REGENXBIO Inc.
US ˙ NasdaqGS ˙ US75901B1070

SecurityRGNX / REGENXBIO Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Trexquant Investment LP closes position in RGNX / REGENXBIO Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 0 shares of REGENXBIO Inc. (US:RGNX) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 250,698 shares of REGENXBIO Inc.. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F REGENXBIO COM 75901B107 0 -100.00 0
2026-02-17 2025-12-31 13F REGENXBIO COM 75901B107 250,698 -20,841 -7.68 3,610 37.79 0.0322
2025-11-14 2025-09-30 13F REGENXBIO COM 75901B107 271,539 -288,825 -51.54 2,620 -43.04 0.0270
2025-08-12 2025-06-30 13F REGENXBIO COM 75901B107 560,364 101,826 22.21 4,601 40.33 0.0519
2025-05-14 2025-03-31 13F REGENXBIO COM 75901B107 458,538 308,516 205.65 3,279 182.83 0.0381
2025-02-12 2024-12-31 13F REGENXBIO COM 75901B107 150,022 150,022 1,160 0.0135
2024-11-12 2024-09-30 13F REGENXBIO COM 75901B107 0 -89,605 -100.00 0 -100.00
2024-08-13 2024-06-30 13F REGENXBIO COM 75901B107 89,605 38,962 76.93 1,048 -1.78 0.0160
2024-05-14 2024-03-31 13F REGENXBIO COM 75901B107 50,643 -19,471 -27.77 1,067 -15.18 0.0213
2024-02-09 2023-12-31 13F REGENXBIO COM 75901B107 70,114 -15,799 -18.39 1,259 -11.03 0.0283
2023-11-13 2023-09-30 13F REGENXBIO COM 75901B107 85,913 72,742 552.29 1,414 437.64 0.0355
2023-08-11 2023-06-30 13F REGENXBIO COM 75901B107 13,171 -19,201 -59.31 263 -57.03 0.0069
2023-05-15 2023-03-31 13F REGENXBIO COM 75901B107 32,372 18,333 130.59 612 92.45 0.0168
2023-02-13 2022-12-31 13F REGENXBIO COM 75901B107 14,039 14,039 318 0.0090
2022-08-11 2022-06-30 13F REGENXBIO COM 75901B107 0 -42,655 -100.00 0 -100.00
2022-05-13 2022-03-31 13F REGENXBIO COM 75901B107 42,655 42,655 1,416 0.0665
2020-08-07 2020-06-30 13F REGENXBIO COM 75901B107 0 -8,751 -100.00 0 -100.00
2020-05-08 2020-03-31 13F REGENXBIO COM 75901B107 8,751 8,751 283 0.0205
2018-08-07 2018-06-30 13F REGENXBIO COM 75901B107 0 -7,815 -100.00 0 -100.00
2018-05-03 2018-03-31 13F REGENXBIO COM 75901B107 7,815 7,815 233 0.0162
2017-08-01 2017-06-30 13F REGENXBIO COM 75901B107 0 -25,109 -100.00 0 -100.00
2017-05-08 2017-03-31 13F REGENXBIO COM 75901B107 25,109 25,109 485 0.0622
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.