Spero Therapeutics Inc
- Stock Issuer and Owners
| Message |
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| Spero Therapeutics Inc |
| Ticker | SPRO |
| CIK # | 0001701108 |
| CUSIP | 84833T103 |
| Sector | Life Sciences - Pharmaceutical Preparations |
| Address | 675 Massachusetts Avenue 14th Floor, Cambridge, MA 02139 |
| Source |
[EDGAR]
|
| Form 13F Holdings |
| Firm |
Period |
DFND |
Voting |
Shares |
| Pfizer Inc |
[2025-06-30]
|
SOLE |
2,362,348 |
2,362,348 |
| Vanguard Group Inc |
[2025-06-30]
|
SOLE |
0 |
1,940,219 |
| Anson Funds Management LP |
[2025-06-30]
|
DFND |
1,615,469 |
1,615,469 |
| Alphabet Inc. |
[2025-06-30]
|
DFND |
0 |
889,979 |
| Renaissance Technologies LLC |
[2025-06-30]
|
SOLE |
832,165 |
832,165 |
| Schonfeld Strategic Advisors LLC |
[2025-06-30]
|
SOLE |
510,834 |
510,834 |
| Geode Capital Management LLC |
[2025-06-30]
|
DFND |
510,699 |
510,699 |
| BlackRock, Inc. |
[2025-06-30]
|
SOLE |
433,897 |
434,768 |
| Monimus Capital Management LP |
[2025-06-30]
|
SOLE |
310,908 |
310,908 |
| Citadel Advisors LLC |
[2025-06-30]
|
DFND |
240,986 |
240,986 |
| Informed Momentum Co LLC |
[2025-06-30]
|
SOLE |
239,140 |
239,140 |
| Stonepine Capital Management LLC |
[2025-06-30]
|
SOLE |
156,888 |
156,888 |
| State Street Corp |
[2025-06-30]
|
DFND |
153,451 |
153,451 |
| Ionic Capital Management LLC |
[2025-06-30]
|
DFND |
150,000 |
150,000 |
| Adar1 Capital Management LLC |
[2025-06-30]
|
SOLE |
143,917 |
143,917 |
| Susquehanna International Group LLP |
[2025-06-30]
|
OTR |
69,814 |
118,514 |
| Bridgeway Capital Management LLC |
[2025-06-30]
|
SOLE |
114,800 |
114,800 |
| Acadian Asset Management LLC |
[2025-06-30]
|
DFND |
112,889 |
112,889 |
| Northern Trust Corp |
[2025-06-30]
|
DFND |
100,831 |
100,831 |
| XTX Topco Ltd |
[2025-06-30]
|
DFND |
34,551 |
34,551 |
| Capital Asset Advisory Services LLC |
[2025-06-30]
|
SOLE |
0 |
32,548 |
| Axxcess Wealth Management LLC |
[2025-06-30]
|
SOLE |
0 |
32,548 |
| Quadrature Capital Ltd |
[2025-06-30]
|
OTR |
0 |
31,205 |
| Simplex Trading LLC |
[2025-06-30]
|
SOLE |
30,322 |
30,322 |
| Three Seasons Wealth, LLC |
[2025-06-30]
|
SOLE |
30,000 |
30,000 |
| Charles Schwab Investment Management Inc |
[2025-06-30]
|
SOLE |
28,565 |
28,565 |
| Cubist Systematic Strategies, LLC |
[2025-06-30]
|
DFND |
0 |
27,140 |
| Invesco Ltd. |
[2025-06-30]
|
DFND |
0 |
14,968 |
| Vanguard Group Inc |
[2025-06-30]
|
DFND |
0 |
10,162 |
| Texas Yale Capital Corp |
[2025-06-30]
|
SOLE |
10,000 |
10,000 |
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