Ticker · CUSIP 517125100

LRMR

LARIMAR THERAPEUTICS INC

Healthcare·Biotechnology

···Share

Holders (tracked)

Combined shares

9,612,749

Combined value

$36.63M

Last close

$4.80

Quarter

2025Q4

Price is +26.0% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$4.80+2.89 (+151.31%)H $5.95 · L $1.79 · Avg Vol 2.4M

Position opened

Tracked holders · last 8 quarters

-2 vs previous quarter over the last 8.

SEC event timeline

14 events

Ken Griffin (Citadel Advisors) trimmed2026-02-17
−110,756 shares · 2025Q4
Position
D.E. Shaw & Co. opened position2026-02-17
+437,399 shares · 2025Q4
Position
Two Sigma Investments added2026-02-17
+160,454 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) added2026-02-17
+309,533 shares · 2025Q4
Position
Steve Cohen (Point72) added2026-02-17
+237,162 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+6,038 shares · 2025Q4
Position
AQR Capital Management trimmed2026-02-17
−60,152 shares · 2025Q4
Position
Renaissance Technologies trimmed2026-02-12
−561,376 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+1,241,642 shares · 2025Q3
Position
AQR Capital Management added2025-11-14
+133,915 shares · 2025Q3
Position
Two Sigma Investments trimmed2025-11-14
−768,882 shares · 2025Q3
Position
Steve Cohen (Point72) opened position2025-11-14
+1,223,866 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+1,669 shares · 2025Q3
Position
Renaissance Technologies added2025-11-13
+296,900 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for LRMR →

Follow-the-investor returns

If you'd copied each holder of LRMR…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
AQR Capital Management	2024Q2	$2.97	+61.9%	$2.4M
Two Sigma Investments	2020Q2	$3.46	+38.8%	$1.4M
Steve Cohen (Point72)	2020Q2	$3.65	+31.4%	$7.0M
Izzy Englander (Millennium Mgmt)	2020Q2	$3.80	+26.4%	$25.0M
Ken Griffin (Citadel Advisors)	2021Q2	$3.80	+26.2%	$6.6M
Ken Griffin (Citadel Advisors)	2021Q2	$3.80	+26.2%	$6.6M
Renaissance Technologies	2020Q2	$3.89	+23.4%	$1.4M
D.E. Shaw & Co.	2024Q3	$3.91	+22.7%	$2.1M
T. Rowe Price	2024Q2	$5.20	-7.6%	$139K

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions1

D.E. Shaw & Co.
+437,399
$1.7M

Added to4

Izzy Englander (Millennium Mgmt)
+309,533
$1.2M
Steve Cohen (Point72)
+237,162
$904K
Two Sigma Investments
+160,454
$611K
T. Rowe Price
+6,038
$23

Trimmed3

Renaissance Technologies
−561,376
$2.1M
Ken Griffin (Citadel Advisors)
−110,756
$422K
AQR Capital Management
−60,152
$229K

Exited0

—

Institutional ownership over time

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

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	5	477,707	$1.9M	—
2022Q2	5	464,238	$911K	—
2022Q3	6	1,162,517	$3.7M	+1
2022Q4	7	1,880,551	$7.8M	+1
2023Q1	7	2,278,614	$10.3M	—
2023Q2	8	4,036,669	$12.6M	+1
2023Q3	7	3,255,359	$12.9M	-1
2023Q4	7	3,084,375	$14.0M	—
2024Q1	8	5,564,605	$42.2M	+1
2024Q2	11	5,298,523	$38.4M	+3
2024Q3	11	1,687,155	$11.1M	—
2024Q4	6	927,729	$3.6M	-5
2025Q1	8	2,672,350	$5.7M	+2
2025Q2	8	7,016,686	$20.3M	—
2025Q3	11	9,744,747	$31.5M	+3
2025Q4	9	9,612,749	$36.6M	-2

Who owns LRMR

9 super-investors · 2025Q4

Tracked stake

9.61M

Combined value

$37M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New1Added4Trim4

#	Manager	Shares	Value	% of book	Last action
1	Izzy Englander Millennium Mgmt	5.21M	$20M	0.0%	Added+309.5K
2	Steve Cohen Point72	1.46M	$6M	0.0%	Added+237.2K
3	Ken Griffin Citadel Advisors	1.37M	$5M	0.0%	Trim−110.8K
4	AQR Capital Management	502.3K	$2M	0.0%	Trim−60.2K
5	D.E. Shaw & Co.	437.4K	$2M	0.0%	New+437.4K
6	Renaissance Technologies	297.3K	$1M	0.0%	Trim−561.4K
7	Two Sigma Investments	295.2K	$1M	0.0%	Added+160.5K
8	T. Rowe Price	29.0K	$111K	0.0%	Added+6.0K
9	Ken Griffin Citadel Advisors	17.5K	$67K	0.0%	Trim−110.8K

Recent moves

20 transactions

NEWD.E. Shaw & Co.
+437,399 · 2025Q4
ADDIzzy Englander (Millennium Mgmt)
+309,533 · 2025Q4
ADDT. Rowe Price
+6,038 · 2025Q4
ADDSteve Cohen (Point72)
+237,162 · 2025Q4
ADDTwo Sigma Investments
+160,454 · 2025Q4
TRIMKen Griffin (Citadel Advisors)
−110,756 · 2025Q4
TRIMAQR Capital Management
−60,152 · 2025Q4
TRIMRenaissance Technologies
−561,376 · 2025Q4
ADDT. Rowe Price
+1,669 · 2025Q3
ADDIzzy Englander (Millennium Mgmt)
+1,241,642 · 2025Q3
NEWSteve Cohen (Point72)
+1,223,866 · 2025Q3
ADDAQR Capital Management
+133,915 · 2025Q3
TRIMTwo Sigma Investments
−768,882 · 2025Q3
ADDRenaissance Technologies
+296,900 · 2025Q3
ADDIzzy Englander (Millennium Mgmt)
+2,982,177 · 2025Q2
ADDAQR Capital Management
+316,262 · 2025Q2
ADDTwo Sigma Investments
+508,866 · 2025Q2
ADDT. Rowe Price
+4,991 · 2025Q2
TRIMRenaissance Technologies
−413,229 · 2025Q2
ADDIzzy Englander (Millennium Mgmt)
+418,065 · 2025Q1

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