Repligen Corp. (RGEN) Insider Trading
Directors, officers and holders of more than 10% of RGEN report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 179 transactions on file: 0 with code P, 10 with code S and 40 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 6, 2026 | Douglass Brian Robb | CHIEF PRODUCT OFFICER | A Award | 675 | Not measured | Not measured |
| Oct 6, 2026 | Douglass Brian Robb | CHIEF PRODUCT OFFICER | A Award | 700 | Not measured | Not measured |
| Oct 5, 2026 | Loeillot Olivier | Chief Executive Officer | M Exercise | 4,202 | Not measured | Not measured |
| Oct 5, 2026 | Loeillot Olivier | Chief Executive Officer | S Sale | 4,202 | $190.00 | $798,380 |
| Oct 5, 2026 | Loeillot Olivier | Chief Executive Officer | M Exercise | 4,202 | $154.96 | $651,142 |
| Oct 5, 2026 | Loeillot Olivier | Chief Executive Officer | S Sale | 1,333 | $178.75 | $238,274 |
| Oct 2, 2026 | Loeillot Olivier | Chief Executive Officer | F Tax Payment | 1,248 | $181.70 | $226,762 |
| Sep 25, 2026 | Garland Jason K | CFO | F Tax Payment | 421 | $189.68 | $79,855 |
| Sep 24, 2026 | Loeillot Olivier | Chief Executive Officer | M Exercise | 8,404 | $154.96 | $1,302,284 |
| Sep 24, 2026 | Loeillot Olivier | Chief Executive Officer | M Exercise | 4,542 | Not measured | Not measured |
| Sep 24, 2026 | Loeillot Olivier | Chief Executive Officer | S Sale | 8,404 | $190.00 | $1,596,760 |
| Sep 24, 2026 | Loeillot Olivier | Chief Executive Officer | M Exercise | 8,404 | Not measured | Not measured |
| Sep 24, 2026 | Loeillot Olivier | Chief Executive Officer | M Exercise | 4,542 | $155.38 | $705,736 |
| Sep 24, 2026 | Loeillot Olivier | Chief Executive Officer | S Sale | 4,542 | $190.00 | $862,980 |
| Sep 21, 2026 | Loeillot Olivier | Chief Executive Officer | M Exercise | 5,426 | $141.79 | $769,353 |
| Sep 21, 2026 | Loeillot Olivier | Chief Executive Officer | M Exercise | 5,426 | Not measured | Not measured |
| Sep 21, 2026 | Loeillot Olivier | Chief Executive Officer | S Sale | 5,426 | $180.00 | $976,680 |
| Sep 4, 2026 | Loeillot Olivier | Chief Executive Officer | S Sale | 3,035 | $165.90 | $503,507 |
| Sep 3, 2026 | Loeillot Olivier | Chief Executive Officer | F Tax Payment | 2,842 | $169.61 | $482,032 |
| Sep 1, 2026 | Hughes Violetta | CHIEF ACCOUNTING OFFICER | F Tax Payment | 277 | $170.02 | $47,096 |
| Aug 20, 2026 | Loeillot Olivier | Chief Executive Officer | S Sale | 5,426 | $180.00 | $976,680 |
| Aug 20, 2026 | Loeillot Olivier | Chief Executive Officer | M Exercise | 5,426 | Not measured | Not measured |
| Aug 20, 2026 | Loeillot Olivier | Chief Executive Officer | M Exercise | 5,426 | $141.79 | $769,353 |
| Jul 16, 2026 | Garland Jason K | CFO | S Sale | 530 | $150.00 | $79,500 |
| Jun 25, 2026 | Garland Jason K | CFO | S Sale | 733 | $145.00 | $106,285 |
| May 14, 2026 | MUIR GLENN P | Director | A Award | 2,239 | Not measured | Not measured |
| May 14, 2026 | Konstantinov Konstantin | Director | A Award | 2,239 | Not measured | Not measured |
| May 14, 2026 | Madaus Martin D | Director | A Award | 2,239 | Not measured | Not measured |
| May 14, 2026 | Madaus Martin D | Director | A Award | 995 | Not measured | Not measured |
| May 14, 2026 | DAWES KAREN A | Director | A Award | 2,239 | Not measured | Not measured |
| May 14, 2026 | EGLINTON MANNER CARRIE | Director | A Award | 2,239 | Not measured | Not measured |
| May 14, 2026 | Konstantinov Konstantin | Director | A Award | 995 | Not measured | Not measured |
| May 14, 2026 | Mhatre Rohin | Director | A Award | 2,239 | Not measured | Not measured |
| May 14, 2026 | MUIR GLENN P | Director | A Award | 995 | Not measured | Not measured |
| May 14, 2026 | Mhatre Rohin | Director | A Award | 995 | Not measured | Not measured |
| May 14, 2026 | DAWES KAREN A | Director | A Award | 995 | Not measured | Not measured |
| May 14, 2026 | EGLINTON MANNER CARRIE | Director | A Award | 995 | Not measured | Not measured |
| May 14, 2026 | Pax Margaret | Director | A Award | 995 | Not measured | Not measured |
| May 14, 2026 | BARTHELEMY NICOLAS | Director | A Award | 995 | Not measured | Not measured |
| May 14, 2026 | Pax Margaret | Director | A Award | 2,239 | Not measured | Not measured |
| May 14, 2026 | BARTHELEMY NICOLAS | Director | A Award | 2,239 | Not measured | Not measured |
| May 7, 2026 | Douglass Brian Robb | CHIEF PRODUCT OFFICER | F Tax Payment | 334 | $126.43 | $42,228 |
| May 7, 2026 | MUIR GLENN P | Director | M Exercise | 2,434 | $38.76 | $94,342 |
| May 7, 2026 | MUIR GLENN P | Director | M Exercise | 2,434 | Not measured | Not measured |
| Apr 21, 2026 | Loeillot Olivier | Chief Executive Officer | S Sale | 3,832 | $140.00 | $536,480 |
| Mar 5, 2026 | Hughes Violetta | CHIEF ACCOUNTING OFFICER | A Award | 2,466 | Not measured | Not measured |
| Mar 5, 2026 | Loeillot Olivier | Chief Executive Officer | A Award | 25,890 | Not measured | Not measured |
| Mar 5, 2026 | Bylund James | Chief Operating Officer | A Award | 7,751 | Not measured | Not measured |
| Mar 5, 2026 | KURIYEL RALF | Senior VP, R&D | A Award | 5,669 | Not measured | Not measured |
| Mar 5, 2026 | Bylund James | Chief Operating Officer | A Award | 8,315 | Not measured | Not measured |
The full Form 4 history is on the RGEN company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.