PARATEK PHARMACEUTICALS INC PRTK
COM · Common Stock · CUSIP 699374302
73
institutional holders
22.3m
shares reported held*
$57.3mreported value*
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($2.5m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $2.57. Options: 5 managers hold calls ($411.0k notional), 0 hold puts (—).
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | — | $206.0k80.2k shares |
| GROUP ONE TRADING LLC | — | $120.0k46.8k shares |
| SIMPLEX TRADING, LLC | — | $48.0k18.7k shares |
| CITADEL ADVISORS LLC | — | $37.0k14.4k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | — | $00 shares |
Biggest puts
| None |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Holders, Q3 2022
| Manager | Shares | Change |
|---|---|---|
| AIGH Capital Management LLC 3.93% of their portfolio | 3.9m $10.0m | — |
| VANGUARD GROUP INC 0.00% of their portfolio | 2.2m $5.6m | — |
| Omega Fund Management, LLC 1.86% of their portfolio | 2.0m $5.1m | — |
| GENERAL AMERICAN INVESTORS CO INC 0.51% of their portfolio | 1.9m $4.9m | — |
| Rock Springs Capital Management LP 0.12% of their portfolio | 1.7m $4.5m | — |
| Bruce & Co., Inc. 1.10% of their portfolio | 1.6m $4.0m | — |
| BlackRock Inc. 0.00% of their portfolio | 1.2m $3.1m | — |
| Abingworth LLP 0.91% of their portfolio | 1.0m $2.7m | — |
| Worth Venture Partners, LLC 1.56% of their portfolio | 969.7k $2.5m | — |
| 1492 Capital Management LLC 0.93% of their portfolio | 501.1k $1.3m | — |
| J. Goldman & Co LP 0.09% of their portfolio | 459.0k $1.2m | — |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 441.9k $1.1m | — |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 441.5k $1.1m | — |
| CM Management, LLC 1.15% of their portfolio | 400.0k $1.0m | — |
| Telemetry Investments, L.L.C. 1.45% of their portfolio | 345.0k $887.0k | — |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 309.6k $795.0k | — |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 303.4k $780.0k | — |
| Trellus Management Company, LLC 1.32% of their portfolio | 295.0k $758.0k | — |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 294.1k $756.0k | — |
| BROWN BROTHERS HARRIMAN & CO 0.01% of their portfolio | 287.9k $740.0k | — |
| SIMPLEX TRADING, LLC 0.03% of their portfolio | 258.3k $663.0k | — |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 228.8k $588.0k | — |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 214.4k $551.0k | — |
| STATE STREET CORP 0.00% of their portfolio | 208.1k $535.0k | — |
| MORGAN STANLEY 0.00% of their portfolio | 196.7k $505.0k | — |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 122.7k $315.0k | — |
| NEXPOINT ASSET MANAGEMENT, L.P. 0.02% of their portfolio | 114.8k $295.0k | — |
| NORTHERN TRUST CORP 0.00% of their portfolio | 111.2k $286.0k | — |
| Ergoteles LLC 0.01% of their portfolio | 108.9k $280.0k | — |
| GROUP ONE TRADING LLC 0.01% of their portfolio | 103.0k $265.0k | — |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 77.8k $200.0k | — |
| XTX Topco Ltd 0.04% of their portfolio | 62.5k $161.0k | — |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 62.0k $159.0k | — |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 59.4k $153.0k | — |
| PERKINS CAPITAL MANAGEMENT INC 0.14% of their portfolio | 49.7k $128.0k | — |
| WATER ISLAND CAPITAL LLC 0.01% of their portfolio | 49.5k $127.0k | — |
| GAMCO INVESTORS, INC. ET AL 0.00% of their portfolio | 49.5k $127.0k | — |
| Baird Financial Group, Inc. 0.00% of their portfolio | 49.1k $126.0k | — |
| GABELLI FUNDS LLC 0.00% of their portfolio | 47.5k $122.0k | — |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.01% of their portfolio | 47.2k $121.0k | — |
| B. Riley Wealth Advisors, Inc. 0.00% of their portfolio | 46.2k $119.0k | — |
| Teton Advisors, Inc. 0.03% of their portfolio | 44.0k $113.0k | — |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 42.2k $108.0k | — |
| LPL Financial LLC 0.00% of their portfolio | 42.0k $108.0k | — |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 41.9k $108.0k | — |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 41.3k $106.0k | — |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 39.8k $102.0k | — |
| HighTower Advisors, LLC 0.00% of their portfolio | 33.0k $85.0k | — |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 24.5k $63.1k | — |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 21.4k $54.0k | — |
| Bank of New York Mellon Corp 0.00% of their portfolio | 17.9k $46.0k | — |
| LMR Partners LLP 0.00% of their portfolio | 17.5k $45.0k | — |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 17.4k $45.0k | — |
| ETF MANAGERS GROUP, LLC 0.00% of their portfolio | 16.2k $42.0k | — |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 14.0k $36.0k | — |
| Walleye Capital LLC 0.00% of their portfolio | 12.0k $31.0k | — |
| Prospera Financial Services Inc 0.00% of their portfolio | 11.5k $29.0k | — |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 9.9k $26.0k | — |
| Quantbot Technologies LP 0.00% of their portfolio | 5.7k $14.0k | — |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 4.8k $13.0k | — |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 4.0k $10.0k | — |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 3.8k $10.0k | — |
| FMR LLC 0.00% of their portfolio | 2.4k $6.0k | — |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 1.2k $3.0k | — |
| UBS Group AG 0.00% of their portfolio | 1.2k $3.0k | — |
| SILVERBACK ASSET MANAGEMENT LLC 0.00% of their portfolio | 986 $2.5k | — |
| CITIGROUP INC 0.00% of their portfolio | 631 $2.0k | — |
| China Universal Asset Management Co., Ltd. 0.00% of their portfolio | 514 $1.0k | — |
| Key Financial Inc 0.00% of their portfolio | 475 $1.0k | — |
| Daiwa Securities Group Inc. 0.00% of their portfolio | 86 $0 | — |
| American Portfolios Advisors 0.00% of their portfolio | 16 $41 | — |
| HARBOUR INVESTMENTS, INC. 0.00% of their portfolio | 2 $0 | — |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | — |