Smurfit Westrock (SW)

Smurfit Westrock on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, earnings dates and insider trades. Listed on NYSE, classified by the SEC as paperboard containers & boxes.

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26.4M

Short interest

settlement 2026-09-30

5.5

Days to cover

-0.4 days vs prior

55.2%

Short share of volume

2026-10-09

301

Fails to deliver

settlement 2026-09-14

Wed 28 Oct

Next earnings

estimated date

Insider flow, 90 days

0 buys, 0 sells

As of 2026-10-09.

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 SW is 26,395,328 shares, up 3,890,340 shares over the last month. Over the last 48 readings it ranged from 14,341,590 shares (31 January 2025) to 32,476,624 shares (31 March 2026). At the reported average volume of 4.8M shares a day that is 5.5 days to cover.

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Settlement	Shares short	Change	Avg daily volume	Days to cover
2026-09-30	26,395,328	+10.2%	4,785,635	5.52
2026-09-15	23,954,818	+6.4%	4,042,072	5.93
2026-08-31	22,504,988	+7.1%	4,426,277	5.08
2026-08-14	21,012,230	-16.7%	4,272,943	4.92
2026-07-31	25,227,020	-1.1%	5,848,183	4.31
2026-07-15	25,508,021	-7.7%	5,097,711	5.00
2026-06-30	27,647,502	-2.4%	7,045,309	3.92
2026-06-15	28,316,803	+3.3%	5,792,454	4.89
2026-05-29	27,410,385	+1.6%	4,872,507	5.63
2026-05-15	26,982,156	-7.0%	4,775,895	5.65
2026-04-30	29,026,624	-5.4%	5,932,905	4.89
2026-04-15	30,688,365	-5.5%	4,003,166	7.67
2026-03-31	32,476,624	+8.4%	6,506,412	4.99
2026-03-13	29,945,899	+12.9%	6,207,758	4.82
2026-02-27	26,524,502	-4.0%	6,375,082	4.16
2026-02-13	27,614,975	+18.2%	8,969,171	3.08
2026-01-30	23,362,819	-0.1%	5,620,229	4.16
2026-01-15	23,375,567	+4.6%	5,145,520	4.54
2025-12-31	22,339,889	-2.1%	4,415,080	5.06
2025-12-15	22,825,824	+4.5%	5,483,778	4.16
2025-11-28	21,852,949	-0.8%	5,123,712	4.27
2025-11-14	22,040,538	+9.8%	5,673,120	3.89
2025-10-31	20,069,082	-2.7%	5,525,852	3.63
2025-10-15	20,625,000	-0.3%	5,108,368	4.04

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 9 October 2026, the short share of SW volume is 55.2%, down 11.2 points over the last five sessions. Over the last 30 readings it ranged from 33.9% (15 September 2026) to 84.8% (8 September 2026). The latest reading is 9.4 points below the 30-session average of 64.6%, on 818K shares reported.

Date	Short volume	Total volume	Short share	Exempt
2026-10-09	452K	818K	55.2%	804
2026-10-08	890K	1.7M	51.2%	81
2026-10-07	725K	1.3M	56.8%	5,717
2026-10-06	431K	809K	53.2%	748
2026-10-05	617K	960K	64.3%	20
2026-10-02	843K	1.3M	66.4%	1,697
2026-10-01	1.1M	1.6M	66.3%	311
2026-09-30	930K	1.6M	57.1%	22
2026-09-29	656K	1.0M	63.8%	1,756
2026-09-28	1.0M	2.3M	44.9%	876
2026-09-25	766K	1.0M	76.0%	1,257
2026-09-24	1.3M	1.9M	69.5%	1,941
2026-09-23	1.5M	2.0M	74.8%	400
2026-09-22	821K	1.2M	68.3%	424
2026-09-21	716K	1.1M	63.1%	816
2026-09-18	794K	1.2M	67.7%	0
2026-09-17	882K	1.3M	66.3%	187
2026-09-16	969K	1.4M	69.8%	0
2026-09-15	725K	2.1M	33.9%	204
2026-09-14	914K	1.2M	77.1%	6,514
2026-09-11	736K	1.3M	55.6%	25
2026-09-10	696K	1.0M	68.6%	119
2026-09-09	865K	1.2M	71.9%	858
2026-09-08	1.1M	1.3M	84.8%	157
2026-09-04	556K	1.0M	53.0%	0
2026-09-03	565K	846K	66.8%	0
2026-09-02	747K	1.2M	61.6%	899
2026-09-01	1.5M	2.0M	74.4%	1,265
2026-08-31	1.2M	1.4M	84.3%	220
2026-08-28	1.5M	2.0M	72.1%	1,145

Fails to deliver

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

As of 14 September 2026, the fails-to-deliver balance in SW is 301 shares, down 37,540 shares over the last settlement date. Over the last 30 readings it ranged from 4 shares (9 July 2026) to 499,456 shares (29 July 2026). The latest reading sits at the bottom of that range.

Settlement	Shares failed	Price	Value
2026-09-14	301	$43.22	$13K
2026-09-10	37,841	$42.20	$1.6M
2026-09-08	27	$45.83	$1K
2026-09-04	30	$45.26	$1K
2026-09-02	579	$45.43	$26K
2026-08-31	650	$48.29	$31K
2026-08-26	638	$49.43	$32K
2026-08-25	373	$48.69	$18K
2026-08-20	55,943	$48.71	$2.7M
2026-08-14	140	$50.02	$7K
2026-08-13	50,252	$49.25	$2.5M
2026-08-12	102,856	$49.62	$5.1M
2026-08-11	8,579	$47.59	$408K
2026-08-10	18	$48.28	$869
2026-08-07	149,627	$46.93	$7.0M
2026-08-04	8,733	$46.88	$409K
2026-08-03	11,505	$45.97	$529K
2026-07-30	478	$48.26	$23K
2026-07-29	499,456	$50.80	$25.4M
2026-07-27	3,057	$48.56	$148K
2026-07-23	88,079	$44.51	$3.9M
2026-07-17	312,662	$44.77	$14.0M
2026-07-16	350,433	$43.59	$15.3M
2026-07-14	3,695	$43.15	$159K
2026-07-10	78	$42.99	$3K
2026-07-09	4	$42.08	$168
2026-07-02	25,406	$46.09	$1.2M
2026-07-01	1,271	$46.26	$59K
2026-06-30	165,319	$46.17	$7.6M
2026-06-29	7,979	$46.98	$375K

Insider trades

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

No open-market insider trades were reported for SW in the last 90 days. The most recent filings are listed below. Latest filing: Rasmussen Jorgen Buhl (Director) on 2026-09-10.

Date	Insider	Title	Type	Shares	Price	Value	Owned after
2026-09-10	Rasmussen Jorgen Buhl	Director	Grant	48	$0.00	$0	15K
2026-09-10	Brown Carole Lynnette	Director	Grant	48	$0.00	$0	7K
2026-09-10	BERNLOHR TIMOTHY J	Director	Grant	48	$0.00	$0	58K
2026-09-10	Arnold Colleen F.	Director	Grant	344	$0.00	$0	37K
2026-09-10	Harrison Suzan F.	Director	Grant	48	$0.00	$0	28K
2026-09-10	Hietala Kaisa	Director	Grant	48	$0.00	$0	10K
2026-09-10	Finan Irial	Director	Grant	75	$0.00	$0	59K
2026-09-10	WILSON ALAN D	Director	Grant	674	$0.00	$0	68K
2026-09-10	FergusonMchugh MaryLynn	Director	Grant	48	$0.00	$0	9K
2026-09-10	Fairweather Carol	Director	Grant	48	$0.00	$0	12K
2026-09-10	Bowles Ken	Executive VP and CFO	Grant	140	$0.00	$0	174K
2026-09-10	Garren Ben	See remarks	Grant	56	$0.00	$0	15K
2026-09-10	Sellier Laurent	See remarks	Grant	140	$0.00	$0	139K
2026-09-10	Henao Alvaro	See remarks	Grant	35	$0.00	$0	73K
2026-09-10	Mayer Saverio	See remarks	Grant	119	$0.00	$0	242K
2026-09-10	Page Irene	Chief Accounting Officer	Grant	23	$0.00	$0	63K
2026-09-10	SMURFIT ANTHONY P J	President and CEO	Grant	486	$0.00	$0	1.7M
2026-08-14	SMURFIT ANTHONY P J	President and Group CEO	Grant	784	$0.00	$0	1.7M
2026-08-14	Page Irene	Chief Accounting Officer	Grant	29	$0.00	$0	63K
2026-08-14	Mayer Saverio	See remarks	Grant	195	$0.00	$0	242K
2026-08-14	Sellier Laurent	See remarks	Grant	234	$0.00	$0	139K
2026-08-14	Henao Alvaro	See remarks	Grant	67	$0.00	$0	73K
2026-08-14	Garren Ben	See remarks	Grant	71	$0.00	$0	15K
2026-08-14	Bowles Ken	Executive VP and Group CFO	Grant	234	$0.00	$0	174K
2026-06-10	Hietala Kaisa	Director	Grant	51	$0.00	$0	10K
2026-06-10	BERNLOHR TIMOTHY J	Director	Grant	51	$0.00	$0	58K
2026-06-10	WILSON ALAN D	Director	Grant	721	$0.00	$0	67K
2026-06-10	Fairweather Carol	Director	Grant	51	$0.00	$0	12K
2026-06-10	Brown Carole Lynnette	Director	Grant	51	$0.00	$0	7K
2026-06-10	Harrison Suzan F.	Director	Grant	51	$0.00	$0	28K
2026-06-10	Rasmussen Jorgen Buhl	Director	Grant	51	$0.00	$0	15K
2026-06-10	Arnold Colleen F.	Director	Grant	368	$0.00	$0	36K
2026-06-10	Page Irene	Chief Accounting Officer	Grant	25	$0.00	$0	63K
2026-06-10	Bowles Ken	Executive VP and Group CFO	Grant	150	$0.00	$0	174K
2026-06-10	SMURFIT ANTHONY P J	President and Group CEO	Grant	521	$0.00	$0	1.7M
2026-06-10	FergusonMchugh MaryLynn	Director	Grant	51	$0.00	$0	9K
2026-06-10	Sellier Laurent	See remarks	Grant	150	$0.00	$0	139K
2026-06-10	Mayer Saverio	See remarks	Grant	127	$0.00	$0	241K
2026-06-10	Henao Alvaro	See remarks	Grant	38	$0.00	$0	73K
2026-06-10	Garren Ben	See remarks	Grant	60	$0.00	$0	15K
2026-06-10	Finan Irial	Director	Grant	80	$0.00	$0	59K
2026-06-10	Arnold Colleen F.	Director	Grant	368	$0.00	$0	36K
2026-05-15	Sellier Laurent	See remarks	Grant	303	$0.00	$0	138K
2026-05-15	SMURFIT ANTHONY P J	President and Group CEO	Grant	1K	$0.00	$0	1.7M
2026-05-15	Page Irene	Chief Accounting Officer	Grant	38	$0.00	$0	63K
2026-05-15	Mayer Saverio	See remarks	Grant	253	$0.00	$0	241K
2026-05-15	Henao Alvaro	See remarks	Grant	87	$0.00	$0	73K
2026-05-15	Garren Ben	See remarks	Grant	92	$0.00	$0	15K
2026-05-15	Bowles Ken	Executive VP and Group CFO	Grant	303	$0.00	$0	174K
2026-05-01	WILSON ALAN D	Director	Tax withholding	2K	$38.39	$82K	66K

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

4 Form 144 notices on file for SW worth $16.8M at the prices reported; 0 in the last 90 days worth $0. Latest: SMURFIT ANTHONY P J filed on 2026-02-19 to sell 40,000 shares ($2.1M) from 2026-02-19.

Filed	Seller	Shares	Market value	Of outstanding	Sale from	Broker
2026-02-19	SMURFIT ANTHONY P JOfficer, Director	40K	$2.1M	0.008%	2026-02-19	Fidelity Brokerage Services LLC
2026-02-19	Bowles KenOfficer, Director	10K	$513K	0.002%	2026-02-19	Fidelity Brokerage Services LLC
2026-02-18	Laurent SellierOfficer	6K	$289K	0.001%	2026-02-18	Societe Generale-agence
2026-02-17	SKG Employee TrustThe Trust is considered an affiliate of SW	275K	$13.9M	0.053%	2026-02-17	Stifel Nicolaus & Company Inc

Large holders (13D and 13G)

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

3 holders report 5% or more of SW in their latest filing, all on Schedule 13G (passive). The largest reported stake is Capital Research Global Investors at 8.1% of the class (42,655,360 shares), filed 2026-08-12 for an event on 2026-06-30.

Filed	Form	Holder	Shares	Of class	Event
2026-08-12	13G/Ano. 2	Capital Research Global Investorsinvestment adviser	42.7M	8.1%	2026-06-30
2026-08-07	13G	STATE STREET CORPORATIONparent holding company	28.1M	5.4%	2026-06-30
2026-04-28	13G	Vanguard Capital Managementinvestment adviser	39.3M	7.5%	2026-03-31
2026-03-27	13G/Ano. 2	The Vanguard Groupinvestment adviser	0	0.0%	2026-03-13

13F holders

Tracked managers holding SW at their latest 13F. JSON

5 of the 30 tracked managers held SW at their latest 13F, $373.0M in total at quarter-end prices. AQR Capital Management is the largest at $127.4M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 2 cut.

Fund	Quarter	Shares	Value	Of portfolio	Change in shares
AQR Capital Management	2026-06-30	2.8M	$127.4M	0.04%	-2.2M
Citadel Advisors	2026-06-30	2.0M	$93.3M	0.01%	+1.5M
Soros Fund Management	2026-06-30	1.5M	$70.0M	0.86%	-1.0M
Millennium Management	2026-06-30	1.3M	$60.5M	0.02%	new
Bridgewater Associates	2026-06-30	472K	$21.8M	0.09%	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

Smurfit Westrock 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 Smurfit Westrock (SW), SEC CIK 2005951, listed on NYSE, classified by the SEC as paperboard containers & boxes. 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 2026-10-09.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 2026-02-19.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 2026-08-12.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 2026-07-29.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 2026-09-10.JSON and CSV
Company record: EDGAR filing index for CIK 2005951Ticker, 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 paperboard containers & boxes

Datasets

Frequently Asked Questions

How much of SW is sold short?

26,395,328 shares were held short at the 2026-09-30 settlement, 5.5 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 SW's daily short volume?

On 2026-10-09, 451,721 of the 818,028 SW shares reported to FINRA were sold short, 55.2% of the day's reported volume. Short volume is a flow for one day, not a position.

Does SW have fails to deliver?

The SEC's latest file shows 301 SW shares failed to deliver at settlement 2026-09-14. Fails are reported per settlement date and published twice a month with a lag.

Are SW insiders buying or selling?

No open-market insider trades were reported for SW in the last 90 days. The most recent filings are listed below. Latest filing: Rasmussen Jorgen Buhl (Director) on 2026-09-10.

Have SW insiders filed to sell?

4 Form 144 notices on file for SW worth $16.8M at the prices reported; 0 in the last 90 days worth $0. Latest: SMURFIT ANTHONY P J filed on 2026-02-19 to sell 40,000 shares ($2.1M) from 2026-02-19.

Who owns 5% or more of SW?

Which tracked 13F managers own SW?

5 of the 30 tracked 13F managers held SW shares at their latest filing, $373.0M in all. The largest: Cliff Asness's AQR Capital Management (2.8M shares, $127.4M), Ken Griffin's Citadel Advisors (2.0M shares, $93.3M), George Soros's Soros Fund Management (1.5M shares, $70.0M), Izzy Englander's Millennium Management (1.3M shares, $60.5M), Ray Dalio's Bridgewater Associates (472K shares, $21.8M).

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

Smurfit Westrock (SW)

Short interest

Daily short volume

Fails to deliver

Insider trades

Planned sales (Form 144)

Large holders (13D and 13G)

13F holders

Smurfit Westrock in the regulatory record

Source and updates

How to read it

Other companies the SEC classifies as paperboard containers & boxes

Other company pages

Datasets

Frequently Asked Questions