Calumet (CLMT)

Calumet on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as petroleum refining.

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3.6M

Short interest

settlement 2026-09-30

2.1

Days to cover

-1.3 days vs prior

64.4%

Short share of volume

2026-10-12

Fails to deliver

settlement 2026-09-14

Fri 6 Nov

Next earnings

estimated date

Insider flow, 90 days

0 buys, 1 sells

As of 2026-10-12.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in CLMT is 3,582,305 shares, down 94,163 shares over the last month. Over the last 48 readings it ranged from 3,335,395 shares (31 July 2026) to 10,402,670 shares (15 August 2025). The latest reading sits at the bottom of that range. At the reported average volume of 1.7M shares a day that is 2.1 days to cover.

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Settlement	Shares short	Change	Avg daily volume	Days to cover
2026-09-30	3,582,305	-20.1%	1,682,096	2.13
2026-09-15	4,483,670	+22.0%	1,299,291	3.45
2026-08-31	3,676,468	+3.3%	992,161	3.71
2026-08-14	3,557,882	+6.7%	1,479,622	2.40
2026-07-31	3,335,395	-8.9%	1,176,310	2.84
2026-07-15	3,661,359	-14.7%	941,395	3.89
2026-06-30	4,290,075	+6.8%	950,786	4.51
2026-06-15	4,018,405	-4.8%	851,301	4.72
2026-05-29	4,218,921	-16.7%	758,462	5.56
2026-05-15	5,064,837	-0.2%	1,138,313	4.45
2026-04-30	5,074,797	-10.9%	896,896	5.66
2026-04-15	5,695,645	+1.8%	1,168,227	4.88
2026-03-31	5,596,765	+3.3%	1,663,694	3.36
2026-03-13	5,420,250	-0.4%	1,416,441	3.83
2026-02-27	5,441,750	-21.9%	1,328,374	4.10
2026-02-13	6,970,191	+21.1%	1,580,686	4.41
2026-01-30	5,755,371	-11.4%	1,444,383	3.98
2026-01-15	6,495,937	-2.8%	1,210,480	5.37
2025-12-31	6,680,991	-15.1%	562,845	11.87
2025-12-15	7,868,613	-0.6%	547,874	14.36
2025-11-28	7,914,685	-5.3%	584,280	13.55
2025-11-14	8,357,691	+4.4%	1,018,619	8.20
2025-10-31	8,002,271	-2.1%	682,466	11.73
2025-10-15	8,176,853	-4.0%	559,380	14.62

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 12 October 2026, the short share of CLMT volume is 64.4%, up 16.9 points over the last five sessions. Over the last 30 readings it ranged from 26.6% (8 September 2026) to 64.4% (12 October 2026). The latest reading sits at the top of that range. The latest reading is 17.6 points above the 30-session average of 46.8%, on 291K shares reported.

Date	Short volume	Total volume	Short share	Exempt
2026-10-12	187K	291K	64.4%	0
2026-10-09	198K	372K	53.3%	62
2026-10-08	256K	453K	56.5%	37
2026-10-07	206K	354K	58.3%	267
2026-10-06	172K	345K	50.0%	2
2026-10-05	167K	351K	47.5%	0
2026-10-02	225K	633K	35.5%	0
2026-10-01	235K	787K	29.8%	34
2026-09-30	159K	496K	32.0%	11
2026-09-29	137K	252K	54.4%	1,130
2026-09-28	130K	303K	42.8%	70
2026-09-25	192K	366K	52.4%	0
2026-09-24	245K	545K	45.0%	0
2026-09-23	443K	977K	45.4%	1,233
2026-09-22	282K	684K	41.2%	171
2026-09-21	247K	675K	36.5%	1,495
2026-09-18	161K	352K	45.8%	2
2026-09-17	197K	661K	29.8%	1,800
2026-09-16	293K	604K	48.5%	561
2026-09-15	214K	436K	49.1%	100
2026-09-14	224K	504K	44.4%	173
2026-09-11	254K	498K	51.0%	90
2026-09-10	210K	365K	57.4%	1
2026-09-09	229K	527K	43.4%	453
2026-09-08	155K	584K	26.6%	0
2026-09-04	100K	209K	48.0%	500
2026-09-03	221K	463K	47.8%	273
2026-09-02	305K	595K	51.3%	236
2026-09-01	578K	926K	62.4%	180
2026-08-31	216K	400K	54.0%	2,353

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 14 September 2026, the fails-to-deliver balance in CLMT is 52 shares, down 2,498 shares over the last settlement date. Over the last 30 readings it ranged from 8 shares (17 March 2026) to 77,866 shares (20 January 2026). The latest reading sits at the bottom of that range.

Settlement	Shares failed	Price	Value
2026-09-14	52	$56.80	$3K
2026-09-08	2,550	$53.13	$135K
2026-08-24	983	$49.01	$48K
2026-08-20	26	$49.19	$1K
2026-08-11	1,821	$45.47	$83K
2026-08-04	9,994	$42.37	$423K
2026-07-22	215	$44.17	$9K
2026-07-21	2,120	$43.44	$92K
2026-07-20	600	$42.83	$26K
2026-07-13	19,994	$39.47	$789K
2026-07-08	43,802	$37.17	$1.6M
2026-07-01	82	$36.02	$3K
2026-06-05	250	$37.41	$9K
2026-05-26	203	$34.22	$7K
2026-05-18	1,935	$31.38	$61K
2026-05-15	1,676	$31.33	$53K
2026-05-13	21,531	$32.12	$692K
2026-05-04	137	$33.68	$5K
2026-03-30	1,571	$32.06	$50K
2026-03-23	4,218	$28.04	$118K
2026-03-19	7,131	$29.11	$208K
2026-03-17	8	$28.28	$226
2026-02-23	2,575	$28.14	$72K
2026-02-13	270	$25.98	$7K
2026-02-02	7,021	$22.41	$157K
2026-01-23	2,064	$20.85	$43K
2026-01-22	4,188	$20.74	$87K
2026-01-20	77,866	$20.33	$1.6M
2026-01-14	47	$19.89	$935
2026-01-13	23,548	$19.98	$470K

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

Insiders at CLMT reported 1 open-market sell worth $0 in the last 90 days and no open-market buys. Latest filing: Morical Gregory J (SVP, GENERAL COUNSEL) on 2026-09-25.

Date	Insider	Title	Type	Shares	Price	Value	Owned after
2026-09-25	Morical Gregory J	SVP, GENERAL COUNSEL	Tax withholding	14K	$0.00	$0	65K
2026-09-25	Morical Gregory J	SVP, GENERAL COUNSEL	Option exercise	31K	$0.00	$0	79K
2026-09-25	Fleming Bruce A	EVP - MONTANA RENEWABLES	Tax withholding	42K	$0.00	$0	615K
2026-09-25	Fleming Bruce A	EVP - MONTANA RENEWABLES	Option exercise	107K	$0.00	$0	657K
2026-09-25	Mawer Stephen P	Director	Sell	25K	$0.00	$0	348K
2026-09-25	Mawer Stephen P	Director	Option exercise	61K	$0.00	$0	373K
2026-09-25	Borgmann Louis Todd	CHIEF EXECUTIVE OFFICER	Tax withholding	47K	$0.00	$0	324K
2026-09-25	Borgmann Louis Todd	CHIEF EXECUTIVE OFFICER	Option exercise	107K	$0.00	$0	371K
2026-07-09	Mawer Stephen P	Director	Tax withholding	6K	$0.00	$0	312K
2026-07-09	Mawer Stephen P	Director	Option exercise	14K	$0.00	$0	317K
2026-07-09	Raymond Paul C	Director	Tax withholding	3K	$0.00	$0	29K
2026-07-09	Raymond Paul C	Director	Option exercise	7K	$0.00	$0	32K
2026-07-09	Sajkowski Daniel J	Director	Tax withholding	3K	$0.00	$0	82K
2026-07-09	Sajkowski Daniel J	Director	Option exercise	7K	$0.00	$0	85K
2026-07-09	Schumacher Amy M	Director	Option exercise	7K	$0.00	$0	258K
2026-07-09	Quintana Julio M	Director	Option exercise	7K	$0.00	$0	7K
2026-07-09	NARWOLD KAREN G	Director	Option exercise	7K	$0.00	$0	7K
2026-07-09	Twitchell Karen A.	Director	Option exercise	7K	$0.00	$0	13K
2026-07-09	Boss John G.	Director	Tax withholding	3K	$0.00	$0	33K
2026-07-09	Boss John G.	Director	Option exercise	7K	$0.00	$0	36K
2026-07-01	Sajkowski Daniel J	Director	Sell	4K	$36.16	$153K	78K
2026-06-05	Heritage Group	10% owner, 13(d) 10% Group Member	Gift	540K	$0.00	$0	12.4M
2026-05-15	Heritage Group	10% owner, 13(d) 10% Group Member	Sell	627K	$32.54	$20.4M	13.0M
2026-05-15	Heritage Group	10% owner, 13(d) 10% Group Member	X	1.0M	$20.00	$20.4M	13.6M
2026-04-01	Sajkowski Daniel J	Director	Sell	3K	$34.46	$114K	82K
2026-03-09	Morical Gregory J	SVP, GENERAL COUNSEL	Tax withholding	7K	$0.00	$0	48K
2026-03-09	Morical Gregory J	SVP, GENERAL COUNSEL	Option exercise	15K	$0.00	$0	55K
2026-03-09	Obermeier Scott	EVP - SPECIALTIES	Tax withholding	11K	$0.00	$0	238K
2026-03-09	Obermeier Scott	EVP - SPECIALTIES	Option exercise	24K	$0.00	$0	248K
2026-03-09	Fleming Bruce A	EVP - MONTANA RENEWABLES	Tax withholding	8K	$0.00	$0	550K
2026-03-09	Fleming Bruce A	EVP - MONTANA RENEWABLES	Option exercise	21K	$0.00	$0	558K
2026-03-09	Mawer Stephen P	Director	Tax withholding	13K	$0.00	$0	303K
2026-03-09	Mawer Stephen P	Director	Option exercise	28K	$0.00	$0	316K
2026-03-09	Borgmann Louis Todd	CHIEF EXECUTIVE OFFICER	Tax withholding	22K	$0.00	$0	264K
2026-03-09	Borgmann Louis Todd	CHIEF EXECUTIVE OFFICER	Option exercise	50K	$0.00	$0	286K
2025-12-17	Fleming Bruce A	EVP - MONTANA RENEWABLES	Gift	50K	$0.00	$0	537K
2025-12-04	Sajkowski Daniel J	Director	Option exercise	5K	$0.00	$0	87K
2025-12-04	Sajkowski Daniel J	Director	Sell	2K	$0.00	$0	85K
2025-12-04	Schumacher Amy M	Director	Option exercise	5K	$0.00	$0	251K
2025-12-04	Sajkowski Daniel J	Director	Sell	2K	$0.00	$0	167K
2025-12-04	Sajkowski Daniel J	Director	Option exercise	5K	$0.00	$0	169K
2025-12-04	Twitchell Karen A.	Director	Option exercise	3K	$0.00	$0	6K
2025-12-04	Straumins Jennifer	Director	Option exercise	5K	$0.00	$0	943K
2025-12-04	Raymond Paul C	Director	Option exercise	5K	$0.00	$0	25K
2025-12-04	Boss John G.	Director	Sell	1K	$0.00	$0	29K
2025-12-04	Boss John G.	Director	Option exercise	3K	$0.00	$0	30K
2025-07-01	Sajkowski Daniel J	Director	Sell	2K	$15.77	$32K	82K
2025-06-24	Sajkowski Daniel J	Director	Sell	2K	$0.00	$0	84K
2025-06-24	Sajkowski Daniel J	Director	Option exercise	4K	$0.00	$0	86K
2025-06-24	Mawer Stephen P	Director	Sell	3K	$0.00	$0	288K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

Planned sales (Form 144)

Newest first. JSON

2 Form 144 notices on file for CLMT worth $272K at the prices reported; 0 in the last 90 days worth $0. Latest: DANIEL J SAJKOWSKI 2011 TRUST filed on 2026-07-01 to sell 4,240 shares ($153K) from 2026-07-01.

Filed	Seller	Shares	Market value	Of outstanding	Sale from	Broker
2026-07-01	DANIEL J SAJKOWSKI 2011 TRUSTDirector	4K	$153K	0.005%	2026-07-01	Morgan Stanley Smith Barney LLC Executive Financial Services
2026-04-01	DANIEL J SAJKOWSKI 2011 TRUSTDirector	3K	$119K	0.004%	2026-04-01	Morgan Stanley Smith Barney LLC Executive Financial Services

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

4 holders report 5% or more of CLMT in their latest filing, 1 on Schedule 13D (active intent). The largest reported stake is The Heritage Group at 16.6% of the class (14,523,185 shares), filed 2026-06-05 for an event on 2026-06-05.

Filed	Form	Holder	Shares	Of class	Event
2026-08-14	13G/Ano. 6	Joseph Duttonindividual	4.0M	4.6%	2026-06-30
2026-08-14	13G/Ano. 6	Wasserstein Management L.P.investment adviser, partnership	4.0M	4.6%	2026-06-30
2026-08-14	13G/Ano. 6	WDO Management GP, LLCother entity	4.0M	4.6%	2026-06-30
2026-08-14	13G/Ano. 6	Rajay Bagariaindividual	4.0M	4.6%	2026-06-30
2026-08-14	13G/Ano. 6	Wasserstein Master, LPpartnership	2.5M	2.9%	2026-06-30
2026-08-14	13G/Ano. 6	Wasserstein Genpar, LLCother entity	2.5M	2.9%	2026-06-30
2026-08-14	13G/Ano. 3	Two Seas Capital GP LLCother entity, parent holding company	6.6M	7.5%	2026-06-30
2026-08-14	13G/Ano. 3	Sina Toussiindividual, parent holding company	6.6M	7.5%	2026-06-30
2026-08-14	13G/Ano. 3	Two Seas Capital LPinvestment adviser, partnership	6.6M	7.5%	2026-06-30
2026-06-05	13D/Ano. 1	The Heritage Groupparent holding company, partnership	14.5M	16.6%	2026-06-05
2026-04-02	13G/Ano. 2	Adams Asset Advisors, LLCinvestment adviser	4.1M	4.7%	2026-01-16
2026-03-26	13G/Ano. 1	The Vanguard Groupinvestment adviser	0	0.0%	2026-03-13

13F holders

Tracked managers holding CLMT at their latest 13F. JSON

5 of the 30 tracked managers held CLMT at their latest 13F, $52.0M in total at quarter-end prices. Citadel Advisors is the largest at $27.5M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 1 cut.

Fund	Quarter	Shares	Value	Of portfolio	Change in shares
Citadel Advisors	2026-06-30	762K	$27.5M	0.00%	+226K
Renaissance Technologies	2026-06-30	322K	$11.6M	0.02%	-70K
Millennium Management	2026-06-30	306K	$11.0M	0.00%	+267K
AQR Capital Management	2026-06-30	46K	$1.7M	0.00%	new
D. E. Shaw & Co.	2026-06-30	9K	$333K	0.00%	new

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

What this page is

Calumet in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Calumet (CLMT), SEC CIK 2013745, listed on Nasdaq, classified by the SEC as petroleum refining. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest: FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
Daily short volume: FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-12.JSON and CSV
Fails to deliver: SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-14.JSON and CSV
Planned sales: SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-07-01.JSON and CSV
Large holders: SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-14.JSON and CSV
13F holders: SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Earnings dates: SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-07.JSON and CSV
Insider trades: SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-25.JSON and CSV
Company record: EDGAR filing index for CIK 2013745Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits: 10 requests a minute without a key, 30 with a free key from a free account.

How to read it

Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Other companies the SEC classifies as petroleum refining

Other company pages

Datasets

Frequently Asked Questions

How much of CLMT is sold short?

3,582,305 shares were held short at the 2026-09-30 settlement, 2.1 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.

What is CLMT's daily short volume?

On 2026-10-12, 187,456 of the 291,229 CLMT shares reported to FINRA were sold short, 64.4% of the day's reported volume. Short volume is a flow for one day, not a position.

Does CLMT have fails to deliver?

The SEC's latest file shows 52 CLMT shares failed to deliver at settlement 2026-09-14. Fails are reported per settlement date and published twice a month with a lag.

Are CLMT insiders buying or selling?

Insiders at CLMT reported 1 open-market sell worth $0 in the last 90 days and no open-market buys. Latest filing: Morical Gregory J (SVP, GENERAL COUNSEL) on 2026-09-25.

Have CLMT insiders filed to sell?

Who owns 5% or more of CLMT?

Which tracked 13F managers own CLMT?

5 of the 30 tracked 13F managers held CLMT shares at their latest filing, $52.0M in all. The largest: Ken Griffin's Citadel Advisors (762K shares, $27.5M), Renaissance Technologies (322K shares, $11.6M), Izzy Englander's Millennium Management (306K shares, $11.0M), Cliff Asness's AQR Capital Management (46K shares, $1.7M), D. E. Shaw & Co. (9K shares, $333K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.