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This page summarizes the AMAM holdings changes quarter over quarter among those 13F filers that have reported for
the 12/31/2023 period, comparing share count change from 9/30/2023 to 12/31/2023.
Share count is compared over these two periods to provide an indication of whether AMAM is being accumulated or
sold by institutions that file their holdings via 13F filings (and as always, when considering this data it is important to be mindful of the
long only reporting requirement).
| Filer | 9/30/2023
Share Count | 12/31/2023
Share Count | Change | % Change |
|---|
| 13F Filers Increasing AMAM Share Count |
|---|
| Bank of America Corp DE |
500 |
36,733 |
+36,233 |
+7246.60% |
| Tower Research Capital LLC TRC |
235 |
5,614 |
+5,379 |
+2288.94% |
| Logos Global Management LP |
115,000 |
2,100,000 |
+1,985,000 |
+1726.09% |
| Royal Bank of Canada |
6,500 |
70,094 |
+63,594 |
+978.37% |
| Alliancebernstein L.P. |
47,296 |
258,364 |
+211,068 |
+446.27% |
| Monashee Investment Management LLC |
70,000 |
207,500 |
+137,500 |
+196.43% |
| Citadel Advisors LLC |
768,825 |
2,042,212 |
+1,273,387 |
+165.63% |
| Geode Capital Management LLC |
50,140 |
81,157 |
+31,017 |
+61.86% |
| Ally Bridge Group NY LLC |
281,089 |
385,383 |
+104,294 |
+37.10% |
| Price T Rowe Associates Inc. MD |
821,564 |
1,084,247 |
+262,683 |
+31.97% |
| The Manufacturers Life Insurance Company |
59,282 |
77,472 |
+18,190 |
+30.68% |
| TD Asset Management Inc. |
110,456 |
140,256 |
+29,800 |
+26.98% |
| Paradigm Biocapital Advisors LP |
3,488,596 |
4,352,689 |
+864,093 |
+24.77% |
| Macquarie Group Ltd. |
250,000 |
300,000 |
+50,000 |
+20.00% |
| Cormorant Asset Management LP |
9,923,689 |
11,231,000 |
+1,307,311 |
+13.17% |
| D. E. Shaw & Co. Inc. |
4,004,513 |
4,240,486 |
+235,973 |
+5.89% |
| HighVista Strategies LLC |
193,701 |
203,122 |
+9,421 |
+4.86% |
| Morgan Stanley |
24,571 |
25,276 |
+705 |
+2.87% |
| Virtus ETF Advisers LLC |
6,793 |
6,878 |
+85 |
+1.25% |
| 13F Filers Reporting New Positions In AMAM |
|---|
| Proequities Inc. |
0 |
0 |
UNCH |
100% |
| Fred Alger Management LLC |
0 |
32,886 |
+32,886 |
+100% |
| JPMorgan Chase & Co. |
0 |
12,312 |
+12,312 |
+100% |
| Vanguard Group Inc. |
0 |
1,399,642 |
+1,399,642 |
+100% |
| Barclays PLC |
0 |
199,950 |
+199,950 |
+100% |
| Citigroup Inc. |
0 |
18,774 |
+18,774 |
+100% |
| Goldman Sachs Group Inc. |
0 |
399,648 |
+399,648 |
+100% |
| Tudor Investment Corp Et Al |
0 |
10,800 |
+10,800 |
+100% |
| Renaissance Technologies LLC |
0 |
53,900 |
+53,900 |
+100% |
| Orbimed Advisors LLC |
0 |
296,000 |
+296,000 |
+100% |
| Balyasny Asset Management LLC |
0 |
2,154,700 |
+2,154,700 |
+100% |
| Perceptive Advisors LLC |
0 |
78,811 |
+78,811 |
+100% |
| BlackRock Inc. |
0 |
501,604 |
+501,604 |
+100% |
| HealthInvest Partners AB |
0 |
57,847 |
+57,847 |
+100% |
| Susquehanna International Group LLP |
0 |
49,203 |
+49,203 |
+100% |
| Daiwa Securities Group Inc. |
0 |
258 |
+258 |
+100% |
| Virtu Financial LLC |
0 |
20,386 |
+20,386 |
+100% |
| Mirabella Financial Services LLP |
0 |
10,040 |
+10,040 |
+100% |
| Jane Street Group LLC |
0 |
295,642 |
+295,642 |
+100% |
| Lighthouse Investment Partners LLC |
0 |
88,925 |
+88,925 |
+100% |
| Engineers Gate Manager LP |
0 |
12,388 |
+12,388 |
+100% |
| Bayesian Capital Management LP |
0 |
15,804 |
+15,804 |
+100% |
| Schonfeld Strategic Advisors LLC |
0 |
263,743 |
+263,743 |
+100% |
| Woodline Partners LP |
0 |
1,255,148 |
+1,255,148 |
+100% |
| Old Well Partners LLC |
0 |
14,400 |
+14,400 |
+100% |
| WuXi AppTec Co. Ltd. |
0 |
1,000,000 |
+1,000,000 |
+100% |
| Deep Track Capital LP |
0 |
3,710,412 |
+3,710,412 |
+100% |
| China Universal Asset Management Co. Ltd. |
0 |
7,303 |
+7,303 |
+100% |
| Nextech Invest AG |
0 |
3,129,300 |
+3,129,300 |
+100% |
| StemPoint Capital LP |
0 |
126,101 |
+126,101 |
+100% |
| Saturn V Capital Management LLC |
0 |
52,781 |
+52,781 |
+100% |
| Altitude Crest Partners Inc. |
0 |
43,100 |
+43,100 |
+100% |
| GAMMA Investing LLC |
0 |
491 |
+491 |
+100% |
| Sierra Summit Advisors LLC |
0 |
37,237 |
+37,237 |
+100% |
| 13F Filers With Unchanged Share Count |
|---|
| VR Adviser LLC |
2,070,000 |
2,070,000 |
UNCH |
0.00% |
| Darwin Global Management Ltd. |
16,688,636 |
16,688,636 |
UNCH |
0.00% |
| 13F Filers Decreasing AMAM Share Count |
|---|
| Simplex Trading LLC |
68,551 |
7,657 |
-60,894 |
-88.83% |
| Federated Hermes Inc. |
2,395,867 |
330,949 |
-2,064,918 |
-86.19% |
| ExodusPoint Capital Management LP |
493,393 |
140,842 |
-352,551 |
-71.45% |
| NWI Management LP |
160,935 |
53,645 |
-107,290 |
-66.67% |
| Parkman Healthcare Partners LLC |
150,000 |
87,678 |
-62,322 |
-41.55% |
| UBS Group AG |
5,574 |
3,840 |
-1,734 |
-31.11% |
| Squarepoint Ops LLC |
22,132 |
15,470 |
-6,662 |
-30.10% |
| FMR LLC |
1,761,058 |
1,474,258 |
-286,800 |
-16.29% |
| Cutler Group LP |
2,800 |
2,380 |
-420 |
-15.00% |
| US Bancorp DE |
1,018 |
906 |
-112 |
-11.00% |
| Ghost Tree Capital LLC |
525,000 |
475,000 |
-50,000 |
-9.52% |
| Millennium Management LLC |
464,633 |
432,709 |
-31,924 |
-6.87% |
| State Street Corp |
50,400 |
50,015 |
-385 |
-0.76% |
| 13F Filers Exiting AMAM |
|---|
| Commodore Capital LP |
3,518,556 |
0 |
-3,518,556 |
-100.00% |
| Hillhouse Capital Advisors LTD. |
31,735 |
0 |
-31,735 |
-100.00% |
| Holocene Advisors LP |
486,562 |
0 |
-486,562 |
-100.00% |
| Bank of New York Mellon Corp |
47,433 |
0 |
-47,433 |
-100.00% |
| Apis Capital Advisors LLC |
34,000 |
0 |
-34,000 |
-100.00% |
| Alps Advisors Inc. |
45,531 |
0 |
-45,531 |
-100.00% |
| Group One Trading L.P. |
2,155 |
0 |
-2,155 |
-100.00% |
| Legal & General Group Plc |
1,381 |
0 |
-1,381 |
-100.00% |
| First Manhattan Co. |
135,003 |
0 |
-135,003 |
-100.00% |
See Summary: Institutional Holders of AMAM
See Details: Top 10 Hedge Funds Holding AMAM
Also See: AMAM Insider Buying
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