Insider at

04

Insider transactions

05
1 buys (P) 0 sells (S) Net: $4,999,999 + 48 non-open-market transactions below Avg return of open purchases vs now: -22.9% 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

48 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Feb. 2, 2026 ALXO P 3,184,713 $1.57 $4,999,999 8,453,038 Indirect +60.45% Acquired -22.9% (price as of 2026-10-05)
July 21, 2020 ALXO P 850,000 $19.00 $16,150,000 850,000 Indirect · Acquired -93.6% (price as of 2026-10-05)

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Jan. 20, 2026 ALXO Stock Option (right to buy) Common Stock (40,400) $1.32 Jan. 19, 2036 40,400 Acquired
Jan. 21, 2025 ALXO Stock Option (right to buy) Common Stock (40,400) $1.65 Jan. 20, 2035 40,400 Acquired
June 13, 2024 ALXO Stock Option (right to buy) Common Stock (20,200) $8.44 June 12, 2034 20,200 Acquired
June 20, 2023 ALXO Stock Option (right to buy) Common Stock (20,200) $8.14 June 19, 2033 20,200 Acquired
June 15, 2022 ALXO Stock Option (right to buy) Common Stock (12,004) $6.67 June 14, 2032 12,004 Acquired
June 11, 2021 ALXO Stock Option (right to buy) Common Stock (12,004) $59.66 June 10, 2031 12,004 Acquired
July 21, 2020 ALXO Series C Convertible Stock Common Stock (52,647) · · 52,647 Disposed
July 21, 2020 ALXO Series B Convertible Stock Common Stock (15,794) · · 15,794 Disposed
July 21, 2020 ALXO Series A Convertible Stock Common Stock (78,175) · · 78,175 Disposed
July 21, 2020 ALXO Series C Convertible Stock Common Stock (1,052,950) · · 1,052,950 Disposed
July 21, 2020 ALXO Series B Convertible Stock Common Stock (490,411) · · 490,411 Disposed
July 21, 2020 ALXO Series A Convertible Stock Common Stock (2,398,588) · · 2,398,588 Disposed
July 21, 2020 ALXO Series A Convertible Stock Common Stock (3,100,020) · · 3,100,020 Disposed
July 16, 2020 ALXO Stock Option (right to buy) Common Stock (24,009) $19.00 July 16, 2030 24,009 Acquired
April 30, 2009 PFE Phantom Stock Units SSP Common Stock (102) · · 102 Acquired
April 15, 2009 PFE Phantom Stock Units SSP Common Stock (101) · · 101 Acquired
March 31, 2009 PFE Phantom Stock Units SSP Common Stock (108) · · 108 Acquired
March 13, 2009 PFE Phantom Stock Units SSP Common Stock (1,453) · · 1,453 Acquired
Feb. 26, 2009 PFE Stock Appreciation Rights Common Stock (93,284) $12.70 Feb. 26, 2014 93,284 Acquired
Dec. 31, 2008 PFE Phantom Stock Units SSP Common Stock (78) · · 78 Acquired
Dec. 15, 2008 PFE Phantom Stock Units SSP Common Stock (83) · · 83 Acquired
Nov. 26, 2008 PFE Phantom Stock Units SSP Common Stock (87) · · 87 Acquired
Nov. 14, 2008 PFE Phantom Stock Units SSP Common Stock (109) · · 109 Acquired
Oct. 31, 2008 PFE Phantom Stock Units SSP Common Stock (78) · · 78 Acquired
Oct. 15, 2008 PFE Phantom Stock Units SSP Common Stock (85) · · 85 Acquired
Sept. 30, 2008 PFE Phantom Stock Units SSP Common Stock (76) · · 76 Acquired
Sept. 15, 2008 PFE Phantom Stock Units SSP Common Stock (76) · · 76 Acquired
Aug. 29, 2008 PFE Phantom Stock Units SSP Common Stock (73) · · 73 Acquired
Aug. 15, 2008 PFE Phantom Stock Units SSP Common Stock (81) · · 81 Acquired
July 31, 2008 PFE Phantom Stock Units SSP Common Stock (74) · · 74 Acquired
July 15, 2008 PFE Phantom Stock Units SSP Common Stock (79) · · 79 Acquired
June 30, 2008 PFE Phantom Stock Units SSP Common Stock (79) · · 79 Acquired
June 13, 2008 PFE Phantom Stock Units SSP Common Stock (77) · · 77 Acquired
May 30, 2008 PFE Phantom Stock Units SSP Common Stock (72) · · 72 Acquired
May 15, 2008 PFE Phantom Stock Units SSP Common Stock (74) · · 74 Acquired
April 30, 2008 PFE Phantom Stock Units SSP Common Stock (69) · · 69 Acquired
April 15, 2008 PFE Phantom Stock Units SSP Common Stock (67) · · 67 Acquired
March 31, 2008 PFE Phantom Stock Units SSP Common Stock (65) · · 65 Acquired
March 14, 2008 PFE Phantom Stock Units SSP Common Stock (65) · · 65 Acquired
Feb. 28, 2008 PFE Stock Appreciation Rights Common Stock (97,691) $22.55 Feb. 28, 2013 97,691 Acquired
Oct. 31, 2007 PFE Employee Stock Option (right to buy) Common Stock (80,000) $24.61 Oct. 30, 2017 80,000 Acquired

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

Initial ownership (Form 3) 10 holdings

07

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

DateTickerSecuritySharesOwnership
July 16, 2020 ALXO Common Stock 151 Indirect
July 16, 2020 ALXO Common Stock 461,811 Indirect
July 16, 2020 ALXO Series A Convertible Preferred Stock→ Common Stock (3,100,020) 3,100,020 Indirect
July 16, 2020 ALXO Series A Convertible Preferred Stock→ Common Stock (2,398,588) 2,398,588 Indirect
July 16, 2020 ALXO Series A Convertible Preferred Stock→ Common Stock (78,175) 78,175 Indirect
July 16, 2020 ALXO Series B Convertible Preferred Stock→ Common Stock (490,411) 490,411 Indirect
July 16, 2020 ALXO Series B Convertible Preferred Stock→ Common Stock (15,794) 15,794 Indirect
July 16, 2020 ALXO Series C Convertible Preferred Stock→ Common Stock (1,052,950) 1,052,950 Indirect
July 16, 2020 ALXO Series C Convertible Preferred Stock→ Common Stock (52,647) 52,647 Indirect
Oct. 12, 2007 PFE Common Stock 0 Direct