L3VLUP
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
24
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 7 listed it in both
Shares listed
11,208,999
combined, among listed positions
Reported value
$1.3bn
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: 16 buyers (opened or added shares) and 16 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +1,558,482.

Managers listing TFX in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

24 of 24 holders

ActionFiling
Janus Henderson Group Ltd4,291,311$513m0.25%Added+45,19918 May 2026 (the filing on sec.gov)
Baupost Group LLC1,595,000$191m3.73%Newnew14 May 2026 (the filing on sec.gov)
Citadel Advisors LLC1,171,096$140munder 0.1%Added+1,105,53415 May 2026 (the filing on sec.gov)
Millennium Management LLC682,058$82munder 0.1%Added+89,92715 May 2026 (the filing on sec.gov)
Point72 Asset Management LP677,308$81m0.10%Newnew15 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP638,761$76munder 0.1%Trimmed-111,23114 May 2026 (the filing on sec.gov)
Holocene Advisors LP415,335$50m0.12%Added+72,43415 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC401,417$48m0.06%Added+313,72515 May 2026 (the filing on sec.gov)
Freestone Grove Partners LP296,487$35m0.25%Added+95,54815 May 2026 (the filing on sec.gov)
Jane Street Group LLC173,278$21munder 0.1%Newnew12 May 2026 (the filing on sec.gov)
AQR Capital Management LLC147,240$17munder 0.1%Trimmed-1,775,96815 May 2026 (the filing on sec.gov)
Invesco Ltd135,046$16munder 0.1%Trimmed-27,83612 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.116,597$14munder 0.1%Trimmed-196,12015 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP113,052$14m0.11%Newnew14 May 2026 (the filing on sec.gov)
Moore Capital Management LP104,650$13m0.25%Trimmed-30,03615 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC56,700$6.8munder 0.1%Newnew14 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc42,073$5.0munder 0.1%Added+2,91615 May 2026 (the filing on sec.gov)
AllianceBernstein LP38,663$4.7munder 0.1%Added+2,47015 May 2026 (the filing on sec.gov)
Walleye Capital LLC33,758$4.0munder 0.1%Trimmed-285,41013 May 2026 (the filing on sec.gov)
Verition Fund Management LLC30,000$3.6munder 0.1%Trimmed-1,61015 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)26,421$3.2munder 0.1%Trimmed-100,18715 May 2026 (the filing on sec.gov)
Quantbot Technologies LP12,215$1.5m0.06%Newnew13 May 2026 (the filing on sec.gov)
Man Group PLC5,746$687kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC4,787$573kunder 0.1%Added+73027 Oct 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2025 to Q1 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.

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.
12 in Q3 2024 to 9 in Q2 2026

Tracked managers listing it, at least.

051015202014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
TFX by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20136$332mn.a.n.a.
Q3 20134$288mn.a.n.a.
Q4 20134$331mn.a.n.a.
Q1 20147$538mn.a.n.a.
Q2 20148$549mn.a.n.a.
Q3 20148$560mn.a.n.a.
Q4 20148$760mn.a.n.a.
Q1 201512$941mn.a.n.a.
Q2 20157$914mn.a.n.a.
Q3 20156$863mn.a.n.a.
Q4 20156$928mn.a.n.a.
Q1 201613$1.2bnn.a.n.a.
Q2 20168$1.3bnn.a.n.a.
Q3 201610$1.3bnn.a.n.a.
Q4 20168$1.3bnn.a.n.a.
Q1 201710$1.5bnn.a.n.a.
Q2 201710$2.0bnn.a.n.a.
Q3 201710$2.4bnn.a.n.a.
Q4 201712$2.4bnn.a.n.a.
Q1 201810$2.3bnn.a.n.a.
Q2 201812$2.4bnn.a.n.a.
Q3 20188$2.7bnn.a.n.a.
Q4 20188$2.8bnn.a.n.a.
Q1 20198$3.5bnn.a.n.a.
Q2 201910$3.5bnn.a.n.a.
Q3 20199$3.6bnn.a.n.a.
Q4 201911$3.7bnn.a.n.a.
Q1 202012$2.7bnn.a.n.a.
Q2 20208$3.8bnn.a.n.a.
Q3 202012$3.7bnn.a.n.a.
Q4 202012$4.5bnn.a.n.a.
Q1 20219$4.5bnn.a.n.a.
Q2 202110$4.8bnn.a.n.a.
Q3 202111$4.9bnn.a.n.a.
Q4 202115$4.3bnn.a.n.a.
Q1 202213$4.8bnn.a.n.a.
Q2 202213$3.4bnn.a.n.a.
Q3 202212$1.5bnn.a.n.a.
Q4 202210$1.8bnn.a.n.a.
Q1 20239$2.1bnn.a.n.a.
Q2 20238$2.2bnn.a.n.a.
Q3 202311$1.9bnn.a.n.a.
Q4 20238$2.5bn55
Q1 20246$2.2bn25
Q2 202416$2.1bn133
Q3 202412$2.1bn103
Q4 202414$1.3bn86
Q1 202516$1.0bn135
Q2 202510$742m64
Q3 20259$1.0bn56
Q4 20259$989m169
Q1 202610$1.0bn1616
Q2 20269$1.2bn1514

Compare with…

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

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

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