Insiders / Bassler Bonnie L

Bassler Bonnie L

CIK 1683607personinsider

Companies

3

First seen

Jan 2, 2026

Last activity

Mar 31, 2026

Companies

Company	Role	Shares held	Peak held	Trades	Latest
Regeneron Pharmaceuticals, Inc. · REGN	Director	1,703	3,203	5	—
Cidara Therapeutics, Inc. · CDTX	Director	0	0	8	—
Royalty Pharma plc · RPRX	Director	—	73,947	2	—

All securities held

3 positions · latest reported per filing

Company	Security	Shares	As of
Regeneron Pharmaceuticals, Inc.	Common Stock	1,703	Jan 7, 2026
Regeneron Pharmaceuticals, Inc.	Non-Qualified Stock Option (right to buy)Derivative	2,861	Jan 7, 2026
Royalty Pharma plc	Class A Ordinary Shares	73,947	Mar 31, 2026

Activity

InsidersInstitutions

This person's insider trades (Form 4), across every company.

Date	Action	Company	Value	Shares Δ	Position after	Impact
Jan 7, 2026	Sell	REGN Regeneron Pharmaceuticals, Inc. Common Stock	$1.20M	-2K -46.83%	1,703 <0.01% of shares	medium
Jan 7, 2026	Exercise	REGN Regeneron Pharmaceuticals, Inc. Common Stock	$561.2K	+2K +88.08%	3,203 <0.01% of shares	low
Mar 31, 2026	Grant	RPRX Royalty Pharma plc Class A Ordinary Shares	$37.5K	+815 +1.11%	73,947 0.01% of shares	low
Dec 31, 2025	Grant	RPRX Royalty Pharma plc Class A Ordinary Shares	$37.5K	+967 +1.34%	73,132 0.01% of shares	low
Jan 7, 2026	Other	CDTX Cidara Therapeutics, Inc. Common Stock	$3.3K	-15 -100.00%	0 0.00% of shares	low
Jan 2, 2026	Grant	REGN Regeneron Pharmaceuticals, Inc. Common Stock	$0	+155 +10.01%	1,703 <0.01% of shares	low
Jan 7, 2026	Exercise	REGN Regeneron Pharmaceuticals, Inc. Non-Qualified Stock Option (right to buy)	—	-2K -34.40%	2,861 <0.01% of shares	low
Jan 7, 2026	Other	CDTX Cidara Therapeutics, Inc. Stock Option (right to buy)	—	-11K -100.00%	0 0.00% of shares	low
Jan 7, 2026	Other	CDTX Cidara Therapeutics, Inc. Stock Option (right to buy)	—	-16K -100.00%	0 0.00% of shares	low
Jan 7, 2026	Other	CDTX Cidara Therapeutics, Inc. Stock Option (right to buy)	—	-2K -100.00%	0 0.00% of shares	low