DS
MACK

David Shaw’s Merrimack Pharmaceuticals, Inc. MACK Stock Holding History

David Shaw’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
2019
Q3 		– Sell
-24,895
Closed -$119K – 4172
2019
Q2 		$119K Sell
24,895
-110,648
-82% -$524K ﹤0.01% 3534
2019
Q1 		$741K Buy
135,543
+65,480
+93% +$301K ﹤0.01% 2776
2018
Q4 		$213K Buy
70,063
+30,724
+78% +$107K ﹤0.01% 3517
2018
Q3 		$165K Buy
+39,339
New +$166K ﹤0.01% 3581
2017
Q3 		– Sell
-2,398
Closed -$23K – 3734
2017
Q2 		$23K Sell
2,398
-7,053
-75% -$144K ﹤0.01% 3324
2017
Q1 		$229K Buy
9,451
+8,025
+563% +$201K ﹤0.01% 3075
2016
Q4 		$46K Sell
1,426
-1,701
-54% -$72.5K ﹤0.01% 3388
2016
Q3 		$156K Buy
+3,127
New +$130K ﹤0.01% 3236
2015
Q4 		– Sell
-5,232
Closed -$350K – 4070
2015
Q3 		$350K Buy
+5,232
New +$427K ﹤0.01% 3275
2015
Q1 		– Sell
-8,686
Closed -$772K – 4216
2014
Q4 		$772K Sell
8,686
-12,884
-60% -$939K ﹤0.01% 3017
2014
Q3 		$1.49M Buy
+21,570
New +$1.15M ﹤0.01% 2466
2014
Q1 		– Sell
-2,683
Closed -$113K – 4835
2013
Q4 		$113K Sell
2,683
-228
-8% -$6.61K ﹤0.01% 4359
2013
Q3 		$87K Buy
2,911
+1,405
+93% +$49.2K ﹤0.01% 4200
2013
Q2 		$80K Buy
+1,506
New +$66K ﹤0.01% 3890

Other funds holding MACK

2L
22NW LP Seattle, Washington $105M AUM 38.33% 1-Year Est. Return
NM
Newtyn Management New York $801M AUM 23.14% 1-Year Est. Return
WSL
Western Standard LLC Los Angeles, California $295M AUM 40.98% 1-Year Est. Return
NCM
Nantahala Capital Management New Canaan, Connecticut $3.01B AUM 119.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
SC
Sepio Capital Salt Lake City, Utah $1.99B AUM 22.34% 1-Year Est. Return
WIM
Wittenberg Investment Management Carlisle, Massachusetts $292M AUM 36.12% 1-Year Est. Return
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $52.8B AUM 58.98% 1-Year Est. Return

David Shaw's MACK Position: Q3 2019 in Review

David Shaw sold out of Merrimack Pharmaceuticals, Inc. (MACK) in Q3 2019, closing a stake of 24,895 shares — an estimated $119K sold.

David Shaw first reported a position in MACK in Q2 2013 and held it in 14 quarters. The position peaked at $1.49M in Q3 2014. 47 funds tracked by Wall St. Rank hold MACK as of Q3 2019.

  • David Shaw reported no remaining Merrimack Pharmaceuticals, Inc. position as of Q3 2019 after selling out during the quarter.
  • David Shaw sold 24,895 Merrimack Pharmaceuticals, Inc. shares in Q3 2019, an estimated $119K.
  • David Shaw first reported a position in Merrimack Pharmaceuticals, Inc. in Q2 2013 and held it in 14 quarters.
  • David Shaw's Merrimack Pharmaceuticals, Inc. position peaked at $1.49M in Q3 2014.
  • 47 funds tracked by Wall St. Rank held Merrimack Pharmaceuticals, Inc. as of Q3 2019.

Based on D.E. Shaw & Co's 13F filing for Q3 2019, filed 14 Nov 2019.