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United States Biotechnology & Medical Research

Merrimack Pharmaceuticals Inc (MACK)

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Ticker: MACK Exchange: NMS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Andersen Eric
See remarks
1 purchase — total 11,441 USD
Buy 28 Dec 2023
Value US$4,918,504.72 | Price 150.12 | Shares 19,209
Buy 26 Dec 2023
Value US$4,828,172.98 | Price 387.24 | Shares 32,313
Buy 7 Dec 2023
Value US$316,953.17 | Price 12.85 | Shares 24,666
Buy 7 Dec 2023
Value US$981,519.12 | Price 12.85 | Shares 76,384
Buy 17 Nov 2023
Value US$812.50 | Price 12.50 | Shares 65
Buy 17 Nov 2023
Value US$2,937.50 | Price 12.50 | Shares 235
Buy 14 Nov 2023
Value US$136,087.50 | Price 12.50 | Shares 10,887
Buy 14 Nov 2023
Value US$491,037.50 | Price 12.50 | Shares 39,283
Buy 13 Nov 2023
Value US$41,857.70 | Price 12.39 | Shares 3,379
Buy 13 Nov 2023
Value US$151,017.23 | Price 12.39 | Shares 12,191
Buy 10 Nov 2023
Value US$101,769.05 | Price 12.32 | Shares 8,259
Buy 10 Nov 2023
Value US$367,238.53 | Price 12.32 | Shares 29,803
Buy 9 Nov 2023
Value US$26,396.33 | Price 12.19 | Shares 2,165
Buy 9 Nov 2023
Value US$95,221.86 | Price 12.19 | Shares 7,810
Buy 8 Nov 2023
Value US$109,673.28 | Price 12.13 | Shares 9,040
Buy 8 Nov 2023
Value US$58,027.36 | Price 12.13 | Shares 4,783
Buy 11 Aug 2023
Value US$24,865.20 | Price 12.43 | Shares 2,000
Buy 10 Aug 2023
Value US$25,039.20 | Price 12.52 | Shares 2,000
Buy 8 Aug 2023
Value US$223,435.63 | Price 12.00 | Shares 18,626
Buy 8 Aug 2023
Value US$820,891.43 | Price 12.00 | Shares 68,431
Buy 7 Aug 2023
Value US$598,468.47 | Price 12.00 | Shares 49,857
Buy 7 Aug 2023
Value US$1,015,945.15 | Price 12.00 | Shares 84,636
Buy 21 Mar 2023
Value US$382,245.12 | Price 11.52 | Shares 33,181
Buy 21 Mar 2023
Value US$1,467,751.68 | Price 11.52 | Shares 127,409
Buy 31 Jan 2023
Value US$5,129.91 | Price 11.40 | Shares 450
Buy 31 Jan 2023
Value US$20,314.44 | Price 11.40 | Shares 1,782
Buy 30 Jan 2023
Value US$56,310.98 | Price 11.36 | Shares 4,958
Buy 30 Jan 2023
Value US$224,312.60 | Price 11.36 | Shares 19,750
Buy 27 Jan 2023
Value US$50,258.56 | Price 11.40 | Shares 4,410
Buy 27 Jan 2023
Value US$199,039.87 | Price 11.40 | Shares 17,465
Buy 12 Jan 2023
Value US$1,190,000.00 | Price 11.90 | Shares 100,000
Buy 6 Jan 2023
Value US$49,996.68 | Price 12.03 | Shares 4,156
Buy 3 Jan 2023
Value US$93,147.57 | Price 11.33 | Shares 8,219
Buy 3 Jan 2023
Value US$254,011.01 | Price 11.33 | Shares 22,413
Buy 3 Jan 2023
Value US$59,563.52 | Price 11.24 | Shares 5,300
Buy 30 Dec 2022
Value US$14,614.99 | Price 11.24 | Shares 1,300
Buy 30 Dec 2022
Value US$93,721.43 | Price 11.33 | Shares 8,270
Buy 30 Dec 2022
Value US$374,319.08 | Price 11.33 | Shares 33,030
Buy 29 Dec 2022
Value US$302,382.15 | Price 10.55 | Shares 28,661
Buy 29 Dec 2022
Value US$2,004,293.24 | Price 10.55 | Shares 189,975
Buy 13 Jul 2022
Value US$18,226.76 | Price 5.89 | Shares 3,095
Buy 12 Jul 2022
Value US$16,515.56 | Price 5.86 | Shares 2,816
Buy 11 Jul 2022
Value US$4,181.59 | Price 5.97 | Shares 700
Buy 8 Jul 2022
Value US$8,249.12 | Price 5.99 | Shares 1,378
Buy 7 Jul 2022
Value US$6,586.03 | Price 5.99 | Shares 1,100
Buy 30 Jun 2022
Value US$8,921.49 | Price 5.76 | Shares 1,550
Buy 24 Jun 2022
Value US$5,990.00 | Price 5.99 | Shares 1,000
Buy 23 Jun 2022
Value US$3,000.00 | Price 6.00 | Shares 500
Buy 17 Jun 2022
Value US$2,298.14 | Price 5.97 | Shares 385
Buy 17 Jun 2022
Value US$3,074.14 | Price 5.97 | Shares 515
Buy 16 Jun 2022
Value US$1,214.90 | Price 5.45 | Shares 223
Buy 16 Jun 2022
Value US$1,618.06 | Price 5.45 | Shares 297
Buy 15 Jun 2022
Value US$6,659.08 | Price 5.37 | Shares 1,241
Buy 15 Jun 2022
Value US$8,902.03 | Price 5.37 | Shares 1,659
Buy 14 Jun 2022
Value US$46,357.94 | Price 5.17 | Shares 8,961
Buy 14 Jun 2022
Value US$61,960.61 | Price 5.17 | Shares 11,977
Buy 13 Jun 2022
Value US$21,372.67 | Price 5.15 | Shares 4,151
Buy 13 Jun 2022
Value US$28,565.54 | Price 5.15 | Shares 5,548
Buy 10 Jun 2022
Value US$13,448.00 | Price 4.92 | Shares 2,733
Buy 10 Jun 2022
Value US$17,974.95 | Price 4.92 | Shares 3,653
Buy 9 Jun 2022
Value US$22,918.01 | Price 5.15 | Shares 4,452
Buy 8 Jun 2022
Value US$1,795.12 | Price 5.14 | Shares 349
Buy 7 Jun 2022
Value US$1,515.00 | Price 5.05 | Shares 300
Buy 25 May 2022
Value US$677.79 | Price 5.13 | Shares 132
Buy 24 May 2022
Value US$11,816.87 | Price 5.09 | Shares 2,323
Buy 19 May 2022
Value US$2,581.91 | Price 5.04 | Shares 512
Buy 18 May 2022
Value US$25,407.00 | Price 5.08 | Shares 5,000
Buy 17 May 2022
Value US$1,146.51 | Price 5.10 | Shares 225
Buy 13 May 2022
Value US$14.70 | Price 4.90 | Shares 3
Buy 12 May 2022
Value US$12,456.06 | Price 5.04 | Shares 2,471
Buy 21 Apr 2022
Value US$30,001.00 | Price 6.00 | Shares 5,000
Buy 31 Mar 2022
Value US$1,853.01 | Price 6.18 | Shares 300
Buy 30 Mar 2022
Value US$998.20 | Price 6.20 | Shares 161
Buy 28 Mar 2022
Value US$30,821.50 | Price 6.16 | Shares 5,000
Buy 22 Mar 2022
Value US$2,445.52 | Price 6.11 | Shares 400
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2023-12-28 2023-12-28 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
19,209 +20.5%
150.12
US$4,918,505 		19,209 +20.5% 150.12 US$4,918,505
2023-12-28 2023-12-26 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
32,313 +16.0%
387.24
US$4,828,173 		32,313 +16.0% 387.24 US$4,828,173
2023-12-11 2023-12-07 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
49,236 -19.4%
227.15
US$363,711 		49,236 -19.4% 227.15 US$363,711
2023-12-11 2023-12-07 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
76,384 +4.6%
12.85
US$981,519 		76,384 +4.6% 12.85 US$981,519
2023-11-20 2023-11-17 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
65 +0.0%
12.50
US$812 		65 +0.0% 12.50 US$812
2023-11-20 2023-11-17 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
235 +0.0%
12.50
US$2,938 		235 +0.0% 12.50 US$2,938
2023-11-16 2023-11-14 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
10,887 +2.4%
12.50
US$136,088 		10,887 +2.4% 12.50 US$136,088
2023-11-16 2023-11-14 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
39,283 +2.4%
12.50
US$491,038 		39,283 +2.4% 12.50 US$491,038
2023-11-14 2023-11-13 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
3,379 +0.8%
12.39
US$41,858 		3,379 +0.8% 12.39 US$41,858
2023-11-14 2023-11-13 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
12,191 +0.8%
12.39
US$151,017 		12,191 +0.8% 12.39 US$151,017
2023-11-14 2023-11-10 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
8,259 +1.9%
12.32
US$101,769 		8,259 +1.9% 12.32 US$101,769
2023-11-14 2023-11-10 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
29,803 +1.9%
12.32
US$367,239 		29,803 +1.9% 12.32 US$367,239
2023-11-13 2023-11-09 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
2,165 +0.5%
12.19
US$26,396 		2,165 +0.5% 12.19 US$26,396
2023-11-13 2023-11-09 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
7,810 +0.5%
12.19
US$95,222 		7,810 +0.5% 12.19 US$95,222
2023-11-13 2023-11-08 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
9,040 +2.1%
12.13
US$109,673 		9,040 +2.1% 12.13 US$109,673
2023-11-13 2023-11-08 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
4,783 +0.3%
12.13
US$58,027 		4,783 +0.3% 12.13 US$58,027
2023-08-14 2023-08-11 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
2,000 +1.5%
12.43
US$24,865 		2,000 +1.5% 12.43 US$24,865
2023-08-14 2023-08-10 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
2,000 +1.5%
12.52
US$25,039 		2,000 +1.5% 12.52 US$25,039
2023-08-09 2023-08-08 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
18,626 +4.6%
12.00
US$223,436 		18,626 +4.6% 12.00 US$223,436
2023-08-09 2023-08-08 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
68,431 +4.6%
12.00
US$820,891 		68,431 +4.6% 12.00 US$820,891
2023-08-09 2023-08-07 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
49,857 +13.9%
12.00
US$598,468 		49,857 +13.9% 12.00 US$598,468
2023-08-09 2023-08-07 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
84,636 +6.0%
12.00
US$1,015,945 		84,636 +6.0% 12.00 US$1,015,945
2023-03-22 2023-03-21 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
33,181 +10.2%
11.52
US$382,245 		33,181 +10.2% 11.52 US$382,245
2023-03-22 2023-03-21 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
127,409 +9.9%
11.52
US$1,467,752 		127,409 +9.9% 11.52 US$1,467,752
2023-02-01 2023-01-31 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
450 +0.1%
11.40
US$5,130 		450 +0.1% 11.40 US$5,130
2023-02-01 2023-01-31 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
1,782 +0.1%
11.40
US$20,314 		1,782 +0.1% 11.40 US$20,314
2023-02-01 2023-01-30 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
4,958 +1.6%
11.36
US$56,311 		4,958 +1.6% 11.36 US$56,311
2023-02-01 2023-01-30 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
19,750 +1.6%
11.36
US$224,313 		19,750 +1.6% 11.36 US$224,313
2023-01-31 2023-01-27 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
4,410 +1.4%
11.40
US$50,259 		4,410 +1.4% 11.40 US$50,259
2023-01-31 2023-01-27 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
17,465 +1.4%
11.40
US$199,040 		17,465 +1.4% 11.40 US$199,040
2023-01-17 2023-01-12 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
100,000 +9.8%
11.90
US$1,190,000 		100,000 +9.8% 11.90 US$1,190,000
2023-01-09 2023-01-06 B Purchase
2.2
Radeljevic Ana
Non-Executive Director
4,156 +inf%
12.03
US$49,997 		4,156 +inf% 12.03 US$49,997
2023-01-04 2023-01-03 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
8,219 +2.7%
11.33
US$93,148 		8,219 +2.7% 11.33 US$93,148
2023-01-04 2023-01-03 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
22,413 +1.8%
11.33
US$254,011 		22,413 +1.8% 11.33 US$254,011
2023-01-04 2023-01-03 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
5,300 +0.5%
11.24
US$59,564 		5,300 +0.5% 11.24 US$59,564
2023-01-04 2022-12-30 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
1,300 +0.1%
11.24
US$14,615 		1,300 +0.1% 11.24 US$14,615
2023-01-03 2022-12-30 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
8,270 +2.8%
11.33
US$93,721 		8,270 +2.8% 11.33 US$93,721
2023-01-03 2022-12-30 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
33,030 +2.8%
11.33
US$374,319 		33,030 +2.8% 11.33 US$374,319
2023-01-03 2022-12-29 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
28,661 +10.6%
10.55
US$302,382 		28,661 +10.6% 10.55 US$302,382
2023-01-03 2022-12-29 B Purchase
4.1
Andersen Eric

See remarks

Non-Executive Director
189,975 +19.0%
10.55
US$2,004,293 		189,975 +19.0% 10.55 US$2,004,293
2022-07-15 2022-07-13 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
3,095 +0.4%
5.89
US$18,227 		3,095 +0.4% 5.89 US$18,227
2022-07-13 2022-07-12 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
2,816 +0.4%
5.86
US$16,516 		2,816 +0.4% 5.86 US$16,516
2022-07-13 2022-07-11 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
700 +0.1%
5.97
US$4,182 		700 +0.1% 5.97 US$4,182
2022-07-11 2022-07-08 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
1,378 +0.2%
5.99
US$8,249 		1,378 +0.2% 5.99 US$8,249
2022-07-11 2022-07-07 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
1,100 +0.1%
5.99
US$6,586 		1,100 +0.1% 5.99 US$6,586
2022-07-05 2022-06-30 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
1,550 +0.2%
5.76
US$8,921 		1,550 +0.2% 5.76 US$8,921
2022-06-27 2022-06-24 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
1,000 +0.1%
5.99
US$5,990 		1,000 +0.1% 5.99 US$5,990
2022-06-27 2022-06-23 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
500 +0.1%
6.00
US$3,000 		500 +0.1% 6.00 US$3,000
2022-06-21 2022-06-17 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
385 +0.1%
5.97
US$2,298 		385 +0.1% 5.97 US$2,298
2022-06-21 2022-06-17 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
515 +0.1%
5.97
US$3,074 		515 +0.1% 5.97 US$3,074
2022-06-21 2022-06-16 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
223 +0.0%
5.45
US$1,215 		223 +0.0% 5.45 US$1,215
2022-06-21 2022-06-16 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
297 +0.0%
5.45
US$1,618 		297 +0.0% 5.45 US$1,618
2022-06-16 2022-06-15 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
1,241 +0.2%
5.37
US$6,659 		1,241 +0.2% 5.37 US$6,659
2022-06-16 2022-06-15 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
1,659 +0.2%
5.37
US$8,902 		1,659 +0.2% 5.37 US$8,902
2022-06-16 2022-06-14 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
8,961 +1.2%
5.17
US$46,358 		8,961 +1.2% 5.17 US$46,358
2022-06-16 2022-06-14 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
11,977 +1.2%
5.17
US$61,961 		11,977 +1.2% 5.17 US$61,961
2022-06-14 2022-06-13 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
4,151 +0.6%
5.15
US$21,373 		4,151 +0.6% 5.15 US$21,373
2022-06-14 2022-06-13 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
5,548 +0.6%
5.15
US$28,566 		5,548 +0.6% 5.15 US$28,566
2022-06-14 2022-06-10 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
2,733 +0.4%
4.92
US$13,448 		2,733 +0.4% 4.92 US$13,448
2022-06-14 2022-06-10 B Purchase
4.2
Levy Noah G.

See remarks

Non-Executive Director
3,653 +0.4%
4.92
US$17,975 		3,653 +0.4% 4.92 US$17,975
2022-06-13 2022-06-09 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
4,452 +3.5%
5.15
US$22,918 		4,452 +3.5% 5.15 US$22,918
2022-06-09 2022-06-08 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
349 +0.3%
5.14
US$1,795 		349 +0.3% 5.14 US$1,795
2022-06-09 2022-06-07 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
300 +0.2%
5.05
US$1,515 		300 +0.2% 5.05 US$1,515
2022-05-26 2022-05-25 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
132 +0.1%
5.13
US$678 		132 +0.1% 5.13 US$678
2022-05-26 2022-05-24 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
2,323 +1.9%
5.09
US$11,817 		2,323 +1.9% 5.09 US$11,817
2022-05-23 2022-05-19 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
512 +0.4%
5.04
US$2,582 		512 +0.4% 5.04 US$2,582
2022-05-19 2022-05-18 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
5,000 +4.2%
5.08
US$25,407 		5,000 +4.2% 5.08 US$25,407
2022-05-19 2022-05-17 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
225 +0.2%
5.10
US$1,147 		225 +0.2% 5.10 US$1,147
2022-05-16 2022-05-13 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
3 +0.0%
4.90
US$15 		3 +0.0% 4.90 US$15
2022-05-16 2022-05-12 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
2,471 +2.1%
5.04
US$12,456 		2,471 +2.1% 5.04 US$12,456
2022-04-25 2022-04-21 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
5,000 +4.5%
6.00
US$30,001 		5,000 +4.5% 6.00 US$30,001
2022-04-01 2022-03-31 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
300 +0.3%
6.18
US$1,853 		300 +0.3% 6.18 US$1,853
2022-04-01 2022-03-30 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
161 +0.1%
6.20
US$998 		161 +0.1% 6.20 US$998
2022-03-29 2022-03-28 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
5,000 +4.8%
6.16
US$30,822 		5,000 +4.8% 6.16 US$30,822
2022-03-24 2022-03-22 B Purchase
3.0
CROCKER GARY L

See Remarks

Executive Director
400 +0.4%
6.11
US$2,446 		400 +0.4% 6.11 US$2,446
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