Bonnie L Bassler

Insider

First SEC filing: June 8, 2026 · Latest: June 8, 2026

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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.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 27 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

27 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 30, 2026	RPRX	A	689	$54.40	$37,482	79,181 Direct	+0.88%	Acquired	11.6% (price as of 2026-08-21)
June 5, 2026	RPRX	A	4,545	—	—	78,492	—	—	(price as of 2026-08-21)
Sept. 29, 2023	RPRX	A	1,384	$27.08	$37,479	45,169 Direct	+3.16%	Acquired	124.1% (price as of 2026-08-21)
June 30, 2023	RPRX	A	1,208	$31.03	$37,484	43,785 Direct	+2.84%	Acquired	95.6% (price as of 2026-08-21)
June 23, 2023	RPRX	A	7,747	—	—	42,577 Direct	+22.24%	Acquired	(price as of 2026-08-21)
March 31, 2023	RPRX	A	1,049	$35.73	$37,481	34,830 Direct	+3.11%	Acquired	69.9% (price as of 2026-08-21)
Dec. 30, 2022	RPRX	A	943	$39.76	$37,494	33,781 Direct	+2.87%	Acquired	52.6% (price as of 2026-08-21)
Sept. 30, 2022	RPRX	A	913	$41.06	$37,488	32,838 Direct	+2.86%	Acquired	47.8% (price as of 2026-08-21)
June 30, 2022	RPRX	A	903	$41.52	$37,493	31,925 Direct	+2.91%	Acquired	46.2% (price as of 2026-08-21)
June 24, 2022	RPRX	A	6,328	—	—	31,022 Direct	+25.63%	Acquired	(price as of 2026-08-21)
March 31, 2022	RPRX	A	964	$38.87	$37,471	24,694 Direct	+4.06%	Acquired	56.1% (price as of 2026-08-21)
Dec. 31, 2021	RPRX	A	958	$39.11	$37,467	23,730 Direct	+4.21%	Acquired	55.2% (price as of 2026-08-21)
Sept. 30, 2021	RPRX	A	992	$37.80	$37,498	22,772 Direct	+4.55%	Acquired	60.6% (price as of 2026-08-21)
June 30, 2021	RPRX	A	871	$43.04	$37,488	21,780 Direct	+4.17%	Acquired	41.0% (price as of 2026-08-21)
June 25, 2021	RPRX	A	5,726	—	—	20,909 Direct	+37.71%	Acquired	(price as of 2026-08-21)
March 31, 2021	RPRX	A	816	$45.90	$37,454	15,183 Direct	+5.68%	Acquired	32.2% (price as of 2026-08-21)
Dec. 31, 2020	RPRX	A	820	$45.69	$37,466	14,367 Direct	+6.05%	Acquired	32.8% (price as of 2026-08-21)
Sept. 30, 2020	RPRX	A	910	$41.17	$37,465	13,547 Direct	+7.20%	Acquired	47.4% (price as of 2026-08-21)
June 30, 2020	RPRX	A	137	$48.00	$6,576	12,637 Direct	+1.10%	Acquired	26.4% (price as of 2026-08-21)
June 19, 2020	REGN	M 10b5-1	2,559	$391.92	$1,002,923	3,202 Direct	+397.98%	Acquired	113.8% (price as of 2026-08-21)
June 19, 2020	REGN	S 10b5-1	2,548	$630.01	$1,605,265	654 Direct	-79.58%	Disposed	33.0% (price as of 2026-08-21)
June 19, 2020	REGN	S 10b5-1	11	$631.37	$6,945	643 Direct	-1.68%	Disposed	32.7% (price as of 2026-08-21)
June 19, 2020	REGN	M 10b5-1	2,559	—	—	10,235 Direct	-20.00%	Disposed	(price as of 2026-08-21)
June 18, 2020	RPRX	A	12,500	—	—	12,500 Direct	—	Acquired	(price as of 2026-08-21)
June 5, 2020	REGN	M 10b5-1	2,559	$391.92	$1,002,923	3,202 Direct	+397.98%	Acquired	113.8% (price as of 2026-08-21)
June 5, 2020	REGN	S 10b5-1	2,559	$600.00	$1,535,400	643 Direct	-79.92%	Disposed	39.6% (price as of 2026-08-21)
June 5, 2020	REGN	M 10b5-1	2,559	—	—	12,794 Direct	-16.67%	Disposed	(price as of 2026-08-21)
Jan. 2, 2018	REGN	A	7,439	—	—	7,439 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 3, 2017	REGN	A	2,438	—	—	2,438 Direct	—	Acquired	(price as of 2026-08-21)
Sept. 9, 2016	REGN	A	15,353	—	—	15,353 Direct	—	Acquired	(price as of 2026-08-21)

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
June 19, 2020	REGN	Non-Qualified Stock Option (right to buy)	Common Stock (2,559)	$391.92	Sept. 9, 2026	2,559	Disposed
June 5, 2020	REGN	Non-Qualified Stock Option (right to buy)	Common Stock (2,559)	$391.92	Sept. 9, 2026	2,559	Disposed
Jan. 2, 2018	REGN	Non-Qualified Stock Option (right to buy)	Common Stock (7,439)	$380.95	Jan. 2, 2028	7,439	Acquired
Jan. 3, 2017	REGN	Non-Qualified Stock Option (right to buy)	Common Stock (2,438)	$376.69	Jan. 3, 2027	2,438	Acquired
Sept. 9, 2016	REGN	Non-Qualified Stock Option (right to buy)	Common Stock (15,353)	$391.92	Sept. 9, 2026	15,353	Acquired

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