Assembly Biosciences Insider Trading Activity | NASDAQ:ASMB | Benzinga

Assembly Biosciences Inc Insider Trading Activity

ASMBNASDAQ

Trade with Public

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$28.23

-0.35-1.22%

At close: Mar 24, 5:00 PM EST

$28.23

N/A

After Hours: 4:00 PM EST

Earnings: Q4 2025 Earnings were released on Thu Mar 19th, after the market close

Overview News Earnings Options Analyst RatingsInsider TradesShort Interest Stock Report


Oct 03, 2025	GILEAD SCIENCES INC	10% OWNER	2.30M	$0.00	$0.00	BUY	103.91%	4.51M	Aug 08	View
Apr 15, 2025	John McHutchison	—	-757.00	$9.85	-$7.46K	SELL	-3.96%	18.35K	Mar 31	View
Apr 01, 2025	Jeanette Bjorkquist	PRINCIPAL ACCOUNTING OFFICER	1.48K	$9.85	-$1.77K	GRANT	46.94%	4.62K	Mar 29 - Mar 31	View
Apr 01, 2025	Jason Okazaki	CEO AND PRESIDENT	-355.00	$9.85	-$3.50K	SELL	-2.35%	14.76K	Mar 31	View
Apr 01, 2025	Nicole White	CHIEF MANUFACTURING OFFICER	-197.00	$9.85	-$1.94K	SELL	-1.66%	11.67K	Mar 31	View
Dec 31, 2024	Michael Houghton	—	3.20K	$15.61	$50.00K	BUY	∞	3.20K	Dec 30	View
Dec 23, 2024	GILEAD SCIENCES INC	10% OWNER	940.50K	$21.37	$20.10M	BUY	74.12%	2.21M	Dec 19	View
Nov 26, 2024	Alexander Schornstein	10% OWNER	25.00K	$14.88	$371.99K	BUY	3.56%	728.11K	Nov 22 - Nov 25	View
Nov 19, 2024	Nicole White	CHIEF MANUFACTURING OFFICER	-40.00	$16.29	-$651.60	SELL	-0.34%	11.87K	Nov 18	View
Oct 09, 2024	Alexander Schornstein	10% OWNER	10.00K	$14.58	$145.80K	BUY	1.44%	703.11K	Oct 08	View
Oct 04, 2024	Nicole White	CHIEF MANUFACTURING OFFICER	-157.00	$14.81	-$2.33K	SELL	-1.30%	11.91K	Oct 03	View
Oct 04, 2024	Jason Okazaki	CEO AND PRESIDENT	-197.00	$14.81	-$2.92K	SELL	-1.30%	14.90K	Oct 03	View
Aug 05, 2024	Nicole White	CHIEF MANUFACTURING OFFICER	-785.00	$14.23	-$11.17K	SELL	-6.11%	12.07K	Aug 02	View
Aug 05, 2024	Jason Okazaki	CEO AND PRESIDENT	-981.00	$14.23	-$13.96K	SELL	-6.10%	15.10K	Aug 02	View
Jul 08, 2024	Alexander Schornstein	10% OWNER	9.00K	$12.40	$111.63K	BUY	1.32%	693.11K	Jul 03 - Jul 05	View
Jun 20, 2024	GILEAD SCIENCES INC	10% OWNER	179.50K	$0.00	$0.00	BUY	16.48%	1.27M	Jun 17	View
May 24, 2024	Jeanette Bjorkquist	PRINCIPAL ACCOUNTING OFFICER	-24.00	$14.93	-$358.41	SELL	-0.76%	3.14K	May 23	View
May 24, 2024	John McHutchison	—	-2.12K	$14.93	-$31.61K	SELL	-9.98%	19.10K	May 23	View
May 24, 2024	Nicole White	CHIEF MANUFACTURING OFFICER	-172.00	$14.93	-$2.57K	SELL	-1.32%	12.85K	May 23	View
May 24, 2024	Jason Okazaki	CEO AND PRESIDENT	-549.00	$14.93	-$8.20K	SELL	-3.30%	16.08K	May 23	View
May 01, 2024	Nicole White	CHIEF MANUFACTURING OFFICER	2.08K	$12.71	-$15.95K	GRANT	18.98%	13.03K	Apr 29 - Apr 30	View
May 01, 2024	Jason Okazaki	CEO AND PRESIDENT	2.60K	$12.71	-$19.94K	GRANT	18.78%	16.42K	Apr 29 - Apr 30	View
Apr 02, 2024	John McHutchison	—	-1.21K	$13.07	-$15.76K	SELL	-5.38%	21.22K	Apr 01	View
Apr 02, 2024	Jeanette Bjorkquist	PRINCIPAL ACCOUNTING OFFICER	736.00	$13.07	-$1.49K	GRANT	30.29%	3.17K	Mar 29 - Apr 01	View
Apr 02, 2024	Nicole White	CHIEF MANUFACTURING OFFICER	-197.00	$13.07	-$2.58K	SELL	-1.77%	10.95K	Apr 01	View
Apr 02, 2024	Jason Okazaki	CEO AND PRESIDENT	-354.00	$13.07	-$4.63K	SELL	-2.50%	13.83K	Apr 01	View
Mar 29, 2024	Jason Okazaki	CEO AND PRESIDENT	-392.00	$12.87	-$5.05K	SELL	-2.69%	14.18K	Mar 27	View
Jan 19, 2024	Alexander Schornstein	10% OWNER	645.08K	$0.79	$511.26K	BUY	8.53%	8.21M	Jan 17 - Jan 18	View
Nov 22, 2023	Alexander Schornstein	10% OWNER	400.00K	$0.71	$282.10K	BUY	5.58%	7.56M	Nov 20 - Nov 21	View
Nov 21, 2023	Nicole White	CHIEF MANUFACTURING OFFICER	-477.00	$0.69	-$328.65	SELL	-0.51%	93.77K	Nov 17	View
Oct 04, 2023	Nicole White	CHIEF MANUFACTURING OFFICER	8.11K	$0.80	-$1.50K	GRANT	9.41%	94.25K	Oct 02 - Oct 03	View
Oct 04, 2023	William Delaney IV	CHIEF SCIENTIFIC OFFICER	8.11K	$0.80	-$1.50K	GRANT	5.68%	150.85K	Oct 02 - Oct 03	View
Oct 04, 2023	Jason Okazaki	CEO AND PRESIDENT	10.14K	$0.80	-$1.88K	GRANT	6.15%	174.92K	Oct 02 - Oct 03	View
Aug 03, 2023	William Delaney IV	CHIEF SCIENTIFIC OFFICER	-9.46K	$1.09	-$10.29K	SELL	-6.22%	142.74K	Aug 02	View
Aug 03, 2023	Jason Okazaki	CEO AND PRESIDENT	-11.83K	$1.09	-$12.87K	SELL	-6.70%	164.79K	Aug 02	View
Jul 25, 2023	Jeanette Bjorkquist	PRINCIPAL ACCOUNTING OFFICER	-844.00	$1.07	-$900.38	SELL	-3.07%	26.69K	Jul 24	View
May 31, 2023	William Delaney IV	CHIEF SCIENTIFIC OFFICER	-4.23K	$0.96	-$4.05K	SELL	-3.63%	112.20K	May 30	View
May 24, 2023	John McHutchison	DIRECTOR	91.53K	$1.04	-$27.02K	GRANT	117.90%	169.16K	May 22 - May 23	View
May 24, 2023	Jeanette Bjorkquist	PRINCIPAL ACCOUNTING OFFICER	1.23K	$1.04	-$285.04	GRANT	4.66%	27.53K	May 22 - May 23	View
May 24, 2023	William Delaney IV	CHIEF SCIENTIFIC OFFICER	28.44K	$1.04	-$6.83K	GRANT	32.32%	116.44K	May 22 - May 23	View
May 24, 2023	Jason Okazaki	CEO AND PRESIDENT	28.44K	$1.04	-$6.83K	GRANT	28.97%	126.61K	May 22 - May 23	View
Mar 31, 2023	John McHutchison	DIRECTOR	-14.88K	$0.82	-$12.25K	SELL	-7.73%	177.63K	Mar 30	View
Mar 31, 2023	Jeanette Bjorkquist	PRINCIPAL ACCOUNTING OFFICER	5.48K	$0.82	-$637.16	GRANT	29.87%	23.81K	Mar 29 - Mar 30	View
Mar 31, 2023	William Delaney IV	CHIEF SCIENTIFIC OFFICER	-3.42K	$0.82	-$2.82K	SELL	-3.85%	85.50K	Mar 30	View
Mar 31, 2023	Jason Okazaki	CEO AND PRESIDENT	-4.25K	$0.82	-$3.50K	SELL	-4.15%	98.17K	Mar 30	View
Mar 28, 2023	Jason Okazaki	CEO AND PRESIDENT	-4.69K	$1.02	-$4.78K	SELL	-4.38%	102.42K	Mar 27	View
Aug 10, 2022	John McHutchison	CHIEF EXECUTIVE OFFICER	-12.31K	$2.13	-$26.20K	SELL	-6.01%	192.51K	Aug 08	View
Jul 26, 2022	Michael Samar	CHIEF FINANCIAL OFFICER	-2.02K	$2.22	-$4.48K	SELL	-2.55%	77.23K	Jul 25	View
Jun 02, 2022	William Delaney IV	CHIEF SCIENTIFIC OFFICER	-4.16K	$1.92	-$8.00K	SELL	-5.17%	76.42K	May 31	View
Mar 31, 2022	Michael Samar	CHIEF FINANCIAL OFFICER	23.96K	$2.17	-$4.95K	GRANT	45.40%	76.75K	Mar 29 - Mar 30	View
Mar 31, 2022	Luisa Stamm	CHIEF MEDICAL OFFICER	21.46K	$2.17	-$2.25K	GRANT	113.84%	40.31K	Mar 29 - Mar 30	View
Mar 31, 2022	William Delaney IV	CHIEF SCIENTIFIC OFFICER	23.96K	$2.17	-$2.25K	GRANT	44.27%	78.08K	Mar 29 - Mar 30	View
Mar 31, 2022	Jason Okazaki	CHIEF OPERATING OFFICER	29.98K	$2.17	-$2.75K	GRANT	46.39%	94.61K	Mar 29 - Mar 30	View
Mar 31, 2022	John McHutchison	CEO AND PRESIDENT	79.14K	$2.17	-$10.00K	GRANT	62.96%	204.83K	Mar 29 - Mar 30	View
Mar 29, 2022	Jason Okazaki	CHIEF OPERATING OFFICER	-4.62K	$2.24	-$10.36K	SELL	-6.67%	64.63K	Mar 28	View
Aug 10, 2021	John McHutchison	CEO AND PRESIDENT	-12.16K	$3.60	-$43.78K	SELL	-8.82%	125.69K	Aug 09	View
Jun 01, 2021	William Delaney IV	CHIEF SCIENTIFIC OFFICER	-4.13K	$4.03	-$16.64K	SELL	-7.21%	53.12K	May 27	View
Dec 15, 2020	Sybil Jacqueline Papkoff	—	-1.30K	$6.15	-$7.98K	SELL	-3.35%	37.36K	Dec 14	View
Nov 10, 2020	Luisa Stamm	—	-4.40K	$5.10	-$22.40K	SELL	-36.64%	7.60K	Nov 09	View
Aug 10, 2020	John McHutchison	—	-12.15K	$21.80	-$264.92K	SELL	-8.10%	137.85K	Aug 07	View
Mar 31, 2020	Sybil Jacqueline Papkoff	—	15.75K	$14.22	-$17.83K	GRANT OR AWARD	68.71%	38.66K	Mar 27 - Mar 30	View
Mar 31, 2020	James Richard Colonno	—	9.19K	$15.04	-$117.52K	GRANT OR AWARD	7.19%	137.01K	Mar 27 - Mar 31	View
Dec 16, 2019	Sybil Jacqueline Papkoff	SVP-CSO MICROBIOME	-1.46K	$21.00	-$30.66K	SELL	-5.99%	22.91K	Dec 13	View
Dec 16, 2019	James Richard Colonno	EVP & CSO, VIROLOGY OPS	0.00	$16.02	-$594.16K	SELL-OPTIONS	0.00%	127.82K	Dec 12	View
Sep 07, 2018	Uri Lopatin	CHIEF MED. OFF., VP RES. DEV.	-15.54K	$40.09	-$622.99K	SELL	-2.45%	618.61K	Sep 05 - Sep 06	View
Jul 20, 2018	Derek Small	CEO AND PRESIDENT	2.40K	$41.48	$99.55K	BUY	0.36%	669.29K	Jul 19	View
Jul 03, 2018	WILLIAM RINGO	DIRECTOR	0.00	$22.85	-$31.30K	SELL-OPTIONS	0.00%	19.46K	Jul 02	View
Jun 01, 2018	WILLIAM RINGO	DIRECTOR	0.00	$24.84	-$35.27K	SELL-OPTIONS	0.00%	19.46K	Jun 01	View
May 02, 2018	WILLIAM RINGO	DIRECTOR	0.00	$25.13	-$35.86K	SELL-OPTIONS	0.00%	19.46K	May 01	View
Apr 02, 2018	WILLIAM RINGO	DIRECTOR	0.00	$28.26	-$42.12K	SELL-OPTIONS	0.00%	19.46K	Apr 02	View
Mar 02, 2018	WILLIAM RINGO	DIRECTOR	0.00	$31.79	-$49.17K	SELL-OPTIONS	0.00%	19.46K	Mar 01	View
Feb 02, 2018	WILLIAM RINGO	DIRECTOR	0.00	$27.03	-$39.66K	SELL-OPTIONS	0.00%	19.46K	Feb 01	View
Jan 03, 2018	WILLIAM RINGO	DIRECTOR	0.00	$26.12	-$37.84K	SELL-OPTIONS	0.00%	19.46K	Jan 02	View
Dec 04, 2017	WILLIAM RINGO	DIRECTOR	0.00	$28.29	-$42.17K	SELL-OPTIONS	0.00%	19.46K	Dec 01	View
Nov 03, 2017	WILLIAM RINGO	DIRECTOR	0.00	$18.38	-$22.35K	SELL-OPTIONS	0.00%	19.46K	Nov 01	View
Oct 17, 2017	WILLIAM RINGO	DIRECTOR	-1.00K	$20.45	-$26.50K	SELL	-4.89%	19.46K	Jun 23 - Oct 16	View
May 16, 2017	WILLIAM RINGO	DIRECTOR	-3.46K	$22.00	-$76.14K	SELL	-14.47%	20.46K	May 12	View
Feb 12, 2016	Derek A Small	CEO AND PRESIDENT	10.00K	$5.53	$55.28K	BUY	1.60%	634.39K	Feb 10 - Feb 11	View