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PRAX in the 13F filings

Praxis Precision Medicines I · CUSIP 74006W207

Sector · Pharmaceuticals and biotechnologyTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Pharmaceutical preparations
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
30 Jun 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 3 Aug 2026
Managers listing it
25
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 5 listed it in both
Shares listed
8,132,888
combined, among listed positions
Reported value
$2.7bn
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: 17 buyers (opened or added shares) and 8 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +1,218,350.

Managers listing PRAX 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.

25 of 25 holders

ActionFiling
Janus Henderson Group Ltd3,421,374$1.1bn0.47%Trimmed-37,48914 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)2,316,907$776munder 0.1%Added+155,96413 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc942,999$316munder 0.1%Added+312,14714 Aug 2026 (the filing on sec.gov)
Invesco Ltd537,548$180munder 0.1%Added+476,15114 Aug 2026 (the filing on sec.gov)
Woodline Partners LP200,013$67m0.21%Held014 Aug 2026 (the filing on sec.gov)
Marshall Wace LLP137,008$46munder 0.1%Added+91,85913 Aug 2026 (the filing on sec.gov)
Wellington Management Group LLP125,867$42munder 0.1%Trimmed-48,48314 Aug 2026 (the filing on sec.gov)
MFS Investment Management107,409$36munder 0.1%Added+100,0213 Aug 2026 (the filing on sec.gov)
Neuberger Berman Group LLC89,468$30munder 0.1%Added+63,50827 Oct 2026 (the filing on sec.gov)
AllianceBernstein LP71,518$23munder 0.1%Added+43,81814 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC58,446$20munder 0.1%Trimmed-21014 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC42,501$14munder 0.1%Added+40,49114 Aug 2026 (the filing on sec.gov)
Man Group PLC21,164$7.1munder 0.1%Added+17,99114 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP18,758$6.3munder 0.1%Added+1,16014 Aug 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC10,306$3.5munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC7,331$2.5munder 0.1%Newnew2 Sep 2026 (the filing on sec.gov)
Polen Capital Management LLC7,252$2.4munder 0.1%Trimmed-2,7914 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.5,140$1.7munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP3,594$1.2munder 0.1%Trimmed-4,92314 Aug 2026 (the filing on sec.gov)
Tudor Investment Corp2,183$731kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Balyasny Asset Management LLC1,880$629kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP1,478$495kunder 0.1%Added+50614 Aug 2026 (the filing on sec.gov)
Jane Street Group LLC1,008$337kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Millennium Management LLC995$333kunder 0.1%Trimmed-2,83614 Aug 2026 (the filing on sec.gov)
Acadian Asset Management LLC741$246kunder 0.1%Held013 Aug 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q1 2026 to Q2 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

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

New (6)

Exited (2)

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.
4 in Q3 2024 to 6 in Q2 2026

Tracked managers listing it, at least.

02468Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
PRAX by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20231$16m10
Q1 20247$108m52
Q2 20242$74m22
Q3 20244$179m22
Q4 20244$224m13
Q1 20253$97m21
Q2 20252$147m21
Q3 20253$248m30
Q4 20254$1.4bn186
Q1 20266$2.1bn1512
Q2 20266$2.4bn178

Compare with…

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

PRAX and LLY →PRAX and JNJ →PRAX and VRTX →Choose a stock to compare with PRAX →

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 PRAX, latest filings →Back to the 13F Explorer →