ASSEMBLY BIOSCIENCES, INC.

ASMB
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001426800

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateInsiderTransactionSharesAvg priceValueShares afterHolding changeFiling
Jun 18, 2026Jun 17, 2026Bjorkquist Jeanette MPFO and PAOSSaleCommon Stock−29$23.25−$674.2514.56K−0.2%SEC
Mar 31, 2026Mar 30, 2026Bjorkquist Jeanette MPFO and PAOSSaleCommon Stock−328$26.691−$8.75K11.09K−2.9%SEC
Mar 31, 2026Mar 30, 2026White Nicole SChief Manufacturing OfficerSSaleCommon Stock−197$26.6884−$5.26K37.48K−0.5%SEC
Oct 3, 2025Aug 8, 2025GILEAD SCIENCES, INC.10% OwnerPPurchaseCommon Stock+2.3M––4.51M+103.9%SEC
Oct 3, 2025Aug 8, 2025GILEAD SCIENCES, INC.10% OwnerPPurchaseCommon Stock · Derivative+2.3M––1.15M–SEC
Apr 15, 2025Mar 31, 2025McHutchison John GDirectorSSaleCommon Stock−757$9.85−$7.46K18.35K−4.0%SEC
Apr 1, 2025Mar 31, 2025Bjorkquist Jeanette MPrincipal Accounting OfficerSSaleCommon Stock−180$9.85−$1.77K4.62K−3.8%SEC
Apr 1, 2025Mar 31, 2025Okazaki Jason ACEO and PresidentSSaleCommon Stock−355$9.85−$3.5K14.76K−2.3%SEC
Apr 1, 2025Mar 31, 2025White Nicole SChief Manufacturing OfficerSSaleCommon Stock−197$9.85−$1.94K11.67K−1.7%SEC
Dec 31, 2024Dec 30, 2024Houghton MichaelDirectorPPurchaseCommon Stock+3.2K$15.61+$49.98K3.2KNew positionSEC
Dec 23, 2024Dec 19, 2024GILEAD SCIENCES, INC.10% OwnerPPurchaseCommon Stock+940.5K$21.37+$20.1M2.21M+74.1%SEC
Nov 26, 2024Nov 22 – Nov 25, 2024Schornstein Alexander10% OwnerPPurchaseCommon Stock+25K$14.8815+$372.04K728.11K+3.6%SEC
Nov 19, 2024Nov 18, 2024White Nicole SChief Manufacturing OfficerSSaleCommon Stock−40$16.29−$651.611.87K−0.3%SEC
Oct 9, 2024Oct 8, 2024Schornstein Alexander10% OwnerPPurchaseCommon Stock+10K$14.58+$145.8K703.11K+1.4%SEC
Oct 4, 2024Oct 3, 2024White Nicole SChief Manufacturing OfficerSSaleCommon Stock−157$14.81−$2.33K11.91K−1.3%SEC
Oct 4, 2024Oct 3, 2024Okazaki Jason ACEO and PresidentSSaleCommon Stock−197$14.81−$2.92K14.9K−1.3%SEC
Aug 5, 2024Aug 2, 2024White Nicole SChief Manufacturing OfficerSSaleCommon Stock−785$14.23−$11.17K12.07K−6.1%SEC
Aug 5, 2024Aug 2, 2024Okazaki Jason ACEO and PresidentSSaleCommon Stock−981$14.23−$13.96K15.1K−6.1%SEC
Jul 8, 2024Jul 3 – Jul 5, 2024Schornstein Alexander10% OwnerPPurchaseCommon Stock+9K$12.4034+$111.63K693.11K+1.3%SEC
Jun 20, 2024Jun 17, 2024GILEAD SCIENCES, INC.10% OwnerPPurchaseCommon Stock+179.5K––1.27M+16.5%SEC
Jun 20, 2024Jun 17, 2024GILEAD SCIENCES, INC.10% OwnerPPurchaseCommon Stock · Derivative+179.5K––179.5K–SEC
May 24, 2024May 23, 2024Bjorkquist Jeanette MPrincipal Accounting OfficerSSaleCommon Stock−24$14.93−$358.323.14K−0.8%SEC
May 24, 2024May 23, 2024McHutchison John GDirectorSSaleCommon Stock−2.12K$14.93−$31.61K19.1K−10.0%SEC
May 24, 2024May 23, 2024Okazaki Jason ACEO and PresidentSSaleCommon Stock−549$14.93−$8.2K16.08K−3.3%SEC
May 24, 2024May 23, 2024White Nicole SChief Manufacturing OfficerSSaleCommon Stock−172$14.93−$2.57K12.85K−1.3%SEC
May 1, 2024Apr 30, 2024White Nicole SChief Manufacturing OfficerSSaleCommon Stock−1.26K$12.71−$15.95K13.03K−8.8%SEC
May 1, 2024Apr 30, 2024Okazaki Jason ACEO and PresidentSSaleCommon Stock−1.57K$12.71−$19.94K16.42K−8.7%SEC
Apr 2, 2024Apr 1, 2024McHutchison John GDirectorSSaleCommon Stock−1.21K$13.07−$15.76K21.22K−5.4%SEC
Apr 2, 2024Apr 1, 2024Bjorkquist Jeanette MPrincipal Accounting OfficerSSaleCommon Stock−114$13.07−$1.49K3.17K−3.5%SEC
Apr 2, 2024Apr 1, 2024White Nicole SChief Manufacturing OfficerSSaleCommon Stock−197$13.07−$2.57K10.95K−1.8%SEC
Apr 2, 2024Apr 1, 2024Okazaki Jason ACEO and PresidentSSaleCommon Stock−354$13.07−$4.63K13.83K−2.5%SEC
Mar 29, 2024Mar 27, 2024Okazaki Jason ACEO and PresidentSSaleCommon Stock−392$12.87−$5.05K14.18K−2.7%SEC
Jan 19, 2024Jan 17 – Jan 18, 2024Schornstein Alexander10% OwnerPPurchaseCommon Stock+645.08K$0.7907+$510.06K8.21M+8.5%SEC
Nov 22, 2023Nov 20 – Nov 21, 2023Schornstein Alexander10% OwnerPPurchaseCommon Stock+400K$0.7075+$283K7.56M+5.6%SEC
Nov 21, 2023Nov 17, 2023White Nicole SChief Manufacturing OfficerSSaleCommon Stock−477$0.69−$329.1393.77K−0.5%SEC
Oct 4, 2023Oct 3, 2023White Nicole SChief Manufacturing OfficerSSaleCommon Stock−1.89K$0.80−$1.51K94.25K−2.0%SEC
Oct 4, 2023Oct 3, 2023Delaney William E IVChief Scientific OfficerSSaleCommon Stock−1.89K$0.80−$1.51K150.85K−1.2%SEC
Oct 4, 2023Oct 3, 2023Okazaki Jason ACEO and PresidentSSaleCommon Stock−2.36K$0.80−$1.89K174.92K−1.3%SEC
Aug 3, 2023Aug 2, 2023Delaney William E IVChief Scientific OfficerSSaleCommon Stock−9.46K$1.09−$10.31K142.74K−6.2%SEC
Aug 3, 2023Aug 2, 2023Okazaki Jason ACEO and PresidentSSaleCommon Stock−11.83K$1.09−$12.89K164.79K−6.7%SEC
Jul 25, 2023Jul 24, 2023Bjorkquist Jeanette MPrincipal Accounting OfficerSSaleCommon Stock−844$1.07−$903.0826.69K−3.1%SEC
May 31, 2023May 30, 2023Delaney William E IVChief Scientific OfficerSSaleCommon Stock−4.23K$0.96−$4.06K112.21K−3.6%SEC
May 24, 2023May 23, 2023McHutchison John GDirectorSSaleCommon Stock−25.97K$1.04−$27.01K169.16K−13.3%SEC
May 24, 2023May 23, 2023Bjorkquist Jeanette MPrincipal Accounting OfficerSSaleCommon Stock−274$1.04−$284.9627.53K−1.0%SEC
May 24, 2023May 23, 2023Delaney William E IVChief Scientific OfficerSSaleCommon Stock−6.56K$1.04−$6.82K116.44K−5.3%SEC
May 24, 2023May 23, 2023Okazaki Jason ACEO and PresidentSSaleCommon Stock−6.56K$1.04−$6.82K126.61K−4.9%SEC
Mar 31, 2023Mar 30, 2023McHutchison John GDirectorSSaleCommon Stock−14.88K$0.82−$12.2K177.63K−7.7%SEC
Mar 31, 2023Mar 30, 2023Bjorkquist Jeanette MPrincipal Accounting OfficerSSaleCommon Stock−774$0.82−$634.6823.81K−3.1%SEC
Mar 31, 2023Mar 30, 2023Delaney William E IVChief Scientific OfficerSSaleCommon Stock−3.42K$0.82−$2.81K85.5K−3.8%SEC
Mar 31, 2023Mar 30, 2023Okazaki Jason ACEO and PresidentSSaleCommon Stock−4.25K$0.82−$3.48K98.17K−4.1%SEC