Who owns Integra LifeSciences Holdings Corporation (IART)
Which tracked institutional funds hold IART, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See IART company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-26). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on IART is one-sided between 2025-Q4 and 2026-Q1: 22 added or opened and 66 trimmed or exited — on balance reducing.
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
IART’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 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes IART more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in IART 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 201 tracked filers holding IART, 96 increased or opened the position and 112 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 IART 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 8
- VANGUARD PORTFOLIO MANAGEMENT LLC$35M
- VANGUARD CAPITAL MANAGEMENT LLC$27M
- VANGUARD FIDUCIARY TRUST CO$4M
- Sio Capital Management, LLC$4M
- Vanguard Global Advisers, LLC$2M
- MARSHALL WACE, LLP$2M
Full exits 14
- VANGUARD GROUP INC$82M
- J. Goldman & Co LP$15M
- KOTLER KEVIN$5M
- TWO SIGMA ADVISERS, LP$2M
- Olstein Capital Management, L.P.$2M
- IEQ CAPITAL, LLC$1M
Largest adds
- BALYASNY ASSET MANAGEMENT L.P.$5M
- PARADIGM CAPITAL MANAGEMENT INC/NY$5M
- MILLENNIUM MANAGEMENT LLC$4M
- BANK OF AMERICA CORP /DE/$3M
- CITADEL ADVISORS LLC$1M
- Susquehanna Portfolio Strategies, LLC$1M
Largest trims
- BlackRock, Inc.$31M
- Rubric Capital Management LP$23M
- Invesco Ltd.$15M
- MORGAN STANLEY$14M
- DIMENSIONAL FUND ADVISORS LP$12M
- FULLER & THALER ASSET MANAGEMENT, INC.$12M
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).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 10,319,169 | $97M | 10.7% | 2026-Q1 |
| Rubric Capital Management LP | 7,753,934 | $73M | 8.1% | 2026-Q1 |
| PARADIGM CAPITAL MANAGEMENT INC/NY added | 4,012,698 | $38M | 4.2% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 3,686,637 | $35M | 3.8% | 2026-Q1 |
| MORGAN STANLEY trimmed | 3,584,155 | $34M | 3.7% | 2026-Q1 |
| FULLER & THALER ASSET MANAGEMENT, INC. trimmed | 3,529,404 | $33M | 3.7% | 2026-Q1 |
| Invesco Ltd. trimmed | 3,038,208 | $29M | 3.2% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 2,890,824 | $27M | 3.0% | 2026-Q1 |
| STATE STREET CORP added | 2,886,556 | $27M | 3.0% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 2,774,988 | $26M | 2.9% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC added | 2,115,255 | $20M | 2.2% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 1,876,750 | $18M | 2.0% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 1,656,985 | $16M | 1.7% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,612,145 | $15M | 1.7% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 1,414,509 | $13M | 1.5% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 1,109,144 | $10M | 1.2% | 2026-Q1 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP trimmed | 1,059,286 | $10M | 1.1% | 2026-Q1 |
| Invenomic Capital Management LP trimmed | 1,011,315 | $10M | 1.1% | 2026-Q1 |
| GLENMEDE TRUST CO NA added | 984,686 | $9M | 1.0% | 2026-Q1 |
| Allianz Asset Management GmbH added | 889,604 | $8M | 0.9% | 2026-Q1 |
| NORTHERN TRUST CORP added | 765,273 | $7M | 0.8% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 694,076 | $7M | 0.7% | 2026-Q1 |
| Access Investment Management LLC added | 640,535 | $6M | 0.7% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 622,853 | $6M | 0.6% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 476,701 | $4M | 0.5% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 473,555 | $4M | 0.5% | 2026-Q1 |
| Quantinno Capital Management LP trimmed | 459,429 | $4M | 0.5% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 446,530 | $4M | 0.5% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 434,900 | $4M | 0.5% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 434,568 | $4M | 0.5% | 2026-Q1 |
| Assenagon Asset Management S.A. trimmed | 417,407 | $4M | 0.4% | 2026-Q1 |
| Legal & General Group Plc added | 396,924 | $4M | 0.4% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 395,093 | $4M | 0.4% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 389,499 | $4M | 0.4% | 2026-Q1 |
| Sio Capital Management, LLC added | 383,140 | $4M | 0.4% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 392,468 | $4M | 0.4% | 2026-Q1 |
| Leeward Investments, LLC - MA trimmed | 355,551 | $3M | 0.4% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 325,643 | $3M | 0.3% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 267,926 | $3M | 0.3% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 252,904 | $2M | 0.3% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 242,399 | $2M | 0.3% | 2026-Q1 |
| Public Sector Pension Investment Board added | 239,679 | $2M | 0.2% | 2026-Q1 |
| Walleye Capital LLC added | 218,595 | $2M | 0.2% | 2026-Q1 |
| LSV ASSET MANAGEMENT trimmed | 217,700 | $2M | 0.2% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 212,710 | $2M | 0.2% | 2026-Q1 |
| Trexquant Investment LP trimmed | 207,649 | $2M | 0.2% | 2026-Q1 |
| UBS Group AG trimmed | 202,745 | $2M | 0.2% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 198,383 | $2M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 196,696 | $2M | 0.2% | 2026-Q1 |
| Tejara Capital Ltd added | 193,313 | $2M | 0.2% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 188,421 | $2M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 188,302 | $2M | 0.2% | 2026-Q1 |
| Susquehanna Portfolio Strategies, LLC added | 169,454 | $2M | 0.2% | 2026-Q1 |
| MARSHALL WACE, LLP added | 163,713 | $2M | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 163,124 | $2M | 0.2% | 2026-Q1 |
| Nuveen, LLC trimmed | 155,437 | $1M | 0.2% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC added | 150,570 | $1M | 0.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. | 99,550 | $1M | 0.1% | 2026-Q1 |
| Swiss National Bank | 130,694 | $1M | 0.1% | 2026-Q1 |
| SG Americas Securities, LLC trimmed | 130,554 | $1M | 0.1% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 132,511 | $1M | 0.1% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 127,642 | $1M | 0.1% | 2026-Q1 |
| Summit Trail Advisors, LLC added | 121,616 | $1M | 0.1% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 115,611 | $1M | 0.1% | 2026-Q1 |
| Engineers Gate Manager LP added | 101,062 | $952K | 0.1% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 99,864 | $941K | 0.1% | 2026-Q1 |
| SEI INVESTMENTS CO added | 93,726 | $883K | 0.1% | 2026-Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 79,560 | $749K | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 78,581 | $741K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 6,597,907 | $82M | 9.0% | 2025-Q4 stale |
| LORD, ABBETT & CO. LLC trimmed | 1,328,701 | $29M | 3.2% | 2025-Q1 stale |
| Soleus Capital Management, L.P. added | 1,440,818 | $21M | 2.3% | 2025-Q3 stale |
| Capital Research Global Investors trimmed | 825,742 | $18M | 2.0% | 2025-Q1 stale |
| J. Goldman & Co LP added | 1,243,772 | $15M | 1.7% | 2025-Q4 stale |
| Glenmede Investment Management, LP added | 842,430 | $12M | 1.3% | 2025-Q3 stale |
| Kent Lake PR LLC new | 752,086 | $11M | 1.2% | 2025-Q3 stale |
| KOTLER KEVIN new | 427,445 | $5M | 0.6% | 2025-Q4 stale |
| MACQUARIE GROUP LTD added | 212,676 | $5M | 0.5% | 2025-Q1 stale |
| Cannell & Spears LLC trimmed | 116,630 | $3M | 0.3% | 2025-Q1 stale |
| FIRST TRUST ADVISORS LP added | 169,080 | $2M | 0.3% | 2025-Q3 stale |
| TWO SIGMA ADVISERS, LP trimmed | 194,300 | $2M | 0.3% | 2025-Q4 stale |
| HUSSMAN STRATEGIC ADVISORS, INC. added | 168,000 | $2M | 0.3% | 2025-Q3 stale |
| TWINBEECH CAPITAL LP added | 185,992 | $2M | 0.3% | 2025-Q2 stale |
| TUDOR INVESTMENT CORP ET AL trimmed | 79,927 | $2M | 0.2% | 2025-Q1 stale |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 129,166 | $2M | 0.2% | 2025-Q2 stale |
| Olstein Capital Management, L.P. trimmed | 123,000 | $2M | 0.2% | 2025-Q4 stale |
| AXA S.A. | 117,887 | $1M | 0.2% | 2025-Q2 stale |
| IEQ CAPITAL, LLC added | 110,928 | $1M | 0.2% | 2025-Q4 stale |
| Expect Equity LLC | 92,105 | $1M | 0.1% | 2025-Q3 stale |
| HRT FINANCIAL LP added | 102,921 | $1M | 0.1% | 2025-Q4 stale |
| Quantbot Technologies LP added | 91,713 | $1M | 0.1% | 2025-Q2 stale |
| Villanova Investment Management Co LLC trimmed | 82,827 | $1M | 0.1% | 2025-Q4 stale |
| Alaska Permanent Fund Corp | 53,312 | $874K | 0.1% | 2025-Q1 stale |
| WINTON GROUP Ltd trimmed | 68,867 | $855K | 0.1% | 2025-Q4 stale |
| NORGES BANK trimmed | 45,322 | $824K | 0.1% | 2025-Q3 stale |
| COMERICA BANK added | 65,946 | $819K | 0.1% | 2025-Q4 stale |
| WEDGE CAPITAL MANAGEMENT L L P/NC trimmed | 62,675 | $778K | 0.1% | 2025-Q4 stale |
| Corebridge Financial, Inc. trimmed | 35,283 | $776K | 0.1% | 2025-Q1 stale |
| Federation des caisses Desjardins du Quebec | 35,061 | $771K | 0.1% | 2025-Q1 stale |
| Squarepoint Ops LLC added | 62,372 | $765K | 0.1% | 2025-Q2 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.
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.