MASSACHUSETTS FINANCIAL SERVICES CO /MA/ - PHATHOM PHARMACEUTICALS INC ownership

PHATHOM PHARMACEUTICALS INC's ticker is PHAT and the CUSIP is 71722W107. A total of 77 filers reported holding PHATHOM PHARMACEUTICALS INC in Q4 2020. The put-call ratio across all filers is 1.36 and the average weighting 1.2%.

Quarter-by-quarter ownership
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ ownership history of PHATHOM PHARMACEUTICALS INC
ValueSharesWeighting
Q3 2020$614,000
+7.2%
16,755
-3.8%
0.00%
Q2 2020$573,00017,4120.00%
Other shareholders
PHATHOM PHARMACEUTICALS INC shareholders Q4 2020
NameSharesValueWeighting ↓
Medicxi Ventures Management (Jersey) Ltd 2,067,861$40,675,00010.18%
FRAZIER MANAGEMENT LLC 5,827,415$114,625,0008.82%
Abingworth LLP 1,203,135$23,606,0005.72%
RA Capital Management 3,115,008$61,272,0001.08%
Avidity Partners Management LP 1,896,000$37,294,0000.79%
StepStone Group LP 422,085$8,302,0000.47%
Summit Rock Advisors, LP 34,100$671,0000.40%
Parkman Healthcare Partners LLC 77,481$1,524,0000.34%
Rhenman & Partners Asset Management AB 186,210$3,624,0000.24%
Ikarian Capital, LLC 74,560$1,467,0000.22%
View complete list of PHATHOM PHARMACEUTICALS INC shareholders