ASMB Insider Trading

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Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 5.10%

Insider Buying (Last 12 Months): $307,413.96

Insider Selling (Last 12 Months): $87,218.83

Assembly Biosciences Insider Trading History Chart

Assembly Biosciences Share Price & Price History

^$9.31

▼ -0.16 (-1.69%)

As of 04/3/2025 05:00 PM ET

Days: 30 | 90 | 365

Assembly Biosciences Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
3/31/2025	Jason A Okazaki	CEO	Sell	355	$9.85	$3,496.75	14,757
3/31/2025	Jeanette M Bjorkquist	Insider	Sell	180	$9.85	$1,773.00	4,617
12/30/2024	Michael Houghton	Director	Buy	3,202	$15.61	$49,983.22	3,202
11/18/2024	Nicole S White	Insider	Sell	40	$16.29	$651.60	11,871
10/8/2024	Alexander Schornstein	Major Shareholder	Buy	10,000	$14.58	$145,800.00	703,113
10/3/2024	Jason A Okazaki	CEO	Sell	197	$14.81	$2,917.57	14,904
10/3/2024	Nicole S White	Insider	Sell	157	$14.81	$2,325.17	11,911
7/5/2024	Alexander Schornstein	Major Shareholder	Buy	4,438	$12.52	$55,563.76	693,113
7/3/2024	Alexander Schornstein	Major Shareholder	Buy	4,562	$12.29	$56,066.98	688,675
5/23/2024	Jason A Okazaki	CEO	Sell	549	$14.93	$8,196.57	16,082
5/23/2024	Jeanette M Bjorkquist	Insider	Sell	24	$14.93	$358.32	3,142
5/23/2024	John G. McHutchison	Director	Sell	2,117	$14.93	$31,606.81	19,104
4/30/2024	Jason A Okazaki	CEO	Sell	1,569	$12.71	$19,941.99	16,423
4/30/2024	Nicole S White	Insider	Sell	1,255	$12.71	$15,951.05	13,025
4/1/2024	Jason A Okazaki	CEO	Sell	354	$13.07	$4,626.78	13,826
4/1/2024	Jeanette M Bjorkquist	Insider	Sell	114	$13.07	$1,489.98	3,166
4/1/2024	John G. McHutchison	Director	Sell	1,206	$13.07	$15,762.42	21,221
3/27/2024	Jason A Okazaki	CEO	Sell	392	$12.87	$5,045.04	14,180
1/17/2024	Alexander Schornstein	Major Shareholder	Buy	24,999	$9.36	$233,990.64	655,357
10/3/2023	Jason A Okazaki	CEO	Sell	196	$9.60	$1,881.60	14,576
10/3/2023	Nicole S White	Insider	Sell	157	$9.60	$1,507.20	7,854
7/24/2023	Jeanette M Bjorkquist	Insider	Sell	70	$12.84	$898.80	2,224
5/23/2023	Jason A Okazaki	CEO	Sell	546	$12.48	$6,814.08	10,551
5/23/2023	Jeanette M Bjorkquist	Insider	Sell	22	$12.48	$274.56	2,294
5/23/2023	John G. McHutchison	Director	Sell	2,164	$12.48	$27,006.72	14,096
3/30/2023	Jason A Okazaki	CEO	Sell	353	$9.84	$3,473.52	8,181
3/30/2023	Jeanette M Bjorkquist	Insider	Sell	64	$9.84	$629.76	1,983
3/30/2023	John G. McHutchison	Director	Sell	1,240	$9.84	$12,201.60	14,802
3/27/2023	Jason A Okazaki	CEO	Sell	391	$12.24	$4,785.84	8,535
8/8/2022	John G. McHutchison	CEO	Sell	1,026	$25.56	$26,224.56	16,042
7/25/2022	Michael P Samar	CFO	Sell	168	$26.64	$4,475.52	6,435
5/31/2022	William E Iv Delaney	Insider	Sell	347	$23.04	$7,994.88	6,368

See Full Table

SEC Filings (Institutional Ownership Changes) for Assembly Biosciences (NASDAQ:ASMB)

19.92% of Assembly Biosciences stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Assembly Biosciences Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
2/17/2025	Man Group plc	19,567	$0.31M	0.0%	N/A	0.308%
2/14/2025	Northern Trust Corp	28,649	$0.45M	0.0%	-3.9%	0.450%
2/14/2025	B Group Inc.	50,651	$0.80M	0.5%	N/A	0.796%
2/14/2025	Gilead Sciences Inc.	2,209,471	$34.87M	2.2%	N/A	34.740%
2/13/2025	Marshall Wace LLP	14,823	$0.23M	0.0%	+16.5%	0.233%
2/13/2025	Renaissance Technologies LLC	94,711	$1.50M	0.0%	+44.3%	1.489%
2/12/2025	JPMorgan Chase & Co.	11,427	$0.18M	0.0%	+225.6%	0.180%
2/10/2025	Monimus Capital Management LP	42,067	$0.66M	0.6%	N/A	0.661%
1/30/2025	Palumbo Wealth Management LLC	11,427	$0.18M	0.1%	N/A	0.180%
1/29/2025	Peapod Lane Capital LLC	62,970	$0.99M	1.0%	N/A	0.990%
12/26/2024	JPMorgan Chase & Co.	3,509	$53K	0.0%	+5,137.3%	0.055%
11/16/2024	Geode Capital Management LLC	47,034	$0.71M	0.0%	-13.6%	0.740%
11/13/2024	FMR LLC	15,855	$0.24M	0.0%	+29.7%	0.249%
8/15/2024	Armistice Capital LLC	468,000	$6.42M	0.1%	N/A	8.489%
8/9/2024	Renaissance Technologies LLC	54,911	$0.75M	0.0%	+39.2%	0.997%
8/6/2024	Acadian Asset Management LLC	13,558	$0.18M	0.0%	+131.0%	0.246%
5/10/2024	Acadian Asset Management LLC	5,868	$78K	0.0%	-91.7%	0.107%
5/10/2024	Vanguard Group Inc.	196,368	$2.61M	0.0%	-91.6%	3.581%
5/7/2024	Marquette Asset Management LLC	9,016	$0.12M	0.0%	-83.4%	0.165%
2/2/2024	Marquette Asset Management LLC	54,464	$45K	0.0%	N/A	0.083%
2/2/2024	Acuitas Investments LLC	265,585	$0.22M	0.1%	N/A	0.404%
1/31/2024	Federated Hermes Inc.	304,735	$0.25M	0.0%	-10.9%	0.463%
12/7/2023	Hudson Bay Capital Management LP	199,789	$0.18M	0.0%	-75.8%	0.304%
11/13/2023	Acadian Asset Management LLC	83,470	$73K	0.0%	-26.7%	0.127%
8/7/2023	Acadian Asset Management LLC	113,854	$0.13M	0.0%	-27.7%	0.218%
5/12/2023	Platinum Investment Management Ltd.	890,736	$0.75M	0.0%	-18.6%	1.709%
5/8/2023	Federated Hermes Inc.	363,023	$0.31M	0.0%	-2.8%	0.699%
2/14/2023	Susquehanna International Group LLP	21,255	$28K	0.0%	-37.7%	0.044%
2/13/2023	Platinum Investment Management Ltd.	1,094,770	$1.42M	0.1%	-24.5%	2.244%
2/10/2023	Connor Clark & Lunn Investment Management Ltd.	65,393	$85K	0.0%	-49.6%	0.134%
11/15/2022	Platinum Investment Management Ltd.	1,450,328	$2.38M	0.1%	-8.9%	2.973%
11/14/2022	Healthcare of Ontario Pension Plan Trust Fund	570,300	$0.94M	0.0%	N/A	1.169%
11/10/2022	Connor Clark & Lunn Investment Management Ltd.	129,752	$0.21M	0.0%	-9.2%	0.268%
11/7/2022	Virtu Financial LLC	30,046	$49K	0.0%	N/A	0.062%
11/3/2022	Barclays PLC	37,194	$61K	0.0%	-76.9%	0.077%
10/27/2022	Assenagon Asset Management S.A.	253,783	$0.42M	0.0%	-62.9%	0.524%
9/16/2022	Federated Hermes Inc.	373,665	$0.79M	0.0%	-2.0%	0.771%
8/11/2022	Platinum Investment Management Ltd.	1,591,272	$3.34M	0.1%	-16.7%	3.300%
8/5/2022	Connor Clark & Lunn Investment Management Ltd.	142,915	$0.30M	0.0%	-13.4%	0.296%
7/27/2022	Assenagon Asset Management S.A.	684,846	$1.44M	0.0%	+1,422.3%	1.420%
7/19/2022	Commonwealth Equity Services LLC	25,749	$54K	0.0%	+30.4%	0.053%
5/16/2022	Eversept Partners LP	280,000	$0.58M	0.0%	-9.7%	0.582%
5/12/2022	Acadian Asset Management LLC	927,402	$1.91M	0.0%	-42.4%	1.927%
5/11/2022	GSA Capital Partners LLP	135,834	$0.28M	0.0%	N/A	0.282%
4/26/2022	Marquette Asset Management LLC	58,246	$0.12M	0.0%	+21.3%	0.121%
4/25/2022	Assenagon Asset Management S.A.	44,987	$93K	0.0%	N/A	0.093%
2/14/2022	Deep Track Capital LP	3,000,000	$6.99M	0.5%	N/A	6.268%
2/14/2022	Eversept Partners LP	310,000	$0.72M	0.1%	-11.4%	0.648%
2/10/2022	Candriam Luxembourg S.C.A.	1,838,221	$4.28M	0.0%	+25.1%	3.841%
2/10/2022	Acadian Asset Management LLC	1,608,760	$3.75M	0.0%	+13.9%	3.361%
2/10/2022	Connor Clark & Lunn Investment Management Ltd.	170,216	$0.40M	0.0%	+8.8%	0.356%
2/9/2022	Dimensional Fund Advisors LP	553,428	$1.29M	0.0%	+54.0%	1.156%
1/21/2022	Russell Investments Group Ltd.	123,748	$0.29M	0.0%	+41.2%	0.259%
1/19/2022	Marquette Asset Management LLC	48,000	$0.11M	0.0%	+73.7%	0.100%
12/29/2021	Hudson Bay Capital Management LP	850,000	$2.96M	0.0%	+13.3%	1.776%
11/16/2021	Two Sigma Advisers LP	348,700	$1.21M	0.0%	-53.9%	0.729%
11/15/2021	Hudson Bay Capital Management LP	850,000	$2.96M	0.0%	+13.3%	1.776%
11/15/2021	Eversept Partners LP	350,000	$1.22M	0.1%	N/A	0.731%
11/15/2021	Dimensional Fund Advisors LP	359,315	$1.25M	0.0%	-23.4%	0.751%
11/15/2021	Franklin Resources Inc.	584,688	$2.04M	0.0%	+10.6%	1.222%
11/12/2021	Renaissance Technologies LLC	130,600	$0.45M	0.0%	-63.3%	0.273%
11/12/2021	Prosight Management LP	265,634	$0.92M	0.5%	+78.2%	0.555%
11/12/2021	Geode Capital Management LLC	525,263	$1.83M	0.0%	+11.2%	1.097%
11/12/2021	Connor Clark & Lunn Investment Management Ltd.	156,415	$0.54M	0.0%	+3.1%	0.327%
11/10/2021	Goldman Sachs Group Inc.	131,367	$0.46M	0.0%	-30.8%	0.292%
11/10/2021	IndexIQ Advisors LLC	97,739	$0.34M	0.0%	+11.1%	0.204%
11/9/2021	Barclays PLC	212,980	$0.74M	0.0%	+31.3%	0.445%
11/9/2021	BlackRock Inc.	1,969,977	$6.86M	0.0%	+3.0%	4.116%
11/9/2021	Candriam Luxembourg S.C.A.	1,468,846	$5.11M	0.0%	+31.9%	3.069%
11/8/2021	Russell Investments Group Ltd.	87,636	$0.30M	0.0%	+72.7%	0.195%
10/12/2021	Marquette Asset Management LLC	27,641	$96K	0.0%	+21.8%	0.061%
9/17/2021	Virtu Financial LLC	64,020	$0.25M	0.0%	N/A	0.142%
9/3/2021	Parametric Portfolio Associates LLC	89,340	$0.35M	0.0%	+106.5%	0.199%
8/17/2021	Raffles Associates LP	100,000	$0.39M	0.3%	+100.0%	0.222%
8/17/2021	Millennium Management LLC	532,327	$2.07M	0.0%	+510.2%	1.184%
8/17/2021	Armistice Capital LLC	2,224,000	$8.63M	0.2%	-0.5%	4.945%
8/17/2021	Boothbay Fund Management LLC	21,145	$82K	0.0%	+74.2%	0.047%
8/17/2021	Bridgeway Capital Management LLC	64,000	$0.25M	0.0%	-57.3%	0.142%
8/16/2021	SG3 Management LLC	10,000	$39K	0.0%	N/A	0.022%
8/16/2021	LMR Partners LLP	14,225	$55K	0.0%	N/A	0.032%
8/16/2021	Cubist Systematic Strategies LLC	33,277	$0.13M	0.0%	-45.4%	0.074%
8/16/2021	Occudo Quantitative Strategies LP	89,502	$0.35M	0.1%	-7.9%	0.199%
8/16/2021	New York Life Investments Alternatives	11,324	$44K	0.0%	N/A	0.025%
8/16/2021	Charles Schwab Investment Management Inc.	194,046	$0.75M	0.0%	-12.9%	0.431%
8/16/2021	State Street Corp	170,423	$0.66M	0.0%	-72.2%	0.379%
8/16/2021	Tibra Equities Europe Ltd	72,700	$0.28M	0.1%	N/A	0.162%
8/16/2021	Federated Hermes Inc.	523,682	$2.03M	0.0%	+15,588.5%	1.164%
8/16/2021	Goldman Sachs Group Inc.	189,721	$0.74M	0.0%	+18.9%	0.422%
8/13/2021	Renaissance Technologies LLC	355,841	$1.38M	0.0%	-38.4%	0.791%
8/13/2021	Northern Trust Corp	102,163	$0.40M	0.0%	-72.5%	0.227%
8/13/2021	Franklin Resources Inc.	528,688	$2.05M	0.0%	-41.9%	1.176%
8/13/2021	Geode Capital Management LLC	472,303	$1.83M	0.0%	-28.1%	1.050%
8/13/2021	Vanguard Group Inc.	1,883,644	$7.31M	0.0%	-6.1%	4.188%
8/12/2021	Vida Ventures Advisors LLC	384,635	$1.49M	0.4%	-14.5%	0.855%
8/12/2021	Dimensional Fund Advisors LP	469,193	$1.82M	0.0%	-5.7%	1.043%
8/12/2021	JPMorgan Chase & Co.	55,522	$0.22M	0.0%	-80.2%	0.123%
8/12/2021	Ergoteles LLC	108,600	$0.42M	0.0%	N/A	0.241%
8/12/2021	Connor Clark & Lunn Investment Management Ltd.	151,677	$0.59M	0.0%	+9.3%	0.337%
8/12/2021	Bridgefront Capital LLC	11,503	$45K	0.0%	N/A	0.026%
8/11/2021	Bank of New York Mellon Corp	22,996	$90K	0.0%	-81.8%	0.051%

Data available starting January 2016

See Full Table

Assembly Biosciences, Inc., a biotechnology company, develops therapeutic candidates for the treatment of viral diseases. It develops ABI-5366, a long-acting herpes simplex virus (HSV) helicase-primase inhibitor that is in Phase 1a/1b clinical trial to treat recurrent genital herpes; ABI-1179, which is in Phase 1a/1b clinical trial for the treatment of recurrent genital herpes; and ABI-6250, a small molecule orally bioavailable hepatitis delta virus entry inhibitor that is in Phase 1a clinical trial. The company also develops ABI-4334, a next-generation capsid assembly modulator, which is in Phase 1b clinical trial for the treatment of hepatitis B virus (HBV). In addition, it develops an oral non-nucleoside polymerase inhibitor targeting transplant-related herpesviruses; and a small molecule interferon-a receptor agonist targeting HBV and HDV. The company has collaboration agreements with Gilead Sciences, Inc. and BeiGene, Ltd. The company was formerly known as Ventrus Biosciences, Inc. and changed its name to Assembly Biosciences, Inc. in June 2014. Assembly Biosciences, Inc. was incorporated in 2005 and is headquartered in South San Francisco, California.

Today's Range

Now: $9.31

$9.05

$9.98

50 Day Range

MA: $12.13

$9.31

$14.77

52 Week Range

Now: $9.31

$9.04

$19.93

Volume

24,533 shs

Average Volume

24,957 shs

Market Capitalization

$69.85 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.62

Who are the company insiders with the largest holdings of Assembly Biosciences?: Assembly Biosciences' top insider investors include:
Alexander Schornstein (Major Shareholder)
John G Mchutchison (Director)
Jason A Okazaki (CEO)
Nicole S White (Insider)
Jeanette M Bjorkquist (Insider)
Michael Houghton (Director)
Learn More about top insider investors at Assembly Biosciences.