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SNDX · VRTX in the 13F filings

Two to four stocks side by side among the 95 tracked managers: who lists them, how that has moved, who bought and sold in a quarter, and which managers hold more than one.

Holders over time

Tracked managers listing each stock every quarter, at least, or their combined reported value. A gap is a quarter in which no tracked manager listed it. Click a quarter to compare there.
  • SNDX
  • VRTX
010203040202120222023202420252026
Holders and value by quarter
QuarterSNDXVRTX
Q3 20201 holders, $4.1m31 holders, $21.9bn
Q4 20207 holders, $64m30 holders, $18.4bn
Q1 20212 holders, $34m31 holders, $15.4bn
Q2 20211 holders, $3.6m30 holders, $12.7bn
Q3 20211 holders, $11m35 holders, $10.1bn
Q4 20211 holders, $6.8m28 holders, $12.4bn
Q1 2022none listed holders, n.a.23 holders, $16.1bn
Q2 2022none listed holders, n.a.25 holders, $18.1bn
Q3 20222 holders, $20m22 holders, $18.4bn
Q4 20223 holders, $235m28 holders, $18.4bn
Q1 20232 holders, $159m26 holders, $21.4bn
Q2 20235 holders, $209m27 holders, $24.7bn
Q3 20234 holders, $160m33 holders, $24.3bn
Q4 20237 holders, $322m32 holders, $28.6bn
Q1 20249 holders, $362m31 holders, $29.8bn
Q2 20248 holders, $322m29 holders, $33.4bn
Q3 20246 holders, $117m27 holders, $33.5bn
Q4 20243 holders, $50m26 holders, $28.5bn
Q1 20254 holders, $76m21 holders, $35.4bn
Q2 20253 holders, $38m21 holders, $32.3bn
Q3 20253 holders, $89m22 holders, $25.9bn
Q4 20256 holders, $165m26 holders, $31.8bn
Q1 20266 holders, $96m25 holders, $31.8bn
Q2 20263 holders, $36m26 holders, $34.6bn
SNDX

Syndax Pharmaceuticals Inc

Holders
3
Reported value
$89m
Buyers
1
Sellers
1

Breadth 0 among 95 comparable managers.

VRTX

Vertex Pharmaceuticals Inc

Holders
22
Reported value
$25.9bn
Buyers
13
Sellers
10

Breadth +3 among 95 comparable managers.

Who holds both, Q3 2025

Among the 24 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

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. Buyers and sellers count comparable managers (those that filed both quarters) by shares, so a rise in value with no rise in shares is the price. Large books are listed to their largest positions. These are 95 tracked managers, not the institutional market.

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