Macrogenics Inc (MGNX) 13F Filings: Institutional Buyers & Sellers (Q2 2026)

MGNX ranks #4134 out of 37501 tracked stocks by institutional interest, inside the more closely watched half of our coverage.

MGNX is a disclosed holding of Jim Simons (Renaissance Technologies), one of the tracked superinvestors on AlphaSMO — it makes up 0.0% of that fund's own 13F portfolio.

123 institutions disclose a position in MGNX, but none treat it as a major bet — even Armistice Capital, LLC, its most concentrated holder, allocates just 0.3% of its own portfolio to it.

BlackRock has added to its MGNX position for two straight quarters, increasing it by $19.8M to reach $21.6M today.

Jane Street Group, LLC has trimmed its MGNX position for two straight quarters, cutting it by $1.6M while still holding $387.4K.

MGNX is up 1.2% today, and institutions have been net buyers of $33.9M this quarter — today's price move and the underlying institutional flow are pointing the same direction.

MGNX reported a net loss of $14.6M over the trailing twelve months.

• Not yet profitable — net loss of $14.6M over the trailing twelve months
• Revenue grew 11.7% year over year
• Net income improved year over year, from -$36.4M to -$14.6M
• Operating cash flow was negative, using $81.0M in cash
• Current ratio of 5.10x — enough short-term assets to cover short-term liabilities
• Liabilities run 3.62x equity — a highly leveraged balance sheet worth noting