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Mirum Pharmaceuticals Ownership | Who Owns Mirum Pharmaceuticals?

OverviewForecastRevenueFinancialsChartTranscripts

Mirum Pharmaceuticals Ownership Summary

Mirum Pharmaceuticals is owned by 49.51% institutional investors, 1.35% insiders, and 49.14% retail investors. Frazier life sciences management is the largest institutional shareholder, holding 15.30% of MIRM shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.00% of its assets in Mirum Pharmaceuticals shares.

MIRM Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockMirum Pharmaceuticals49.51%1.35%49.14%
SectorHealthcare Stocks 35.58%11.87%52.55%
IndustryBiotech Stocks 35.80%11.85%52.35%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Frazier life sciences management7.68M15.30%$709.45M
Janus henderson group6.79M13.52%$627.30M
Blackrock funding, inc. /de3.85M7.66%$355.34M
Blackrock3.24M6.90%$110.71M
Vanguard group2.60M4.47%$205.07M
Fmr1.97M3.92%$181.56M
State street1.94M3.87%$179.61M
Price t rowe associates inc /md/1.72M3.42%$158.66M
Bvf inc/il1.58M3.16%$146.40M
Eventide asset management1.41M2.81%$130.11M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Frazier life sciences management7.68M18.25%$709.45M
Boone capital management421.24K11.92%$38.91M
Novo1.32M9.92%$122.40M
Tang capital management1.24M5.80%$114.18M
Bvf inc/il1.58M4.66%$146.40M
Palo alto investors lp325.18K4.59%$30.04M
Highlander partners122.98K4.45%$11.36M
Rock springs capital management lp811.29K4.42%$74.95M
First turn management400.46K4.13%$36.99M
Patient square capital lp230.00K3.77%$21.25M

Top Buyers

HolderShares% AssetsChange
Fmr1.97M0.01%1.32M
Tcg crossover management1.06M2.81%1.00M
Frazier life sciences management7.68M18.25%884.56K
Blackrock3.24M0.00%785.78K
Capital world investors724.41K0.01%724.41K

Top Sellers

HolderShares% AssetsChange
D. e. shaw167.49K0.01%-780.67K
Eventide asset management1.41M2.15%-684.71K
Bioimpact capital---589.58K
Polar capital283.48K0.09%-510.16K
Cadian capital management, lp---475.71K

New Positions

HolderShares% AssetsChangeValue
Capital world investors724.41K0.01%724.41K$66.92M
Paradigm biocapital advisors lp625.00K1.18%625.00K$57.74M
Baker bros. advisors lp445.98K0.24%445.98K$41.20M
Octagon capital advisors lp338.90K3.46%338.90K$31.31M
Vanguard fiduciary trust333.33K0.01%333.33K$30.79M

Sold Out

HolderChange
Coldstream capital management-1.00
Tortoise investment management-2.00
Concord wealth partners-5.00
Nelson, van denburg & campbell wealth management group-5.00
Srs capital advisors-6.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 2026211-25.96%24,853,219-59.28%490.45%120-25.93%58-27.50%
Dec 31, 2025219-21.22%45,026,857-21.48%770.80%124-24.39%63-18.18%
Sep 30, 202599-54.59%7,010,413-87.34%140.11%58-48.21%28-64.10%
Jun 30, 20252160.47%55,383,1624.20%1110.94%110-9.84%7823.81%
Mar 31, 20252154.37%54,155,7882.17%1100.90%1215.22%656.56%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv1.83M3.00%5.05K
Vanguard US Total Market Shares ETF1.41M2.87%1.77K
Eventide Gilead N1.31M2.17%-121.21K
State Street® SPDR® S&P® Biotech ETF1.03M1.69%-10.18K
iShares Russell 2000 ETF991.01K1.63%8.37K
MEDICAL BioHealth EUR Acc756.50K1.59%-
Janus Henderson US SMID Cap Growth MA679.10K1.37%679.10K
Janus Henderson Global Life Sciences808.98K1.33%126.29K
Janus Henderson Global Life Sciences D808.98K1.33%3.07K
Janus Henderson Triton D778.95K1.28%-

Recent Insider Transactions

DateNameRoleActivityValue
Jun 08, 2026BJERKHOLT ERIC CHIEF FINANCIAL OFFICERSell$149.05K
Jun 08, 2026BJERKHOLT ERIC CHIEF FINANCIAL OFFICERSell$110.39K
Jun 08, 2026BJERKHOLT ERIC CHIEF FINANCIAL OFFICERSell$209.63K
Jun 01, 2026Peetz Christopher CHIEF EXECUTIVE OFFICERSell$1.58M
Jun 01, 2026Peetz Christopher CHIEF EXECUTIVE OFFICERSell$246.25K

Insider Transactions Trends

DateBuySell
2026 Q2-12
2026 Q1121
2025 Q4-6
2025 Q3-10
2025 Q2-3

MIRM Ownership FAQ

Who Owns Mirum Pharmaceuticals?

Mirum Pharmaceuticals shareholders are primarily institutional investors at 49.51%, followed by 1.35% insiders and 49.14% retail investors. The average institutional ownership in Mirum Pharmaceuticals's industry, Biotech Stocks , is 35.80%, which Mirum Pharmaceuticals exceeds.

Who owns the most shares of Mirum Pharmaceuticals?

Mirum Pharmaceuticals’s largest shareholders are Frazier life sciences management (7.68M shares, 15.30%), Janus henderson group (6.79M shares, 13.52%), and Blackrock funding, inc. /de (3.85M shares, 7.66%). Together, they hold 36.49% of Mirum Pharmaceuticals’s total shares outstanding.

Does Blackrock own Mirum Pharmaceuticals?

Yes, BlackRock owns 6.90% of Mirum Pharmaceuticals, totaling 3.24M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 110.71M$. In the last quarter, BlackRock increased its holdings by 785.78K shares, a 32.04% change.

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

Frazier life sciences management is Mirum Pharmaceuticals’s biggest shareholder by percentage of total assets invested, with 18.25% of its assets in 7.68M Mirum Pharmaceuticals shares, valued at 709.45M$.

Who is the top mutual fund holder of Mirum Pharmaceuticals shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Mirum Pharmaceuticals shares, with 3.00% of its total shares outstanding invested in 1.83M Mirum Pharmaceuticals shares.

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