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HowShorted

How shorted is Rockwell Medical, Inc.? RMTI

#2,825most shorted US stockof 3,805 ranked stocks, more shorted than 25%

2.23%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−0.08
5 reports (~10 weeks)
+1.26
days to cover
4.59
Aggregate net short position time series for Rockwell Medical, Inc.

Markers along the chart's base: ▲ results announced (an 8-K reporting results was filed) ▲ quarterly or annual report filed. Dates are SEC filing dates; hover a point to see events since the previous settlement.

Days to cover

FINRA's own figure: reported shares short divided by the stock's average daily trading volume, published alongside each settlement. It expresses the short position in days of typical trading rather than as a percentage of the company; the two can move differently.

Aggregate net short position time series for Rockwell Medical, Inc. days to cover

Short interest around results

For each results announcement (an 8-K reporting results, by its SEC filing date), the FINRA settlement before it and the first one after. Settlements fall twice a month, so the two figures can sit up to a month apart and much else changes in between: this shows what was reported, not why.

Reported short interest before and after each results announcement
Results filedSettlement beforeSettlement afterChange
7 May 20262.51% 15 Apr 20261.25% 15 May 2026−1.26
26 Mar 20262.33% 13 Mar 20261.89% 31 Mar 2026−0.44
20 Jan 20261.47% 15 Jan 20261.74% 30 Jan 2026+0.27
14 Aug 20250.30% 31 Jul 20250.51% 15 Aug 2025+0.21
12 May 20250.57% 30 Apr 20250.56% 15 May 2025−0.01
20 Mar 20251.53% 14 Mar 20251.45% 31 Mar 2025−0.08
12 Nov 20242.88% 31 Oct 20243.46% 15 Nov 2024+0.58
14 May 20242.10% 30 Apr 20242.16% 15 May 2024+0.06

Fails to deliver

The SEC's fails-to-deliver figure for RMTI: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Last balance on file
2,611
11 Sep 2026
Highest in window
60,204
18 Feb 2026
Days with a balance
70
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Rockwell Medical, Inc. fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 60K shares.

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Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20262.23%−0.08
31 Aug 20262.31%+0.13
14 Aug 20262.18%+0.14
30 Jun 20262.04%+0.18
15 Jun 20261.86%+0.89
29 May 20260.97%−0.28
15 May 20261.25%−1.26
15 Apr 20262.51%+0.62
31 Mar 20261.89%−0.44
13 Mar 20262.33%+0.16
27 Feb 20262.17%+0.09
13 Feb 20262.08%+0.34
30 Jan 20261.74%+0.27
15 Jan 20261.47%−0.70
31 Dec 20252.17%+0.67
15 Dec 20251.50%−0.76
28 Nov 20252.26%−0.15
14 Nov 20252.41%+1.90
15 Aug 20250.51%+0.21
31 Jul 20250.30%−0.15
15 Jul 20250.45%−0.05
30 Jun 20250.50%0.00
13 Jun 20250.50%+0.02
30 May 20250.48%−0.08
15 May 20250.56%−0.01
30 Apr 20250.57%−0.48
15 Apr 20251.05%−0.40
31 Mar 20251.45%−0.08
14 Mar 20251.53%+0.11
28 Feb 20251.42%+0.06
14 Feb 20251.36%−0.20
31 Jan 20251.56%−0.22
15 Jan 20251.78%−0.13
31 Dec 20241.91%−0.76
13 Dec 20242.67%−0.38
29 Nov 20243.05%−0.41
15 Nov 20243.46%+0.58
31 Oct 20242.88%+0.23
15 Oct 20242.65%+0.95
30 Sep 20241.70%+0.42
13 Sep 20241.28%+0.24
30 Aug 20241.04%−0.34
15 Aug 20241.38%−0.27
31 Jul 20241.65%−0.38
15 Jul 20242.03%−0.49
28 Jun 20242.52%+0.13
14 Jun 20242.39%+0.09
31 May 20242.30%+0.14
15 May 20242.16%+0.06
30 Apr 20242.10%−0.08
15 Apr 20242.18%−0.12
28 Mar 20242.30%+0.30
15 Mar 20242.00%−0.21
29 Feb 20242.21%+0.04
15 Feb 20242.17%+0.28
31 Jan 20241.89%−0.22
12 Jan 20242.11%+0.04
29 Dec 20232.07%−0.62
15 Dec 20232.69%−0.16
30 Nov 20232.85%−0.26
15 Nov 20233.11%−0.39
31 Oct 20233.50%+0.28
13 Oct 20233.22%+0.36
29 Sep 20232.86%−0.26
15 Sep 20233.12%−0.82
31 Aug 20233.94%−0.59
15 Aug 20234.53%+4.22
31 May 20230.31%−0.17
15 May 20230.48%−0.05
28 Apr 20230.53%−0.32
14 Apr 20230.85%−0.28
31 Mar 20231.13%−0.48
15 Mar 20231.61%+0.29
28 Feb 20231.32%−0.28
15 Feb 20231.60%+0.83
31 Jan 20230.77%+0.11
13 Jan 20230.66%+0.02
30 Dec 20220.64%−0.01
15 Dec 20220.65%0.00
30 Nov 20220.65%−0.45
15 Nov 20221.10%+0.18
31 Oct 20220.92%0.00
14 Oct 20220.92%+0.09
30 Sep 20220.83%−0.24
15 Sep 20221.07%+0.13
31 Aug 20220.94%−1.19
15 Aug 20222.13%+0.05
29 Apr 20222.08%−0.19
14 Apr 20222.27%−0.03
31 Mar 20222.30%+0.02
15 Mar 20222.28%−0.09
28 Feb 20222.37%−0.09
15 Feb 20222.46%−0.03
31 Jan 20222.49%+0.81
14 Jan 20221.68%−0.25
31 Dec 20211.93%−0.40
15 Dec 20212.33%+0.05
30 Nov 20212.28%−0.18
15 Nov 20212.46%−0.06
29 Oct 20212.52%−0.39
15 Oct 20212.91%−0.84
30 Sep 20213.75%−0.80
15 Sep 20214.55%−0.55
31 Aug 20215.10%+0.15
13 Aug 20214.95%+0.17
30 Jul 20214.78%−0.86
15 Jul 20215.64%+0.27
30 Jun 20215.37%−3.40
15 Jun 20218.77%+0.57
28 May 20218.20%−0.54
14 May 20218.74%−0.46
30 Apr 20219.20%−0.33
15 Apr 20219.53%+1.46
31 Mar 20218.07%+0.93
15 Mar 20217.14%+0.73
26 Feb 20216.41%+0.77
12 Feb 20215.64%+3.34
29 Jan 20212.30%+1.05
15 Jan 20211.25%−0.17
31 Dec 20201.42%−1.05
15 Dec 20202.47%−0.21
30 Nov 20202.68%+0.05
13 Nov 20202.63%−1.73
30 Oct 20204.36%−1.20
15 Oct 20205.56%−0.44
30 Sep 20206.00%−3.16
15 Sep 20209.16%+0.13
31 Aug 20209.03%+0.26
14 Aug 20208.77%−0.77
31 Jul 20209.54%−0.16
15 Jul 20209.70%+1.40
30 Jun 20208.30%+1.91
15 Jun 20206.39%−0.67
29 May 20207.06%−2.48
15 May 20209.54%−0.16
30 Apr 20209.70%−0.57
15 Apr 202010.27%−0.05
31 Mar 202010.32%−0.41
13 Mar 202010.73%+0.09
28 Feb 202010.64%+1.60
14 Feb 20209.04%+0.82
31 Jan 20208.22%−0.39
15 Jan 20208.61%+0.07
31 Dec 20198.54%+0.14
13 Dec 20198.40%−0.83
29 Nov 20199.23%−1.03
15 Nov 201910.26%−0.23
31 Oct 201910.49%−0.23
15 Oct 201910.72%+0.01
30 Sep 201910.71%+0.20
13 Sep 201910.51%+0.01
30 Aug 201910.50%−0.13
15 Aug 201910.63%−2.17
31 Jul 201912.80%+0.98
15 Jul 201911.82%+0.14
28 Jun 201911.68%−0.97
14 Jun 201912.65%+0.49
31 May 201912.16%−0.20
15 May 201912.36%−0.30
30 Apr 201912.66%+0.14
15 Apr 201912.52%−0.15
29 Mar 201912.67%+0.58
15 Mar 201912.09%−0.52
28 Feb 201912.61%−0.45
15 Feb 201913.06%−0.31
31 Jan 201913.37%−0.05
15 Jan 201913.42%+0.25
31 Dec 201813.17%−0.60
14 Dec 201813.77%−0.77
30 Nov 201814.54%−0.33
15 Nov 201814.87%−1.18
31 Oct 201816.05%−0.83
15 Oct 201816.88%−0.09
28 Sep 201816.97%+0.07
14 Sep 201816.90%+0.12
31 Aug 201816.78%−0.07
15 Aug 201816.85%−0.15
31 Jul 201817.00%−0.22
13 Jul 201817.22%−0.32
29 Jun 201817.54%−0.27
15 Jun 201817.81%+0.42
31 May 201817.39%+0.34
15 May 201817.05%−0.04
30 Apr 201817.09%−0.10
13 Apr 201817.19%−0.68
29 Mar 201817.87%+0.60
15 Mar 201817.27%−0.59
28 Feb 201817.86%−0.32
15 Feb 201818.18%+0.35
31 Jan 201817.83%+0.01
12 Jan 201817.82%+0.54
29 Dec 201717.28%–

Newest first. Scroll inside the table for earlier dates, back to 29 Dec 2017.

Frequently asked questions

How shorted is Rockwell Medical, Inc. right now?
2.23% of Rockwell Medical, Inc.'s (RMTI) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 2,825th most shorted US stock, out of 3,805 we rank.
What does this number include?
FINRA member firms must report their short positions in all US equities twice a month; FINRA consolidates them per security. We divide that official share count by the company's shares outstanding from its SEC filings. This is the regulatory figure, not a daily estimate.
Why does it only update twice a month?
US short interest is reported for settlement on the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. That cadence is set by regulation; no daily official figure exists.
Is this RMTI's short float?
No. This is short interest as a percentage of shares outstanding, the count in the company's SEC filings. "Short float" divides the same FINRA short count by the public float, which excludes closely held shares, so it comes out higher for the same company. We publish no float estimates: the float is not a regulatory figure.
What is RMTI's days to cover?
4.59 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume. It is published in the same FINRA file and shown verbatim; we hold no volume data ourselves.
Which funds are short?
US public short interest is aggregate-only: individual short sellers are not named. Only some EU markets publish named positions.