L3VLUP
Quarter end
30 Jun 2026
the date the book describes
Filed
2 Sep 2026
latest of these filings; the earliest 13 Aug 2026
Managers listing it
17
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 0 listed it in both
Shares listed
7,459,972
combined, among listed positions
Reported value
$101m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 15 buyers (opened or added shares) and 3 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +2,464,642.

Managers listing MGTX in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

17 of 17 holders

ActionFiling
Millennium Management LLC2,971,752$40munder 0.1%Trimmed-493,94714 Aug 2026 (the filing on sec.gov)
Woodline Partners LP1,500,135$20m0.06%Added+1,199,81214 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.852,902$12munder 0.1%Added+427,62114 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC650,489$8.8munder 0.1%Added+534,4942 Sep 2026 (the filing on sec.gov)
Janus Henderson Group Ltd475,757$6.4munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Point72 Asset Management LP202,393$2.7munder 0.1%Added+131,44014 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC196,583$2.7munder 0.1%Added+85,59014 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC162,412$2.2munder 0.1%Added+143,82814 Aug 2026 (the filing on sec.gov)
Wellington Management Group LLP142,923$1.9munder 0.1%Added+16,59214 Aug 2026 (the filing on sec.gov)
Invesco Ltd94,540$1.3munder 0.1%Added+10514 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc49,380$668kunder 0.1%Added+17,95014 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP48,474$655kunder 0.1%Added+11,56014 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP54,690$474kunder 0.1%Added+10014 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP28,769$389kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC12,634$171kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP10,190$138kunder 0.1%Held014 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)5,949$80kunder 0.1%Added+12813 Aug 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

There is no earlier quarter on file to compare with.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
1 in Q2 2018 to 1 in Q2 2026

Tracked managers listing it, at least.

00111Q2 2018Q1 2019Q2 2019Q3 2019Q4 2019Q4 2024Q1 2025Q2 2026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MGTX by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20181$1.1mn.a.n.a.
Q1 20191$3.2mn.a.n.a.
Q2 20191$2.3mn.a.n.a.
Q3 20191$998kn.a.n.a.
Q4 20191$1.8mn.a.n.a.
Q4 20241$9.3m10
Q1 20251$5.4m01
Q2 20261$20m153

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

MGTX and GILD →MGTX and AMGN →MGTX and ARGX →Choose a stock to compare with MGTX →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own MGTX, latest filings →Back to the 13F Explorer →