How many institutions held ACRS - Aclaris Therapeutics, Inc. - Common Stock, $0.00001 par value in Q4 2020?

79 institutional investors reported ACRS - Aclaris Therapeutics, Inc. - Common Stock, $0.00001 par value for Q4 2020. Use the holders table for investor-level position and value details.

Aclaris Therapeutics, Inc. - Common Stock, $0.00001 par value (ACRS)

Q: What does CUSIP 00461U105 represent in this 13F holders report?

CUSIP 00461U105 is the security identifier for ACRS - Aclaris Therapeutics, Inc. - Common Stock, $0.00001 par value used to aggregate holder disclosures.

CUSIP: 00461U105

Q4 2020 13F Holders as of 31 Dec 2020

Security type / class: Equity / Common Stock, $0.00001 par value
Total 13F shares: 31,934,018
Total 13F value: $206,591,000
Share change: +4,184,235
Put/Call ratio: 5.6%
SEC-reported price per share: $6.47
Number of holders: 79
Value change: +$27,717,112
Number of buys: 43
Number of sells: 27
Shares outstanding: 138,752,791

Security key

00461U105

Report period

Q4 2020

Institutions

Top holders

ACRS full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2025 Aclaris Therapeutics, Inc. SEC filings Aclaris Therapeutics, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 00461U105

Newer quarter: Q3 2025

Recent filing periods:

Q2 2026 Q3 2025

Ownership snapshot

Top reported holders of ACRS - Aclaris Therapeutics, Inc. - Common Stock, $0.00001 par value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

RENAISSANCE TECHNOLOGIES LLC

Disclosed value leader

RENAISSANCE TECHNOLOGIES LLC

Comparable rows

15/15

Latest evidence

30 Sep 2020

13F Lead comparable stake: 2.5% Showing 1-6 of 15 holder rows.

Quick read

RENAISSANCE TECHNOLOGIES LLC leads the comparable SEC ownership view at 2.5%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens RENAISSANCE TECHNOLOGIES LLC's linked filing trail.

Comparable ownership Top 5

RENAISSANCE TECHNOLOGIES LLC 2.5%

ADAGE CAPITAL PARTNERS GP, L.L.C. 1.8%

Samsara BioCapital, LLC 1.6%

Rock Springs Capital Management LP 1.5%

Sofinnova Investments, Inc. 1.4%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
RENAISSANCE TECHNOLOGIES LLC	13F Company 13F	2.5%	$8,824,000 3,433,390 shares	—	30 Sep 2020
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F Company 13F	1.8%	$6,425,000 2,500,000 shares	—	30 Sep 2020
Samsara BioCapital, LLC	13F Company 13F	1.6%	$5,534,000 2,153,265 shares	—	30 Sep 2020
Rock Springs Capital Management LP	13F Company 13F	1.5%	$5,336,000 2,076,307 shares	—	30 Sep 2020
Sofinnova Investments, Inc.	13F Company 13F	1.4%	$4,913,000 1,911,573 shares	—	30 Sep 2020
Parkman Healthcare Partners LLC	13F Company 13F	1.3%	$4,736,000 1,842,661 shares	—	30 Sep 2020

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q4 2020

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

31,934,018

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q4 2020 vs Q3 2025 Across Filers

Q3 2025 holders

103

Q4 2020 holders

Holder diff

-24

Investor	Q3 2025 Shares	Q4 2020 Shares	Share Diff	Share Chg %	Q3 2025 value	Q4 2020 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend