SCM
MACK

Sio Capital Management’s Merrimack Pharmaceuticals, Inc. MACK Stock Holding History

Sio Capital Management’s Portfolio MACK Stock Details MACK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q1 		– Sell
-288,466
Closed -$3.87M – 64
2023
Q4 		$3.87M Hold
288,466
– – 0.88% 20
2023
Q3 		$3.56M Sell
288,466
-2,283
-0.8% -$27.6K 1.1% 27
2023
Q2 		$3.58M Buy
290,749
+17,906
+7% +$224K 0.91% 24
2023
Q1 		$3.35M Buy
272,843
+22,843
+9% +$268K 1.66% 15
2022
Q4 		$2.87M Buy
+250,000
New +$2.06M 1.06% 19

Other funds holding MACK

WSL
Western Standard LLC Los Angeles, California $295M AUM 40.98% 1-Year Est. Return
NM
Newtyn Management New York $801M AUM 23.14% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
MAP
Madison Avenue Partners New York $2.32B AUM 132.6% 1-Year Est. Return
SC
Sepio Capital Salt Lake City, Utah $1.99B AUM 22.34% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Sio Capital Management's MACK Position: Q1 2024 in Review

Sio Capital Management sold out of Merrimack Pharmaceuticals, Inc. (MACK) in Q1 2024, closing a stake of 288,466 shares — an estimated $3.87M sold.

Sio Capital Management first reported a position in MACK in Q4 2022 and held it in 5 quarters. The position peaked at $3.87M in Q4 2023. 70 funds tracked by Wall St. Rank hold MACK as of Q1 2024.

  • Sio Capital Management reported no remaining Merrimack Pharmaceuticals, Inc. position as of Q1 2024 after selling out during the quarter.
  • Sio Capital Management sold 288,466 Merrimack Pharmaceuticals, Inc. shares in Q1 2024, an estimated $3.87M.
  • Sio Capital Management first reported a position in Merrimack Pharmaceuticals, Inc. in Q4 2022 and held it in 5 quarters.
  • Sio Capital Management's Merrimack Pharmaceuticals, Inc. position peaked at $3.87M in Q4 2023.
  • 70 funds tracked by Wall St. Rank held Merrimack Pharmaceuticals, Inc. as of Q1 2024.

Based on Sio Capital Management's 13F filing for Q1 2024, filed 15 May 2024.