What does CUSIP 46266A109 represent in this 13F holders report?

CUSIP 46266A109 is the security identifier for IRMD - IRADIMED CORP - Common Stock used to aggregate holder disclosures.

How many institutions held IRMD - IRADIMED CORP - Common Stock in Q1 2026?

228 institutional investors reported IRMD - IRADIMED CORP - Common Stock for Q1 2026. Use the holders table for investor-level position and value details.

IRADIMED CORP - Common Stock (IRMD)

CUSIP: 46266A109

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class: Equity / Common Stock
Total 13F shares: 7,628,342
Total 13F value: $734,203,937
Share change: +207,140
Put/Call ratio: 76%
SEC-reported price per share: $96.26
Number of holders: 228
Value change: +$19,787,737
Number of buys: 112
Number of sells: 91
Shares outstanding: 12,796,966

Security key

46266A109

Report period

Q1 2026

Institutions

228

Top holders

IRMD full security history Ownership snapshot Full 13F holder table IRADIMED CORP SEC filings IRADIMED CORP company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of IRMD - IRADIMED CORP - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Roger E. Susi

Disclosed value leader

Roger E. Susi

Comparable rows

15/15

Latest evidence

31 Mar 2026

13D/G 13F Lead comparable stake: 35% 13D/G row: Roger E. Susi Showing 1-6 of 15 holder rows.

Quick read

Roger E. Susi leads the comparable SEC ownership view at 35%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Roger E. Susi's linked filing trail.

Comparable ownership Top 5

Roger E. Susi 35%

Nine Ten Capital Management LLC 3.4%

BlackRock, Inc. 7.8%

VANGUARD GROUP INC 4.4%

RENAISSANCE TECHNOLOGIES LLC 3.6%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Roger E. Susi	13D/G 13D/G	35%	$428,400,317 4,450,450 shares	$0	31 Mar 2026
Nine Ten Capital Management LLC	13D/G 13F Nine Ten Capital Management · Company 13D/G 13F	3.4%	$42,119,289 428,477 shares	-$46,933,237	31 Dec 2025
BlackRock, Inc.	13F Company 13F	7.8%	$97,474,463 1,001,999 shares	—	31 Dec 2025
VANGUARD GROUP INC	13F Company 13F	4.4%	$54,481,469 560,048 shares	—	31 Dec 2025
RENAISSANCE TECHNOLOGIES LLC	13F Company 13F	3.6%	$44,399,759 456,412 shares	—	31 Dec 2025
Copeland Capital Management, LLC	13F Company 13F	3.2%	$40,132,980 412,550 shares	—	31 Dec 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

228

7,628,342

Rows available

228

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q1 2026 Across Filers

Q1 2026 holders

228

Q1 2026 holders

228

Holder diff

Investor	Q1 2026 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q1 2026 value	Q1 2026 value	Value change	Value Chg %