MacroGenics Ownership | Who Owns MacroGenics?

Overview Forecast RevenueFinancials Chart

MacroGenics Ownership Summary

MacroGenics is owned by 64.15% institutional investors, 3.37% insiders, and 32.48% retail investors. Bellevue group is the largest institutional shareholder, holding 15.71% of MGNX shares. BB Biotech AG Ord is the top mutual fund, with 15.68% of its assets in MacroGenics shares.

MGNX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	MacroGenics	64.15%	3.37%	32.48%
Sector	Healthcare Stocks	35.58%	11.87%	52.55%
Industry	Biotech Stocks	35.75%	11.83%	52.41%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Bellevue group	9.92M	15.71%	$16.67M
Armistice capital	6.01M	9.52%	$17.37M
Blackrock	5.40M	8.67%	$22.96M
Vanguard group	4.23M	6.68%	$6.81M
Renaissance	2.96M	4.69%	$8.56M
Millennium management	2.79M	4.42%	$8.08M
Acadian asset management	2.54M	4.03%	$7.35M
Two sigma investments, lp	2.53M	4.00%	$7.31M
Marshall wace, llp	2.03M	3.21%	$5.85M
Ra capital management	1.86M	2.95%	$5.39M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Bellevue group	9.92M	0.35%	$16.67M
Armistice capital	6.01M	0.31%	$17.37M
Diadema partners lp	600.00K	0.29%	$1.73M
Persistent asset partners	151.73K	0.16%	$438.49K
Rock springs capital management lp	1.05M	0.13%	$3.42M
Affinity asset advisors	500.00K	0.07%	$1.45M
Gsa capital partners llp	379.65K	0.07%	$1.10M
Rangeley capital	21.50K	0.06%	$62.13K
Ra capital management	1.86M	0.06%	$5.39M
Velan capital investment management lp	30.00K	0.05%	$86.70K

Top Buyers

Holder	Shares	% Assets	Change
Ra capital management	1.86M	0.06%	1.86M
Two sigma investments, lp	2.53M	0.01%	1.53M
Millennium management	2.79M	0.00%	819.88K
Marshall wace, llp	2.03M	0.01%	740.96K
Diadema partners lp	600.00K	0.29%	600.00K

Top Sellers

Holder	Shares	% Assets	Change
Avoro capital advisors	-	-	-6.15M
Frazier life sciences management	-	-	-3.18M
T. rowe price investment management	-	-	-2.77M
Jefferies financial group	-	-	-1.84M
Ecor1 capital	-	-	-1.60M

New Positions

Holder	Shares	% Assets	Change	Value
Ra capital management	1.86M	0.06%	1.86M	$5.39M
Diadema partners lp	600.00K	0.29%	600.00K	$1.73M
Vanguard fiduciary trust	340.09K	0.00%	340.09K	$982.86K
Voleon capital management lp	307.39K	0.01%	307.39K	$516.42K
Cantor fitzgerald, l. p.	160.00K	0.00%	160.00K	$268.80K

Sold Out

Holder	Change
Financial gravity asset management	-2.00
Pnc financial services group	-12.00
True wealth design	-12.00
Nelson, van denburg & campbell wealth management group	-13.00
Farther finance advisors	-20.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	110	23.60%	40,513,129	1.50%	64	1.61%	58	38.10%	28	12.00%
Dec 31, 2025	18	-83.02%	5,558,645	-87.92%	8	0.17%	7	-85.42%	3	-88.46%
Sep 30, 2025	26	-75.47%	5,421,993	-88.41%	8	0.16%	9	-80.85%	5	-84.85%
Jun 30, 2025	111	-12.60%	48,210,576	-8.42%	76	1.10%	48	-11.11%	34	-15.00%
Mar 31, 2025	127	-1.55%	53,716,987	-4.04%	85	1.07%	55	-11.29%	40	5.26%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
BB Biotech AG Ord	9.92M	15.68%	-
Vanguard US Total Market Shares ETF	2.00M	3.17%	-
Vanguard Total Stock Mkt Idx Inv	1.93M	3.03%	-
Wasatch Ultra Growth	1.43M	2.26%	-228.06K
Wasatch Micro Cap	773.76K	1.23%	-
Vanguard Institutional Extnd Mkt Idx Tr	651.75K	1.03%	-
Fidelity Small Cap Index	633.43K	1.00%	-6.51K
State St Russell Sm/Mid Cp® Indx SL Cl I	476.20K	0.75%	-
State St Russell Sm/Mid Cp® Indx NL Cl C	476.20K	0.75%	-
iShares Russell 2000 Growth ETF	450.86K	0.71%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Aug 19, 2025	HEIDEN WILLIAM K	-	Buy	$76.76K
Aug 20, 2025	HEIDEN WILLIAM K	-	Buy	$73.75K
Feb 15, 2025	Smith Beth Ann	VP, Controller & Treasurer	Sell	$1.08K
Apr 04, 2024	Peters Jeffrey Stuart	Senior VP and General Counsel	Sell	$3.80K
Apr 04, 2024	Peters Jeffrey Stuart	Senior VP and General Counsel	Sell	$2.28K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	-
2026 Q1	-	-
2025 Q4	-	-
2025 Q3	2	-
2025 Q2	-	-

MGNX Ownership FAQ

Who Owns MacroGenics?

MacroGenics shareholders are primarily institutional investors at 64.15%, followed by 3.37% insiders and 32.48% retail investors. The average institutional ownership in MacroGenics's industry, Biotech Stocks , is 35.75%, which MacroGenics exceeds.

Who owns the most shares of MacroGenics?

MacroGenics’s largest shareholders are Bellevue group (9.92M shares, 15.71%), Armistice capital (6.01M shares, 9.52%), and Blackrock (5.4M shares, 8.67%). Together, they hold 33.90% of MacroGenics’s total shares outstanding.

Does Blackrock own MacroGenics?

Yes, BlackRock owns 8.67% of MacroGenics, totaling 5.4M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 22.96M$. In the last quarter, BlackRock decreased its holdings by -294K shares, a -5.17% change.

Who is MacroGenics’s biggest shareholder by percentage of total assets invested?

Bellevue group is MacroGenics’s biggest shareholder by percentage of total assets invested, with 0.35% of its assets in 9.92M MacroGenics shares, valued at 16.67M$.

Who is the top mutual fund holder of MacroGenics shares?

BB Biotech AG Ord is the top mutual fund holder of MacroGenics shares, with 15.68% of its total shares outstanding invested in 9.92M MacroGenics shares.

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