Alpine Immune Sciences, Inc.
ALPNDelisted May 20, 2024- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001626199
Alpine Immune Sciences, Inc. was delisted on May 20, 2024; its insiders filed their last Form 4 on May 20, 2024; 181 institutions reported holding it in 13F filings for Q1 2024, worth $2.56B in total; no superinvestor held it.
Four kinds of short-selling data, each measuring something different:
- Short interest: shares sold short and not yet bought back, as of a settlement date. FINRA publishes it twice a month, about eight business days after the settlement date.
- Daily short volume: shares sold short each day in off-exchange trades reported to FINRA. It counts trades, not open positions, and is published the next day.
- Fails-to-deliver: shares not delivered by the settlement date. The SEC publishes them twice a month, about two weeks late.
- ATS (dark pool) volume: weekly volume on alternative trading systems and other off-exchange venues. FINRA publishes it two to four weeks after the week.
More in the glossary.
Short interest
Shares sold short and not yet bought back, from FINRA, on every settlement date in the last two years.
- Short interest
- 2.44M
- Shares, settlement May 15, 2024
- Change
- −1.44M
- −37.1% vs. Apr 30, 2024
- Days to cover
- 1.34
- Short interest ÷ average daily volume
- Average daily volume
- 1.83M
- Shares, as reported by FINRA
| Settlement date | Short interest | Change | Change % | Avg. daily volume | Days to cover |
|---|---|---|---|---|---|
| May 15, 2024 | 2.44M | −1.44M | −37.1% | 1.83M | 1.34 |
| Apr 30, 2024 | 3.89M | −854.1K | −18.0% | 2.19M | 1.78 |
| Apr 15, 2024 | 4.74M | −542.5K | −10.3% | 5.72M | 1.00 |
| Mar 28, 2024 | 5.28M | −326.1K | −5.8% | 1.21M | 4.37 |
| Mar 15, 2024 | 5.61M | +1.18M | +26.7% | 1.40M | 4.01 |
| Feb 29, 2024 | 4.43M | +397.2K | +9.9% | 949.0K | 4.67 |
| Feb 15, 2024 | 4.03M | +689.5K | +20.6% | 1.09M | 3.69 |
| Jan 31, 2024 | 3.34M | +935.2K | +38.9% | 1.35M | 2.48 |
| Jan 12, 2024 | 2.41M | −1.57M | −39.6% | 596.6K | 4.03 |
| Dec 29, 2023 | 3.98M | +984.7K | +32.9% | 690.6K | 5.76 |
| Dec 15, 2023 | 3.00M | −322.9K | −9.7% | 940.4K | 3.19 |
| Nov 30, 2023 | 3.32M | −1.03M | −23.8% | 491.4K | 6.75 |
| Nov 15, 2023 | 4.35M | +1.47M | +51.2% | 1.39M | 3.14 |
| Oct 31, 2023 | 2.88M | +692.3K | +31.7% | 541.5K | 5.32 |
| Oct 13, 2023 | 2.19M | −614.4K | −21.9% | 604.9K | 3.62 |
| Sep 29, 2023 | 2.80M | +181.8K | +6.9% | 173.1K | 16.18 |
| Sep 15, 2023 | 2.62M | +100.7K | +4.0% | 372.4K | 7.04 |
| Aug 31, 2023 | 2.52M | +557.3K | +28.4% | 202.9K | 12.42 |
| Aug 15, 2023 | 1.96M | +471.6K | +31.6% | 275.8K | 7.11 |
| Jul 31, 2023 | 1.49M | +11.0K | +0.7% | 188.4K | 7.91 |
| Jul 14, 2023 | 1.48M | −47.7K | −3.1% | 107.8K | 13.72 |
| Jun 30, 2023 | 1.53M | +312.7K | +25.8% | 434.3K | 3.52 |
| Jun 15, 2023 | 1.21M | +21.2K | +1.8% | 159.1K | 7.63 |
| May 31, 2023 | 1.19M | +41.7K | +3.6% | 254.3K | 4.69 |
| May 15, 2023 | 1.15M | +93.4K | +8.8% | 98.0K | 11.75 |
| Apr 28, 2023 | 1.06M | +19.8K | +1.9% | 41.5K | 25.53 |
| Apr 14, 2023 | 1.04M | −13.0K | −1.2% | 34.4K | 30.19 |
| Mar 31, 2023 | 1.05M | +158.4K | +17.7% | 121.2K | 8.67 |
| Mar 15, 2023 | 892.9K | +87.0K | +10.8% | 89.1K | 10.03 |
| Feb 28, 2023 | 805.9K | +64.8K | +8.8% | 67.5K | 11.94 |
| Feb 15, 2023 | 741.1K | −21.6K | −2.8% | 70.9K | 10.45 |
| Jan 31, 2023 | 762.7K | −53.5K | −6.6% | 89.7K | 8.51 |
| Jan 13, 2023 | 816.2K | −1.51M | −65.0% | 86.7K | 9.42 |
| Dec 30, 2022 | 2.33M | −10.2K | −0.4% | 230.7K | 10.10 |
| Dec 15, 2022 | 2.34M | +136.3K | +6.2% | 110.0K | 21.29 |
| Nov 30, 2022 | 2.20M | +90.5K | +4.3% | 83.0K | 26.56 |
| Nov 15, 2022 | 2.11M | +228.4K | +12.1% | 117.5K | 18.00 |
| Oct 31, 2022 | 1.89M | +47.3K | +2.6% | 105.5K | 17.88 |
| Oct 14, 2022 | 1.84M | +211.9K | +13.0% | 94.9K | 19.37 |
| Sep 30, 2022 | 1.63M | +257.1K | +18.8% | 227.6K | 7.15 |
| Sep 15, 2022 | 1.37M | −28.3K | −2.0% | 35.8K | 38.28 |
| Aug 31, 2022 | 1.40M | −749 | −0.1% | 29.0K | 48.17 |
| Aug 15, 2022 | 1.40M | +8.76K | +0.6% | 67.3K | 20.79 |
| Jul 29, 2022 | 1.39M | −12.1K | −0.9% | 41.2K | 33.76 |
| Jul 15, 2022 | 1.40M | +11.1K | +0.8% | 62.7K | 22.37 |
| Jun 30, 2022 | 1.39M | −85.0K | −5.8% | 139.0K | 10.01 |
| Jun 15, 2022 | 1.48M | +58.4K | +4.1% | 140.5K | 10.50 |
| May 31, 2022 | 1.42M | +41 | 0.0% | 88.1K | 16.08 |
Fails-to-deliver
Shares that weren't delivered by the settlement date, from the SEC, for the last 30 dates with fails. The price is the previous day's closing price published by the SEC.
The SEC has reported no fails-to-deliver for ALPN.
Daily short volume
Off-exchange short-sale volume, not short interest: shares sold short each day in trades reported to FINRA, for the last 30 trading days.
The short volume ratio isn't a sentiment gauge: market makers sell short to fill buy orders and to hedge, so short sales are usually about half of off-exchange volume.
FINRA has reported no daily short volume for ALPN in the last two years.
ATS (dark pool) volume
Weekly volume on alternative trading systems (ATS) and other off-exchange (OTC) venues, from FINRA, for the last 12 weeks. ATS share is ATS volume ÷ (ATS + OTC volume), not a share of all trading.
| Week of | Tier | ATS shares | ATS trades | Other OTC shares | Other OTC trades | ATS share |
|---|---|---|---|---|---|---|
| May 13, 2024 | T2 | 1,771,862 | 8,855 | 1,359,522 | 2,158 | 56.6% |
| May 6, 2024 | T2 | 1,294,383 | 12,112 | 1,722,215 | 3,087 | 42.9% |
| Apr 29, 2024 | T2 | 1,216,072 | 14,716 | 1,368,913 | 3,335 | 47.0% |
| Apr 22, 2024 | T2 | 1,035,739 | 16,251 | 1,703,944 | 3,437 | 37.8% |
| Apr 15, 2024 | T2 | 2,430,869 | 22,351 | 2,270,393 | 5,647 | 51.7% |
| Apr 8, 2024 | T2 | 7,843,084 | 60,827 | 15,418,218 | 21,352 | 33.7% |
| Apr 1, 2024 | T2 | 1,687,795 | 22,371 | 1,276,686 | 4,131 | 56.9% |
| Mar 25, 2024 | T2 | 856,987 | 11,139 | 843,463 | 3,017 | 50.4% |
| Mar 18, 2024 | T2 | 1,836,896 | 20,878 | 1,296,180 | 7,338 | 58.6% |
| Mar 11, 2024 | T2 | 1,389,310 | 20,269 | 1,392,051 | 2,966 | 50.0% |
| Mar 4, 2024 | T2 | 1,580,164 | 19,815 | 1,414,222 | 4,505 | 52.8% |
| Feb 26, 2024 | T2 | 1,016,271 | 17,359 | 851,039 | 4,074 | 54.4% |