PARATEK PHARMACEUTICALS INC PRTK
COM · Common Stock · CUSIP 699374302
64
institutional holders
-13 vs Q4 2022
22.6m
shares reported held*
$57.4mreported value*
7 new
18 added
22 reduced
18 sold out
net bought ≈ $5.2m (+2.0m shares)
* 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 ($1.7m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $2.54. Options: 4 managers hold calls ($172.0k notional), 1 hold puts ($23.9k).
Trends to Q1 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 73 |
| Q4 2022 | 77 |
| Q1 2023 | 64 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Bought or addedCut or sold out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 31 | 37 |
| Q1 2023 | 25 | 40 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
CallsPuts
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $411.0k | $0 | 0.00 |
| Q4 2022 | $107.5k | $14.4k | 0.13 |
| Q1 2023 | $172.0k | $23.9k | 0.14 |
Biggest buyers
| NEXPOINT ASSET MANAGEMENT, L.P. | Added | +2.4m |
| Carlyle Group Inc. | New | +1.0m |
| J. Goldman & Co LP | Added | +865.1k |
| Eversept Partners, LP | New | +638.5k |
| Assenagon Asset Management S.A. | Added | +237.0k |
| MORGAN STANLEY | Added | +176.1k |
| CM Management, LLC | Added | +105.0k |
| GENERAL AMERICAN INVESTORS CO INC | Added | +30.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +29.8k |
| VANGUARD GROUP INC | Added | +28.9k |
Biggest sellers
| AIGH Capital Management LLC | Reduced | -1.5m |
| MILLENNIUM MANAGEMENT LLC | Reduced | -497.1k |
| Worth Venture Partners, LLC | Reduced | -364.6k |
| CITADEL ADVISORS LLC | Sold out | -203.2k |
| Trellus Management Company, LLC | Reduced | -168.0k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Reduced | -115.0k |
| BlackRock Inc. | Reduced | -111.8k |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | -107.3k |
| TWO SIGMA ADVISERS, LP | Reduced | -85.7k |
| XTX Topco Ltd | Sold out | -80.4k |
Biggest calls
| SIMPLEX TRADING, LLC | Reduced | $94.0k37.3k shares |
| CITADEL ADVISORS LLC | Added | $46.2k18.2k shares |
| GROUP ONE TRADING LLC | Added | $31.8k12.5k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $23.9k9.4k shares |
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, Q1 2023
| Manager | Shares | Change |
|---|---|---|
| AIGH Capital Management LLC 2.51% of their portfolio | 2.7m $6.8m | Reduced -1.5m |
| NEXPOINT ASSET MANAGEMENT, L.P. 0.69% of their portfolio | 2.5m $6.3m | Added +2.4m |
| VANGUARD GROUP INC 0.00% of their portfolio | 2.2m $5.7m | Added +28.9k |
| Omega Fund Management, LLC 3.27% of their portfolio | 2.0m $5.0m | Unchanged |
| GENERAL AMERICAN INVESTORS CO INC 0.46% of their portfolio | 1.9m $4.9m | Added +30.0k |
| Rock Springs Capital Management LP 0.11% of their portfolio | 1.7m $4.4m | Unchanged |
| Bruce & Co., Inc. 1.08% of their portfolio | 1.6m $4.0m | Reduced -1.1k |
| BlackRock Inc. 0.00% of their portfolio | 1.1m $2.7m | Reduced -111.8k |
| Carlyle Group Inc. 0.08% of their portfolio | 1.0m $2.6m | New |
| J. Goldman & Co LP 0.13% of their portfolio | 915.5k $2.3m | Added +865.1k |
| Worth Venture Partners, LLC 0.82% of their portfolio | 657.9k $1.7m | Reduced -364.6k |
| Eversept Partners, LP 0.15% of their portfolio | 638.5k $1.6m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 466.8k $1.2m | Added +2.4k |
| CM Management, LLC 1.36% of their portfolio | 450.0k $1.1m | Added +105.0k |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 368.2k $935.3k | Added +237.0k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 353.5k $897.9k | Reduced -39.2k |
| MORGAN STANLEY 0.00% of their portfolio | 316.8k $804.8k | Added +176.1k |
| BROWN BROTHERS HARRIMAN & CO 0.01% of their portfolio | 287.9k $731.3k | Unchanged |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 273.3k $694.2k | Reduced -85.7k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 242.1k $615.0k | Reduced -1.4k |
| STATE STREET CORP 0.00% of their portfolio | 226.0k $574.1k | Unchanged |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 139.4k $352.0k | Reduced -107.3k |
| Trellus Management Company, LLC 0.52% of their portfolio | 127.0k $322.6k | Reduced -168.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 112.7k $286.2k | Added +2.0k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 107.7k $273.6k | Reduced -115.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 75.6k $192.1k | Added +29.8k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 71.5k $182.0k | Reduced -497.1k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 58.9k $149.7k | Reduced -19.3k |
| LPL Financial LLC 0.00% of their portfolio | 52.0k $132.0k | Added +10.0k |
| PERKINS CAPITAL MANAGEMENT INC 0.11% of their portfolio | 45.7k $116.0k | Unchanged |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 39.5k $100.4k | Added +22.6k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 36.8k $93.4k | Added +11.3k |
| Baird Financial Group, Inc. 0.00% of their portfolio | 35.5k $90.2k | Unchanged |
| GABELLI FUNDS LLC 0.00% of their portfolio | 34.5k $87.6k | Reduced -4.0k |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 33.8k $85.9k | Reduced -6.1k |
| Teton Advisors, Inc. 0.02% of their portfolio | 33.7k $85.6k | Reduced -800 |
| HighTower Advisors, LLC 0.00% of their portfolio | 33.0k $84.0k | Unchanged |
| B. Riley Wealth Advisors, Inc. 0.00% of their portfolio | 30.0k $76.2k | Unchanged |
| Kathmere Capital Management, LLC 0.01% of their portfolio | 30.0k $76.2k | Unchanged |
| WATER ISLAND CAPITAL LLC 0.01% of their portfolio | 24.5k $62.2k | Reduced -25.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 22.0k $56.0k | Reduced -2.0k |
| ETF MANAGERS GROUP, LLC 0.00% of their portfolio | 18.3k $46.6k | Added +4.5k |
| Virtu Financial LLC 0.00% of their portfolio | 18.2k $46.0k | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 17.9k $45.4k | Unchanged |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 17.4k $44.2k | Unchanged |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 17.0k $43.0k | Unchanged |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 16.6k $42.3k | Reduced -2.7k |
| Invesco Ltd. 0.00% of their portfolio | 16.1k $40.8k | Added +5.5k |
| Corient Private Wealth LP 0.00% of their portfolio | 15.6k $39.5k | Unchanged |
| GAMCO INVESTORS, INC. ET AL 0.00% of their portfolio | 15.5k $39.4k | Unchanged |
| Arete Wealth Advisors, LLC 0.00% of their portfolio | 14.1k $36.0k | Unchanged |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 13.9k $35.3k | Reduced -8.0k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 12.0k $30.6k | Reduced -32.6k |
| Baader Bank Aktiengesellschaft 0.00% of their portfolio | 11.6k $22.9k | New |
| Cutter & CO Brokerage, Inc. 0.01% of their portfolio | 10.9k $27.7k | New |
| UBS Group AG 0.00% of their portfolio | 10.3k $26.1k | Added +10.1k |
| Kingsview Wealth Management, LLC 0.00% of their portfolio | 10.0k $25.4k | New |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 5.3k $13.5k | Reduced -16 |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 2.7k $7.0k | Added +1.1k |
| FMR LLC 0.00% of their portfolio | 894 $2.3k | Added +595 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 500 $1.0k | Reduced -415 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 0.00% of their portfolio | 100 $254 | New |
| HARBOUR INVESTMENTS, INC. 0.00% of their portfolio | 2 $5 | Unchanged |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |