StockData
COAGNasdaqBiological Products, (No Diagnostic Substances)Fiscal year ends December 31

Hemab Therapeutics Holdings, Inc.

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 11, 2026
$32.09+2.02 (+6.72%)

Close on Oct 19, 2026

Market cap
$966.27M
P/E (TTM)
–
Dividend yield
–

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
77.5%
36M of 47M shares
Institutional holders
55
55 new, 0 sold out
Net institutional buying
36M
In Q2 2026
Insider trades, 12 months
16 buys · 0 sales
Net bought $55.46M

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
RA Capital Management, L.P.7,729,77316.60%13G (passive)May 4, 2026
Access Industries Management LLC4,876,34410.40%13D (active)May 4, 2026
Novo Holdings A/S4,180,5509.00%13G (passive)Jun 30, 2026
FMR LLC3,697,8377.90%13G (passive)Jun 30, 2026
Capital International Investors3,603,8767.70%13G (passive)Jun 30, 2026
David Kroin3,600,9968.15%13G (passive)May 1, 2026
Behzad Aghazadeh3,298,2367.06%13G (passive)Jun 30, 2026
Kinam Hong2,511,2125.40%13G (passive)Jun 30, 2026
Raymond Debbane2,366,2355.10%13G (passive)Aug 3, 2026

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of COAGValueChange% of portfolio
Ra Capital Management, L.P.7,808,62716.72%$286.81MNew2.49%
Novo Holdings A/S4,180,5508.95%$153.55MNew8.92%
FMR LLC3,697,8377.92%$135.82MNew0.01%
Capital International Investors3,603,8767.72%$132.37MNew0.03%
Deep Track Capital, LP3,602,0937.71%$132.30MNew1.93%
Siren, L.L.C.2,086,8344.47%$76.65MNew1.55%
Avoro Capital Advisors LLC1,925,1504.12%$70.71MNew0.63%
Bain Capital Life Sciences Investors, LLC1,650,0003.53%$60.60MNew3.60%
JPMorgan Chase & Co1,152,4202.47%$42.33MNew0.00%
Vanguard Capital Management LLC780,7581.67%$28.68MNew0.00%
Price T Rowe Associates Inc /Md/746,0401.60%$27.40KNew0.00%
Driehaus Capital Management LLC715,7911.53%$26.29MNew0.15%
Rock Springs Capital Management LP575,4321.23%$21.14MNew1.03%
Bellevue Group AG550,0001.18%$20.20MNew0.43%
Citadel Advisors LLC523,4501.12%$19.23MNew0.00%
BlackRock, Inc.283,8330.61%$10.43MNew0.00%
Deerfield Management Company, L.P. (Series C)275,0000.59%$10.10MNew0.11%
ExodusPoint Capital Management, LP218,2870.47%$8.02MNew0.05%
Geode Capital Management, LLC211,7980.45%$7.78MNew0.00%
Braidwell LP160,0000.34%$5.88MNew0.22%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares held% of sharesNew / addedReduced / closedShares boughtShares sold
Q2 20265536M77.5%55 / 00 / 036M0M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of COAGValue% of fundAs of
SMALLCAP World Fund Inc2,157,9144.62%$79.26M0.08%Jun 30, 2026
SMALLCAP World Fund Inc1,348,6292.89%$49.54M0.05%Jun 30, 2026
Vanguard Total Stock Market Index Fund555,5431.19%$20.41M0.00%Jun 30, 2026
JPMorgan Small Cap Growth Fund531,3821.14%$19.52M0.75%Jun 30, 2026
Fidelity Growth Company Fund524,5001.12%$14.95M0.02%May 31, 2026
Fidelity Stock Selector Small Cap Fund439,9530.94%$20.92M0.28%Jul 31, 2026
Strategic Advisers Fidelity U.S. Total Stock Fund412,4000.88%$11.75M0.00%May 31, 2026
Select Biotechnology Portfolio379,4760.81%$10.82M0.21%May 31, 2026
Fidelity Series Small Cap Opportunities Fund267,7540.57%$12.73M0.27%Jul 31, 2026
Fidelity Blue Chip Growth Fund236,2000.51%$11.23M0.01%Jul 31, 2026
T. Rowe Price Health Sciences Fund, Inc.206,8400.44%$7.60M0.06%Jun 30, 2026
Vanguard Extended Market Index Fund203,5510.44%$7.48M0.01%Jun 30, 2026
Fidelity Advisor Biotechnology Fund186,7000.40%$8.88M0.40%Jul 31, 2026
T. Rowe Price New Horizons Fund, Inc.174,5410.37%$6.41M0.04%Jun 30, 2026
JPMorgan Small Cap Blend Fund171,2810.37%$6.29M0.37%Jun 30, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares owned% of sharesLatest filing
Benny SorensenSee Remarks, Director––Apr 30, 2026
Catherine MadiganChief Medical Officer––May 4, 2026
Mads Nikolaj Behrndt-EriksenSee Remarks36,5200.08%May 4, 2026
Ananthram Sreenivasa MurthyChief Operating Officer––Apr 30, 2026
Keli WalbertDirector––Sep 25, 2026
RA Capital Nexus Fund IV, L.P.Director––May 6, 2026
RA Capital Nexus Fund II, L.P.Director––May 6, 2026
John MaraganoreDirector17,9740.04%May 4, 2026
Linda BainDirector––Apr 30, 2026
Laura TadvalkarDirector––Apr 30, 2026
Akshay VaishnawDirector––Apr 30, 2026
Ra Capital Management, L.P.10% owner6,444,63713.80%Jun 17, 2026
Capital Healthcare Fund LP RA10% owner6,340,06313.57%Jun 17, 2026
Peter Kolchinsky10% owner6,372,17013.64%Jun 17, 2026
Rajeev M. Shah10% owner6,261,11813.40%Jun 17, 2026
Den-Mab Llc Ai10% owner4,876,34410.44%May 14, 2026
Len Blavatnik10% owner––May 14, 2026
Access Industries Management, Llc10% owner––May 14, 2026
Industries Holdings LLC Access10% owner––May 14, 2026
Biotechnology LLC AI10% owner––May 14, 2026
Holdings A/S Novo10% owner4,180,5508.95%May 6, 2026

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Ra Capital Management, L.P.
10% owner
Jun 16, 2026Buy+61,523$24.98$1.54M6,444,637
Ra Capital Management, L.P.
10% owner
Jun 15, 2026Buy+6,146$24.89$152.97K6,383,114
Ra Capital Management, L.P.
10% owner
May 20, 2026Buy+996$24.94$24.84K6,376,968
Ra Capital Management, L.P.
10% owner
May 19, 2026Buy+3,802$24.97$94.94K6,375,972
Peter Kolchinsky
10% owner
May 12, 2026Buy+6,387$24.90$159.04K6,372,170
Capital Healthcare Fund LP RA
10% owner
May 11, 2026Buy+14,149$24.47$346.23K6,340,063
Capital Healthcare Fund LP RA
10% owner
May 11, 2026Buy+25,720$25.00$643.00K6,365,783
Capital Healthcare Fund LP RA
10% owner
May 8, 2026Buy+1,483$24.98$37.05K6,325,914
Capital Healthcare Fund LP RA
10% owner
May 7, 2026Buy+7,921$24.34$192.80K6,322,446
Capital Healthcare Fund LP RA
10% owner
May 7, 2026Buy+1,985$24.95$49.53K6,324,431
Rajeev M. Shah
Director, 10% owner
May 6, 2026Buy+14,611$23.77$347.30K6,261,118
Rajeev M. Shah
Director, 10% owner
May 6, 2026Buy+53,407$24.83$1.33M6,314,525
Rajeev M. Shah
Director, 10% owner
May 5, 2026Buy+87,143$24.59$2.14M6,236,239
Rajeev M. Shah
Director, 10% owner
May 5, 2026Buy+10,268$25.00$256.70K6,246,507
Rajeev M. Shah
Director, 10% owner
May 4, 2026Conversion+1,009,052––1,009,052
Rajeev M. Shah
Director, 10% owner
May 4, 2026Conversion+221,188––221,188
Rajeev M. Shah
Director, 10% owner
May 4, 2026Buy+2,541,250$18.00$45.74M6,149,096
Rajeev M. Shah
Director, 10% owner
May 4, 2026Buy+133,750$18.00$2.41M354,938
Rajeev M. Shah
Director, 10% owner
May 4, 2026Conversion+3,607,846––3,607,846
Holdings A/S Novo
10% owner
May 4, 2026Conversion+4,180,550––4,180,550
John Maraganore
Director
May 4, 2026Conversion+17,974––17,974
John Maraganore
Director
May 4, 2026Conversion+17,974––35,948

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.