Who owns IRMD (IRMD)
Which tracked institutional funds hold IRMD, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See IRMD 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.
How the tape is positioned
41 tracked funds added or opened IRMD while 35 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
IRMD’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 IRMD more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in IRMD 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 226 tracked filers holding IRMD, 119 increased or opened the position and 93 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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 IRMD 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 13
- VANGUARD CAPITAL MANAGEMENT LLC$35M
- VANGUARD PORTFOLIO MANAGEMENT LLC$12M
- VANGUARD FIDUCIARY TRUST CO$5M
- Curi Capital, LLC$2M
- D. E. Shaw & Co., Inc.$2M
- ExodusPoint Capital Management, LP$1M
Full exits 6
- VANGUARD GROUP INC$48M
- TWO SIGMA ADVISERS, LP$4M
- RFG Advisory, LLC$2M
- Balyasny Asset Management L.P.$632K
- Verition Fund Management LLC$595K
- Baader Bank Aktiengesellschaft$595K
Largest adds
- T. Rowe Price Investment Management, Inc.$19M
- TWO SIGMA INVESTMENTS, LP$10M
- Nuveen, LLC$6M
- Davidson Capital Management Inc.$5M
- TUDOR INVESTMENT CORP ET AL$4M
- MILLENNIUM MANAGEMENT LLC$4M
Largest trims
- Nine Ten Capital Management LLC$9M
- Copeland Capital Management, LLC$6M
- BlackRock, Inc.$4M
- ISTHMUS PARTNERS, LLC$2M
- CITADEL ADVISORS LLC$2M
- RAYMOND JAMES FINANCIAL INC$2M
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 | 967,787 | $93M | 12.2% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 440,712 | $42M | 5.5% | 2026-Q1 |
| Copeland Capital Management, LLC trimmed | 359,325 | $35M | 4.5% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 358,620 | $35M | 4.5% | 2026-Q1 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC added | 349,316 | $34M | 4.4% | 2026-Q1 |
| Nine Ten Capital Management LLC trimmed | 334,488 | $32M | 4.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 286,563 | $28M | 3.6% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. added | 256,697 | $25M | 3.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 226,146 | $22M | 2.8% | 2026-Q1 |
| STATE STREET CORP added | 204,528 | $20M | 2.6% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 197,945 | $19M | 2.5% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 165,669 | $16M | 2.1% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC added | 151,837 | $15M | 1.9% | 2026-Q1 |
| MORGAN STANLEY added | 149,839 | $14M | 1.9% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 123,636 | $12M | 1.6% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 122,425 | $12M | 1.5% | 2026-Q1 |
| Ranger Investment Management, L.P. trimmed | 111,085 | $11M | 1.4% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 99,498 | $10M | 1.3% | 2026-Q1 |
| ALGERT GLOBAL LLC added | 88,056 | $8M | 1.1% | 2026-Q1 |
| Nuveen, LLC added | 86,129 | $8M | 1.1% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 83,449 | $8M | 1.1% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 79,877 | $8M | 1.0% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 75,460 | $7M | 1.0% | 2026-Q1 |
| SEI INVESTMENTS CO added | 74,304 | $7M | 0.9% | 2026-Q1 |
| SG Americas Securities, LLC added | 73,561 | $7M | 0.9% | 2026-Q1 |
| Bridge City Capital, LLC added | 72,573 | $7M | 0.9% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 71,836 | $7M | 0.9% | 2026-Q1 |
| FMR LLC added | 67,069 | $6M | 0.8% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 65,440 | $6M | 0.8% | 2026-Q1 |
| Uniplan Investment Counsel, Inc. trimmed | 62,141 | $6M | 0.8% | 2026-Q1 |
| SHAKER INVESTMENTS LLC/OH trimmed | 60,040 | $6M | 0.8% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 56,046 | $5M | 0.7% | 2026-Q1 |
| Davidson Capital Management Inc. added | 55,022 | $5M | 0.7% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 51,992 | $5M | 0.7% | 2026-Q1 |
| Informed Momentum Co LLC trimmed | 49,995 | $5M | 0.6% | 2026-Q1 |
| LAZARD ASSET MANAGEMENT LLC added | 48,914 | $5M | 0.6% | 2026-Q1 |
| HRT FINANCIAL LP added | 47,537 | $5M | 0.6% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 40,509 | $4M | 0.5% | 2026-Q1 |
| Ballast Asset Management, LP added | 37,107 | $4M | 0.5% | 2026-Q1 |
| Liontrust Investment Partners LLP | 36,471 | $4M | 0.5% | 2026-Q1 |
| RICE HALL JAMES & ASSOCIATES, LLC trimmed | 36,289 | $3M | 0.5% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC added | 36,165 | $3M | 0.5% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 32,504 | $3M | 0.4% | 2026-Q1 |
| Aristides Capital LLC added | 30,083 | $3M | 0.4% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 29,808 | $3M | 0.4% | 2026-Q1 |
| OAK RIDGE INVESTMENTS LLC trimmed | 29,429 | $3M | 0.4% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 29,617 | $3M | 0.4% | 2026-Q1 |
| Camarda Financial Advisors, LLC added | 28,990 | $3M | 0.4% | 2026-Q1 |
| STIFEL FINANCIAL CORP added | 28,832 | $3M | 0.4% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 27,981 | $3M | 0.4% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 26,082 | $3M | 0.3% | 2026-Q1 |
| ISTHMUS PARTNERS, LLC trimmed | 25,693 | $2M | 0.3% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 25,646 | $2M | 0.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 24,880 | $2M | 0.3% | 2026-Q1 |
| Voleon Capital Management LP added | 24,212 | $2M | 0.3% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC trimmed | 21,863 | $2M | 0.3% | 2026-Q1 |
| CREDIT AGRICOLE S A | 21,698 | $2M | 0.3% | 2026-Q1 |
| Conestoga Capital Advisors, LLC | 21,215 | $2M | 0.3% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 20,572 | $2M | 0.3% | 2026-Q1 |
| POLEN CAPITAL MANAGEMENT LLC trimmed | 20,744 | $2M | 0.3% | 2026-Q1 |
| HighTower Advisors, LLC added | 20,441 | $2M | 0.3% | 2026-Q1 |
| JOHNSON INVESTMENT COUNSEL INC trimmed | 20,439 | $2M | 0.3% | 2026-Q1 |
| Invesco Ltd. trimmed | 18,662 | $2M | 0.2% | 2026-Q1 |
| Curi Capital, LLC new | 18,495 | $2M | 0.2% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 18,043 | $2M | 0.2% | 2026-Q1 |
| ALBERT D MASON INC added | 17,171 | $2M | 0.2% | 2026-Q1 |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | 17,000 | $2M | 0.2% | 2026-Q1 |
| Swiss National Bank | 16,300 | $2M | 0.2% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND | 15,888 | $2M | 0.2% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 15,662 | $2M | 0.2% | 2026-Q1 |
| GLOBEFLEX CAPITAL L P | 15,546 | $1M | 0.2% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 15,445 | $1M | 0.2% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 15,423 | $1M | 0.2% | 2026-Q1 |
| HSBC HOLDINGS PLC trimmed | 15,357 | $1M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 15,125 | $1M | 0.2% | 2026-Q1 |
| BARCLAYS PLC trimmed | 14,981 | $1M | 0.2% | 2026-Q1 |
| UBS Group AG trimmed | 14,642 | $1M | 0.2% | 2026-Q1 |
| TEACHER RETIREMENT SYSTEM OF TEXAS trimmed | 14,613 | $1M | 0.2% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 14,319 | $1M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 13,503 | $1M | 0.2% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 13,568 | $1M | 0.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 13,355 | $1M | 0.2% | 2026-Q1 |
| Jump Financial, LLC trimmed | 12,631 | $1M | 0.2% | 2026-Q1 |
| MARTINGALE ASSET MANAGEMENT L P trimmed | 12,230 | $1M | 0.2% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 11,551 | $1M | 0.1% | 2026-Q1 |
| Ellsworth Advisors, LLC trimmed | 11,151 | $1M | 0.1% | 2026-Q1 |
| PDT Partners, LLC added | 10,533 | $1M | 0.1% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 10,207 | $983K | 0.1% | 2026-Q1 |
| Vident Advisory, LLC new | 9,856 | $949K | 0.1% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 9,732 | $937K | 0.1% | 2026-Q1 |
| Quantbot Technologies LP added | 8,818 | $849K | 0.1% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 8,684 | $836K | 0.1% | 2026-Q1 |
| Calamos Advisors LLC trimmed | 8,546 | $823K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 495,768 | $48M | 6.3% | 2025-Q4 stale |
| Roubaix Capital, LLC added | 71,497 | $4M | 0.6% | 2025-Q2 stale |
| TWO SIGMA ADVISERS, LP added | 42,400 | $4M | 0.5% | 2025-Q4 stale |
| RFG Advisory, LLC new | 16,384 | $2M | 0.2% | 2025-Q4 stale |
| BOSUN ASSET MANAGEMENT, LLC added | 24,889 | $1M | 0.2% | 2025-Q2 stale |
| Grandeur Peak Global Advisors, LLC trimmed | 15,036 | $1M | 0.1% | 2025-Q3 stale |
| Allspring Global Investments Holdings, LLC trimmed | 20,227 | $1M | 0.1% | 2025-Q1 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.