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Institutional Ownership · SEC Form 13F

Who owns TFX (TFX)


Which tracked institutional funds hold TFX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TFX company fundamentals →

Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

366
Institutional holders
47,975,926
Shares held (tracked funds)

How the tape is positioned

85 tracked funds added or opened TFX while 119 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.

A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.

Conviction spread

TFX’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.1pp gap the other way — the median holder sizes TFX more heavily than its largest holder by dollar value does.

Book-share is each fund’s reported value in TFX divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.

Institutional & insider positioning

Between 2025-Q4 and 2026-Q1, across 366 tracked filers holding TFX, 185 increased or opened the position and 238 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.

This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.

New buyers & exits

Funds opening or closing a position in TFX between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.

New buyers 35

  • VANGUARD PORTFOLIO MANAGEMENT LLC$292M
  • VANGUARD CAPITAL MANAGEMENT LLC$237M
  • BAUPOST GROUP LLC/MA$191M
  • Sessa Capital IM, L.P.$183M
  • River Road Asset Management, LLC$110M
  • Irenic Capital Management LP$104M

Full exits 48

  • VANGUARD GROUP INC$571M
  • MANGROVE PARTNERS IM, LLC$31M
  • Integral Health Asset Management, LLC$31M
  • HBK INVESTMENTS L P$23M
  • Soleus Capital Management, L.P.$23M
  • Qube Research & Technologies Ltd$21M

Largest adds

  • CITADEL ADVISORS LLC$132M
  • T. Rowe Price Investment Management, Inc.$112M
  • FULLER & THALER ASSET MANAGEMENT, INC.$78M
  • PZENA INVESTMENT MANAGEMENT LLC$37M
  • BALYASNY ASSET MANAGEMENT L.P.$37M
  • Gumshoe Capital Management LLC$20M

Largest trims

  • MORGAN STANLEY$241M
  • AQR CAPITAL MANAGEMENT LLC$218M
  • Thrivent Financial for Lutherans$91M
  • Boston Partners$57M
  • BlackRock, Inc.$51M
  • Wolf Hill Capital Management, LP$36M

Institutional holders

One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).

FundSharesReported value% of valueQuarter
BlackRock, Inc. trimmed5,023,075$601M9.3%2026-Q1
JANUS HENDERSON GROUP PLC added4,291,311$513M7.9%2026-Q1
T. Rowe Price Investment Management, Inc. added3,836,207$459M7.1%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new2,438,183$292M4.5%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new1,983,824$237M3.7%2026-Q1
BAUPOST GROUP LLC/MA new1,595,000$191M2.9%2026-Q1
Sessa Capital IM, L.P. new1,526,228$183M2.8%2026-Q1
STATE STREET CORP added1,502,857$180M2.8%2026-Q1
FULLER & THALER ASSET MANAGEMENT, INC. added1,363,950$163M2.5%2026-Q1
CITADEL ADVISORS LLC added1,171,096$140M2.2%2026-Q1
COOKE & BIELER LP trimmed1,142,674$137M2.1%2026-Q1
ABRAMS BISON INVESTMENTS, LLC added1,000,000$120M1.8%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added998,420$119M1.8%2026-Q1
DIMENSIONAL FUND ADVISORS LP trimmed997,144$119M1.8%2026-Q1
River Road Asset Management, LLC new922,116$110M1.7%2026-Q1
Irenic Capital Management LP new870,000$104M1.6%2026-Q1
PZENA INVESTMENT MANAGEMENT LLC added699,125$84M1.3%2026-Q1
MILLENNIUM MANAGEMENT LLC added682,058$82M1.3%2026-Q1
Point72 Asset Management, L.P. added677,308$81M1.3%2026-Q1
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed638,761$76M1.2%2026-Q1
NORGES BANK added545,471$75M1.2%2026-Q1
MORGAN STANLEY trimmed536,179$64M1.0%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC added519,785$62M1.0%2026-Q1
Capital International Investors455,825$55M0.8%2026-Q1
BANK OF AMERICA CORP /DE/ added445,958$53M0.8%2026-Q1
Invenomic Capital Management LP added436,125$52M0.8%2026-Q1
Gumshoe Capital Management LLC added426,731$51M0.8%2026-Q1
Holocene Advisors, LP added415,335$50M0.8%2026-Q1
BALYASNY ASSET MANAGEMENT L.P. added401,417$48M0.7%2026-Q1
Newtyn Management, LLC new400,000$48M0.7%2026-Q1
DIAMOND HILL CAPITAL MANAGEMENT INC trimmed342,453$41M0.6%2026-Q1
NORTHERN TRUST CORP added296,721$35M0.5%2026-Q1
Freestone Grove Partners LP added296,487$35M0.5%2026-Q1
AMERIPRISE FINANCIAL INC added286,945$34M0.5%2026-Q1
BOONE CAPITAL MANAGEMENT LLC new278,792$33M0.5%2026-Q1
VANGUARD FIDUCIARY TRUST CO new275,227$33M0.5%2026-Q1
Bank of New York Mellon Corp added263,101$31M0.5%2026-Q1
WEDGE CAPITAL MANAGEMENT L L P/NC trimmed251,717$30M0.5%2026-Q1
TD Asset Management Inc trimmed249,000$30M0.5%2026-Q1
HEARTLAND ADVISORS INC added215,998$26M0.4%2026-Q1
PRINCIPAL FINANCIAL GROUP INC added214,193$26M0.4%2026-Q1
MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed202,524$24M0.4%2026-Q1
GOLDMAN SACHS GROUP INC added198,590$24M0.4%2026-Q1
UBS Group AG trimmed197,347$24M0.4%2026-Q1
Public Sector Pension Investment Board193,002$23M0.4%2026-Q1
Western Standard LLC new184,817$22M0.3%2026-Q1
JANE STREET GROUP, LLC trimmed173,278$21M0.3%2026-Q1
Pictet Asset Management Holding SA added165,842$20M0.3%2026-Q1
VICTORY CAPITAL MANAGEMENT INC added146,099$17M0.3%2026-Q1
Marathon Asset Management Ltd added143,754$17M0.3%2026-Q1
AQR CAPITAL MANAGEMENT LLC trimmed143,443$17M0.3%2026-Q1
GMT Capital Corp new134,600$16M0.2%2026-Q1
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added134,338$16M0.2%2026-Q1
Park West Asset Management LLC new129,400$15M0.2%2026-Q1
SCHRODER INVESTMENT MANAGEMENT GROUP added126,268$15M0.2%2026-Q1
Tejara Capital Ltd added121,300$15M0.2%2026-Q1
Soapstone Management L.P. new118,750$14M0.2%2026-Q1
RHUMBLINE ADVISERS added117,665$14M0.2%2026-Q1
D. E. Shaw & Co., Inc. trimmed116,597$14M0.2%2026-Q1
ExodusPoint Capital Management, LP added113,052$14M0.2%2026-Q1
Rodgers Brothers Inc. added108,333$13M0.2%2026-Q1
SPEECE THORSON CAPITAL GROUP INC added106,277$13M0.2%2026-Q1
MOORE CAPITAL MANAGEMENT, LP trimmed104,650$13M0.2%2026-Q1
Legal & General Group Plc trimmed103,863$12M0.2%2026-Q1
CITIGROUP INC added100,785$12M0.2%2026-Q1
DEUTSCHE BANK AG\ trimmed95,268$11M0.2%2026-Q1
Sio Capital Management, LLC added94,800$11M0.2%2026-Q1
Wolf Hill Capital Management, LP trimmed94,464$11M0.2%2026-Q1
Invesco Ltd. trimmed92,847$11M0.2%2026-Q1
ArrowMark Colorado Holdings LLC added87,400$10M0.2%2026-Q1
Swiss National Bank87,200$10M0.2%2026-Q1
BNP PARIBAS FINANCIAL MARKETS added86,809$10M0.2%2026-Q1
RAYMOND JAMES FINANCIAL INC added75,468$9M0.1%2026-Q1
SEI INVESTMENTS CO trimmed73,065$9M0.1%2026-Q1
FIFTH THIRD BANCORP added68,144$8M0.1%2026-Q1
Nuveen, LLC added65,898$8M0.1%2026-Q1
VANGUARD GROUP INC trimmed4,675,013$571M8.8%2025-Q4 stale
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed610,933$75M1.2%2025-Q3 stale
J. Goldman & Co LP added339,397$42M0.6%2025-Q3 stale
Nearwater Capital Markets, Ltd new290,000$34M0.5%2025-Q2 stale
MANGROVE PARTNERS IM, LLC new256,726$31M0.5%2025-Q4 stale
Integral Health Asset Management, LLC added250,000$31M0.5%2025-Q4 stale
VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed253,013$30M0.5%2025-Q2 stale
HBK INVESTMENTS L P new192,372$23M0.4%2025-Q4 stale
Soleus Capital Management, L.P. new190,000$23M0.4%2025-Q4 stale
Qube Research & Technologies Ltd trimmed174,826$21M0.3%2025-Q4 stale
Boston Trust Walden Corp trimmed131,364$18M0.3%2025-Q1 stale
DKRT Investments Corp.130,000$16M0.2%2025-Q3 stale
WESTWOOD HOLDINGS GROUP INC trimmed130,069$16M0.2%2025-Q4 stale
GREENHAVEN ASSOCIATES INC new122,079$15M0.2%2025-Q4 stale
Empyrean Capital Partners, LP new118,000$14M0.2%2025-Q4 stale
Woodline Partners LP trimmed104,891$13M0.2%2025-Q4 stale
PFM Health Sciences, LP trimmed102,395$12M0.2%2025-Q4 stale
KETTLE HILL CAPITAL MANAGEMENT, LLC new93,768$11M0.2%2025-Q2 stale
IEQ CAPITAL, LLC trimmed89,939$11M0.2%2025-Q4 stale
TWINBEECH CAPITAL LP added90,332$11M0.2%2025-Q2 stale
Goodman Financial Corp added86,210$11M0.2%2025-Q3 stale
First Eagle Investment Management, LLC added84,300$10M0.2%2025-Q4 stale
TUDOR INVESTMENT CORP ET AL added82,451$10M0.2%2025-Q2 stale
CAPITAL FUND MANAGEMENT S.A. trimmed65,023$8M0.1%2025-Q3 stale

Ownership over time

Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.

HoldersTotal shares

Reading this table

Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.

About 13F filings

A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.

Learn how to read institutional ownership