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MACROGENICS INC

MGNX

Held by 2 specialist biotech funds

2 funds opened new positions. Short interest: 7.7% of float.

Score Holdings Short Interest Catalysts Insiders Research

Signal Score

3.0/10

2 funds opened new positions

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Data sourced from SEC EDGAR and ClinicalTrials.gov. Not investment advice.

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●●

No recent insider activity●●

No upcoming catalysts●●

Held by 2 specialist funds●●

See how each signal contributes— fund overlap, insider activity, catalyst timing, short interest (free trial)

Fund Holdings

EcoR1 Capital

Rock Springs Capital

2 quarters

Position Trend

May 15, 2025

$1.5M

1 fund

Aug 14, 2025

$1.9M

1 fund

Nov 14, 2025

0 funds

Feb 17, 2026

0 funds

-100% total institutional value over 4 quarters

Short Interest

Short Shares

3.98M

Change

-5.9%

Days to Cover

2.5

% of Float

7.7%

Settlement

Mar 13, 2026

Short interest over 2 periods

Catalysts

No catalysts tracked.

Activist Filings

SC 13G/ARA Capital Management0.0%Feb 14, 2025

SC 13G/ARA Capital Management6.5%Feb 14, 2024

SC 13GRA Capital Management6.1%Oct 30, 2023

SC 13G/ARTW Investments0.0%Feb 14, 2023

SC 13G/ARA Capital Management0.0%Aug 15, 2022

SC 13G/ARA Capital Management10.0%Feb 14, 2022

SC 13GRTW Investments6.5%Feb 14, 2022

SC 13GRA Capital Management7.8%Feb 16, 2021

Position Details

EcoR1 CapitalEXITFeb 17, 2026

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Insider Signals

No insider purchases or sales detected in the past 90 days.

Also Held by These Funds

APLS2 funds PCVX2 funds ZBIO2 funds IMNM2 funds JANX2 funds JAZZ2 funds BBIO2 funds TNGX2 funds

Research Links

Yahoo Finance →SEC EDGAR →ClinicalTrials.gov →

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MACROGENICS INC (MGNX) — Institutional Holders & Catalysts | BiotechEdge