LRMR — LARIMAR THERAPEUTICS INC

Ownership history in CITADEL ADVISORS LLC  ·  43 quarters on record

AI Ownership Summary

CITADEL ADVISORS LLC reported LARIMAR THERAPEUTICS INC (LRMR) in 43 quarterly 13F filings from 2023 Q3 through 2025 Q4. The latest visible filing shows LRMR at 0.00% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this LRMR ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was CITADEL ADVISORS LLC's position in LARIMAR THERAPEUTICS INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

LRMR was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.0% in 2024 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q3 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

LRMR stock page CITADEL ADVISORS LLC fund profile CITADEL ADVISORS LLC full holdings
How CITADEL ADVISORS LLC held LRMR — position size vs. price
% of Fund (quarterly)    LRMR price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 28 quarters  ▾
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 ADDED 1,366,750 +1,349,250 +7710.0% 0.00% $5.2M 2026-02-14 (Est.) $3.15
2025 Q4 REDUCED 17,500 -1,460,006 -98.8% 0.00% $67K 2026-02-14 (Est.) $3.15
2025 Q3 ADDED 1,477,506 +1,377,906 +1383.4% 0.00% $4.8M 2025-11-14 $3.38
2025 Q3 REDUCED 99,600 -188,600 -65.4% 0.00% $322K 2025-11-14 $3.38
2025 Q3 REDUCED 288,200 -1,048,055 -78.4% 0.00% $931K 2025-11-14 $3.38
2025 Q2 ADDED 1,336,255 +1,276,255 +2127.1% 0.00% $3.9M 2025-08-14 $4.26
2025 Q2 ADDED 60,000 +9,900 +19.8% 0.00% $173K 2025-08-14 $4.26
2025 Q2 REDUCED 50,100 -384,186 -88.5% 0.00% $145K 2025-08-14 $4.26
2025 Q1 ADDED 434,286 +419,086 +2757.1% 0.00% $934K 2025-05-15 $1.87
2025 Q1 REDUCED 15,200 -36,400 -70.5% 0.00% $33K 2025-05-15 $1.87
2025 Q1 ADDED 51,600 +20,800 +67.5% 0.00% $111K 2025-05-15 $1.87
2024 Q4 ADDED 30,800 +3,600 +13.2% 0.00% $119K 2025-02-14 $3.34
2024 Q4 REDUCED 27,200 -11,607 -29.9% 0.00% $105K 2025-02-14 $3.34
2024 Q3 ADDED 38,807 +9,407 +32.0% 0.00% $254K 2024-11-14 $7.57
2024 Q3 ADDED 29,400 +5,300 +22.0% 0.00% $193K 2024-11-14 $7.57
2024 Q3 ADDED 24,100 +19,911 +475.3% 0.00% $158K 2024-11-14 $7.57
2024 Q2 ADDED 4,189 +1,889 +82.1% 0.00% $30K 2024-08-14 $7.57
2024 Q2 REDUCED 2,300 -34,200 -93.7% 0.00% $17K 2024-08-14 $7.57
2024 Q2 REDUCED 36,500 -1,127,759 -96.9% 0.00% $265K 2024-08-14 $7.57
2024 Q1 ADDED 1,164,259 +1,146,059 +6297.0% 0.00% $8.8M 2024-05-15 $7.87
2024 Q1 REDUCED 18,200 -90,500 -83.3% 0.00% $138K 2024-05-15 $7.87
2024 Q1 REDUCED 108,700 -573,659 -84.1% 0.00% $825K 2024-05-15 $7.87
2023 Q4 ADDED 682,359 +682,159 +341079.5% 0.00% $3.1M 2024-02-14 $11.96
2023 Q4 REDUCED 200 -2,100 -91.3% 0.00% $910 2024-02-14 $11.96
2023 Q4 REDUCED 2,300 -976,886 -99.8% 0.00% $10K 2024-02-14 $11.96
2023 Q3 ADDED 979,186 +978,486 +139783.7% 0.00% $3.9M 2023-11-14 $2.56
2023 Q3 REDUCED 700 -3,700 -84.1% 0.00% $3K 2023-11-14 $2.56
2023 Q3 REDUCED 4,400 -1,172,255 -99.6% 0.00% $17K 2023-11-14 $2.56
15 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding LRMR

As of 2025 Q4 — sorted by position size

Blue Owl Capital Holdings LP 3Y 1.95% AIGH Capital Management LLC 3Y 1.84% DEERFIELD MANAGEMENT COMPANY, L.P. 3Y 7Y 1.49% DAFNA Capital Management LLC 3Y 7Y 0.83% RTW INVESTMENTS, LP 3Y 7Y 0.12% EntryPoint Capital, LLC 0.08% Velan Capital Investment Management LP 3Y 0.07% Caitong International Asset Management Co., Ltd 0.07% ADAR1 Capital Management, LLC 0.05% Next Level Private LLC 3Y 0.04%

FAQ About CITADEL ADVISORS LLC and LRMR

These are the practical questions this page is built to answer before you even open the full history table.

How long has CITADEL ADVISORS LLC reported owning LRMR?

CITADEL ADVISORS LLC reported LRMR across 28 quarterly 13F filings, from 2023 Q3 through 2025 Q4.

What was the largest reported LRMR position in CITADEL ADVISORS LLC's portfolio?

The largest reported portfolio weight for LRMR was 0.00% in 2024 Q1.

What is the latest reported LRMR position on this page?

The most recent filing on this page is 2025 Q4, when CITADEL ADVISORS LLC reported 1,366,750 shares, equal to 0.00% of portfolio, with an estimated market value of $5.2M.

What does the chart on this LRMR ownership page compare?

The chart compares CITADEL ADVISORS LLC's quarterly LRMR portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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