How many institutions held RGNX - REGENXBIO Inc. - Common Stock, par value $0.0001 per share in Q4 2021?

168 institutional investors reported RGNX - REGENXBIO Inc. - Common Stock, par value $0.0001 per share for Q4 2021. Use the holders table for investor-level position and value details.

REGENXBIO Inc. - Common Stock, par value $0.0001 per share (RGNX)

Q: What does CUSIP 75901B107 represent in this 13F holders report?

CUSIP 75901B107 is the security identifier for RGNX - REGENXBIO Inc. - Common Stock, par value $0.0001 per share used to aggregate holder disclosures.

CUSIP: 75901B107

Q4 2021 13F Holders as of 31 Dec 2021

Security type / class: Equity / Common Stock, par value $0.0001 per share
Total 13F shares: 35,507,306
Total 13F value: $1,160,896,124
Share change: +2,052,428
Put/Call ratio: 64%
SEC-reported price per share: $32.70
Number of holders: 168
Value change: +$58,351,051
Number of buys: 85
Number of sells: 72
Shares outstanding: 67,187,075

Security key

75901B107

Report period

Q4 2021

Institutions

168

Top holders

RGNX full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2026 REGENXBIO Inc. SEC filings REGENXBIO Inc. company facts

Broader feeds

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

Reporting periods

Holder history for CUSIP 75901B107

Newer quarter: Q3 2026

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of RGNX - REGENXBIO Inc. - Common Stock, par value $0.0001 per share (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

BlackRock Finance, Inc.

Disclosed value leader

BlackRock Finance, Inc.

Comparable rows

0/15

Latest evidence

30 Sep 2021

13F Highest disclosed value: $266,688,000 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

BlackRock Finance, Inc. has the largest disclosed position value at $266.69M.

0 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 BlackRock Finance, Inc.'s linked filing trail.

Disclosed position value Top 5

BlackRock Finance, Inc. $266.69M

JPMORGAN CHASE & CO $173.56M

VANGUARD GROUP INC $168.06M

STATE STREET CORP $101.76M

Redmile Group, LLC $84.18M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

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

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
BlackRock Finance, Inc.	13F Company 13F	— denominator unverified	$266,688,000 6,361,803 shares	—	30 Sep 2021
JPMORGAN CHASE & CO	13F Company 13F	— denominator unverified	$173,562,000 4,140,326 shares	—	30 Sep 2021
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$168,064,000 4,009,182 shares	—	30 Sep 2021
STATE STREET CORP	13F Company 13F	— denominator unverified	$101,758,000 2,427,438 shares	—	30 Sep 2021
Redmile Group, LLC	13F Company 13F	— denominator unverified	$84,175,000 2,008,001 shares	—	30 Sep 2021
RTW INVESTMENTS, LP	13F Company 13F	— denominator unverified	$77,358,000 1,845,366 shares	—	30 Sep 2021

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 2021

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

Institutions

168

35,507,306

Rows available

168

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 2021 vs Q3 2021 Across Filers

Q3 2021 holders

177

Q4 2021 holders

168

Holder diff

-9

Investor	Q3 2021 Shares	Q4 2021 Shares	Share Diff	Share Chg %	Q3 2021 value	Q4 2021 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend