Security Snapshot

REGENXBIO INC - COMMON STOCK Institutional Ownership

CUSIP: 75901B107

13F Institutional Holders and Ownership History from Q4 2023 to Q1 2026

Latest Period

Q4 2025

Institutions Reporting

4

Shares (Excl. Options)

6,040,603

Price

$14.40

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Type / Class
Equity / COMMON STOCK
Shares outstanding
49,678,432
Price per share
$8.38
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
6,040,603
Total reported value
$86,984,683
% of total 13F portfolios
0%
Share change
+269,524
Value change
+$3,881,145
Number of holders
4
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Quick Takeaways

  • 75901B107 - REGENXBIO INC - COMMON STOCK is tracked under CUSIP 75901B107.
  • 4 institutions reported positions in Q4 2025.
  • 1 significant owner is listed from Schedule 13D/13G reporting.

What Changed

  • Holder count moved from 4 to 1 between Q4 2025 and Q1 2026.
  • Reported value moved from $86,984,683 to $22,123.

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 Form 13F

Latest holder context comes from 4 institutions filings for Q4 2025.

Open SEC Evidence

Investment Quick Answers

What is CUSIP 75901B107?
CUSIP 75901B107 identifies 75901B107 - REGENXBIO INC - COMMON STOCK in SEC 13F datasets.

Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.

Significant Owners of REGENXBIO INC - COMMON STOCK based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
STATE STREET CORP 4.4% 2,185,851 STATE STREET CORPORATION 31 Dec 2024

As of 31 Dec 2025, 4 institutional investors reported holding 6,040,603 shares of REGENXBIO INC - COMMON STOCK. This represents 12% of the company’s total 49,678,432 outstanding shares.

Top 6 Institutional Shareholders

The largest institutional shareholders of REGENXBIO INC - COMMON STOCK together control 12% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
VANGUARD GROUP INC 6.8% 3,374,140 -1.4% 0% $48,587,616
STATE STREET CORP 4.6% 2,286,736 +15% 0% $32,928,998
RENAISSANCE TECHNOLOGIES LLC 0.67% 333,086 +7.6% 0.01% $4,796,438
CITADEL ADVISORS LLC 0.09% 46,641 -16% 0% $671,631
CITADEL ADVISORS LLC 0.02% 11,700 -30% 0% $168,480
CITADEL ADVISORS LLC 0.04% 21,700 -49% 0% $312,480

Institutional Holders of REGENXBIO INC - COMMON STOCK across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 2,640 $22,123 $8.38 1
2025 Q4 6,040,603 $86,984,683 +$3,881,145 $14.40 4
2024 Q3 2,782,883 $29,192,443 -$947,792 $10.49 1
2024 Q2 11,482,573 $134,346,104 +$8,900,096 $11.70 2
2024 Q1 10,721,881 $225,910,034 -$2,462,810 $21.07 2
2023 Q4 10,838,768 $194,555,886 $17.95 2
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