Robert Nelsen

CIK 1219042 · View on SEC EDGAR ↗

Insider Activist

First SEC filing: May 6, 2026 · Latest: June 8, 2026

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 95 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

95 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Aug. 1, 2025 PRME P 3,030,300 $3.30 $9,999,990 6,230,300 Indirect +94.70% Acquired 2.9% (price as of 2026-08-19)
Feb. 15, 2024 PRME P 3,200,000 $6.25 $20,000,000 3,200,000 Indirect — Acquired -45.7% (price as of 2026-08-19)
Feb. 8, 2024 SANA P 727,272 $5.50 $3,999,996 12,446,022 Indirect +6.21% Acquired -27.7% (price as of 2026-08-19)
Feb. 8, 2024 SANA P 727,272 $5.50 $3,999,996 12,446,022 Indirect +6.21% Acquired -27.7% (price as of 2026-08-19)
Feb. 8, 2024 SANA P 363,637 $5.50 $2,000,004 10,667,387 Indirect +3.53% Acquired -27.7% (price as of 2026-08-19)

Showing latest 100 of 220 transactions

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
Sept. 8, 2023 LYEL Option (right to buy) [F3] Common Stock (55,000) $3.19 Sept. 7, 2033 55,000 Acquired
June 16, 2023 LYEL Option (right to buy) Common Stock (65,000) $3.19 June 15, 2033 65,000 Acquired
May 22, 2023 VIR Stock Option (Right to Buy) Common Stock (12,054) $25.74 May 21, 2033 12,054 Acquired
June 8, 2022 LYEL Option (right to buy) Common Stock (65,000) $5.31 June 7, 2032 65,000 Acquired
May 23, 2022 VIR Stock Option (Right to Buy) Common Stock (12,810) $24.14 May 22, 2032 12,810 Acquired
June 21, 2021 LYEL Series C Convertible Preferred Stock Common Stock (435,142) — — 435,142 Disposed
June 21, 2021 LYEL Series C Convertible Preferred Stock Common Stock (435,142) — — 435,142 Disposed
June 21, 2021 LYEL Series A Convertible Preferred Stock Common Stock (17,771,216) — — 17,771,216 Disposed
June 21, 2021 LYEL Series A Convertible Preferred Stock Common Stock (17,771,216) — — 17,771,216 Disposed
June 2, 2021 DNLI Stock Option (right to buy) Common Stock (6,222) $63.76 June 2, 2031 6,222 Acquired
June 1, 2021 DNLI Restricted Stock Units Common Stock (3,253) — — 3,253 Disposed
May 21, 2021 VIR Stock Option (Right to Buy) Common Stock (6,748) $45.28 May 20, 2031 6,748 Acquired
Feb. 8, 2021 SANA Series A-1 Convertible Preferred Stock Common Stock (3,687,500) — — 3,687,500 Disposed
Feb. 8, 2021 SANA Series A-1 Convertible Preferred Stock Common Stock (3,687,500) — — 3,687,500 Disposed
Feb. 8, 2021 SANA Series A-2 Convertible Preferred Stock Common Stock (5,687,500) — — 5,687,500 Disposed
Feb. 8, 2021 SANA Series A-2 Convertible Preferred Stock Common Stock (9,375,000) — — 9,375,000 Disposed
Feb. 8, 2021 SANA Series A-2 Convertible Preferred Stock Common Stock (9,375,000) — — 9,375,000 Disposed
Feb. 8, 2021 SANA Series A-2 Convertible Preferred Stock Common Stock (5,687,500) — — 5,687,500 Disposed
Feb. 8, 2021 SANA Series B Convertible Preferred Stock Common Stock (781,250) — — 781,250 Disposed
Feb. 8, 2021 SANA Series B Convertible Preferred Stock Common Stock (781,250) — — 781,250 Disposed
Feb. 8, 2021 SANA Series B Convertible Preferred Stock Common Stock (2,343,750) — — 2,343,750 Disposed
Feb. 8, 2021 SANA Series B Convertible Preferred Stock Common Stock (2,343,750) — — 2,343,750 Disposed
Feb. 3, 2021 SANA Stock Option (Right to Buy) Common Stock $25.00 Feb. 2, 2031 23,591 Acquired
Feb. 3, 2021 SANA Stock Option (Right to Buy) Common Stock (14,000) $25.00 Feb. 2, 2031 14,000 Acquired
June 3, 2020 DNLI Restricted Stock Units Common Stock (3,253) — — 3,253 Acquired
June 3, 2020 DNLI Stock Option (right to buy) Common Stock (15,183) $28.82 June 2, 2030 15,183 Acquired
May 21, 2020 VIR Stock Option (Right to Buy) Common Stock (24,885) $37.06 May 20, 2030 24,885 Acquired
May 21, 2020 VIR Stock Option (Right to Buy) Common Stock (28,888) $37.06 May 21, 2030 28,888 Acquired
Feb. 10, 2020 BEAM Series B Preferred Stock Common Stock (33,184) — — 33,184 Disposed
Feb. 10, 2020 BEAM Series B Preferred Stock Common Stock (33,184) — — 33,184 Disposed
Feb. 10, 2020 BEAM Series A-2 Preferred Stock Common Stock (2,750,335) — — 2,750,335 Disposed
Feb. 10, 2020 BEAM Series A-2 Preferred Stock Common Stock (2,750,336) — — 2,750,336 Disposed
Feb. 10, 2020 BEAM Series A-1 Preferred Stock Common Stock (1,338,000) — — 1,338,000 Disposed
Feb. 10, 2020 BEAM Series A-1 Preferred Stock Common Stock (1,338,000) — — 1,338,000 Disposed
Oct. 16, 2019 VIR Series B Convertible Preferred Stock Common Stock (2,222,222) — — 2,222,222 Disposed
Oct. 16, 2019 VIR Series B Convertible Preferred Stock Common Stock (555,555) — — 555,555 Disposed
Oct. 16, 2019 VIR Series A-1 Convertible Preferred Stock Common Stock (13,333,332) — — 13,333,332 Disposed
Oct. 16, 2019 VIR Series A-1 Convertible Preferred Stock Common Stock (11,111,110) — — 11,111,110 Disposed
May 30, 2019 DNLI Stock Option (right to buy) Common Stock (27,245) $19.50 May 29, 2029 27,245 Acquired
June 13, 2018 DNLI Stock Option (right to buy) Common Stock (27,830) $18.92 June 12, 2028 27,830 Acquired
Dec. 12, 2017 DNLI Series B-1 Preferred Stock Common Stock (312,500) — — 312,500 Disposed
Dec. 12, 2017 DNLI Series A-2 Preferred Stock Common Stock (375,000) — — 375,000 Disposed
Dec. 12, 2017 DNLI Series A-1 Preferred Stock Common Stock (10,068,749) — — 10,068,749 Disposed
Dec. 7, 2017 DNLI Stock Option (right to buy) Common Stock (47,165) $18.00 Dec. 6, 2027 47,165 Acquired
June 21, 2016 AGIO Stock option (right to buy) Common stock (8,000) $47.33 June 20, 2026 8,000 Acquired
June 23, 2015 AGIO Stock Option (right to buy) Common Stock (10,625) $103.63 June 22, 2025 10,625 Acquired
May 30, 2014 AGIO Stock Option (right to buy) Common Stock (12,500) $35.16 May 29, 2024 12,500 Acquired
Oct. 4, 2013 FATE Series C Convertible Preferred Stock Common Stock (570,663) — — 570,663 Disposed
Oct. 4, 2013 FATE Series B Convertible Preferred Stock Common Stock (265,252) — — 230,769 Disposed
Oct. 4, 2013 FATE Series A Convertible Preferred Stock Common Stock (675,493) — — 675,493 Disposed
July 29, 2013 AGIO Series C-2 Convertible Preferred Stock Common Stock (224,375) — — 617,031 Disposed
July 29, 2013 AGIO Series A Convertible Preferred Stock Common Stock (3,636,363) — — 10,000,000 Disposed
June 17, 2005 BGMS Stock Option (Right To Buy) [F1] Common Stock (10,000) $0.63 June 17, 2015 10,000 Acquired
Oct. 29, 2004 BGMS 6% Convertible Exchangeable Preferred Stock Common — — 200,000 Acquired
March 19, 2004 BGMS Warrants to purchase Common Stock Common (88,390) — Feb. 4, 2007 89,002 Disposed
March 19, 2004 BGMS Series F Convertible Preferred Stock Common (163,473) — — 899,104 Disposed
March 19, 2004 BGMS 6% Convertible Promissory Notes Common (354,837) — April 30, 2004 354,837 Disposed
March 19, 2004 BGMS Warrants to purchase Common Stock Common (91,943) — Nov. 12, 2006 92,580 Disposed
March 19, 2004 BGMS Warrants to purchase Common Stock Common (21,365) — Aug. 8, 2005 26,918 Disposed
March 19, 2004 BGMS Warrants to purchase Series A Convertible Preferred Common (17,425) — Aug. 31, 2007 50,237 Disposed
March 19, 2004 BGMS Series E Convertible Preferred Stock Common (170,045) — — 935,251 Disposed
March 19, 2004 BGMS Series D Convertible Preferred Stock Common (240,352) — — 1,321,942 Disposed
March 19, 2004 BGMS Series C Convertible Preferred Stock Common (203,502) — — 1,119,265 Disposed
March 19, 2004 BGMS Series B Convertible Preferred Stock Common (371,900) — — 2,045,454 Disposed
March 19, 2004 BGMS Series A Convertible Preferred Stock Common (143,539) — — 789,469 Disposed

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

Initial ownership (Form 3) 68 holdings

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

Date Ticker Security Shares Ownership
Oct. 24, 2022 PRME Series A Convertible Preferred Stock→ Common Stock (16,080) 16,080 Indirect
Oct. 19, 2022 PRME Series A Convertible Preferred Stock→ Common Stock (5,361,122) 5,361,122 Indirect
Oct. 19, 2022 PRME Series A Convertible Preferred Stock→ Common Stock (5,361,122) 5,361,122 Indirect
Oct. 19, 2022 PRME Series B Convertible Preferred Stock→ Common Stock (367,175) 367,175 Indirect
Oct. 19, 2022 PRME Series B Convertible Preferred Stock→ Common Stock (367,175) 367,175 Indirect
June 16, 2021 LYEL Series A Convertible Preferred Stock→ Common Stock (17,771,216) 17,771,216 Indirect
June 16, 2021 LYEL Series A Convertible Preferred Stock→ Common Stock (17,771,216) 17,771,216 Indirect
June 16, 2021 LYEL Series C Convertible Preferred Stock→ Common Stock (435,142) 435,142 Indirect
June 16, 2021 LYEL Series C Convertible Preferred Stock→ Common Stock (435,142) 435,142 Indirect
Feb. 3, 2021 SANA Common Stock 147,500 Indirect
Feb. 3, 2021 SANA Common Stock 145,000 Indirect
Feb. 3, 2021 SANA Series A-1 Convertible Preferred Stock→ Common Stock (3,687,500) 3,687,500 Indirect
Feb. 3, 2021 SANA Series A-1 Convertible Preferred Stock→ Common Stock (3,687,500) 3,687,500 Indirect
Feb. 3, 2021 SANA Series A-2 Convertible Preferred Stock→ Common Stock (5,687,500) 5,687,500 Indirect
Feb. 3, 2021 SANA Series A-2 Convertible Preferred Stock→ Common Stock (9,375,000) 9,375,000 Indirect
Feb. 3, 2021 SANA Series A-2 Convertible Preferred Stock→ Common Stock (9,375,000) 9,375,000 Indirect
Feb. 3, 2021 SANA Series A-2 Convertible Preferred Stock→ Common Stock (5,687,500) 5,687,500 Indirect
Feb. 3, 2021 SANA Series B Convertible Preferred Stock→ Common Stock (781,250) 781,250 Indirect
Feb. 3, 2021 SANA Series B Convertible Preferred Stock→ Common Stock (781,250) 781,250 Indirect
Feb. 3, 2021 SANA Series B Convertible Preferred Stock→ Common Stock (2,343,750) 2,343,750 Indirect
Feb. 3, 2021 SANA Series B Convertible Preferred Stock→ Common Stock (2,343,750) 2,343,750 Indirect
Feb. 5, 2020 BEAM Series A-1 Preferred Stock→ Common Stock (1,338,000) 1,338,000 Indirect
Feb. 5, 2020 BEAM Series A-1 Preferred Stock→ Common Stock (1,338,000) 1,338,000 Indirect
Feb. 5, 2020 BEAM Series A-2 Preferred Stock→ Common Stock (2,750,336) 2,750,336 Indirect
Feb. 5, 2020 BEAM Series A-2 Preferred Stock→ Common Stock (2,750,335) 2,750,335 Indirect
Feb. 5, 2020 BEAM Series B Preferred Stock→ Common Stock (33,184) 33,184 Indirect
Feb. 5, 2020 BEAM Series B Preferred Stock→ Common Stock (33,184) 33,184 Indirect
Oct. 10, 2019 VIR Common Stock 444,444 Indirect
Oct. 10, 2019 VIR Series A-1 Convertible Preferred Stock→ Common Stock (11,111,110) 11,111,110 Indirect
Oct. 10, 2019 VIR Series A-1 Convertible Preferred Stock→ Common Stock (13,333,332) 13,333,332 Indirect
Oct. 10, 2019 VIR Series B Convertible Preferred Stock→ Common Stock (555,555) 555,555 Indirect
Oct. 10, 2019 VIR Series B Convertible Preferred Stock→ Common Stock (2,222,222) 2,222,222 Indirect
Dec. 7, 2017 DNLI Common Stock 312,500 Indirect
Dec. 7, 2017 DNLI Series A-1 Preferred Stock→ Common Stock (10,068,749) 10,068,749 Indirect
Dec. 7, 2017 DNLI Series A-2 Preferred Stock→ Common Stock (375,000) 375,000 Indirect
Dec. 7, 2017 DNLI Series B-1 Preferred Stock→ Common Stock (312,500) 312,500 Indirect
Sept. 30, 2013 FATE Series A Convertible Preferred Stock→ Common Stock (675,493) 675,493 Indirect
Sept. 30, 2013 FATE Series B Convertible Preferred Stock→ Common Stock (265,252) 265,252 Indirect
Sept. 30, 2013 FATE Series C Convertible Preferred Stock→ Common Stock (570,663) 570,663 Indirect
July 23, 2013 AGIO Series A Convertible Preferred Stock→ Common Stock (3,636,362) 3,636,362 Indirect
July 23, 2013 AGIO Series C-2 Convertible Preferred Stock→ Common Stock (224,374) 224,374 Indirect
June 1, 2004 ALNY Common Stock 222,500 Indirect
June 1, 2004 ALNY Series B Convertible Preferred Stock→ Common Stock — Indirect
June 1, 2004 ALNY Series C Convertible Preferred Stock→ Common Stock — Indirect
March 16, 2004 BGMS Series A Convertible Preferred Stock→ Common Stock — Indirect
March 16, 2004 BGMS Series B Convertible Preferred Stock→ Common Stock — Indirect
March 16, 2004 BGMS Series C Convertible Preferred Stock→ Common Stock — Indirect
March 16, 2004 BGMS Series D Convertible Preferred Stock→ Common Stock — Indirect
March 16, 2004 BGMS Series E Convertible Preferred Stock→ Common Stock — Indirect
March 16, 2004 BGMS Series F Convertible Preferred Stock→ Common Stock — Indirect