Merrimack Pharmaceuticals Inc
- Stock Issuer and Owners
| Message |
|
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|
| Merrimack Pharmaceuticals Inc |
| Ticker | MACK |
| CIK # | 0001274792 |
| CUSIP | 590328100 |
| Sector | Life Sciences - Pharmaceutical Preparations |
| Address | One Kendall Square Suite B7201, Cambridge, MA 02139 |
| Source |
[EDGAR]
|
| Form 13F Holdings |
| Firm |
Period |
DFND |
Voting |
Shares |
| Newtyn Management LLC |
[2023-03-31]
|
SOLE |
1,873,694.0 |
1,873,694.0 |
| Western Standard LLC |
[2023-03-31]
|
SOLE |
1,672,463.0 |
1,672,463.0 |
| Madison Avenue Partners LP |
[2023-03-31]
|
SOLE |
553,085.0 |
553,085.0 |
| Dimensional Fund Advisors LP |
[2023-03-31]
|
SOLE |
446,405.0 |
460,754.0 |
| Vanguard Group Inc |
[2023-03-31]
|
SOLE |
0.0 |
453,814.0 |
| Susquehanna International Group LLP |
[2023-03-31]
|
DFND |
138,995.0 |
356,195.0 |
| Citadel Advisors LLC |
[2023-03-31]
|
DFND |
353,291.0 |
353,291.0 |
| Sepio Capital LP |
[2023-03-31]
|
SOLE |
294,545.0 |
294,545.0 |
| SIO Capital Management LLC |
[2023-03-31]
|
SOLE |
272,843.0 |
272,843.0 |
| BlackRock Inc. |
[2023-03-31]
|
SOLE |
221,134.0 |
222,253.0 |
| Invesco Ltd. |
[2023-03-31]
|
DFND |
0.0 |
210,507.0 |
| Wittenberg Investment Management Inc |
[2023-03-31]
|
OTR |
0.0 |
197,994.0 |
| Nantahala Capital Management LLC |
[2023-03-31]
|
SOLE |
191,266.0 |
191,266.0 |
| Geode Capital Management LLC |
[2023-03-31]
|
DFND |
130,164.0 |
130,164.0 |
| Boothbay Fund Management LLC |
[2023-03-31]
|
OTR |
0.0 |
117,436.0 |
| Marshall Wace LLP |
[2023-03-31]
|
OTR |
0.0 |
98,255.0 |
| Bank of New York Mellon Corp |
[2023-03-31]
|
DFND |
74,880.0 |
74,880.0 |
| Yakira Capital Management Inc |
[2023-03-31]
|
SOLE |
72,118.0 |
72,118.0 |
| Belvedere Trading LLC |
[2023-03-31]
|
SOLE |
62,088.0 |
62,088.0 |
| Morgan Stanley |
[2023-03-31]
|
DFND |
10,443.0 |
54,160.0 |
| State Street Corp |
[2023-03-31]
|
DFND |
50,556.0 |
50,556.0 |
| Millennium Management LLC |
[2023-03-31]
|
SOLE |
40,204.0 |
40,204.0 |
| Jane Street Group LLC |
[2023-03-31]
|
DFND |
37,307.0 |
37,307.0 |
| Goldman Sachs Group Inc |
[2023-03-31]
|
DFND |
34,898.0 |
34,898.0 |
| Bridgeway Capital Management LLC |
[2023-03-31]
|
SOLE |
34,200.0 |
34,200.0 |
| Northern Trust Corp |
[2023-03-31]
|
DFND |
0.0 |
27,948.0 |
| Brown Advisory Inc |
[2023-03-31]
|
DFND |
15,029.0 |
15,029.0 |
| Kennedy Capital Management LLC |
[2023-03-31]
|
SOLE |
13,758.0 |
13,758.0 |
| Barclays PLC |
[2023-03-31]
|
SOLE |
5,438.0 |
5,438.0 |
| Dimensional Fund Advisors LP |
[2023-03-31]
|
DFND |
0.0 |
5,386.0 |
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