Innospec (IOSP)
Innospec on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as chemicals & allied products.
492K
Short interest
settlement 2026-09-30
1.9
Days to cover
-1.5 days vs prior
55.0%
Short share of volume
2026-10-23
22
Fails to deliver
settlement 2026-09-28
Wed 4 Nov
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-10-23.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in IOSP is 492,111 shares, up 25,377 shares over the last month. Over the last 48 readings it ranged from 183,165 shares (13 June 2025) to 579,072 shares (15 October 2025). At the reported average volume of 263K shares a day that is 1.9 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/iosp" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 492,111 | -3.7% | 263,066 | 1.87 |
| 2026-09-15 | 511,052 | +9.5% | 149,831 | 3.41 |
| 2026-08-31 | 466,734 | +0.6% | 164,947 | 2.83 |
| 2026-08-14 | 463,878 | +1.9% | 194,077 | 2.39 |
| 2026-07-31 | 455,159 | -6.1% | 153,371 | 2.97 |
| 2026-07-15 | 484,889 | -0.5% | 130,422 | 3.72 |
| 2026-06-30 | 487,124 | +19.3% | 247,835 | 1.97 |
| 2026-06-15 | 408,184 | +8.9% | 189,274 | 2.16 |
| 2026-05-29 | 374,725 | +9.8% | 181,113 | 2.07 |
| 2026-05-15 | 341,197 | -30.5% | 280,059 | 1.22 |
| 2026-04-30 | 490,802 | +6.5% | 154,811 | 3.17 |
| 2026-04-15 | 460,752 | +14.2% | 213,835 | 2.15 |
| 2026-03-31 | 403,648 | +25.7% | 360,134 | 1.12 |
| 2026-03-13 | 321,014 | -24.3% | 230,678 | 1.39 |
| 2026-02-27 | 423,870 | +10.4% | 239,790 | 1.77 |
| 2026-02-13 | 383,909 | +28.9% | 195,715 | 1.96 |
| 2026-01-30 | 297,899 | -17.2% | 120,554 | 2.47 |
| 2026-01-15 | 359,671 | -31.0% | 159,161 | 2.26 |
| 2025-12-31 | 521,031 | +21.9% | 234,140 | 2.23 |
| 2025-12-15 | 427,466 | -12.8% | 282,415 | 1.51 |
| 2025-11-28 | 490,030 | +10.0% | 330,733 | 1.48 |
| 2025-11-14 | 445,524 | -15.5% | 207,247 | 2.15 |
| 2025-10-31 | 527,372 | -8.9% | 149,854 | 3.52 |
| 2025-10-15 | 579,072 | +36.6% | 186,503 | 3.10 |
| 2025-09-30 | 423,951 | +26.7% | 278,289 | 1.52 |
| 2025-09-15 | 334,515 | +6.1% | 166,210 | 2.01 |
| 2025-08-29 | 315,151 | -27.6% | 152,099 | 2.07 |
| 2025-08-15 | 435,428 | +35.3% | 214,763 | 2.03 |
| 2025-07-31 | 321,843 | +23.3% | 198,902 | 1.62 |
| 2025-07-15 | 260,930 | -29.9% | 187,344 | 1.39 |
| 2025-06-30 | 372,284 | +103.3% | 286,733 | 1.30 |
| 2025-06-13 | 183,165 | -27.9% | 201,280 | 1.00 |
| 2025-05-30 | 253,894 | +5.6% | 169,344 | 1.50 |
| 2025-05-15 | 240,518 | -17.9% | 165,656 | 1.45 |
| 2025-04-30 | 293,059 | -11.6% | 166,922 | 1.76 |
| 2025-04-15 | 331,472 | -13.4% | 222,648 | 1.49 |
| 2025-03-31 | 382,957 | -16.5% | 390,741 | 1.00 |
| 2025-03-14 | 458,811 | +52.8% | 270,469 | 1.70 |
| 2025-02-28 | 300,230 | +14.6% | 235,603 | 1.27 |
| 2025-02-14 | 262,049 | -9.3% | 100,921 | 2.60 |
| 2025-01-31 | 289,000 | -10.8% | 126,672 | 2.28 |
| 2025-01-15 | 323,946 | -15.6% | 92,608 | 3.50 |
| 2024-12-31 | 383,995 | +28.1% | 186,934 | 2.05 |
| 2024-12-13 | 299,831 | +7.5% | 86,445 | 3.47 |
| 2024-11-29 | 278,928 | +28.3% | 118,178 | 2.36 |
| 2024-11-15 | 217,490 | -3.9% | 154,830 | 1.40 |
| 2024-10-31 | 226,409 | -12.3% | 65,738 | 3.44 |
| 2024-10-15 | 258,086 | +3.1% | 76,929 | 3.35 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of IOSP volume is 55.0%, up 25.6 points over the last five sessions. Over the last 30 readings it ranged from 23.8% (1 October 2026) to 67.5% (17 September 2026). The latest reading is 9.0 points above the 30-session average of 46.0%, on 44K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 24K | 44K | 55.0% | 0 |
| 2026-10-22 | 26K | 59K | 44.2% | 0 |
| 2026-10-21 | 21K | 36K | 59.9% | 0 |
| 2026-10-20 | 65K | 115K | 56.8% | 0 |
| 2026-10-19 | 44K | 97K | 45.5% | 0 |
| 2026-10-16 | 17K | 57K | 29.4% | 0 |
| 2026-10-15 | 18K | 42K | 42.6% | 0 |
| 2026-10-14 | 15K | 35K | 43.2% | 0 |
| 2026-10-13 | 19K | 36K | 52.1% | 0 |
| 2026-10-12 | 18K | 51K | 35.9% | 0 |
| 2026-10-09 | 18K | 46K | 39.6% | 0 |
| 2026-10-08 | 29K | 61K | 47.6% | 0 |
| 2026-10-07 | 41K | 114K | 36.0% | 0 |
| 2026-10-06 | 48K | 90K | 53.2% | 0 |
| 2026-10-05 | 24K | 42K | 56.6% | 0 |
| 2026-10-02 | 24K | 56K | 42.8% | 0 |
| 2026-10-01 | 24K | 100K | 23.8% | 0 |
| 2026-09-30 | 31K | 62K | 50.4% | 0 |
| 2026-09-29 | 18K | 39K | 47.5% | 0 |
| 2026-09-28 | 58K | 129K | 44.8% | 0 |
| 2026-09-25 | 26K | 84K | 31.5% | 0 |
| 2026-09-24 | 39K | 118K | 32.9% | 0 |
| 2026-09-23 | 49K | 118K | 41.4% | 0 |
| 2026-09-22 | 83K | 127K | 65.1% | 144 |
| 2026-09-21 | 18K | 41K | 44.3% | 0 |
| 2026-09-18 | 35K | 58K | 59.1% | 0 |
| 2026-09-17 | 39K | 57K | 67.5% | 0 |
| 2026-09-16 | 26K | 55K | 46.6% | 162 |
| 2026-09-15 | 33K | 89K | 36.7% | 1 |
| 2026-09-14 | 27K | 55K | 48.3% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 28 September 2026, the fails-to-deliver balance in IOSP is 22 shares, down 72 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (21 April 2026) to 480 shares (21 May 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-28 | 22 | $98.72 | $2K |
| 2026-09-18 | 94 | $93.18 | $9K |
| 2026-09-14 | 75 | $93.23 | $7K |
| 2026-09-11 | 152 | $93.08 | $14K |
| 2026-09-10 | 79 | $93.57 | $7K |
| 2026-09-09 | 102 | $93.37 | $10K |
| 2026-09-08 | 80 | $93.95 | $8K |
| 2026-09-04 | 46 | $93.12 | $4K |
| 2026-08-31 | 10 | $95.38 | $954 |
| 2026-08-25 | 2 | $94.73 | $189 |
| 2026-08-20 | 2 | $93.76 | $188 |
| 2026-08-14 | 42 | $93.92 | $4K |
| 2026-08-11 | 2 | $92.89 | $186 |
| 2026-07-20 | 6 | $84.25 | $506 |
| 2026-07-17 | 112 | $85.46 | $10K |
| 2026-07-10 | 3 | $80.72 | $242 |
| 2026-07-06 | 24 | $83.10 | $2K |
| 2026-06-25 | 75 | $83.39 | $6K |
| 2026-06-18 | 54 | $83.11 | $4K |
| 2026-06-15 | 184 | $86.59 | $16K |
| 2026-06-11 | 44 | $83.35 | $4K |
| 2026-06-09 | 7 | $81.38 | $570 |
| 2026-06-03 | 25 | $81.65 | $2K |
| 2026-05-21 | 480 | $78.66 | $38K |
| 2026-05-12 | 61 | $80.82 | $5K |
| 2026-05-11 | 250 | $80.55 | $20K |
| 2026-05-05 | 32 | $76.48 | $2K |
| 2026-04-30 | 1 | $75.61 | $76 |
| 2026-04-27 | 10 | $77.15 | $772 |
| 2026-04-21 | 1 | $75.48 | $75 |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for IOSP in the last 90 days. The most recent filings are listed below. Latest filing: Jones David B. (SVP, GC & CCO) on 2026-03-03.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-03-03 | Jones David B. | SVP, GC & CCO | Sell | 1K | $75.64 | $78K | 15K |
| 2026-02-27 | Cleminson Ian | EVP & CFO | Sell | 1K | $76.30 | $88K | 22K |
| 2026-02-27 | Cleminson Ian | EVP & CFO | Sell | 1K | $76.79 | $95K | 20K |
| 2026-02-27 | LANDLESS DAVID | Director | Sell | 307 | $76.79 | $24K | 8K |
| 2026-02-27 | LANDLESS DAVID | Director | Sell | 287 | $76.30 | $22K | 8K |
| 2026-02-27 | Poccia Claudia | Director | Sell | 62 | $76.79 | $5K | 7K |
| 2026-02-27 | Poccia Claudia | Director | Sell | 57 | $76.30 | $4K | 7K |
| 2026-02-27 | PADFIELD Larry | Director | Sell | 287 | $76.30 | $22K | 10K |
| 2026-02-27 | PADFIELD Larry | Director | Sell | 307 | $76.79 | $24K | 9K |
| 2026-02-27 | Blackmore Milton C | Director | Sell | 287 | $76.30 | $22K | 11K |
| 2026-02-27 | Blackmore Milton C | Director | Sell | 307 | $76.79 | $24K | 11K |
| 2026-02-27 | PADFIELD Larry | Director | Sell | 594 | $76.56 | $45K | 9K |
| 2026-02-27 | Poccia Claudia | Director | Sell | 119 | $76.56 | $9K | 7K |
| 2026-02-27 | LANDLESS DAVID | Director | Sell | 594 | $76.56 | $45K | 8K |
| 2026-02-27 | Jones David B. | SVP, GC & CCO | Tax withholding | 875 | $78.34 | $69K | 16K |
| 2026-02-27 | Williams Patrick | PRESIDENT & CEO | Tax withholding | 8K | $78.34 | $624K | 232K |
| 2026-02-27 | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | Tax withholding | 401 | $78.34 | $31K | 10K |
| 2026-02-27 | Cleminson Ian | EVP & CFO | Sell | 2K | $76.56 | $182K | 20K |
| 2026-02-27 | Blackmore Milton C | Director | Sell | 594 | $76.56 | $45K | 11K |
| 2026-02-27 | BARNES CORBIN | SVP, Corporate Dev and IR | Tax withholding | 166 | $78.34 | $13K | 13K |
| 2026-02-23 | PARRETTE LESLIE J | Director | Grant | 2K | $0.00 | $0 | 7K |
| 2026-02-23 | LANDLESS DAVID | Director | Grant | 2K | $0.00 | $0 | 8K |
| 2026-02-23 | Poccia Claudia | Director | Grant | 2K | $0.00 | $0 | 7K |
| 2026-02-23 | PADFIELD Larry | Director | Grant | 2K | $0.00 | $0 | 10K |
| 2026-02-23 | Blackmore Milton C | Director | Grant | 2K | $0.00 | $0 | 11K |
| 2026-02-23 | Williams Patrick | PRESIDENT & CEO | Grant | 21K | $0.00 | $0 | 240K |
| 2026-02-23 | Jones David B. | SVP, GC & CCO | Grant | 3K | $0.00 | $0 | 17K |
| 2026-02-23 | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | Grant | 3K | $0.00 | $0 | 11K |
| 2026-02-23 | Cleminson Ian | EVP & CFO | Grant | 4K | $0.00 | $0 | 23K |
| 2026-02-23 | BARNES CORBIN | SVP, Corporate Dev and IR | Grant | 2K | $0.00 | $0 | 13K |
| 2026-02-23 | Arnold Elizabeth K | Director | Grant | 2K | $0.00 | $0 | 6K |
| 2026-02-20 | PADFIELD Larry | Director | Sell | 1K | $81.84 | $84K | 9K |
| 2026-02-20 | PADFIELD Larry | Director | Exercise or conversion | 1K | $44.18 | $46K | 10K |
| 2026-02-20 | Blackmore Milton C | Director | Sell | 1K | $81.84 | $84K | 10K |
| 2026-02-20 | Blackmore Milton C | Director | Exercise or conversion | 1K | $44.18 | $46K | 11K |
| 2026-02-16 | Williams Patrick | PRESIDENT & CEO | Grant | 19K | $0.00 | $0 | 219K |
| 2026-02-16 | Jones David B. | SVP, GC & CCO | Grant | 2K | $0.00 | $0 | 14K |
| 2026-02-16 | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | Grant | 1K | $0.00 | $0 | 8K |
| 2026-02-16 | Cleminson Ian | EVP & CFO | Grant | 2K | $0.00 | $0 | 18K |
| 2026-02-16 | BARNES CORBIN | SVP, Corporate Dev and IR | Grant | 2K | $0.00 | $0 | 11K |
| 2025-11-14 | PARRETTE LESLIE J | Director | Buy | 340 | $74.09 | $25K | 6K |
| 2025-05-13 | BARNES CORBIN | SVP, Corporate Dev and IR | Tax withholding | 740 | $91.53 | $68K | 9K |
| 2025-05-13 | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | Tax withholding | 600 | $91.53 | $55K | 7K |
| 2025-05-13 | PARRETTE LESLIE J | Director | Sell | 176 | $90.68 | $16K | 5K |
| 2025-05-13 | PARRETTE LESLIE J | Director | Sell | 270 | $90.60 | $24K | 6K |
| 2025-03-03 | Cleminson Ian | EVP & CFO | Sell | 4K | $100.98 | $432K | 16K |
| 2025-03-03 | Williams Patrick | PRESIDENT & CEO | Tax withholding | 13K | $103.66 | $1.3M | 200K |
| 2025-02-24 | BARNES CORBIN | SVP, Corporate Dev and IR | Sell | 598 | $103.06 | $62K | 8K |
| 2025-02-24 | BARNES CORBIN | SVP, Corporate Dev and IR | Exercise or conversion | 598 | $99.68 | $60K | 9K |
| 2025-02-24 | Jones David B. | SVP, GC & CCO | Grant | 2K | $0.00 | $0 | 12K |
| 2025-02-24 | Cleminson Ian | VP & CFO | Grant | 3K | $0.00 | $0 | 20K |
| 2025-02-24 | Williams Patrick | PRESIDENT & CEO | Grant | 15K | $0.00 | $0 | 212K |
| 2025-02-24 | Arnold Elizabeth K | Director | Grant | 1K | $0.00 | $0 | 5K |
| 2025-02-24 | Blackmore Milton C | Director | Grant | 1K | $0.00 | $0 | 10K |
| 2025-02-24 | LANDLESS DAVID | Director | Grant | 1K | $0.00 | $0 | 7K |
| 2025-02-24 | PADFIELD Larry | Director | Grant | 1K | $0.00 | $0 | 9K |
| 2025-02-24 | PARRETTE LESLIE J | Director | Grant | 1K | $0.00 | $0 | 6K |
| 2025-02-24 | Poccia Claudia | Director | Grant | 1K | $0.00 | $0 | 5K |
| 2025-02-24 | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | Grant | 2K | $0.00 | $0 | 7K |
| 2025-02-24 | BARNES CORBIN | SVP, Corporate Dev and IR | Grant | 2K | $0.00 | $0 | 10K |
| 2025-02-21 | Blackmore Milton C | Director | Sell | 652 | $103.30 | $67K | 8K |
| 2025-02-21 | Jones David B. | SVP, GC & CCO | Sell | 3K | $103.30 | $319K | 10K |
| 2025-02-21 | Jones David B. | SVP, GC & CCO | Grant | 3K | $0.00 | $0 | 13K |
| 2025-02-21 | BARNES CORBIN | SVP, Corporate Dev and IR | Sell | 3K | $103.30 | $278K | 8K |
| 2025-02-21 | BARNES CORBIN | SVP, Corporate Dev and IR | Grant | 3K | $0.00 | $0 | 11K |
| 2025-02-21 | BOON PHILIP JOHN | Executive VP Business Ops | Grant | 4K | $0.00 | $0 | 24K |
| 2025-02-21 | BOON PHILIP JOHN | Executive VP Business Ops | Sell | 4K | $103.30 | $388K | 20K |
| 2025-02-21 | LANDLESS DAVID | Director | Tax withholding | 306 | $105.07 | $32K | 5K |
| 2025-02-21 | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | Grant | 2K | $0.00 | $0 | 6K |
| 2025-02-21 | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | Tax withholding | 488 | $105.07 | $51K | 6K |
| 2025-02-21 | PADFIELD Larry | Director | Sell | 196 | $103.30 | $20K | 7K |
| 2025-02-21 | Williams Patrick | PRESIDENT & CEO | Grant | 30K | $0.00 | $0 | 198K |
| 2025-02-21 | Cleminson Ian | VP & CFO | Grant | 4K | $0.00 | $0 | 17K |
| 2025-02-21 | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | Returned to company | 121 | $101.99 | $12K | 6K |
| 2025-02-21 | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | Exercise or conversion | 121 | $99.68 | $12K | 6K |
| 2025-02-21 | BARNES CORBIN | SVP, Corporate Dev and IR | Exercise or conversion | 200 | $99.68 | $20K | 8K |
| 2025-02-21 | BARNES CORBIN | SVP, Corporate Dev and IR | Returned to company | 200 | $101.99 | $20K | 8K |
| 2024-11-22 | Poccia Claudia | Director | Exercise or conversion | 300 | $99.85 | $30K | 4K |
| 2024-11-22 | Poccia Claudia | Director | Sell | 300 | $119.88 | $36K | 4K |
| 2024-11-18 | BARNES CORBIN | SVP, Corporate Dev and IR | Sell | 307 | $117.52 | $36K | 8K |
| 2024-11-18 | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | Sell | 161 | $117.52 | $19K | 5K |
| 2024-11-13 | Blackmore Milton C | Director | Exercise or conversion | 1K | $43.95 | $45K | 10K |
| 2024-11-13 | Blackmore Milton C | Director | Sell | 1K | $122.92 | $127K | 9K |
| 2024-08-26 | Cleminson Ian | VP & CFO | Sell | 200 | $116.05 | $23K | 13K |
| 2024-08-26 | Cleminson Ian | VP & CFO | Sell | 2K | $114.31 | $227K | 14K |
| 2024-08-26 | Cleminson Ian | VP & CFO | Sell | 1K | $115.24 | $139K | 13K |
| 2024-08-23 | Cleminson Ian | VP & CFO | Sell | 7K | $113.60 | $750K | 16K |
| 2024-08-13 | PARRETTE LESLIE J | Director | Buy | 143 | $105.84 | $15K | 5K |
| 2024-05-20 | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | Sell | 525 | $129.78 | $68K | 5K |
| 2024-05-16 | PARRETTE LESLIE J | Director | Buy | 189 | $131.57 | $25K | 5K |
| 2024-05-14 | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | Tax withholding | 989 | $128.82 | $127K | 5K |
| 2024-05-14 | BARNES CORBIN | SVP, Corporate Dev and IR | Tax withholding | 1K | $128.82 | $143K | 8K |
| 2024-03-01 | Jones David B. | SVP, GC & CCO | Sell | 3K | $125.79 | $314K | 10K |
| 2024-02-29 | Williams Patrick | PRESIDENT & CEO | Exercise or conversion | 4K | $99.85 | $395K | 171K |
| 2024-02-29 | Williams Patrick | PRESIDENT & CEO | Sell | 4K | $124.21 | $491K | 167K |
| 2024-02-29 | Cleminson Ian | VP & CFO | Sell | 931 | $124.07 | $116K | 23K |
| 2024-02-29 | Cleminson Ian | VP & CFO | Exercise or conversion | 931 | $99.85 | $93K | 24K |
| 2024-02-27 | Williams Patrick | PRESIDENT & CEO | Sell | 6K | $124.73 | $695K | 167K |
| 2024-02-27 | Williams Patrick | PRESIDENT & CEO | Sell | 4K | $124.12 | $508K | 173K |
| 2024-02-26 | Williams Patrick | PRESIDENT & CEO | Sell | 5K | $125.27 | $677K | 165K |
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.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON3 holders report 5% or more of IOSP in their latest filing, all on Schedule 13G (passive). The largest reported stake is Vanguard Portfolio Management at 7.5% of the class (1,870,254 shares), filed 2026-04-29 for an event on 2026-03-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-10-07 | 13G/Ano. 6 | Allspring Global Investments Holdings, LLCparent holding company | 1.2M | 4.7% | 2026-09-30 |
| 2026-07-14 | 13G | Dimensional Fund Advisors LPinvestment adviser | 1.3M | 5.3% | 2026-06-30 |
| 2026-04-30 | 13G | Vanguard Capital Managementinvestment adviser | 1.3M | 5.2% | 2026-03-31 |
| 2026-04-29 | 13G | Vanguard Portfolio Managementinvestment adviser | 1.9M | 7.5% | 2026-03-31 |
| 2026-03-27 | 13G/Ano. 12 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding IOSP at their latest 13F. JSON6 of the 30 tracked managers held IOSP at their latest 13F, $125.6M in total at quarter-end prices. Two Sigma Investments is the largest at $46.3M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 4 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Two Sigma Investments | 2026-06-30 | 569K | $46.3M | 0.03% | -24K |
| AQR Capital Management | 2026-06-30 | 483K | $39.3M | 0.01% | +170K |
| Renaissance Technologies | 2026-06-30 | 185K | $15.1M | 0.02% | +66K |
| D. E. Shaw & Co. | 2026-06-30 | 166K | $13.5M | 0.01% | -121K |
| Citadel Advisors | 2026-06-30 | 99K | $8.0M | 0.00% | -122K |
| Point72 Asset Management | 2026-06-30 | 43K | $3.5M | 0.00% | -124K |
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.
Financials
SEC XBRL, as filed. JSONIn Q2 FY 2026 (quarter ended 2026-06-30) Innospec reported revenue of $491.4M, up 11.8% from the same quarter a year earlier, and net income of $30.8M (1.25 diluted EPS). In FY 2025 it generated $138.3M of operating cash flow and spent $23.9M on buybacks and $42.4M on dividends.
- Cash
- $250.2M
- Equity
- $1.34B
- Total assets
- $1.85B
- Shares outstanding
- 24,631,047
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 FY 2026 | 2026-06-30 | $491.4M | $30.8M | 6.3% | 1.25 |
| Q1 FY 2026 | 2026-03-31 | $453.2M | $30.4M | 6.7% | 1.22 |
| Q4 FY 2025derived | 2025-12-31 | $455.6M | n/a | n/a | n/a |
| Q3 FY 2025 | 2025-09-30 | $441.9M | n/a | n/a | 0.52 |
| Q2 FY 2025 | 2025-06-30 | $439.7M | $23.5M | 5.3% | 0.94 |
| Q1 FY 2025 | 2025-03-31 | $440.8M | $32.8M | 7.4% | 1.31 |
| Q4 FY 2024derived | 2024-12-31 | $466.8M | n/a | n/a | n/a |
| Q3 FY 2024 | 2024-09-30 | $443.4M | n/a | n/a | 1.33 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | $1.78B | n/a | $138.3M | $50.3M | $23.9M | $42.4M |
| FY 2024 | 2024-12-31 | $1.85B | n/a | $184.5M | $41.4M | $700K | $38.8M |
| FY 2023 | 2023-12-31 | $1.95B | n/a | $207.3M | $62.1M | $1.1M | $35.1M |
| FY 2022 | 2022-12-31 | $1.96B | n/a | $81.7M | $39.6M | $5.9M | $31.7M |
| FY 2021 | 2021-12-31 | $1.48B | n/a | $93.2M | $39.1M | $800K | $28.8M |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-07-31 from the cover page.
What this page is
Innospec 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 Innospec (IOSP), SEC CIK 1054905, listed on Nasdaq, classified by the SEC as chemicals & allied products. 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 2026-10-23.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-28.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 2026-10-07.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
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. 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 2026-08-05.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 2026-03-03.JSON and CSV
- Company record
- EDGAR filing index for CIK 1054905Ticker, 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 chemicals & allied products
Other company pages
Datasets
Frequently Asked Questions
How much of IOSP is sold short?
What is IOSP's daily short volume?
Does IOSP have fails to deliver?
Are IOSP insiders buying or selling?
Who owns 5% or more of IOSP?
What did IOSP report last quarter?
Which tracked 13F managers own IOSP?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.