Insiders / Nelsen Robert

Nelsen Robert

CIK 1219042personinsider

Companies

5

First seen

Mar 9, 2026

Last activity

Jun 24, 2026

Companies

Company	Role	Shares held	Peak held	Trades	Latest
Kardigan, Inc. · KARD	Director	—	—	0	—
Lyell Immunopharma, Inc. · LYEL	10% owner	—	—	0	—
Prime Medicine, Inc. · PRME	Director	—	75,000	1	—
Sana Biotechnology, Inc. · SANA	Director	—	90,000	1	—
Seaport Therapeutics, Inc. · SPTX	10% owner	—	—	0	—

All securities held

2 positions · latest reported per filing

Company	Security	Shares	As of
Prime Medicine, Inc.	Stock Option (right to buy)Derivative	75,000	Jun 5, 2026
Sana Biotechnology, Inc.	Stock Option (Right to Buy)Derivative	90,000	Jun 4, 2026

Activity

InsidersInstitutions

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

Date	Action	Company	Value	Shares Δ	Position after	Impact
Jun 5, 2026	Grant	PRME Prime Medicine, Inc. Stock Option (right to buy)	—	+75K	75,000 0.04% of shares	low
Jun 4, 2026	Grant	SANA Sana Biotechnology, Inc. Stock Option (Right to Buy)	—	+90K	90,000 0.03% of shares	low