Ticker · CUSIP 46266A109

IRMD

IRADIMED CORP

Healthcare·Medical Devices

···Share

Holders (tracked)

Combined shares

643,116

Combined value

$62.10M

Last close

—

Quarter

2025Q4

Tracked holders · last 8 quarters

-1 vs previous quarter over the last 8.

SEC event timeline

22 events

Susi Roger E. · CEO, President, Chairman
2026-04-14
Sold $197.4K @ $93.71
Insider sell
Susi Roger E. · CEO, President, Chairman
2026-04-14
Sold $37.2K @ $94.55
Insider sell
Susi Roger E. · CEO, President, Chairman
2026-04-13
Sold $169.6K @ $91.84
Insider sell
Susi Roger E. · CEO, President, Chairman
2026-04-13
Sold $237.9K @ $92.79
Insider sell
Susi Roger E. · CEO, President, Chairman
2026-04-13
Sold $55.0K @ $93.45
Insider sell
Ken Griffin (Citadel Advisors) added2026-02-17
+22,031 shares · 2025Q4
13F
D.E. Shaw & Co. exited2026-02-17
−10,256 shares · 2025Q4
13F
Two Sigma Investments added2026-02-17
+11,267 shares · 2025Q4
13F
Izzy Englander (Millennium Mgmt) trimmed2026-02-17
−94,982 shares · 2025Q4
13F
Steve Cohen (Point72) trimmed2026-02-17
−228 shares · 2025Q4
13F
T. Rowe Price added2026-02-17
+458 shares · 2025Q4
13F
Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+31,177 shares · 2025Q4
13F
AQR Capital Management added2026-02-17
+2,524 shares · 2025Q4
13F
Renaissance Technologies trimmed2026-02-12
−32,350 shares · 2025Q4
13F
Izzy Englander (Millennium Mgmt) trimmed2025-11-14
−13,444 shares · 2025Q3
13F
Steve Cohen (Point72) opened position2025-11-14
+11,210 shares · 2025Q3
13F
Two Sigma Investments added2025-11-14
+13,417 shares · 2025Q3
13F
T. Rowe Price added2025-11-14
+476 shares · 2025Q3
13F
D.E. Shaw & Co. added2025-11-14
+2,393 shares · 2025Q3
13F
AQR Capital Management added2025-11-14
+1,782 shares · 2025Q3
13F
Renaissance Technologies trimmed2025-11-13
−3,050 shares · 2025Q3
13F
Norges Bank (Norway SWF) exited2025-11-12
−16,500 shares · 2024Q3
13F

Insider activity

Last 30 days

Net (open-market)

−$697.2K

Buys

0 · $0

Sells

5 · $697.2K

Unique insiders

Date	Insider	Code	Shares	Price	Value
04-14	Susi Roger E. CEO, President, Chairman · Officer, Director, 10%+	S	2,107	$93.71	$197.4K
04-14	Susi Roger E. CEO, President, Chairman · Officer, Director, 10%+	S	393	$94.55	$37.2K
04-13	Susi Roger E. CEO, President, Chairman · Officer, Director, 10%+	S	1,847	$91.84	$169.6K
04-13	Susi Roger E. CEO, President, Chairman · Officer, Director, 10%+	S	2,564	$92.79	$237.9K
04-13	Susi Roger E. CEO, President, Chairman · Officer, Director, 10%+	S	589	$93.45	$55.0K

View full insider history for IRMD →

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.

New positions1

Paul Tudor Jones (Tudor Investment)
+31,177
$3.0M

Added to4

Ken Griffin (Citadel Advisors)
+22,031
$2.1M
Two Sigma Investments
+11,267
$1.1M
AQR Capital Management
+2,524
$246K
T. Rowe Price
+458
$45

Trimmed3

Izzy Englander (Millennium Mgmt)
−94,982
$9.2M
Renaissance Technologies
−32,350
$3.1M
Steve Cohen (Point72)
−228
$22K

Exited1

D.E. Shaw & Co.
−10,256
$730K

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	6	1,138,997	$51.1M	—
2022Q2	4	1,148,857	$39.0M	-2
2022Q3	4	1,062,516	$32K	—
2022Q4	4	1,094,873	$12.5M	—
2023Q1	6	1,143,233	$20.0M	+2
2023Q2	8	1,223,077	$30.6M	+2
2023Q3	7	1,356,267	$34.7M	-1
2023Q4	9	1,401,828	$39.0M	+2
2024Q1	7	1,396,439	$36.2M	-2
2024Q2	11	1,559,149	$68.5M	+4
2024Q3	6	709,468	$35.7M	-5
2024Q4	9	641,250	$35.3M	+3
2025Q1	6	639,314	$33.6M	-3
2025Q2	7	670,371	$39.9M	+1
2025Q3	9	718,775	$50.8M	+2
2025Q4	8	643,116	$62.1M	-1

Who owns IRMD

8 super-investors · 2025Q4

Tracked stake

643.1K

Combined value

$62M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New1Added4Trim3

#	Manager	Shares	Value	% of book	Last action
1	Renaissance Technologies	456.4K	$44M	0.1%	Trim−32.4K
2	Two Sigma Investments	64.9K	$6M	0.0%	Added+11.3K
3	Ken Griffin Citadel Advisors	55.8K	$5M	0.0%	Added+22.0K
4	Paul Tudor Jones Tudor Investment	31.2K	$3M	0.0%	New+31.2K
5	AQR Capital Management	15.9K	$2M	0.0%	Added+2.5K
6	Steve Cohen Point72	11.0K	$1M	0.0%	Trim−228
7	Izzy Englander Millennium Mgmt	3.2K	$311K	0.0%	Trim−95.0K
8	T. Rowe Price	4.8K	$466	0.0%	Added+458

Recent moves

20 transactions

ADDAQR Capital Management
+2,524 · 2025Q4
SOLDD.E. Shaw & Co.
−10,256 · 2025Q4
ADDT. Rowe Price
+458 · 2025Q4
ADDKen Griffin (Citadel Advisors)
+22,031 · 2025Q4
TRIMIzzy Englander (Millennium Mgmt)
−94,982 · 2025Q4
TRIMSteve Cohen (Point72)
−228 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+31,177 · 2025Q4
ADDTwo Sigma Investments
+11,267 · 2025Q4
TRIMRenaissance Technologies
−32,350 · 2025Q4
ADDTwo Sigma Investments
+13,417 · 2025Q3
NEWSteve Cohen (Point72)
+11,210 · 2025Q3
ADDAQR Capital Management
+1,782 · 2025Q3
ADDD.E. Shaw & Co.
+2,393 · 2025Q3
TRIMIzzy Englander (Millennium Mgmt)
−13,444 · 2025Q3
ADDT. Rowe Price
+476 · 2025Q3
TRIMRenaissance Technologies
−3,050 · 2025Q3
SOLDNorges Bank (Norway SWF)
−16,500 · 2024Q3
ADDTwo Sigma Investments
+21,223 · 2025Q2
TRIMD.E. Shaw & Co.
−1,289 · 2025Q2
ADDIzzy Englander (Millennium Mgmt)
+41,481 · 2025Q2

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