Security Snapshot

ASSEMBLY BIOSCIENCES, INC. - Common Stock, par value $0.001 (ASMB) Institutional Ownership

Q: What is CUSIP 045396108?

CUSIP 045396108 is the security identifier used in SEC filing datasets for ASMB - ASSEMBLY BIOSCIENCES, INC. - Common Stock, par value $0.001.

Q: Who owns ASMB - ASSEMBLY BIOSCIENCES, INC. - Common Stock, par value $0.001 based on 13F filings?

Open this security page to review the newest available 13F ownership history, top reported holders, and period-by-period changes.

CUSIP: 045396108

13F Institutional Holders and Ownership History from Q3 2014 to Q1 2024

Latest Period

n/a

Institutions Reporting

Shares (Excl. Options)

Price

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Type / Class: Equity / Common Stock, par value $0.001
Symbol: ASMB on Nasdaq
Shares outstanding: 15,535,831

Reported Shares, Excluding Options vs Price

Reported Value, Excluding Options

Total Investors

Quick Takeaways

ASMB - ASSEMBLY BIOSCIENCES, INC. - Common Stock, par value $0.001 is tracked under CUSIP 045396108.
Latest finished 13F holder period is not available.
1 significant owner is listed from Schedule 13D/13G reporting.

What Changed

Holder count moved from 42 to 0 between Q4 2023 and Q1 2024.
Reported value moved from $7,090,909 to $0.

Why This Matters

You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Source Evidence

Source: SEC Schedule 13D/G

Ownership context comes from Schedule 13D/G and available holder history for this CUSIP.

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Investment Quick Answers

What is CUSIP 045396108?
CUSIP 045396108 identifies ASMB - ASSEMBLY BIOSCIENCES, INC. - Common Stock, par value $0.001 in SEC 13F datasets.

Where can I see the latest institutional holders?
Use the ownership history tables below to review the newest available institutional filing periods.

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Recent Quarterly Holder Reports

Open recent reporting periods for CUSIP 045396108:

Q1 2024 (0 holders) Q4 2023 (42 holders) Q3 2023 (32 holders) Q2 2023 (31 holders) Q1 2023 (37 holders) Q4 2022 (38 holders) Q3 2022 (47 holders) Q2 2022 (51 holders) Q1 2022 (52 holders) Q4 2021 (57 holders)

Significant Owners of ASSEMBLY BIOSCIENCES, INC. - Common Stock, par value $0.001 (ASMB) based on Schedule 13D/G filings

Filer	Ownership	Change %	Holdings Value	Net Change	Nb Shares	Change %	Reporting Name	Report Period
GILEAD SCIENCES, INC.	29%	-3%			4,505,391	+104%	GILEAD SCIENCES, INC.	08 Aug 2025

Institutional Holders of ASSEMBLY BIOSCIENCES, INC. - Common Stock, par value $0.001 (ASMB) across Reporting Periods

Period	Reported Shares, Excl. Options	Value, Excl. Options	Value Change	Puts Notional Value	Calls Notional Value	Price (Median)	Investors
2024 Q1	0	$0	-$7,090,883	$0	$0		0
2023 Q4	8,647,319	$7,090,909	-$888,258	$5,085	$2,460	$0.82	42
2023 Q3	9,538,435	$8,441,336	-$822,987		$9,381	$0.88	32
2023 Q2	10,465,062	$12,032,628	-$1,413,281		$17,480	$1.15	31
2023 Q1	12,058,487	$10,132,844	-$2,696,808		$22,775	$0.84	37
2022 Q4	14,193,683	$18,446,999	-$3,479,618		$23,270	$1.30	38
2022 Q3	16,595,417	$27,215,067	-$1,058,512		$35,000	$1.64	47
2022 Q2	17,189,015	$36,094,086	-$3,856,015		$164,000	$2.10	51
2022 Q1	19,078,839	$39,299,944	-$9,004,415	$0	$70,000	$2.06	52
2021 Q4	23,096,231	$53,810,453	-$9,786,082	$86,000	$65,000	$2.33	57
2021 Q3	22,706,616	$79,015,136	-$15,483,325	$933,000	$851,000	$3.48	61
2021 Q2	27,092,112	$105,110,485	-$6,950,361	$1,328,000	$1,149,000	$3.88	87
2021 Q1	27,158,674	$124,930,551	+$3,461,631	$425,000	$379,000	$4.60	102
2020 Q4	26,661,326	$161,302,039	-$148,788,454	$127,000	$338,000	$6.05	106
2020 Q3	30,096,975	$494,769,297	+$965,633		$750,000	$16.44	115
2020 Q2	29,993,173	$700,372,173	+$25,372,004	$0	$529,000	$23.32	103
2020 Q1	28,961,280	$429,566,715	+$7,108,278	$3,045,000	$2,598,000	$14.83	96
2019 Q4	28,128,251	$575,504,046	+$162,191,719	$3,302,000	$3,955,000	$20.46	99
2019 Q3	20,717,323	$203,852,941	-$9,083,327	$102,000	$5,409,000	$9.83	96
2019 Q2	21,081,214	$285,953,531	-$38,445,831	$0	$7,581,000	$13.49	105
2019 Q1	22,086,821	$435,072,882	+$11,598,737	$654,000	$3,882,000	$19.69	100
2018 Q4	21,336,229	$482,552,988	-$22,408,761	$226,000	$238,000	$22.62	105
2018 Q3	21,451,389	$796,704,124	+$177,939,690	$2,010,000	$6,634,000	$37.14	110
2018 Q2	16,619,055	$651,643,809	+$19,143,017	$4,218,000	$6,697,000	$39.21	103
2018 Q1	16,057,360	$789,004,865	+$27,408,726	$7,981,000	$19,180,000	$49.14	105
2017 Q4	15,553,324	$703,758,442	+$144,330,948	$3,439,000	$3,634,000	$45.25	96
2017 Q3	12,365,961	$431,475,805	-$9,930,754	$1,143,000	$0	$34.92	71
2017 Q2	12,545,320	$258,622,356	+$12,681,076	$28,000	$3,837,000	$20.65	64
2017 Q1	11,915,179	$301,467,000	+$19,729,899	$1,356,000	$5,098,000	$25.49	49
2016 Q4	11,664,156	$140,277,170	+$7,379,773	$595,000	$122,000	$12.15	36
2016 Q3	11,111,633	$79,350,000	-$991,944			$7.21	35
2016 Q2	11,282,629	$61,880,000	-$5,130,215			$5.55	42
2016 Q1	12,398,866	$61,573,000	-$829,366			$5.02	45
2015 Q4	12,345,854	$92,315,823	-$1,081,570			$7.51	48
2015 Q3	12,381,895	$118,371,122	-$281,444			$9.56	50
2015 Q2	12,067,730	$232,422,915	+$27,421,764			$19.26	57
2015 Q1	10,760,000	$142,462,000	+$85,107,581			$13.24	31
2014 Q4	4,299,218	$33,460,000	+$10,957,571			$7.86	22
2014 Q3	1,641,550	$13,446,000	+$13,446,000			$8.19	19