Equibles

MGNX

Macrogenics Inc

Company with tickers: MGNX

CIK
1125345
CUSIP
556099109
Shares Outstanding
63,563,123
13F Activity (30d)
97 filings 95 filers
Holders: 109
Total Value: $125,320,776
Total Shares: 43,363,611
Showing 1–100 of 114 holdings by value · page 1 of 2

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 109 13F filers · Δ vs Dec 31, 2025
Top Holder
13.9%
Jun 2023 → Mar 2026 · range 13.9% – 21.4%
−2.0 pts
Top 5
39.1%
Jun 2023 → Mar 2026 · range 39.1% – 55.8%
−5.8 pts
Top 10
63.1%
Jun 2023 → Mar 2026 · range 63.1% – 73.8%
−1.9 pts
HHI
519
Jun 2023 → Mar 2026 · range 519 – 881
Broadly held −100

Quarterly Activity

vs Dec 31, 2025
New
32
Increased
29
Decreased
28
Sold Out
11
Unchanged
20
Holder count: +21
Institutional value: +94.7%
Shares held: +8.5%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega TWO SIGMA INVESTMENTS, LP +1,528,355 2,527,829
Mega MILLENNIUM MANAGEMENT LLC +819,877 2,794,357
Large MARSHALL WACE, LLP +740,963 2,025,526
Mega BANK OF AMERICA CORP /DE/ +564,094 2,401,814
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP +431,086 512,827

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega JANE STREET GROUP, LLC −646,414 608,509
Large JACOBS LEVY EQUITY MANAGEMENT, INC −459,914 441,143
Mid ARMISTICE CAPITAL, LLC −312,000 6,012,000
Large Universal- Beteiligungs- und Servicegesellschaft mbH −290,000 10,000
Mega CITADEL ADVISORS LLC −281,035 840,418

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 2,653,853 $7,669,635
Mid RA CAPITAL MANAGEMENT, L.P. 1,864,176 $5,387,468
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 1,208,775 $3,493,359
Small DIADEMA PARTNERS LP 600,000 $1,734,000
Mega VANGUARD FIDUCIARY TRUST CO 340,089 $982,857

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 4,226,941 $6,805,374
Large Jefferies Financial Group Inc. 1,841,172 $2,964,286
Large TWO SIGMA ADVISERS, LP 1,195,000 $1,923,950
Small Caitong International Asset Management Co., Ltd 1,464 $2,357
Mid Tower Research Capital LLC (TRC) 978 $1,574
Filter: New 32 Increased 29 Reduced 28 Sold out 11 Unchanged 20
Showing 100 of 114
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mid ARMISTICE CAPITAL, LLC $17,374,680 13.86% 6,012,000
Large RENAISSANCE TECHNOLOGIES LLC $8,564,685 6.83% 2,963,559
Mega MILLENNIUM MANAGEMENT LLC $8,075,691 6.44% 2,794,357
Mega VANGUARD CAPITAL MANAGEMENT LLC $7,669,635 6.12% 2,653,853
Large ACADIAN ASSET MANAGEMENT LLC $7,352,160 5.87% 2,544,000
Mega TWO SIGMA INVESTMENTS, LP $7,305,425 5.83% 2,527,829
Mega BANK OF AMERICA CORP /DE/ Bank $6,941,241 5.54% 2,401,814
Large MARSHALL WACE, LLP $5,853,769 4.67% 2,025,526
Mid RA CAPITAL MANAGEMENT, L.P. $5,387,468 4.30% 1,864,176
Large WASATCH ADVISORS LP $4,507,535 3.60% 1,559,701
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $3,493,359 2.79% 1,208,775
Mega BlackRock, Inc. $3,361,489 2.68% 1,163,146
Mega D. E. Shaw & Co., Inc. $3,058,844 2.44% 1,058,424
Large Connor, Clark & Lunn Investment Management Ltd. $2,506,349 2.00% 867,249
Mega CITADEL ADVISORS LLC $2,261,765 1.80% 782,618
Mega GEODE CAPITAL MANAGEMENT, LLC $2,015,257 1.61% 697,321
Mega JANE STREET GROUP, LLC $1,758,590 1.40% 608,509
Small DIADEMA PARTNERS LP $1,734,000 1.38% 600,000
Large MACKENZIE FINANCIAL CORP $1,726,607 1.38% 597,442
Mid Affinity Asset Advisors, LLC $1,445,000 1.15% 500,000
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,306,936 1.04% 452,227
Large JACOBS LEVY EQUITY MANAGEMENT, INC $1,274,903 1.02% 441,143
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $1,213,800 0.97% 420,000
Mid GSA CAPITAL PARTNERS LLP $1,097,179 0.88% 379,647
Mega VANGUARD FIDUCIARY TRUST CO Bank $982,857 0.78% 340,089
Large Walleye Capital LLC $968,915 0.77% 335,265
Mega UBS Group AG $855,688 0.68% 296,086
Mega STATE STREET CORP $848,755 0.68% 293,687
Mid Vestal Point Capital, LP $809,200 0.65% 280,000
Mid PINNACLE ASSOCIATES LTD $806,659 0.64% 279,121
Mega GOLDMAN SACHS GROUP INC $790,350 0.63% 273,478
Mega DIMENSIONAL FUND ADVISORS LP $727,708 0.58% 251,803
Mega Amundi $619,263 0.49% 214,278
Large Point72 Asset Management, L.P. $602,804 0.48% 208,583
Large Qube Research & Technologies Ltd $541,770 0.43% 187,464
Large PANAGORA ASSET MANAGEMENT INC $534,389 0.43% 184,910
Large Squarepoint Ops LLC $531,317 0.42% 183,847
Mid XTX Topco Ltd $513,914 0.41% 177,825
Mega MORGAN STANLEY $488,730 0.39% 169,112
Mega LPL Financial LLC $461,533 0.37% 159,700
Mega NORTHERN TRUST CORP Bank $440,094 0.35% 152,282
Small Persistent Asset Partners Ltd $438,493 0.35% 151,728
Mega Invesco Ltd. $324,757 0.26% 112,373
Mega CANADA PENSION PLAN INVESTMENT BOARD Pension $307,496 0.25% 106,400
Large Hudson Bay Capital Management LP $302,739 0.24% 104,754
Large Marex Group plc $289,000 0.23% 100,000
Small AXQ CAPITAL, LP $227,876 0.18% 78,850
Mega AMERIPRISE FINANCIAL INC $223,301 0.18% 77,267
Large Walleye Capital LLC $219,062 0.17% 75,800
Mid Ikarian Capital, LLC $216,440 0.17% 74,893
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $212,415 0.17% 73,500
Mega BARCLAYS PLC $180,991 0.14% 62,627
Mega FMR LLC $175,561 0.14% 60,748
Mega CITADEL ADVISORS LLC $167,042 0.13% 57,800
Large HRT FINANCIAL LP $158,178 0.13% 54,733
Mid Leonteq Securities AG Broker-Dealer $144,500 0.12% 50,000
Large OMERS ADMINISTRATION Corp $144,211 0.12% 49,900
Large Man Group plc $138,754 0.11% 48,012
Small Headlands Technologies LLC $137,364 0.11% 47,531
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $134,674 0.11% 46,600
Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Pension $122,483 0.10% 42,382
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $115,747 0.09% 40,051
Mid ADAR1 Capital Management, LLC $115,600 0.09% 40,000
Large Schonfeld Strategic Advisors LLC $115,360 0.09% 39,917
Mid AlphaCore Capital LLC $109,097 0.09% 37,750
Mega CITIGROUP INC $96,852 0.08% 33,513
Mid Quadrature Capital Ltd $94,297 0.08% 32,629
Mid Brevan Howard Capital Management LP $92,708 0.07% 32,079
Large Corient Private Wealth LLC $91,959 0.07% 31,820
Large SEI INVESTMENTS CO $90,509 0.07% 31,318
Mega AMERICAN CENTURY COMPANIES INC $88,306 0.07% 30,556
Small Velan Capital Investment Management LP $86,700 0.07% 30,000
Mega BNP PARIBAS ARBITRAGE, SA $79,836 0.06% 27,625
Micro Lantern Wealth Advisors, LLC $77,163 0.06% 26,700
Small XML Financial, LLC $71,776 0.06% 24,836
Mega JPMORGAN CHASE & CO $68,709 0.05% 23,775
Mega Vanguard Global Advisers, LLC $65,949 0.05% 22,820
Large PRUDENTIAL FINANCIAL INC $65,314 0.05% 22,600
Small Rangeley Capital, LLC $62,135 0.05% 21,500
Mid Susquehanna Portfolio Strategies, LLC $53,123 0.04% 18,382
Mid BOOTHBAY FUND MANAGEMENT, LLC $52,985 0.04% 18,334
Small Catalyst Funds Management Pty Ltd $51,153 0.04% 17,700
Mid Evercore Wealth Management, LLC $50,699 0.04% 17,543
Large STIFEL FINANCIAL CORP $48,069 0.04% 16,633
Large TUDOR INVESTMENT CORP ET AL $47,479 0.04% 16,429
Mid Vanguard Personalized Indexing Management, LLC $43,789 0.03% 15,152
Small R Squared Ltd $43,688 0.03% 15,117
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $40,460 0.03% 14,000
Small Seven Fleet Capital Management LP $38,688 0.03% 13,387
Small SANDERS MORRIS HARRIS LLC $35,677 0.03% 12,345
Mid Graham Capital Management, L.P. $32,142 0.03% 11,122
Large Universal- Beteiligungs- und Servicegesellschaft mbH $28,900 0.02% 10,000
Mid Sound Income Strategies, LLC $20,987 0.02% 7,262
Large OSAIC HOLDINGS, INC. $17,730 0.01% 6,135
Mid SIMPLEX TRADING, LLC $13,767 0.01% 4,764
Mid MAI Capital Management $12,759 0.01% 4,415
Mega WELLS FARGO & COMPANY/MN $8,670 0.01% 3,000
Large Russell Investments Group, Ltd. $4,170 0.00% 1,443
Micro IMG Wealth Management, Inc. $3,323 0.00% 1,150
Mid Spire Wealth Management $1,918 0.00% 664
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