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Home/Hedge Funds/RTW Investments/Q1 2021

RTW Investments

Period: Q1 2021 Β· Filed: 2021-05-14
View on SEC EDGAR β†—
AUM
$6.41B
Total portfolio value
Positions
111
Reported securities
Top Holding
RCKT
10.9% $697.3M
QoQ Changes
+8 / -8
new Β· exited
⚠️13F Filing Disclosure

AUM figures shown are calculated by summing the reported market value of all positions in SEC 13F-HR filings β€” not the fund's actual assets under management.

  • Excludes cash, bonds, private equity, short positions, and foreign-listed stocks not required to be reported.
  • For PUT and CALL options, the reported Value is the notional value of the underlying shares β€” not the option premium paid. This significantly overstates the actual capital at risk.
  • Actual fund AUM is typically higher and includes strategies, instruments, and positions that never appear in a 13F.
  • 13F filings cover institutional managers with β‰₯$100M in 13F securities. Positions reflect end-of-quarter holdings, disclosed up to 45 days after the period ends.

Data sourced from SEC EDGAR. This tracker is for informational purposes only and does not constitute investment advice.

Portfolio Holdings

Top 30 positions

⚠️ Performance % calculated from filing date ( 2021-05-14) shown is the underlying stock price movement β€” not the derivative's P&L.
TickerIssuerNotionalPort %@ FilingNow (EOD)Since FilingAllocation
RCKTRocket Pharmaceuticals Inc$697.3M10.89%$44.37$3.84-91.3%
10.9%
SPYSPDR S&P 500 ETF TR$375.0M5.85%$369.21$744.78+101.7%
5.8%
VCELVericel Corp$250.9M3.92%$55.55$46.98-15.4%
3.9%
PTCTPTC Therapeutics Inc$250.7M3.91%$47.35$83.31+76.0%
3.9%
ALNYAlnylam Pharmaceuticals Inc$237.7M3.71%$141.19$312.78+121.5%
3.7%
MRTXMirati Therapeutics Inc$228.4M3.57%β€”β€”
3.6%
DRNADicerna Pharmaceuticals Inc$190.8M2.98%β€”β€”
3.0%
ILMNIllumina Inc$185.1M2.89%$373.60$188.68-49.5%
2.9%
NTRANatera Inc$173.9M2.71%$101.54$279.32+175.1%
2.7%
DMTKQDermTech Inc$158.4M2.47%β€”β€”
2.5%
ESTAEstablishment Labs Hldgs Inc$145.0M2.26%$62.53$89.25+42.7%
2.3%
STOKStoke Therapeutics Inc$141.5M2.21%$38.84$32.70-15.8%
2.2%
MASIMasimo Corp$136.6M2.13%$229.66β€”
2.1%
TXG10x Genomics Inc$128.8M2.01%$181.00$39.01-78.5%
2.0%
CERNCerner Corp$127.5M1.99%β€”β€”
2.0%
AXNXAxonics Modulation Technolog$112.8M1.76%β€”β€”
1.8%
QDELXXXXQuidel Corp$112.4M1.75%β€”β€”
1.8%
ARVNArvinas Inc$107.3M1.67%$66.10$8.39-87.3%
1.7%
GMEDGlobus Med Inc$103.0M1.61%$61.67$80.12+29.9%
1.6%
IMVTImmunovant Inc$102.0M1.59%$16.04$38.79+141.8%
1.6%
TNDMTandem Diabetes Care Inc$100.5M1.57%$88.25$15.32-82.6%
1.6%
ITOSIteos Therapeutics Inc$94.4M1.47%β€”β€”
1.5%
GHGuardant Health Inc$93.1M1.45%$152.65$167.98+10.0%
1.4%
AXSMAxsome Therapeutics Inc$91.5M1.43%$56.62$244.31+331.5%
1.4%
PTGXProtagonist Therapeutics Inc$90.8M1.42%$25.90$131.62+408.2%
1.4%
RNAMAvidity Biosciences Inc$87.1M1.36%β€”β€”
1.4%
CLDXCelldex Therapeutics Inc New$80.5M1.26%$20.60$38.37+86.3%
1.3%
CCCCC4 Therapeutics Inc$79.4M1.24%$36.99$4.30-88.4%
1.2%
TARSTarsus Pharmaceuticals Inc.$79.1M1.23%$32.23$65.44+103.0%
1.2%
ADVMAdverum Biotechnologies Inc$72.5M1.13%β€”β€”
1.1%

Quarter-on-Quarter Activity

Q1 2021 vs. Q4 2020

New Positions (8)

TickerIssuerNotionalSince Filing
SPYSPDR S&P 500 ETF TR$375.0M+101.7%
QDELXXXXQuidel Corp$112.4M
RXDXPrometheus Biosciences Inc$51.7M
IMCRImmunocore Hldgs PLC$50.1M
GTHGenetron Hldgs Ltd$39.0M
LABPLandos Biopharma Inc$38.3M
ASLNAslan Pharmaceuticals Ltd$10.9M
CHAQChardan Healthcr Acqstn 2 Co$8.4M

Exited Positions (8)

TickerIssuerNotional
FREQFrequency Therapeutics Inc$86.8M
FPRXFive Prime Therapeutics Inc$42.8M
PENPenumbra Inc$20.7M
ODTCOdonate Therapeutics Inc$19.2M
GNMKGenMark Diagnostics Inc$11.1M
PHGEBiomx Inc$3.8M
PANAUPanacea Acquisition Corp$3.8M
OSUROraSure Technologies Inc$1.9M

Increased (8)

TickerIssuerNotionalShares Ξ”Since Filing
ITOSIteos Therapeutics Inc$58.5M+157.2%
TNDMTandem Diabetes Care Inc$37.3M+72.4%-82.6%
MGNXMacroGenics Inc$35.4M+60.3%
FULCFulcrum Therapeutics Inc$13.5M+54.7%
RGNXRegenxbio Inc$1.4M+47.6%
TBIOTranslate Bio Inc$17.4M+47.1%
BWAYBrainsway Ltd$6.2M+45.2%
IDYAIdeaya Biosciences Inc$32.1M+33.5%

Trimmed (8)

TickerIssuerNotionalShares Ξ”Since Filing
KURAKura Oncology Inc$-25.0M-36.4%
CELLBerkeley Lts Inc$-16.1M-20.7%
IMVTImmunovant Inc$-248.7M-16.3%+141.8%
ARVNArvinas Inc$-44.8M-9.4%-87.3%
RCKTRocket Pharmaceuticals Inc$-238.3M-7.9%-91.3%
BLUBellus Health Inc New$3.3M-4.3%
PTGXProtagonist Therapeutics Inc$17.3M-3.9%+408.2%
Trillium Therapeutics Inc$-9.4M-3.4%
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