Paratek Pharmaceuticals, Inc.
PRTKNASDAQHealthcare
$2.23
+$0.04(+1.83%)
Market Cap$127828952
P/E Ratio—
52W High$3.65
52W Low$1.29
Paratek Pharmaceuticals, Inc. (PRTK) Stock Price History
Key milestones, OHLCV table, annual returns, peers & What If.
prtk · EOD price history · split-adj. · FMP · as of Sep 29, 2023
5-Year High5Y
$11.24
Jun 10, 2021
-80.2% from here
5-Year Low5Y
$1.29
Mar 16, 2023
+72.9% from low
IPO Priceadj.
$29.40
Feb 3, 2009
-92.4% since IPO
1 Year Ago
—
—
+0.0% in 1Y
5 Years Ago
$10.13
Jun 9, 2021
-78.0% in 5Y
10 Years Ago
$16.06
Jun 9, 2016
-86.1% in 10Y
Historical Price Data · PRTK
| Date↓ | Open↕ | High↕ | Low↕ | Close↕ | Close (Unadj.) ⓘ | Volume↕ | Change %↕ |
|---|---|---|---|---|---|---|---|
| Sep 29, 2023 | $2.23 | $2.23 | $2.23 | $2.23 | $2.23 | 0K | +0.00% |
| Sep 28, 2023 | $2.23 | $2.23 | $2.23 | $2.23 | $2.23 | 0K | +0.00% |
| Sep 27, 2023 | $2.23 | $2.23 | $2.23 | $2.23 | $2.23 | 0K | +0.00% |
| Sep 26, 2023 | $2.23 | $2.23 | $2.23 | $2.23 | $2.23 | 0K | +0.00% |
| Sep 25, 2023 | $2.23 | $2.23 | $2.23 | $2.23 | $2.23 | 0K | +0.00% |
| Sep 22, 2023 | $2.23 | $2.23 | $2.23 | $2.23 | $2.23 | 0K | +0.00% |
| Sep 21, 2023 | $2.23 | $2.23 | $2.23 | $2.23 | $2.23 | 0K | +0.00% |
| Sep 20, 2023 | $2.19 | $2.24 | $2.19 | $2.23 | $2.23 | 4.8M | +1.83% |
| Sep 19, 2023 | $2.19 | $2.20 | $2.18 | $2.19 | $2.19 | 5.1M | +0.00% |
| Sep 18, 2023 | $2.19 | $2.21 | $2.18 | $2.19 | $2.19 | 3.3M | +0.00% |
| Sep 15, 2023 | $2.20 | $2.20 | $2.18 | $2.18 | $2.18 | 700K | -0.91% |
| Sep 14, 2023 | $2.21 | $2.21 | $2.19 | $2.19 | $2.19 | 230K | -0.90% |
| Sep 13, 2023 | $2.21 | $2.22 | $2.20 | $2.20 | $2.20 | 1.4M | -0.45% |
| Sep 12, 2023 | $2.21 | $2.22 | $2.21 | $2.21 | $2.21 | 249K | +0.00% |
| Sep 11, 2023 | $2.22 | $2.23 | $2.21 | $2.21 | $2.21 | 346K | -0.45% |
| Sep 8, 2023 | $2.21 | $2.22 | $2.21 | $2.22 | $2.22 | 122K | +0.45% |
| Sep 7, 2023 | $2.20 | $2.22 | $2.20 | $2.22 | $2.22 | 392K | +0.91% |
| Sep 6, 2023 | $2.22 | $2.22 | $2.20 | $2.20 | $2.20 | 150K | -0.90% |
| Sep 5, 2023 | $2.20 | $2.22 | $2.19 | $2.22 | $2.22 | 592K | +0.91% |
| Sep 1, 2023 | $2.21 | $2.23 | $2.19 | $2.19 | $2.19 | 250K | -0.90% |
Showing 1–20 of 582 records
Annual Stock Price Performance · PRTK
Jan 1 → Dec 31 · 3 years2023+16.8%$1.91 → $2.23
+16.8%
2022-59.7%$4.64 → $1.87
-59.7%
2021-55.9%$10.19 → $4.49
-55.9%
Best Year2023 · +16.8%
Worst Year2022 · -59.7%
Positive Years1 / 3
Avg Annual Return-33.0%
3Y Total Return-78.1%
3Y CAGR~-39.7% / yr
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Mkt Cap $182.3BWhat If You Invested in PRTK?
If you invested $1,000 in PRTK 10 years ago — how much would it be worth today?
INVESTED$1,000
→TODAY WORTH$139
Total Return-86.1%
CAGR~-17.9% / yr
Profit$-861
Based on Jun 9, 2016 · $16.06Split & dividend adjustedNo fees assumed
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About Price History & OHLCV Data
Paratek Pharmaceuticals, Inc. (PRTK) is classified under Healthcare and trades on NASDAQ. The quote snapshot on this page shows a last price of $2.23. Use the chart and OHLCV table below for open, high, low, close and volume over time.
Annual performance bars, similar companies in the same sector, and the What If calculator help you explore long-horizon returns without leaving this tab. Figures use split-adjusted end-of-day prices where noted; this content is informational, not investment advice.
Data: FMP EOD · split-adjusted where noted · not investment advice
Frequently Asked Questions
PRTK price history · 5 questionsEnd-of-day prices are sourced from market data providers (Financial Modeling Prep). Corporate actions such as splits may be reflected in adjusted series; always verify critical values with your broker or official filings.
PRTK historical stock pricesFMP EOD datasplit-adjusted OHLCV