Bylund James

Repligen Corp · Chief Operating Officer

Bylund James is listed in public filings as officer: Chief Operating Officer. This Bylund James insider trading page organizes Form 4 disclosures, reported purchases and sales, transaction dates, share amounts, related issuers, and historical insider activity so readers can review the person's public trading record in one place. Companies and tickers connected to this insider trading profile include Repligen Corp (RGEN). Investors use Bylund James's insider trading disclosures to study buying and selling patterns, position changes, company-specific activity, and the source evidence behind each reported transaction.

Latest Actions

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
Repligen CorpRGEN$1.2M8.3k sharesGrant / ExerciseMar 5, 2026$1.2M8.3k shares$141.91--
Repligen CorpRGEN--25.4k sharesGrant / ExerciseMar 5, 2026Disclosure amount unavailable7.8k shares----

Insider Trades History

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
Repligen CorpRGEN--17.7k sharesGrant / ExerciseMar 4, 2026Disclosure amount unavailable125 shares----
Repligen CorpRGEN$2.2M17.7k sharesGrant / ExerciseMar 4, 2026$7.8K62 shares$125.84--
Repligen CorpRGEN$2.2M17.6k sharesGrant / ExerciseMar 2, 2026$304.1K2.4k shares$124.97--
Repligen CorpRGEN$2.6M20k sharesGrant / ExerciseFeb 27, 2026$190.3K1.5k shares$128.73--
Repligen CorpRGEN$3.3M21.5k sharesSellNov 18, 2025$331.3K2.2k shares$151.21--
Repligen CorpRGEN$3.0M23.7k sharesGrant / ExerciseApr 1, 2025$58.3K454 shares$128.50--
Repligen CorpRGEN--24.3k sharesGrant / ExerciseMar 13, 2025Disclosure amount unavailable381 shares----
Repligen CorpRGEN$3.4M24.2k sharesGrant / ExerciseMar 13, 2025$24.9K175 shares$142.44--
Repligen CorpRGEN$941k6.1k sharesGrant / ExerciseMar 3, 2025$941.0K6.1k shares$155.38--
Repligen CorpRGEN--25.2k sharesGrant / ExerciseMar 3, 2025Disclosure amount unavailable6.4k shares----
Repligen CorpRGEN$3.7M24k sharesGrant / ExerciseMar 3, 2025$192.5K1.2k shares$155.38--
Repligen CorpRGEN$2.9M18.8k sharesGrant / ExerciseFeb 27, 2025$201.2K1.3k shares$156.54--
Repligen CorpRGEN$3.3M20k sharesGrant / ExerciseFeb 24, 2025$89.5K543 shares$164.74--