Monte Rosa Therapeutics, Inc. (GLUE) Ownership

NASDAQ: GLUETop holders, insider trades and short interest.

GLUE ownership summary

as of October 18, 2026
Institutions
116.5%
of shares outstanding
Insiders
0.56%
of shares outstanding
Shares outstanding
85.3M
Float
54.5M
shares available to trade
Short interest
23.44%
19.7M shares short
Days to cover
17.52
short interest up 2.2% vs prior month
  • Institutions 116.50%
  • Insiders 0.56%

GLUE top institutional holders

20 largest
Monte Rosa Therapeutics, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1T. Rowe Price Associates, Inc.11.28%8.9M$86.3M+2.1M (+31.9%)June 30, 2026
2NEA Management Company, LLC9.79%7.7M$74.9M—June 30, 2026
3BlackRock Inc8.71%6.8M$66.7M+1.2M (+21.4%)June 30, 2026
4TCG Crossover Management, LLC5.88%4.6M$45.0M—June 30, 2026
5Vestal Point Capital LP5.86%4.6M$44.8M+996,535 (+27.7%)June 30, 2026
6Bvf Inc5.68%4.5M$43.4M—June 30, 2026
7Baker Bros Advisors LP5.53%4.3M$42.3M—June 30, 2026
8State Street Corp4.75%3.7M$36.3M+377,436 (+11.3%)June 30, 2026
9Suvretta Capital Management, LLC4.52%3.5M$34.6M−677,270 (−16.0%)June 30, 2026
10Vanguard Capital Management, LLC4.35%3.4M$33.2M+312,682 (+10.1%)June 30, 2026
11Versant Venture Management LLC4.05%3.2M$31.0M—June 30, 2026
12BRAIDWELL LP3.12%2.5M$23.9M−755,012 (−23.5%)June 30, 2026
13Geode Capital Management, LLC2.37%1.9M$18.2M+323,301 (+21.0%)June 30, 2026
14American Century Companies Inc2.07%1.6M$15.8M−1.2M (−42.2%)June 30, 2026
15Marshall Wace Asset Management Ltd2.03%1.6M$15.5M+160,448 (+11.2%)June 30, 2026
16Aisling Capital Management LP1.98%1.6M$15.2M—June 30, 2026
17Nantahala Capital Management, LLC1.66%1.3M$12.7M+651,993 (+100.0%)June 30, 2026
18Bellevue Group AG1.52%1.2M$11.6M−60,000 (−4.8%)June 30, 2026
19Dimensional Fund Advisors, Inc.1.50%1.2M$11.5M+136,116 (+13.1%)June 30, 2026
20MPM Oncology Impact Management LP1.48%1.2M$11.3M−15,847 (−1.3%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 9 holders added 6.3M shares and 5 cut 2.7M.

GLUE top mutual fund and ETF holders

20 largest
Monte Rosa Therapeutics, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Vanguard MStar Total Stk Mkt Idx Invest3.26%2.6M$24.9M+290 (+0.0%)August 31, 2026
2T. Rowe Price New Horizons2.83%2.2M$21.7M−64,434 (−2.8%)August 31, 2026
3State Street® SPDR® S&P® Biotech ETF2.70%2.1M$20.6M−40,500 (−1.9%)September 30, 2026
4iShares Russell 2000 ETF2.44%1.9M$18.7M−22,080 (−1.1%)September 30, 2026
5HBM Healthcare Investments AG Ord2.32%1.8M$17.8M—June 30, 2026
6T. Rowe Price Integrated US Sm Gr Eq1.88%1.5M$14.4M—August 31, 2026
7Fidelity Small Cap Index1.03%810K$7.9M+7,191 (+0.9%)July 31, 2026
8T. Rowe Price Health Sciences0.95%749K$7.3M−672,100 (−47.3%)August 31, 2026
9iShares Russell 2000 Growth ETF0.88%695K$6.8M−879 (−0.1%)September 30, 2026
10MEDICAL BioHealth EUR Acc0.78%612K$6.0M+129 (+0.0%)August 31, 2026
11Vanguard Explorer Inv0.68%533K$5.2M+533,079 (0.0%)June 30, 2026
12Avantis US Small Cap Value ETF0.62%485K$4.7M—September 30, 2026
13iShares Biotechnology ETF0.59%463K$4.5M−3,504 (−0.8%)September 30, 2026
14Vanguard Russell 2000 ETF0.54%425K$4.1M+9,825 (+2.4%)August 31, 2026
15Schwab US Small-Cap ETF™0.50%392K$3.8M+261 (+0.1%)September 30, 2026
16EA Bridgeway Omni Small-Cap Value ETF0.46%358K$3.5M−5,232 (−1.4%)September 30, 2026
17Fidelity Extended Market Index0.42%331K$3.2M−3,423 (−1.0%)August 31, 2026
18BlackRock Health Sciences Opps Inv A0.41%318K$3.1M—August 31, 2026
19T. Rowe Price Small-Mid Cap ETF0.36%283K$2.8M+1,158 (+0.4%)September 30, 2026
20Fidelity Enhanced Small Cap Core ETF0.35%272K$2.7M+570 (+0.2%)September 30, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

GLUE insider transactions

latest 6
Monte Rosa Therapeutics, Inc. insider transactions
DateNameTransactionPriceSharesValue
2026-04-09Philip NicksonSell$17.695,845$103,398
2026-03-04Edmund DunnSell$17.96139$2,496
2026-03-02Edmund DunnSell$17.50536$9,380
2026-03-02Markus WarmuthSell$17.925,466$97,951
2026-02-27Edmund DunnSell$18.1025,164$455,468
2026-01-07Markus WarmuthSell$23.495,466$128,396

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

GLUE shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns GLUE

Institutional investors own 116.5% of Monte Rosa Therapeutics's shares and insiders 0.56%. The largest holder is T. Rowe Price Associates, Inc. with 11.28% of the shares (8.9M), as of June 30, 2026. Among the top 20 institutions, 9 added shares and 5 reduced their stake in the latest filings. Short interest is 23.44% of the float, or 17.52 days of average trading volume. The share count rose 201.5% since 2020.

Related: GLUE analyst forecast, GLUE key metrics. See the GLUE stock overview for the latest quote and news.

GLUE ownership FAQ

Who owns the most Monte Rosa Therapeutics stock?

The largest shareholders of Monte Rosa Therapeutics are T. Rowe Price Associates, Inc. (11.28%), NEA Management Company, LLC (9.79%), BlackRock Inc (8.71%), TCG Crossover Management, LLC (5.88%), Vestal Point Capital LP (5.86%).

What percentage of Monte Rosa Therapeutics is owned by institutions?

Institutions hold 116.5% of Monte Rosa Therapeutics's shares outstanding; insiders hold 0.56%.

Which funds own Monte Rosa Therapeutics?

The largest fund holders of Monte Rosa Therapeutics are Vanguard MStar Total Stk Mkt Idx Invest (3.26%), T. Rowe Price New Horizons (2.83%), State Street® SPDR® S&P® Biotech ETF (2.70%), iShares Russell 2000 ETF (2.44%), HBM Healthcare Investments AG Ord (2.32%).

What is Monte Rosa Therapeutics's short interest?

19.7M shares of Monte Rosa Therapeutics were sold short, 23.44% of the float; at the average daily volume it would take 17.52 days to cover.

Are insiders buying or selling Monte Rosa Therapeutics?

Of the latest 6 reported insider transactions in Monte Rosa Therapeutics (since January 7, 2026), 0 were purchases and 6 were sales.

How many shares of Monte Rosa Therapeutics are outstanding?

Monte Rosa Therapeutics has 85.3M shares outstanding, of which 54.5M are in the public float.

Biotechnology: ownership