Sanofi (SNY)

Sanofi on one page: short interest, daily short volume, fails to deliver, large holders and 13F holders. Listed on Nasdaq, classified by the SEC as pharmaceutical preparations.

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11.6M

Short interest

settlement 2026-10-15

3.1

Days to cover

-0.7 days vs prior

29.3%

Short share of volume

2026-10-28

154,874

Fails to deliver

settlement 2026-09-29

As of 2026-10-28.

Short interest

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

As of 15 October 2026, short interest in SNY is 11,611,953 shares, up 2,314,370 shares over the last month. Over the last 48 readings it ranged from 3,266,430 shares (31 July 2025) to 11,611,953 shares (15 October 2026). The latest reading sits at the top of that range. At the reported average volume of 3.8M shares a day that is 3.1 days to cover.

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Settlement	Shares short	Change	Avg daily volume	Days to cover
2026-10-15	11,611,953	+9.4%	3,758,963	3.09
2026-09-30	10,611,973	+14.1%	2,823,085	3.76
2026-09-15	9,297,583	+12.9%	2,162,194	4.30
2026-08-31	8,236,195	+12.6%	2,043,998	4.03
2026-08-14	7,315,661	-28.2%	2,769,750	2.64
2026-07-31	10,194,967	+38.3%	3,760,969	2.71
2026-07-15	7,371,480	+10.9%	3,019,812	2.44
2026-06-30	6,646,490	+3.4%	5,458,507	1.22
2026-06-15	6,427,889	-4.5%	2,434,226	2.64
2026-05-29	6,729,800	+3.4%	2,380,210	2.83
2026-05-15	6,507,411	-17.6%	2,689,185	2.42
2026-04-30	7,896,235	+3.4%	2,726,857	2.90
2026-04-15	7,636,386	+3.2%	2,602,743	2.93
2026-03-31	7,398,344	+0.9%	3,329,053	2.22
2026-03-13	7,328,745	+11.7%	4,288,584	1.71
2026-02-27	6,560,718	-17.4%	4,224,061	1.55
2026-02-13	7,942,269	-4.8%	5,621,600	1.41
2026-01-30	8,342,583	-1.9%	3,590,178	2.32
2026-01-15	8,502,011	+9.8%	3,784,921	2.25
2025-12-31	7,743,573	+1.8%	1,816,762	4.26
2025-12-15	7,610,322	+21.7%	2,814,558	2.70
2025-11-28	6,252,649	+4.7%	2,550,467	2.45
2025-11-14	5,969,693	+10.7%	1,824,636	3.27
2025-10-31	5,391,754	+12.1%	2,881,495	1.87
2025-10-15	4,809,736	+17.0%	2,779,594	1.73
2025-09-30	4,111,502	-16.6%	4,614,898	1.00
2025-09-15	4,932,956	-1.9%	3,594,626	1.37
2025-08-29	5,027,757	+13.7%	1,931,610	2.60
2025-08-15	4,420,808	+35.3%	2,621,969	1.69
2025-07-31	3,266,430	-10.9%	2,389,048	1.37
2025-07-15	3,667,009	-16.5%	1,849,596	1.98
2025-06-30	4,392,782	-1.7%	2,389,859	1.84
2025-06-13	4,466,723	-2.0%	1,930,733	2.31
2025-05-30	4,556,745	+23.5%	2,247,386	2.03
2025-05-15	3,689,736	+3.7%	2,321,942	1.59
2025-04-30	3,556,966	-10.0%	3,394,931	1.05
2025-04-15	3,953,037	-1.1%	3,546,195	1.11
2025-03-31	3,998,805	-28.8%	2,500,953	1.60
2025-03-14	5,614,800	+3.6%	3,379,538	1.66
2025-02-28	5,416,836	-0.8%	1,925,535	2.81
2025-02-14	5,460,972	+11.9%	2,126,954	2.57
2025-01-31	4,882,048	-7.7%	3,034,583	1.61
2025-01-15	5,290,422	+25.5%	2,215,906	2.39
2024-12-31	4,213,987	+12.7%	2,563,419	1.64
2024-12-13	3,739,996	-17.5%	2,132,465	1.75
2024-11-29	4,532,070	-48.7%	2,612,329	1.73
2024-11-15	8,830,272	+8.7%	1,960,891	4.50
2024-10-31	8,123,732	+0.5%	2,144,097	3.79

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 28 October 2026, the short share of SNY volume is 29.3%, up 21.2 points over the last five sessions. Over the last 30 readings it ranged from 5.7% (19 October 2026) to 55.8% (1 October 2026). The latest reading is 5.4 points above the 30-session average of 23.9%, on 910K shares reported.

Date	Short volume	Total volume	Short share	Exempt
2026-10-28	267K	910K	29.3%	2,418
2026-10-27	172K	1.0M	17.1%	353
2026-10-26	338K	1.2M	27.7%	4,221
2026-10-23	122K	951K	12.8%	555
2026-10-22	318K	1.8M	17.8%	4
2026-10-21	96K	1.2M	8.2%	4,251
2026-10-20	185K	1.5M	12.1%	3,271
2026-10-19	80K	1.4M	5.7%	3,309
2026-10-16	208K	1.7M	12.3%	232
2026-10-15	285K	2.3M	12.3%	100
2026-10-14	297K	2.3M	13.1%	3,736
2026-10-13	240K	1.6M	14.8%	635
2026-10-12	275K	1.2M	22.4%	193
2026-10-09	261K	853K	30.6%	1,083
2026-10-08	292K	1.4M	20.7%	776
2026-10-07	221K	811K	27.3%	2,271
2026-10-06	342K	1.3M	26.3%	1,137
2026-10-05	533K	1.6M	33.1%	5,933
2026-10-02	960K	1.9M	51.7%	623
2026-10-01	1.5M	2.7M	55.8%	2,918
2026-09-30	617K	1.8M	33.7%	689
2026-09-29	370K	1.2M	30.3%	2,754
2026-09-28	349K	1.1M	30.7%	0
2026-09-25	225K	816K	27.6%	1,371
2026-09-24	396K	1.3M	31.4%	973
2026-09-23	587K	1.7M	35.4%	5,015
2026-09-22	321K	1.5M	21.6%	117
2026-09-21	302K	1.2M	24.8%	2,470
2026-09-18	147K	782K	18.8%	286
2026-09-17	205K	1.6M	12.7%	75

Fails to deliver

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

As of 29 September 2026, the fails-to-deliver balance in SNY is 154,874 shares, up 154,771 shares over the last settlement date. Over the last 30 readings it ranged from 7 shares (15 July 2026) to 284,369 shares (30 July 2026).

Settlement	Shares failed	Price	Value
2026-09-29	154,874	$41.18	$6.4M
2026-09-08	103	$44.24	$5K
2026-08-27	1,550	$45.42	$70K
2026-08-25	1,546	$45.69	$71K
2026-08-24	862	$45.85	$40K
2026-08-21	40	$45.15	$2K
2026-07-30	284,369	$44.85	$12.8M
2026-07-24	9,109	$43.36	$395K
2026-07-23	80	$43.79	$4K
2026-07-22	106	$43.75	$5K
2026-07-20	179	$44.66	$8K
2026-07-15	7	$43.18	$302
2026-07-13	7,734	$43.50	$336K
2026-07-09	82	$42.78	$4K
2026-07-06	2,714	$43.16	$117K
2026-07-02	32,851	$41.63	$1.4M
2026-07-01	3,996	$42.66	$170K
2026-06-24	91	$41.60	$4K
2026-06-23	5,158	$41.78	$216K
2026-06-22	28,609	$42.38	$1.2M
2026-06-18	425	$42.50	$18K
2026-06-15	103	$44.25	$5K
2026-06-11	292	$43.57	$13K
2026-06-10	791	$44.73	$35K
2026-06-08	42,256	$45.02	$1.9M
2026-06-05	319	$44.38	$14K
2026-06-03	449	$42.80	$19K
2026-05-12	75	$42.50	$3K
2026-05-08	44	$43.18	$2K
2026-05-05	2,197	$43.35	$95K

Large holders (13D and 13G)

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

2 holders report 5% or more of SNY in their latest filing, all on Schedule 13G (passive). The largest reported stake is AMUNDI ASSET MANAGEMENT at 5.7% of the class (68,832,052 shares), filed 2026-10-26 for an event on 2026-09-30.

Filed	Form	Holder	Shares	Of class	Event
2026-10-26	13G/Ano. 13	AMUNDI ASSET MANAGEMENTparent holding company	68.8M	5.7%	2026-09-30
2026-10-26	13G/Ano. 13	AMUNDIparent holding company	68.8M	5.7%	2026-09-30

13F holders

Tracked managers holding SNY at their latest 13F. JSON

6 of the 30 tracked managers held SNY at their latest 13F, $745.7M in total at quarter-end prices. Fisher Asset Management is the largest at $453.4M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 1 cut.

Fund	Quarter	Shares	Value	Of portfolio	Change in shares
Fisher Asset Management	2026-06-30	10.6M	$453.4M	0.14%	-815K
Millennium Management	2026-06-30	3.7M	$159.0M	0.06%	+287K
Citadel Advisors	2026-06-30	1.9M	$79.0M	0.01%	+364K
Point72 Asset Management	2026-06-30	820K	$35.0M	0.04%	new
AQR Capital Management	2026-06-30	246K	$10.5M	0.00%	+167K
Bridgewater Associates	2026-06-30	207K	$8.8M	0.04%	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

Sanofi 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 Sanofi (SNY), SEC CIK 1121404, listed on Nasdaq, classified by the SEC as pharmaceutical preparations. 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 2026-10-15.JSON and CSV
Daily short volume: FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-28.JSON and CSV
Fails to deliver: SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-29.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 2026-10-26.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
Company record: EDGAR filing index for CIK 1121404Ticker, 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 pharmaceutical preparations

Other company pages

Datasets

Frequently Asked Questions

How much of SNY is sold short?

11,611,953 shares were held short at the 2026-10-15 settlement, 3.1 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 SNY's daily short volume?

On 2026-10-28, 266,965 of the 909,651 SNY shares reported to FINRA were sold short, 29.3% of the day's reported volume. Short volume is a flow for one day, not a position.

Does SNY have fails to deliver?

The SEC's latest file shows 154,874 SNY shares failed to deliver at settlement 2026-09-29. Fails are reported per settlement date and published twice a month with a lag.

Are SNY insiders buying or selling?

No Form 4 filings for SNY are on record.

Who owns 5% or more of SNY?

Which tracked 13F managers own SNY?

6 of the 30 tracked 13F managers held SNY shares at their latest filing, $745.7M in all. The largest: Ken Fisher's Fisher Asset Management (10.6M shares, $453.4M), Izzy Englander's Millennium Management (3.7M shares, $159.0M), Ken Griffin's Citadel Advisors (1.9M shares, $79.0M), Steve Cohen's Point72 Asset Management (820K shares, $35.0M), Cliff Asness's AQR Capital Management (246K shares, $10.5M), Ray Dalio's Bridgewater Associates (207K shares, $8.8M).

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