PRTK Insider Trading

Notice: This stock is marked as potentially delisted. It may not be actively trading.
Insider Ownership Percentage: 8.00%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $313,161.20

Paratek Pharmaceuticals Insider Trading History Chart

This chart shows the insider buying and selling history at Paratek Pharmaceuticals by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Paratek Pharmaceuticals Share Price & Price History

Current Price: $2.23
Price Change: Price Increase of +0.04 (1.83%)
As of 09/21/2023 09:00 PM ET

This chart shows the closing price history over time for PRTK up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table

Paratek Pharmaceuticals Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
8/9/2023Evan LohCEOSell48,967$2.20$107,727.401,327,981View SEC Filing Icon  
8/9/2023Michael BighamChairmanSell31,250$2.20$68,750.001,334,702View SEC Filing Icon  
8/9/2023Randall B. BrennerInsiderSell27,603$2.20$60,726.60415,209View SEC Filing Icon  
8/9/2023William M HaskelGeneral CounselSell34,526$2.20$75,957.20447,024View SEC Filing Icon  
3/22/2023James D DonderoMajor ShareholderBuy106,000$1.77$187,620.002,056,000View SEC Filing Icon  
3/20/2023James D DonderoMajor ShareholderBuy105,137$1.40$147,191.802,239,770View SEC Filing Icon  
3/17/2023James D DonderoMajor ShareholderBuy234,863$1.50$352,294.502,134,663View SEC Filing Icon  
2/21/2023Jeffrey SteinDirectorSell7,000$1.90$13,300.0068,625View SEC Filing Icon  
12/21/2022Adam WoodrowInsiderSell6,750$1.99$13,432.50651,284View SEC Filing Icon  
12/21/2022Evan LohCEOSell23,489$1.99$46,743.111,208,198View SEC Filing Icon  
12/21/2022Michael BighamChairmanSell15,750$1.99$31,342.501,209,702View SEC Filing Icon  
12/21/2022William M HaskelGeneral CounselSell7,007$1.99$13,943.93407,800View SEC Filing Icon  
12/12/2022Adam WoodrowInsiderSell3,820$1.98$7,563.60641,787View SEC Filing Icon  
12/12/2022Evan LohCEOSell37,831$1.98$74,905.381,241,106View SEC Filing Icon  
12/12/2022Michael BighamChairmanSell19,484$1.98$38,578.321,212,343View SEC Filing Icon  
12/12/2022William M HaskelGeneral CounselSell14,410$1.98$28,531.80423,391View SEC Filing Icon  
10/28/2022Adam WoodrowInsiderSell4,563$3.47$15,833.61645,607View SEC Filing Icon  
10/28/2022Evan LohCEOSell8,805$3.47$30,553.351,278,937View SEC Filing Icon  
10/28/2022Michael BighamChairmanSell6,000$3.47$20,820.001,231,827View SEC Filing Icon  
10/28/2022William M HaskelGeneral CounselSell4,382$3.47$15,205.54437,801View SEC Filing Icon  
8/9/2022Evan LohCEOSell44,519$2.66$118,420.541,257,742View SEC Filing Icon  
8/9/2022Michael BighamChairmanSell28,637$2.66$76,174.421,207,827View SEC Filing Icon  
8/9/2022Randall B. BrennerInsiderSell19,608$2.66$52,157.28349,149View SEC Filing Icon  
8/9/2022William M HaskelGeneral CounselSell22,453$2.66$59,724.98432,933View SEC Filing Icon  
12/15/2021Evan LohCEOSell49,259$4.27$210,335.93View SEC Filing Icon  
12/15/2021Michael BighamChairmanSell17,819$4.27$76,087.13View SEC Filing Icon  
12/15/2021Randall B. BrennerInsiderSell15,780$4.27$67,380.60View SEC Filing Icon  
12/15/2021William M HaskelGeneral CounselSell17,178$4.27$73,350.06View SEC Filing Icon  
12/13/2021Evan LohCEOSell13,983$4.42$61,804.86View SEC Filing Icon  
12/13/2021Michael BighamChairmanSell5,059$4.42$22,360.78View SEC Filing Icon  
12/13/2021Randall B. BrennerInsiderSell4,479$4.42$19,797.18View SEC Filing Icon  
12/13/2021William M HaskelGeneral CounselSell4,876$4.42$21,551.92View SEC Filing Icon  
8/17/2021Evan LohCEOSell33,931$5.12$173,726.721,034,291View SEC Filing Icon  
8/17/2021Michael BighamChairmanSell32,030$5.12$163,993.60954,312View SEC Filing Icon  
8/17/2021Randall B. BrennerInsiderSell8,766$5.12$44,881.92512,296View SEC Filing Icon  
8/17/2021William M HaskelGeneral CounselSell9,692$5.12$49,623.04380,217View SEC Filing Icon  
6/4/2021Adam WoodrowInsiderSell17,182$9.70$166,665.40491,978View SEC Filing Icon  
6/4/2021Michael BighamChairmanSell34,364$9.70$333,330.80913,676View SEC Filing Icon  
6/4/2021William M HaskelGeneral CounselSell7,561$9.70$73,341.70364,653View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Paratek Pharmaceuticals (NASDAQ:PRTK)

53.60% of Paratek Pharmaceuticals stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at PRTK by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Paratek Pharmaceuticals Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/14/2023Hunting Hill Global Capital LLC361,226$0.80M0.3%N/A0.630%Search for SEC Filing on Google Icon
8/11/2023Natixis491,724$1.09M0.0%N/A0.858%Search for SEC Filing on Google Icon
8/11/2023Covestor Ltd11,184$25K0.0%N/A0.020%Search for SEC Filing on Google Icon
8/11/2023Deuterium Capital Management LLC55,136$0.12M0.2%N/A0.096%Search for SEC Filing on Google Icon
8/10/2023Teton Advisors Inc.25,000$55K0.0%-25.8%0.044%Search for SEC Filing on Google Icon
8/10/2023Gabelli Funds LLC369,860$0.82M0.0%-52.9%0.645%Search for SEC Filing on Google Icon
8/10/2023GABELLI & Co INVESTMENT ADVISERS INC.306,950$0.68M0.1%N/A0.536%Search for SEC Filing on Google Icon
8/4/2023CM Management LLC250,000$0.55M0.5%-44.4%0.436%Search for SEC Filing on Google Icon
8/3/2023General American Investors Co. Inc.1,839,424$4.07M0.4%-3.9%3.211%Search for SEC Filing on Google Icon
8/3/2023Fifth Lane Capital LP261,781$0.58M0.2%N/A0.457%Search for SEC Filing on Google Icon
7/21/2023Perkins Capital Management Inc.13,700$30K0.0%-70.0%0.024%Search for SEC Filing on Google Icon
7/18/2023Deltec Asset Management LLC70,468$0.16M0.0%N/A0.123%Search for SEC Filing on Google Icon
5/15/2023AIGH Capital Management LLC2,674,812$6.79M2.5%-35.7%4.670%Search for SEC Filing on Google Icon
5/11/2023Acadian Asset Management LLC139,386$0.35M0.0%-43.5%0.243%Search for SEC Filing on Google Icon
5/9/2023Cutter & CO Brokerage Inc.10,900$28K0.0%N/A0.019%Search for SEC Filing on Google Icon
5/8/2023CM Management LLC450,000$1.14M1.4%+30.4%0.786%Search for SEC Filing on Google Icon
5/5/2023Carlyle Group Inc.1,041,131$2.62M0.1%N/A1.818%Search for SEC Filing on Google Icon
5/2/2023General American Investors Co. Inc.1,914,424$4.86M0.5%+1.6%3.343%Search for SEC Filing on Google Icon
5/1/2023Virtu Financial LLC18,192$46K0.0%N/A0.032%Search for SEC Filing on Google Icon
5/1/2023Arete Wealth Advisors LLC14,050$35.69B0.0%N/A0.025%Search for SEC Filing on Google Icon
4/20/2023Trellus Management Company LLC127,000$0.32M0.4%-56.9%0.222%Search for SEC Filing on Google Icon
4/18/2023Assenagon Asset Management S.A.368,240$0.94M0.0%+180.5%0.643%Search for SEC Filing on Google Icon
4/18/2023ETF Managers Group LLC18,339$47K0.0%+32.4%0.032%Search for SEC Filing on Google Icon
3/15/2023B. Riley Wealth Advisors Inc.30,000$56K0.0%-35.1%0.054%Search for SEC Filing on Google Icon
2/16/2023AIGH Capital Management LLC4,156,891$7.77M2.6%+6.9%7.483%Search for SEC Filing on Google Icon
2/13/2023Teton Advisors Inc.34,500$65K0.0%-92.2%0.062%Search for SEC Filing on Google Icon
2/13/2023General American Investors Co. Inc.1,884,393$3.52M0.3%-1.7%3.392%Search for SEC Filing on Google Icon
2/9/2023CM Management LLC345,000$0.65M0.8%-13.8%0.621%Search for SEC Filing on Google Icon
2/7/2023Commonwealth Equity Services LLC17,000$31K0.0%N/A0.031%Search for SEC Filing on Google Icon
2/6/2023Arete Wealth Advisors LLC14,050$26.27B0.0%N/A0.025%Search for SEC Filing on Google Icon
1/24/2023Kathmere Capital Management LLC30,000$56K0.0%N/A0.054%Search for SEC Filing on Google Icon
1/12/2023Assenagon Asset Management S.A.131,264$0.25M0.0%-38.8%0.236%Search for SEC Filing on Google Icon
11/17/2022Telemetry Investments L.L.C.345,000$0.89M1.1%-30.3%0.621%Search for SEC Filing on Google Icon
11/14/2022Ergoteles LLC108,913$0.28M0.0%-52.3%0.196%Search for SEC Filing on Google Icon
11/4/2022CM Management LLC400,000$1.03M1.1%+14.3%0.729%Search for SEC Filing on Google Icon
10/31/2022General American Investors Co. Inc.1,916,099$4.92M0.5%+9.3%3.493%Search for SEC Filing on Google Icon
10/27/2022Prospera Financial Services Inc11,465$29K0.0%+156.8%0.021%Search for SEC Filing on Google Icon
10/27/2022Assenagon Asset Management S.A.214,405$0.55M0.0%+128.1%0.391%Search for SEC Filing on Google Icon
8/10/20221492 Capital Management LLC489,376$0.94M0.6%-4.0%0.892%Search for SEC Filing on Google Icon
8/9/2022Pictet Asset Management SA481,827$0.93M0.0%+13.0%0.878%Search for SEC Filing on Google Icon
8/8/2022Y Intercept Hong Kong Ltd18,613$36K0.0%N/A0.034%Search for SEC Filing on Google Icon
8/5/2022General American Investors Co. Inc.1,752,470$3.38M0.3%+21.0%3.217%Search for SEC Filing on Google Icon
7/29/2022SG Americas Securities LLC13,419$26K0.0%N/A0.025%Search for SEC Filing on Google Icon
7/27/2022Assenagon Asset Management S.A.94,012$0.18M0.0%N/A0.173%Search for SEC Filing on Google Icon
6/21/2022Kalos Management Inc.14,550$43K0.0%N/A0.027%Search for SEC Filing on Google Icon
5/17/2022Rock Springs Capital Management LP1,726,637$5.13M0.1%+1.7%3.169%Search for SEC Filing on Google Icon
5/16/2022J. Goldman & Co LP1,056,631$3.14M0.1%N/A1.940%Search for SEC Filing on Google Icon
5/12/2022AIGH Capital Management LLC3,139,714$9.33M2.3%+34.2%5.763%Search for SEC Filing on Google Icon
5/12/20221492 Capital Management LLC509,828$1.51M0.8%+3.8%0.936%Search for SEC Filing on Google Icon
5/11/2022GSA Capital Partners LLP79,448$0.24M0.0%+52.0%0.146%Search for SEC Filing on Google Icon
5/9/2022CM Management LLC350,000$1.04M0.9%+16.7%0.642%Search for SEC Filing on Google Icon
5/5/2022New York State Common Retirement Fund32,513$97K0.0%-67.0%0.060%Search for SEC Filing on Google Icon
5/2/2022General American Investors Co. Inc.1,448,170$4.30M0.4%+10.8%2.658%Search for SEC Filing on Google Icon
5/2/2022National Asset Management Inc.46,200$0.14M0.0%+33.1%0.085%Search for SEC Filing on Google Icon
4/20/2022Perkins Capital Management Inc.49,700$0.15M0.1%-17.4%0.095%Search for SEC Filing on Google Icon
2/15/20221492 Capital Management LLC491,033$2.21M1.1%+0.6%1.006%Search for SEC Filing on Google Icon
2/14/2022GSA Capital Partners LLP52,256$0.24M0.0%-34.2%0.107%Search for SEC Filing on Google Icon
2/14/2022Omega Fund Management LLC1,971,241$8.85M1.3%-24.4%4.040%Search for SEC Filing on Google Icon
2/11/2022Gamco Investors INC. ET AL49,000$0.22M0.0%+44.1%0.100%Search for SEC Filing on Google Icon
2/11/2022General American Investors Co. Inc.1,306,919$5.87M0.5%+17.5%2.678%Search for SEC Filing on Google Icon
2/10/2022Pictet Asset Management SA335,044$1.50M0.0%+88.3%0.687%Search for SEC Filing on Google Icon
2/10/2022Perkins Capital Management Inc.60,200$0.27M0.2%-21.0%0.123%Search for SEC Filing on Google Icon
2/10/2022Campbell & CO Investment Adviser LLC17,000$76K0.0%N/A0.035%Search for SEC Filing on Google Icon
2/10/2022AIGH Capital Management LLC2,339,107$10.50M3.2%+45.3%4.794%Search for SEC Filing on Google Icon
2/10/2022Weil Company Inc.33,235$0.15M0.1%-37.6%0.068%Search for SEC Filing on Google Icon
2/9/2022Principal Financial Group Inc.50,216$0.23M0.0%-9.8%0.103%Search for SEC Filing on Google Icon
2/9/2022BNP Paribas Arbitrage SA48,624$0.22M0.0%+510.3%0.100%Search for SEC Filing on Google Icon
2/9/2022Baird Financial Group Inc.44,625$0.20M0.0%-11.7%0.091%Search for SEC Filing on Google Icon
2/7/2022SG Americas Securities LLC19,274$87K0.0%-39.3%0.039%Search for SEC Filing on Google Icon
2/2/2022New York State Common Retirement Fund98,413$0.44M0.0%-13.0%0.202%Search for SEC Filing on Google Icon
2/2/2022CM Management LLC300,000$1.35M1.0%+50.0%0.615%Search for SEC Filing on Google Icon
1/28/2022Allspring Global Investments Holdings LLC237,131$1.06M0.0%N/A0.486%Search for SEC Filing on Google Icon
1/28/2022National Asset Management Inc.34,700$0.16M0.0%-14.7%0.071%Search for SEC Filing on Google Icon
11/16/2021National Asset Management Inc.40,700$0.20M0.0%+42.3%0.083%Search for SEC Filing on Google Icon
11/16/2021Two Sigma Advisers LP355,400$1.73M0.0%-31.9%0.728%Search for SEC Filing on Google Icon
11/16/2021Telemetry Investments L.L.C.242,514$1.18M1.6%+44.8%0.497%Search for SEC Filing on Google Icon
11/15/2021Rock Springs Capital Management LP1,665,014$8.09M0.2%+0.6%3.412%Search for SEC Filing on Google Icon
11/15/2021Marshall Wace LLP111,547$0.54M0.0%-55.7%0.229%Search for SEC Filing on Google Icon
11/15/2021HighVista Strategies LLC19,182$93K0.1%N/A0.039%Search for SEC Filing on Google Icon
11/15/2021Granahan Investment Management Inc. MA821,654$3.99M0.1%-1.5%1.684%Search for SEC Filing on Google Icon
11/15/2021GSA Capital Partners LLP79,436$0.39M0.0%+360.7%0.163%Search for SEC Filing on Google Icon
11/12/2021Trexquant Investment LP32,867$0.16M0.0%N/A0.067%Search for SEC Filing on Google Icon
11/12/2021Renaissance Technologies LLC201,624$0.98M0.0%-52.9%0.413%Search for SEC Filing on Google Icon
11/12/2021Gamco Investors INC. ET AL34,000$0.17M0.0%N/A0.070%Search for SEC Filing on Google Icon
11/12/20211492 Capital Management LLC488,309$2.37M1.2%+284.5%1.001%Search for SEC Filing on Google Icon
11/12/2021The Manufacturers Life Insurance Company22,520$0.11M0.0%-23.6%0.046%Search for SEC Filing on Google Icon
11/12/2021Geode Capital Management LLC697,621$3.39M0.0%-3.7%1.430%Search for SEC Filing on Google Icon
11/12/2021AIGH Capital Management LLC1,609,398$7.82M1.6%+74.4%3.298%Search for SEC Filing on Google Icon
11/10/2021Goldman Sachs Group Inc.272,439$1.32M0.0%+7.0%0.558%Search for SEC Filing on Google Icon
11/9/2021Barclays PLC19,528$94K0.0%+212.1%0.040%Search for SEC Filing on Google Icon
11/9/2021BlackRock Inc.2,917,140$14.18M0.0%+0.7%5.978%Search for SEC Filing on Google Icon
11/9/2021Principal Financial Group Inc.55,658$0.27M0.0%-44.4%0.114%Search for SEC Filing on Google Icon
11/8/2021Summit Global Investments18,600$90K0.0%N/A0.038%Search for SEC Filing on Google Icon
11/8/2021CM Management LLC200,000$0.97M0.7%+14.3%0.410%Search for SEC Filing on Google Icon
11/5/2021Advisor Group Holdings Inc.11,310$54K0.0%-16.2%0.023%Search for SEC Filing on Google Icon
11/1/2021General American Investors Co. Inc.1,112,658$5.41M0.5%+6.9%2.280%Search for SEC Filing on Google Icon
11/1/2021SG Americas Securities LLC31,745$0.15M0.0%N/A0.065%Search for SEC Filing on Google Icon
10/26/2021Trellus Management Company LLC295,000$1.43M1.0%+3.7%0.605%Search for SEC Filing on Google Icon
10/25/2021Jaffetilchin Investment Partners LLC12,675$62K0.0%-50.0%0.026%Search for SEC Filing on Google Icon
8/25/2021Marshall Wace LLP251,598$1.72M0.0%N/A0.516%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Paratek Pharmaceuticals logo
Paratek Pharmaceuticals, Inc., a commercial-stage biopharmaceutical company, focuses on the development and commercialization of life-saving therapies for life-threatening diseases or other public health threats for civilian, government, and military use. Its products include NUZYRA, a once-daily oral and intravenous broad-spectrum antibiotic for the treatment of adult patients with community-acquired bacterial pneumonia, and acute skin and skin structure infections caused by susceptible pathogens; and SEYSARA, a once-daily oral therapy for the treatment of moderate to severe acne vulgaris. The company has license and collaboration agreements with Zai Lab (Shanghai) Co., Ltd. and Allergan plc; license agreement with Tufts University to develop and commercialize products for the treatment or prevention of bacterial or microbial diseases, or medical conditions; and contract with Biomedical Advanced Research and Development Authority to support the development of NUZYRA for the treatment of pulmonary anthrax. It also has license agreement with Tetraphase Pharmaceuticals, Inc. to develop, import, and sell the XERAVATM product, which is used for the treatment of complicated intra-abdominal infections caused by bacteria. The company was founded in 1996 and is headquartered in Boston, Massachusetts.
Read More on Paratek Pharmaceuticals

Today's Range

Now: $2.23
Low: $2.19
High: $2.24

50 Day Range

MA: $2.22
Low: $2.17
High: $2.23

52 Week Range

Now: $2.23
Low: $1.29
High: $3.65

Volume

4,764,400 shs

Average Volume

724,253 shs

Market Capitalization

$127.82 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.7

Who are the company insiders with the largest holdings of Paratek Pharmaceuticals?

Paratek Pharmaceuticals' top insider shareholders include:
  1. James D Dondero (Major Shareholder)
  2. Michael Bigham (Chairman)
  3. Evan Loh (CEO)
  4. Adam Woodrow (Insider)
  5. William M Haskel (General Counsel)
  6. Randall B Brenner (Insider)
  7. Jeffrey Stein (Director)
Learn More about top insider investors at Paratek Pharmaceuticals.