, 2026 | Katkin Keith | Director | Sell(S) | 15K | $8.28 | $128K |
| Apr 30, 2026 | Katkin Keith | Director | Grant(A) | 11K | — | $0 |
| Apr 30, 2026 | Richard Ronald | Director | Grant(A) | 25K | — | $0 |
| Apr 30, 2026 | Richard Ronald | Director | Grant(A) | 11K | — | $0 |
| Apr 30, 2026 | Harsanyi Zsolt | Chairman, Director | Grant(A) | 25K | — | $0 |
| Apr 30, 2026 | Harsanyi Zsolt | Chairman, Director | Grant(A) | 11K | — | $0 |
| Apr 30, 2026 | White Marvin L | Director | Grant(A) | 25K | — | $0 |
| Apr 30, 2026 | White Marvin L | Director | Grant(A) | 11K | — | $0 |
| Apr 30, 2026 | Fowler Neal Franklin | Director | Grant(A) | 25K | — | $0 |
| Apr 30, 2026 | Fowler Neal Franklin | Director | Grant(A) | 11K | — | $0 |
| Apr 29, 2026 | Lindahl Richard S | EVP, Chief Financial Officer | Grant(A) | 163K | — | $0 |
| Apr 29, 2026 | Papa Joseph C | President and CEO, Director | Grant(A) | 188K | — | $0 |
| Apr 29, 2026 | Glessner Coleen | EVP, Quality & Ethics, and CPL | Grant(A) | 100K | — | $0 |
| Apr 29, 2026 | Williams Paul Anthony | SVP, Products Business | Grant(A) | 100K | — | $0 |
| Apr 29, 2026 | Perl Jessica | SVP, General Counsel, Corp Sec | Grant(A) | 104K | — | $0 |
| Apr 29, 2026 | Lowry Simon C | SVP, R&D, CMO | Grant(A) | 100K | — | $0 |
| Apr 29, 2026 | Hartzel William | SVP, Bioservices | Grant(A) | 100K | — | $0 |
| Apr 1, 2026 | Williams Paul Anthony | SVP, Products Business | Sell(S) | 4K | $8.44 | $34K |
| Mar 5, 2026 | Lindahl Richard S | EVP, Chief Financial Officer | Tax withholding(F) | 24K | $8.44 | $200K |
| Mar 5, 2026 | Papa Joseph C | President and CEO, Director | Tax withholding(F) | 37K | $8.44 | $313K |
| Mar 5, 2026 | Glessner Coleen | EVP, Quality & Ethics, and CPL | Tax withholding(F) | 8K | $8.44 | $69K |
| Mar 5, 2026 | Williams Paul Anthony | SVP, Products Business | Tax withholding(F) | 9K | $8.44 | $79K |
| Mar 5, 2026 | Hartzel William | SVP, Bioservices | Tax withholding(F) | 9K | $8.44 | $80K |
| Mar 5, 2026 | Perl Jessica | SVP, General Counsel, Corp Sec | Tax withholding(F) | 6K | $8.44 | $55K |
| Mar 5, 2026 | Lowry Simon C | SVP, R&D, CMO | Tax withholding(F) | 11K | $8.44 | $90K |
| Mar 3, 2026 | Fowler John D JR | Director | Grant(A) | 5K | $8.99 | $45K |
| Mar 3, 2026 | Lindahl Richard S | EVP, Chief Financial Officer | Grant(A) | 73K | — | $0 |
| Mar 3, 2026 | Papa Joseph C | President and CEO, Director | Grant(A) | 252K | — | $0 |
| Mar 3, 2026 | Glessner Coleen | EVP, Quality & Ethics, and CPL | Grant(A) | 45K | — | $0 |
| Mar 3, 2026 | Williams Paul Anthony | SVP, Products Business | Grant(A) | 45K | — | $0 |
| Mar 3, 2026 | Hartzel William | SVP, Bioservices | Grant(A) | 45K | — | $0 |
| Mar 3, 2026 | Perl Jessica | SVP, General Counsel, Corp Sec | Grant(A) | 47K | — | $0 |
| Mar 3, 2026 | Lowry Simon C | SVP, R&D, CMO | Grant(A) | 45K | — | $0 |
| Mar 1, 2026 | Lindahl Richard S | EVP, Chief Financial Officer | Tax withholding(F) | 683 | $8.15 | $6K |
| Mar 1, 2026 | Glessner Coleen | EVP, Quality & Ethics, and CPL | Tax withholding(F) | 313 | $8.15 | $3K |
| Mar 1, 2026 | Williams Paul Anthony | SVP, Products Business | Tax withholding(F) | 116 | $8.15 | $945 |
| Feb 25, 2026 | Lindahl Richard S | EVP, Chief Financial Officer | Expiration(H) | 20K | — | $0 |
| Feb 9, 2026 | Perl Jessica | SVP, General Counsel, Corp Sec | Tax withholding(F) | 918 | $11.03 | $10K |
| Feb 6, 2026 | Lindahl Richard S | EVP, Chief Financial Officer | Disposed to issuer(D) | 46K | $10.92 | $504K |
| Feb 6, 2026 | Lindahl Richard S | EVP, Chief Financial Officer | Tax withholding(F) | 6K | $10.92 | $62K |
| Feb 6, 2026 | Glessner Coleen | EVP, Quality & Ethics, and CPL | Disposed to issuer(D) | 29K | $10.92 | $315K |
| Feb 6, 2026 | Glessner Coleen | EVP, Quality & Ethics, and CPL | Tax withholding(F) | 3K | $10.92 | $31K |
| Feb 6, 2026 | Williams Paul Anthony | SVP, Products Business | Disposed to issuer(D) | 9K | $10.92 | $95K |
| Feb 6, 2026 | Williams Paul Anthony | SVP, Products Business | Tax withholding(F) | 1K | $10.92 | $11K |
| Feb 6, 2026 | Hartzel William | SVP, Bioservices | Disposed to issuer(D) | 6K | $10.92 | $63K |
| Feb 6, 2026 | Hartzel William | SVP, Bioservices | Tax withholding(F) | 630 | $10.92 | $7K |
| Dec 14, 2025 | Lowry Simon C | SVP, R&D, CMO | Tax withholding(F) | 4K | $11.41 | $40K |
| Dec 5, 2025 | Richard Ronald | Director | Sell(S) | 15K | $11.90 | $177K |
| Dec 5, 2025 | Richard Ronald | Director | Tax withholding(F) | 11K | $11.90 | $129K |
| Dec 5, 2025 | Richard Ronald | Director | Option exercise(M) | 26K | $5.02 | $129K |
| Dec 5, 2025 | Richard Ronald | Director | Sell(S) | 7K | $12.11 | $86K |
| Dec 5, 2025 | Richard Ronald | Director | Option exercise(M) | 26K | — | $0 |
| Nov 11, 2025 | Hartzel William | SVP, Bioservices | Tax withholding(F) | 610 | $10.88 | $7K |
| Nov 10, 2025 | DeGolyer Donald W | Director | Sell(S) | 18K | $10.54 | $188K |
| Nov 7, 2025 | Dayal Sujata Tyagi | Director | Sell(S) | 9K | $10.00 | $86K |
| Oct 15, 2025 | Lindahl Richard S | EVP, Chief Financial Officer | Tax withholding(F) | 5K | $9.60 | $48K |
| Oct 7, 2025 | Glessner Coleen | EVP, Quality & Ethics, and CPL | Sell(S) | 31K | $10.00 | $306K |
| Aug 15, 2025 | Zoon Kathryn C | Director | Sell(S) | 7K | $8.87 | $63K |
| Aug 12, 2025 | DeGolyer Donald W | Director | Sell(S) | 8K | $8.65 | $68K |
| Jul 11, 2025 | Hartzel William | SVP, Bioservices | Tax withholding(F) | 4K | $7.36 | $31K |
| Jun 8, 2025 | Lindahl Richard S | EVP, Chief Financial Officer | Tax withholding(F) | 3K | $6.63 | $18K |
| Jun 8, 2025 | Williams Paul Anthony | SVP, Products Business | Tax withholding(F) | 464 | $6.63 | $3K |
| Jun 8, 2025 | Glessner Coleen | EVP, Quality & Ethics, and CPL | Tax withholding(F) | 1K | $6.63 | $8K |
| Jun 8, 2025 | Hartzel William | SVP, Bioservices | Tax withholding(F) | 1K | $6.63 | $8K |
| May 23, 2025 | Katkin Keith | Director | Sell(S) | 8K | $6.30 | $49K |
| May 13, 2025 | Papa Joseph C | President and CEO, Director | Buy(P) | 60K | $5.83 | $350K |
| May 7, 2025 | Lindahl Richard S | EVP, Chief Financial Officer | Expiration(H) | 20K | — | $0 |
| Apr 30, 2025 | Sullivan Louis W | Director | Grant(A) | 34K | — | $0 |
| Apr 30, 2025 | Sullivan Louis W | Director | Grant(A) | 16K | — | $0 |
| Apr 30, 2025 | DeGolyer Donald W | Director | Grant(A) | 34K | — | $0 |
| Apr 30, 2025 | DeGolyer Donald W | Director | Grant(A) | 16K | — | $0 |
| Apr 30, 2025 | Harsanyi Zsolt | Chairman, Director | Grant(A) | 34K | — | $0 |
| Apr 30, 2025 | Harsanyi Zsolt | Chairman, Director | Grant(A) | 16K | — | $0 |
| Apr 30, 2025 | Katkin Keith | Director | Grant(A) | 34K | — | $0 |
| Apr 30, 2025 | Katkin Keith | Director | Grant(A) | 16K | — | $0 |
| Apr 30, 2025 | Dayal Sujata Tyagi | Director | Grant(A) | 34K | — | $0 |
| Apr 30, 2025 | Dayal Sujata Tyagi | Director | Grant(A) | 16K | — | $0 |
| Apr 30, 2025 | Zoon Kathryn C | Director | Grant(A) | 34K | — | $0 |
| Apr 30, 2025 | Zoon Kathryn C | Director | Grant(A) | 16K | — | $0 |
| Apr 30, 2025 | Fowler Neal Franklin | Director | Grant(A) | 34K | — | $0 |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2021-01-04 → 2026-07-22. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).