Wittenberg Investment Management, Inc. Merrimack Pharmaceuticals Inc Transaction History

Wittenberg Investment Management, Inc.

$250 Million
Q1 2024

A detailed history of Wittenberg Investment Management, Inc. transactions in Merrimack Pharmaceuticals Inc stock. As of the latest transaction made, Wittenberg Investment Management, Inc. holds 210,239 shares of MACK stock, worth $3.18 Million. This represents 1.24% of its overall portfolio holdings.

Number of Shares

210,239

Previous 210,239 -0.0%

Holding current value

$3.18 Million

Previous $2.82 Million 10.15%

% of portfolio

1.24%

Previous 1.15%

20 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q4 2023 Feb 13, 2024	BUY	$12.02 - $13.41 $6,010 - $6,705	500 Added 0.24%	210,239 $2.82 Million
Q3 2023 Nov 13, 2023	BUY	$11.6 - $12.52 $55,042 - $59,407	4,745 Added 2.31%	209,739 $2.59 Million
Q2 2023 Feb 09, 2024	BUY	$12.02 - $13.07 $84,140 - $91,490	7,000 Added 3.54%	204,994 $2.52 Million
Q2 2023 Aug 11, 2023	BUY	$12.02 - $13.07 $84,140 - $91,490	7,000 Added 3.54%	204,994 $2.52 Million
Q1 2023 Feb 09, 2024	BUY	$11.35 - $12.32 $77,180 - $83,776	6,800 Added 3.56%	197,994 $2.43 Million

Q1 2023 May 15, 2023	BUY	$11.35 - $12.32 $77,180 - $83,776	6,800 Added 3.56%	197,994 $2.43 Million
Q4 2022 Feb 09, 2024	SELL	$3.68 - $12.51 $68,245 - $231,997	-18,545 Reduced 8.84%	191,194 $2.19 Million
Q4 2022 Feb 06, 2023	BUY	$3.68 - $12.51 $9,200 - $31,275	2,500 Added 1.32%	191,194 $2.19 Million
Q3 2021 Nov 05, 2021	SELL	$4.3 - $6.39 $2,580 - $3,834	-600 Reduced 0.32%	188,694 $911,000
Q2 2021 Aug 12, 2021	BUY	$6.04 - $7.77 $18,699 - $24,055	3,096 Added 1.66%	189,294 $1.21 Million
Q4 2019 Feb 14, 2020	BUY	$3.15 - $4.67 $3,402 - $5,043	1,080 Added 0.58%	186,198 $587,000
Q3 2019 Nov 14, 2019	SELL	$4.16 - $6.05 $27,501 - $39,996	-6,611 Reduced 3.45%	185,118 $831,000
Q2 2019 Jul 24, 2019	SELL	$4.39 - $5.66 $107,067 - $138,041	-24,389 Reduced 11.29%	191,729 $1.16 Million
Q1 2019 May 14, 2019	SELL	$3.19 - $5.73 $20,253 - $36,379	-6,349 Reduced 2.85%	216,118 $1.5 Million
Q4 2018 Feb 12, 2019	SELL	$2.95 - $4.15 $95,240 - $133,982	-32,285 Reduced 12.67%	222,467 $859,000
Q3 2018 Nov 13, 2018	BUY	$3.91 - $4.66 $3,910 - $4,660	1,000 Added 0.39%	254,752 $1.36 Million
Q2 2018 Jul 31, 2018	BUY	$3.86 - $7.61 $503,502 - $992,656	130,441 Added 105.78%	253,752 $1.25 Million
Q1 2018 May 14, 2018	BUY	$6.24 - $9.15 $246,480 - $361,425	39,500 Added 47.13%	123,311 $993,000
Q4 2017 Feb 12, 2018	BUY	$7.99 - $11.87 $150,156 - $223,072	18,793 Added 28.9%	83,811 $859,000
Q3 2017 Nov 13, 2017	BUY	$9.13 - $11.72 $593,614 - $762,010	65,018	65,018 $945,000

Others Institutions Holding MACK

# of Institutions

Shares Held

9.18M

Call Options Held

64K

Put Options Held

3.2K

View Full List

About MERRIMACK PHARMACEUTICALS INC

Ticker MACK
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 13,410,200
Market Cap $203M
Description
Merrimack Pharmaceuticals, Inc. operates as a biopharmaceutical company. The company was incorporated in 1993 and is headquartered in Cambridge, Massachusetts.

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Wittenberg Investment Management, Inc. Merrimack Pharmaceuticals Inc Transaction History