James Bylund

Insider

First SEC filing: March 8, 2021 · Latest: March 8, 2021

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.
Compensation Executive pay disclosed in company proxy statements.

Insider at

RGEN selling Nov. 18, 2025

Insider transactions

0 buys (P) 1 sells (S) Net: $-331,301 + 39 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

39 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 5, 2026	RGEN	A	8,315	—	—	8,315 Direct	—	Acquired	(price as of 2026-08-20)
March 5, 2026	RGEN	A	7,751	—	—	25,423 Direct	+43.86%	Acquired	(price as of 2026-08-20)
March 4, 2026	RGEN	F	62	$125.84	$7,802	17,672 Direct	-0.35%	Disposed	43.1% (price as of 2026-08-20)
March 4, 2026	RGEN	A	125	—	—	17,734 Direct	+0.71%	Acquired	(price as of 2026-08-20)
March 2, 2026	RGEN	F	2,433	$124.97	$304,052	17,609 Direct	-12.14%	Disposed	44.1% (price as of 2026-08-20)
Feb. 27, 2026	RGEN	F	1,478	$128.73	$190,263	20,042 Direct	-6.87%	Disposed	39.9% (price as of 2026-08-20)
Nov. 18, 2025	RGEN	S	2,191	$151.21	$331,301	21,520 Direct	-9.24%	Disposed	19.1% (price as of 2026-08-20)
April 1, 2025	RGEN	F	454	$128.50	$58,339	23,711 Direct	-1.88%	Disposed	40.2% (price as of 2026-08-20)
March 13, 2025	RGEN	F	175	$142.44	$24,927	24,165 Direct	-0.72%	Disposed	26.4% (price as of 2026-08-20)
March 13, 2025	RGEN	A	381	—	—	24,340 Direct	+1.59%	Acquired	(price as of 2026-08-20)
March 3, 2025	RGEN	A	6,056	—	—	6,056 Direct	—	Acquired	(price as of 2026-08-20)
March 3, 2025	RGEN	F	1,239	$155.38	$192,516	23,959 Direct	-4.92%	Disposed	15.9% (price as of 2026-08-20)
March 3, 2025	RGEN	A	6,435	—	—	25,198 Direct	+34.30%	Acquired	(price as of 2026-08-20)
Feb. 27, 2025	RGEN	F	1,285	$156.54	$201,154	18,763 Direct	-6.41%	Disposed	15.0% (price as of 2026-08-20)
Feb. 24, 2025	RGEN	F	543	$164.74	$89,454	20,048 Direct	-2.64%	Disposed	9.3% (price as of 2026-08-20)
April 2, 2024	RGEN	F	444	$182.95	$81,230	20,591 Direct	-2.11%	Disposed	-1.6% (price as of 2026-08-20)
March 7, 2024	RGEN	F	1,206	$195.72	$236,038	21,035 Direct	-5.42%	Disposed	-8.0% (price as of 2026-08-20)
March 5, 2024	RGEN	F	22	$195.52	$4,301	22,241 Direct	-0.10%	Disposed	-7.9% (price as of 2026-08-20)
March 4, 2024	RGEN	F	197	$193.99	$38,216	22,263 Direct	-0.88%	Disposed	-7.2% (price as of 2026-08-20)
March 1, 2024	RGEN	A	50	—	—	22,460 Direct	+0.22%	Acquired	(price as of 2026-08-20)
March 1, 2024	RGEN	F	820	$191.79	$157,268	22,410 Direct	-3.53%	Disposed	-6.1% (price as of 2026-08-20)
Feb. 29, 2024	RGEN	A	404	—	—	23,230 Direct	+1.77%	Acquired	(price as of 2026-08-20)
Feb. 27, 2024	RGEN	A	8,632	—	—	8,632 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 27, 2024	RGEN	A	8,691	—	—	22,826 Direct	+61.49%	Acquired	(price as of 2026-08-20)
Feb. 23, 2024	RGEN	M	940	—	—	4,000 Direct	+30.72%	Acquired	(price as of 2026-08-20)
Feb. 23, 2024	RGEN	S	4,373	$198.08	$866,204	14,135 Direct	-23.63%	Disposed	-9.1% (price as of 2026-08-20)
Feb. 23, 2024	RGEN	M	940	$94.33	$88,670	18,508 Direct	+5.35%	Acquired	90.9% (price as of 2026-08-20)
April 4, 2023	RGEN	F	334	$163.45	$54,592	17,568 Direct	-1.87%	Disposed	10.2% (price as of 2026-08-20)
March 3, 2023	RGEN	F	210	$188.00	$39,480	17,902 Direct	-1.16%	Disposed	-4.2% (price as of 2026-08-20)
March 3, 2023	RGEN	A	625	—	—	18,112 Direct	+3.57%	Acquired	(price as of 2026-08-20)
March 2, 2023	RGEN	A	8,644	—	—	8,644 Direct	—	Acquired	(price as of 2026-08-20)
March 2, 2023	RGEN	A	8,348	—	—	17,487 Direct	+91.34%	Acquired	(price as of 2026-08-20)
Feb. 28, 2023	RGEN	F	594	$173.44	$103,023	9,139 Direct	-6.10%	Disposed	3.8% (price as of 2026-08-20)
Aug. 3, 2022	RGEN	M	2,000	—	—	8,000 Direct	-20.00%	Disposed	(price as of 2026-08-20)
Aug. 3, 2022	RGEN	S	2,000	$240.40	$480,800	9,733 Direct	-17.05%	Disposed	-25.1% (price as of 2026-08-20)
Aug. 3, 2022	RGEN	M	2,000	$94.33	$188,660	11,733 Direct	+20.55%	Acquired	90.9% (price as of 2026-08-20)
April 1, 2022	RGEN	F	335	$188.02	$62,987	9,733 Direct	-3.33%	Disposed	-4.2% (price as of 2026-08-20)
Feb. 24, 2022	RGEN	A	4,312	—	—	4,312 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 24, 2022	RGEN	F	188	$189.21	$35,571	10,068 Direct	-1.83%	Disposed	-4.8% (price as of 2026-08-20)
Feb. 24, 2022	RGEN	A	3,366	—	—	10,256 Direct	+48.85%	Acquired	(price as of 2026-08-20)
Feb. 17, 2022	RGEN	F	334	$182.42	$60,928	6,890 Direct	-4.62%	Disposed	-1.3% (price as of 2026-08-20)
Feb. 17, 2022	RGEN	A	900	—	—	7,224 Direct	+14.23%	Acquired	(price as of 2026-08-20)
April 6, 2021	RGEN	S	360	$204.25	$73,530	6,324 Direct	-5.39%	Disposed	-11.8% (price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
March 5, 2026	RGEN	Stock Option (Right to Buy)	Common Stock (8,315)	$141.91	March 5, 2036	8,315	Acquired
March 3, 2025	RGEN	Stock Option (Right to Buy)	Common Stock (6,056)	$155.38	March 3, 2035	6,056	Acquired
Feb. 27, 2024	RGEN	Stock Option (Right to Buy)	Common Stock (8,632)	$192.71	Feb. 27, 2034	8,632	Acquired
Feb. 23, 2024	RGEN	Stock Option (Right to Buy)	Common Stock (940)	$94.33	April 1, 2030	940	Acquired
March 2, 2023	RGEN	Stock Option (Right to Buy)	Common Stock (8,644)	$180.48	March 2, 2033	8,644	Acquired
Aug. 3, 2022	RGEN	Stock Option (Right to Buy)	Common Stock (2,000)	$94.33	April 1, 2030	2,000	Disposed
Feb. 24, 2022	RGEN	Stock Option (Right to Buy)	Common Stock (4,312)	$189.21	Feb. 24, 2032	4,312	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 5 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
March 8, 2021	RGEN	Common Stock	5,000	Direct
March 8, 2021	RGEN	Common Stock	1,684	Direct
March 8, 2021	RGEN	Stock Option (Right to Buy)→ Common Stock (5,300)	5,300	Direct
March 8, 2021	RGEN	Stock Option (Right to Buy)→ Common Stock (4,700)	4,700	Direct
March 8, 2021	RGEN	Stock Option (Right to Buy)→ Common Stock (2,033)	2,033	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

RGEN

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2021	$363,000	—	—	—	$357,555	—	$5,000	$1,843,687

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.