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Institutional Ownership · SEC Form 13F

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.

226
Institutional holders
7,636,544
Shares held (tracked funds)
59.7%
Of shares outstanding

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).

FundSharesReported value% of valueQuarter
BlackRock, Inc. trimmed967,787$93M12.2%2026-Q1
RENAISSANCE TECHNOLOGIES LLC trimmed440,712$42M5.5%2026-Q1
Copeland Capital Management, LLC trimmed359,325$35M4.5%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new358,620$35M4.5%2026-Q1
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC added349,316$34M4.4%2026-Q1
Nine Ten Capital Management LLC trimmed334,488$32M4.2%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added286,563$28M3.6%2026-Q1
T. Rowe Price Investment Management, Inc. added256,697$25M3.2%2026-Q1
DIMENSIONAL FUND ADVISORS LP added226,146$22M2.8%2026-Q1
STATE STREET CORP added204,528$20M2.6%2026-Q1
GOLDMAN SACHS GROUP INC trimmed197,945$19M2.5%2026-Q1
TWO SIGMA INVESTMENTS, LP added165,669$16M2.1%2026-Q1
ACADIAN ASSET MANAGEMENT LLC added151,837$15M1.9%2026-Q1
MORGAN STANLEY added149,839$14M1.9%2026-Q1
NORTHERN TRUST CORP trimmed123,636$12M1.6%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new122,425$12M1.5%2026-Q1
Ranger Investment Management, L.P. trimmed111,085$11M1.4%2026-Q1
Russell Investments Group, Ltd. trimmed99,498$10M1.3%2026-Q1
ALGERT GLOBAL LLC added88,056$8M1.1%2026-Q1
Nuveen, LLC added86,129$8M1.1%2026-Q1
Qube Research & Technologies Ltd added83,449$8M1.1%2026-Q1
Bank of New York Mellon Corp trimmed79,877$8M1.0%2026-Q1
ENVESTNET ASSET MANAGEMENT INC added75,460$7M1.0%2026-Q1
SEI INVESTMENTS CO added74,304$7M0.9%2026-Q1
SG Americas Securities, LLC added73,561$7M0.9%2026-Q1
Bridge City Capital, LLC added72,573$7M0.9%2026-Q1
TUDOR INVESTMENT CORP ET AL added71,836$7M0.9%2026-Q1
FMR LLC added67,069$6M0.8%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed65,440$6M0.8%2026-Q1
Uniplan Investment Counsel, Inc. trimmed62,141$6M0.8%2026-Q1
SHAKER INVESTMENTS LLC/OH trimmed60,040$6M0.8%2026-Q1
VANGUARD FIDUCIARY TRUST CO new56,046$5M0.7%2026-Q1
Davidson Capital Management Inc. added55,022$5M0.7%2026-Q1
JANE STREET GROUP, LLC added51,992$5M0.7%2026-Q1
Informed Momentum Co LLC trimmed49,995$5M0.6%2026-Q1
LAZARD ASSET MANAGEMENT LLC added48,914$5M0.6%2026-Q1
HRT FINANCIAL LP added47,537$5M0.6%2026-Q1
MILLENNIUM MANAGEMENT LLC added40,509$4M0.5%2026-Q1
Ballast Asset Management, LP added37,107$4M0.5%2026-Q1
Liontrust Investment Partners LLP36,471$4M0.5%2026-Q1
RICE HALL JAMES & ASSOCIATES, LLC trimmed36,289$3M0.5%2026-Q1
PRUDENTIAL FINANCIAL INC added36,165$3M0.5%2026-Q1
CITADEL ADVISORS LLC trimmed32,504$3M0.4%2026-Q1
Aristides Capital LLC added30,083$3M0.4%2026-Q1
ROYAL BANK OF CANADA trimmed29,808$3M0.4%2026-Q1
OAK RIDGE INVESTMENTS LLC trimmed29,429$3M0.4%2026-Q1
JPMORGAN CHASE & CO added29,617$3M0.4%2026-Q1
Camarda Financial Advisors, LLC added28,990$3M0.4%2026-Q1
STIFEL FINANCIAL CORP added28,832$3M0.4%2026-Q1
SUSQUEHANNA INTERNATIONAL GROUP, LLP added27,981$3M0.4%2026-Q1
VICTORY CAPITAL MANAGEMENT INC added26,082$3M0.3%2026-Q1
ISTHMUS PARTNERS, LLC trimmed25,693$2M0.3%2026-Q1
BANK OF AMERICA CORP /DE/ trimmed25,646$2M0.3%2026-Q1
WELLS FARGO & COMPANY/MN added24,880$2M0.3%2026-Q1
Voleon Capital Management LP added24,212$2M0.3%2026-Q1
AMERICAN CENTURY COMPANIES INC trimmed21,863$2M0.3%2026-Q1
CREDIT AGRICOLE S A21,698$2M0.3%2026-Q1
Conestoga Capital Advisors, LLC21,215$2M0.3%2026-Q1
ALLIANCEBERNSTEIN L.P. added20,572$2M0.3%2026-Q1
POLEN CAPITAL MANAGEMENT LLC trimmed20,744$2M0.3%2026-Q1
HighTower Advisors, LLC added20,441$2M0.3%2026-Q1
JOHNSON INVESTMENT COUNSEL INC trimmed20,439$2M0.3%2026-Q1
Invesco Ltd. trimmed18,662$2M0.2%2026-Q1
Curi Capital, LLC new18,495$2M0.2%2026-Q1
D. E. Shaw & Co., Inc. added18,043$2M0.2%2026-Q1
ALBERT D MASON INC added17,171$2M0.2%2026-Q1
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.17,000$2M0.2%2026-Q1
Swiss National Bank16,300$2M0.2%2026-Q1
NEW YORK STATE COMMON RETIREMENT FUND15,888$2M0.2%2026-Q1
AQR CAPITAL MANAGEMENT LLC trimmed15,662$2M0.2%2026-Q1
GLOBEFLEX CAPITAL L P15,546$1M0.2%2026-Q1
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added15,445$1M0.2%2026-Q1
ExodusPoint Capital Management, LP added15,423$1M0.2%2026-Q1
HSBC HOLDINGS PLC trimmed15,357$1M0.2%2026-Q1
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added15,125$1M0.2%2026-Q1
BARCLAYS PLC trimmed14,981$1M0.2%2026-Q1
UBS Group AG trimmed14,642$1M0.2%2026-Q1
TEACHER RETIREMENT SYSTEM OF TEXAS trimmed14,613$1M0.2%2026-Q1
Point72 Asset Management, L.P. added14,319$1M0.2%2026-Q1
RHUMBLINE ADVISERS trimmed13,503$1M0.2%2026-Q1
RAYMOND JAMES FINANCIAL INC trimmed13,568$1M0.2%2026-Q1
BNP PARIBAS FINANCIAL MARKETS added13,355$1M0.2%2026-Q1
Jump Financial, LLC trimmed12,631$1M0.2%2026-Q1
MARTINGALE ASSET MANAGEMENT L P trimmed12,230$1M0.2%2026-Q1
FRANKLIN RESOURCES INC trimmed11,551$1M0.1%2026-Q1
Ellsworth Advisors, LLC trimmed11,151$1M0.1%2026-Q1
PDT Partners, LLC added10,533$1M0.1%2026-Q1
VOYA INVESTMENT MANAGEMENT LLC trimmed10,207$983K0.1%2026-Q1
Vident Advisory, LLC new9,856$949K0.1%2026-Q1
PRINCIPAL FINANCIAL GROUP INC added9,732$937K0.1%2026-Q1
Quantbot Technologies LP added8,818$849K0.1%2026-Q1
JACOBS LEVY EQUITY MANAGEMENT, INC8,684$836K0.1%2026-Q1
Calamos Advisors LLC trimmed8,546$823K0.1%2026-Q1
VANGUARD GROUP INC trimmed495,768$48M6.3%2025-Q4 stale
Roubaix Capital, LLC added71,497$4M0.6%2025-Q2 stale
TWO SIGMA ADVISERS, LP added42,400$4M0.5%2025-Q4 stale
RFG Advisory, LLC new16,384$2M0.2%2025-Q4 stale
BOSUN ASSET MANAGEMENT, LLC added24,889$1M0.2%2025-Q2 stale
Grandeur Peak Global Advisors, LLC trimmed15,036$1M0.1%2025-Q3 stale
Allspring Global Investments Holdings, LLC trimmed20,227$1M0.1%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.

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