What big investors reported

What changed since the prior report

Green means the manager reported a new or larger share amount. Red means a smaller amount or the stock was no longer listed. This compares two delayed reports; it does not show the exact trade.

PUT and CALL are contract labels, not common-share holdings. A 13F reports these option rows but does not establish whether the strategy is bullish, bearish, hedged, or part of a spread. It also does not reveal strike, expiry, premium, or the rest of the manager's book.

• PUTMDT MEDTRONIC PLC$123.6 M
  LARGER REPORTED AMOUNT1,579,500 shPUT is the filed contract type.
• CALLRVMD REVOLUTION MEDICINES INC$85.2 M
  LARGER REPORTED AMOUNT454,900 shCALL is the filed contract type.
• CALLMDT MEDTRONIC PLC$65.0 M
  SMALLER REPORTED AMOUNT830,700 shCALL is the filed contract type.
• CALLINSM INSMED INC$38.1 M
  SMALLER REPORTED AMOUNT357,200 shCALL is the filed contract type.
• PUTRVMD REVOLUTION MEDICINES INC$31.4 M
  SMALLER REPORTED AMOUNT167,600 shPUT is the filed contract type.
• PUTTMDX TRANSMEDICS GROUP INC$29.8 M
  LARGER REPORTED AMOUNT449,300 shPUT is the filed contract type.
• CALLCANADIAN NAT RES LTD MED TER$29.3 M
  SMALLER REPORTED AMOUNT742,600 shCALL is the filed contract type.
• PUTINSM INSMED INC$29.2 M
  LARGER REPORTED AMOUNT273,700 shPUT is the filed contract type.
• CALLTMDX TRANSMEDICS GROUP INC$27.2 M
  LARGER REPORTED AMOUNT409,100 shCALL is the filed contract type.
• PUTCANADIAN NAT RES LTD MED TER$25.5 M
  LARGER REPORTED AMOUNT645,800 shPUT is the filed contract type.

92 more option comparison rows in this filing.