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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 US Total Market Shares ETF is the top mutual fund, with 2.87% of its assets in Mirum Pharmaceuticals shares.

MIRM Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockMirum Pharmaceuticals49.51%1.35%49.14%
SectorHealthcare Stocks 35.56%12.08%52.36%
IndustryBiotech Stocks 35.43%12.01%52.56%

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. /de4.39M7.46%$513.94M
Blackrock3.24M6.90%$110.71M
Fmr3.67M6.24%$429.68M
Vanguard group2.60M4.47%$205.07M
Vanguard capital management2.25M3.83%$263.89M
State street2.17M3.69%$254.12M
Price t rowe associates inc /md/1.72M3.42%$158.66M
Bvf inc/il1.58M3.16%$146.40M

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
Highlander partners122.98K4.83%$14.40M
Patient square capital lp260.50K4.72%$30.50M
Bvf inc/il1.58M4.66%$146.40M
Palo alto investors lp325.18K4.59%$30.04M
Rock springs capital management lp811.29K4.42%$74.95M
First turn management400.46K4.13%$36.99M

Top Buyers

HolderShares% AssetsChange
Fmr3.67M0.02%1.70M
William blair investment management1.40M0.49%1.07M
Tcg crossover management1.06M2.81%1.00M
Frazier life sciences management7.68M18.25%884.56K
Blackrock3.24M0.00%785.78K

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
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
Ra capital management318.55K0.31%318.55K$29.43M
Norges bank263.18K0.00%263.18K$20.79M

Sold Out

HolderChange
Coldstream capital management-1.00
Tortoise investment management-2.00
Ronald blue trust-2.00
Twin peaks wealth advisors-2.00
Nelson, van denburg & campbell wealth management group-5.00

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 US Total Market Shares ETF1.41M2.87%1.77K
Vanguard Total Stock Mkt Idx Inv1.65M2.70%-185.13K
Vanguard Morn Total Stk Mkt Idx Investor1.65M2.70%-185.13K
T. Rowe Price Health Sciences1.49M2.44%199.43K
Strategic Advisers Fidelity US TtlStk1.33M2.18%23.60K
Vanguard Small Cap Index1.19M1.95%519.70K
iShares Russell 2000 ETF1.20M1.85%-21.31K
American Funds SMALLCAP World A1.12M1.84%398.65K
State Street® SPDR® S&P® Biotech ETF1.04M1.60%2.39K
MEDICAL BioHealth EUR Acc756.50K1.59%-

Recent Insider Transactions

DateNameRoleActivityValue
Aug 11, 2026BJERKHOLT ERIC CHIEF FINANCIAL OFFICERSell$599.51K
Aug 10, 2026Peetz Christopher CHIEF EXECUTIVE OFFICERSell$230.32K
Aug 10, 2026Peetz Christopher CHIEF EXECUTIVE OFFICERSell$597.19K
Aug 10, 2026Peetz Christopher CHIEF EXECUTIVE OFFICERSell$1.15M
Aug 03, 2026Howe Jolanda SVP, GLOBAL CONTROLLERSell$193.73K

Insider Transactions Trends

DateBuySell
2026 Q3-14
2026 Q2-13
2026 Q1121
2025 Q4-6
2025 Q3-10

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 35.43%, 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 (4.39M shares, 7.46%). Together, they hold 36.28% 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 US Total Market Shares ETF is the top mutual fund holder of Mirum Pharmaceuticals shares, with 2.87% of its total shares outstanding invested in 1.41M Mirum Pharmaceuticals shares.

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