Hyliion Holdings (HYLN)
Hyliion Holdings on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on NYSE, classified by the SEC as truck & bus bodies.
15.0M
Short interest
settlement 2026-10-15
9.5
Days to cover
+2.6 days vs prior
54.1%
Short share of volume
2026-11-03
82
Fails to deliver
settlement 2026-10-06
Wed 11 Nov
Next earnings
estimated date
$170K
Insider flow, 90 days
1 buys, 0 sells
As of 2026-11-03.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in HYLN is 14,990,996 shares, down 999,451 shares over the last month. Over the last 48 readings it ranged from 10,209,812 shares (29 May 2026) to 18,808,341 shares (30 May 2025). At the reported average volume of 1.6M shares a day that is 9.5 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 14,990,996 | -1.9% | 1,571,786 | 9.54 |
| 2026-09-30 | 15,282,391 | -4.4% | 2,202,856 | 6.94 |
| 2026-09-15 | 15,990,447 | -9.7% | 1,523,352 | 10.50 |
| 2026-08-31 | 17,697,586 | -0.7% | 2,392,910 | 7.40 |
| 2026-08-14 | 17,826,174 | +7.6% | 4,183,842 | 4.26 |
| 2026-07-31 | 16,560,477 | +9.5% | 2,796,537 | 5.92 |
| 2026-07-15 | 15,120,944 | +33.8% | 2,810,572 | 5.38 |
| 2026-06-30 | 11,299,745 | +6.3% | 6,321,674 | 1.79 |
| 2026-06-15 | 10,627,659 | +4.1% | 6,548,881 | 1.62 |
| 2026-05-29 | 10,209,812 | -21.6% | 8,153,451 | 1.25 |
| 2026-05-15 | 13,028,206 | -6.0% | 3,378,109 | 3.86 |
| 2026-04-30 | 13,860,494 | +2.1% | 734,136 | 18.88 |
| 2026-04-15 | 13,569,273 | +0.6% | 722,390 | 18.78 |
| 2026-03-31 | 13,488,964 | +1.7% | 1,062,914 | 12.69 |
| 2026-03-13 | 13,257,897 | -1.4% | 1,073,804 | 12.35 |
| 2026-02-27 | 13,448,742 | +3.5% | 1,059,641 | 12.69 |
| 2026-02-13 | 12,997,046 | +2.4% | 989,482 | 13.14 |
| 2026-01-30 | 12,697,827 | -11.3% | 835,475 | 15.20 |
| 2026-01-15 | 14,320,476 | -3.1% | 908,605 | 15.76 |
| 2025-12-31 | 14,773,909 | -5.6% | 1,269,609 | 11.64 |
| 2025-12-15 | 15,648,292 | -1.4% | 849,254 | 18.43 |
| 2025-11-28 | 15,873,704 | +0.0% | 1,177,970 | 13.48 |
| 2025-11-14 | 15,872,292 | +1.1% | 2,040,207 | 7.78 |
| 2025-10-31 | 15,695,216 | -6.7% | 1,905,788 | 8.24 |
| 2025-10-15 | 16,826,335 | +1.6% | 1,957,250 | 8.60 |
| 2025-09-30 | 16,563,513 | -1.4% | 1,869,965 | 8.86 |
| 2025-09-15 | 16,807,943 | -0.3% | 691,382 | 24.31 |
| 2025-08-29 | 16,856,408 | -1.7% | 1,107,188 | 15.22 |
| 2025-08-15 | 17,147,072 | -1.0% | 999,549 | 17.15 |
| 2025-07-31 | 17,314,157 | -0.1% | 948,417 | 18.26 |
| 2025-07-15 | 17,337,676 | -3.2% | 824,667 | 21.02 |
| 2025-06-30 | 17,912,406 | +0.5% | 1,170,960 | 15.30 |
| 2025-06-13 | 17,832,843 | -5.2% | 903,302 | 19.74 |
| 2025-05-30 | 18,808,341 | +14.9% | 6,968,497 | 2.70 |
| 2025-05-15 | 16,361,489 | +0.6% | 1,035,039 | 15.81 |
| 2025-04-30 | 16,260,950 | +3.9% | 696,881 | 23.33 |
| 2025-04-15 | 15,646,720 | -4.5% | 851,941 | 18.37 |
| 2025-03-31 | 16,383,037 | -2.8% | 973,554 | 16.83 |
| 2025-03-14 | 16,862,332 | +5.5% | 1,202,650 | 14.02 |
| 2025-02-28 | 15,978,124 | +0.1% | 959,487 | 16.65 |
| 2025-02-14 | 15,959,509 | +25.3% | 1,045,220 | 15.27 |
| 2025-01-31 | 12,741,430 | -2.8% | 859,346 | 14.83 |
| 2025-01-15 | 13,112,755 | -3.3% | 1,265,827 | 10.36 |
| 2024-12-31 | 13,559,305 | +1.7% | 1,288,879 | 10.52 |
| 2024-12-13 | 13,328,776 | +7.2% | 1,414,386 | 9.42 |
| 2024-11-29 | 12,430,857 | +2.9% | 2,262,511 | 5.49 |
| 2024-11-15 | 12,080,093 | +7.1% | 1,215,459 | 9.94 |
| 2024-10-31 | 11,280,463 | -3.3% | 758,252 | 14.88 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 3 November 2026, the short share of HYLN volume is 54.1%, up 3.7 points over the last five sessions. Over the last 30 readings it ranged from 41.9% (6 October 2026) to 70.9% (19 October 2026). The latest reading is in line with the 30-session average of 53.3%, on 649K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-03 | 351K | 649K | 54.1% | 0 |
| 2026-11-02 | 199K | 460K | 43.3% | 50 |
| 2026-10-30 | 444K | 702K | 63.3% | 890 |
| 2026-10-29 | 297K | 508K | 58.5% | 3,076 |
| 2026-10-28 | 165K | 297K | 55.6% | 557 |
| 2026-10-27 | 219K | 435K | 50.4% | 1,650 |
| 2026-10-26 | 308K | 489K | 62.9% | 976 |
| 2026-10-23 | 498K | 805K | 61.8% | 1,253 |
| 2026-10-22 | 245K | 484K | 50.6% | 0 |
| 2026-10-21 | 365K | 645K | 56.6% | 0 |
| 2026-10-20 | 308K | 573K | 53.7% | 13,543 |
| 2026-10-19 | 368K | 519K | 70.9% | 500 |
| 2026-10-16 | 474K | 784K | 60.5% | 5,066 |
| 2026-10-15 | 493K | 1.1M | 43.9% | 1,440 |
| 2026-10-14 | 437K | 957K | 45.7% | 9,353 |
| 2026-10-13 | 222K | 439K | 50.5% | 11 |
| 2026-10-12 | 189K | 420K | 45.0% | 0 |
| 2026-10-09 | 200K | 381K | 52.5% | 0 |
| 2026-10-08 | 307K | 630K | 48.8% | 124 |
| 2026-10-07 | 433K | 773K | 56.1% | 1,233 |
| 2026-10-06 | 281K | 672K | 41.9% | 46,134 |
| 2026-10-05 | 665K | 1.2M | 54.7% | 15,982 |
| 2026-10-02 | 493K | 1.0M | 47.4% | 677 |
| 2026-10-01 | 295K | 559K | 52.9% | 9 |
| 2026-09-30 | 531K | 1.1M | 48.7% | 0 |
| 2026-09-29 | 360K | 705K | 51.1% | 0 |
| 2026-09-28 | 391K | 698K | 56.0% | 10,435 |
| 2026-09-25 | 313K | 537K | 58.4% | 201 |
| 2026-09-24 | 424K | 708K | 59.8% | 1,041 |
| 2026-09-23 | 487K | 1.1M | 43.9% | 730 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 6 October 2026, the fails-to-deliver balance in HYLN is 82 shares, down 471 shares over the last settlement date. Over the last 30 readings it ranged from 5 shares (19 August 2026) to 66,420 shares (26 June 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-06 | 82 | $4.14 | $339 |
| 2026-10-05 | 553 | $4.53 | $3K |
| 2026-09-30 | 14 | $4.01 | $56 |
| 2026-09-17 | 1,417 | $3.94 | $6K |
| 2026-09-16 | 8,853 | $3.95 | $35K |
| 2026-09-11 | 384 | $3.82 | $1K |
| 2026-09-08 | 144 | $3.69 | $531 |
| 2026-09-04 | 2,331 | $3.66 | $9K |
| 2026-09-02 | 36,847 | $3.42 | $126K |
| 2026-09-01 | 36,882 | $3.47 | $128K |
| 2026-08-27 | 5,513 | $3.32 | $18K |
| 2026-08-26 | 1,161 | $3.24 | $4K |
| 2026-08-25 | 3,362 | $3.15 | $11K |
| 2026-08-21 | 206 | $3.37 | $694 |
| 2026-08-20 | 6,260 | $3.67 | $23K |
| 2026-08-19 | 5 | $3.86 | $19 |
| 2026-08-18 | 3,971 | $4.09 | $16K |
| 2026-08-17 | 541 | $4.06 | $2K |
| 2026-08-11 | 15,078 | $3.93 | $59K |
| 2026-08-10 | 984 | $3.87 | $4K |
| 2026-08-04 | 619 | $3.77 | $2K |
| 2026-07-20 | 1,316 | $3.74 | $5K |
| 2026-07-17 | 395 | $3.74 | $1K |
| 2026-07-07 | 18 | $4.29 | $77 |
| 2026-07-06 | 11 | $4.32 | $48 |
| 2026-06-26 | 66,420 | $4.86 | $323K |
| 2026-06-22 | 1,300 | $8.10 | $11K |
| 2026-06-17 | 141 | $7.43 | $1K |
| 2026-06-15 | 796 | $7.40 | $6K |
| 2026-05-21 | 1,235 | $4.09 | $5K |
Insider trades
SEC Form 4, newest first. JSONInsiders at HYLN reported 1 open-market buy worth $170K in the last 90 days and no open-market sells. Latest filing: Standley Greg (Chief Accounting Officer.) on 2026-09-30.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | Standley Greg | Chief Accounting Officer. | Conversion | 18K | $0.00 | $0 | 288K |
| 2026-09-30 | Standley Greg | Chief Accounting Officer. | Conversion | 17K | $0.00 | $0 | 270K |
| 2026-09-30 | Cubbage Vincent T. | Director | Gift | 6K | $0.00 | $0 | 1.1M |
| 2026-09-30 | Healy Thomas J. | Chief Executive Officer | Conversion | 222K | $0.00 | $0 | 33.2M |
| 2026-09-30 | Healy Thomas J. | Chief Executive Officer | Conversion | 202K | $0.00 | $0 | 33.0M |
| 2026-09-30 | Panzer Jon | Chief Financial Officer | Conversion | 75K | $0.00 | $0 | 1.1M |
| 2026-09-30 | Panzer Jon | Chief Financial Officer | Conversion | 59K | $0.00 | $0 | 995K |
| 2026-09-30 | MOOK JOSHUA T. | Chief Technology Officer | Conversion | 71K | $0.00 | $0 | 1.2M |
| 2026-09-30 | MOOK JOSHUA T. | Chief Technology Officer | Conversion | 56K | $0.00 | $0 | 1.2M |
| 2026-09-30 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Conversion | 71K | $0.00 | $0 | 874K |
| 2026-09-30 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Conversion | 52K | $0.00 | $0 | 802K |
| 2026-09-21 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Gift | 50K | $0.00 | $0 | 750K |
| 2026-08-27 | Cubbage Vincent T. | Director | Buy | 50K | $3.40 | $170K | 1.1M |
| 2026-08-21 | Healy Thomas J. | Chief Executive Officer | Other transaction | 30K | $3.33 | $99K | 32.8M |
| 2026-08-21 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Other transaction | 7K | $3.37 | $22K | 594K |
| 2026-08-21 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Other transaction | 12K | $3.33 | $40K | 800K |
| 2026-08-21 | MOOK JOSHUA T. | Chief Technology Officer | Other transaction | 11K | $3.33 | $36K | 1.1M |
| 2026-08-21 | Panzer Jon | Chief Financial Officer | Other transaction | 14K | $3.32 | $45K | 935K |
| 2026-08-19 | Standley Greg | Chief Accounting Officer. | Other transaction | 4K | $3.73 | $14K | 254K |
| 2026-06-26 | Healy Thomas J. | Chief Executive Officer | Gift | 2.5M | $0.00 | $0 | 32.8M |
| 2026-05-26 | Cubbage Vincent T. | Director | Gift | 12K | $0.00 | $0 | 1.1M |
| 2026-05-20 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Other transaction | 2K | $3.92 | $7K | 601K |
| 2026-05-20 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Other transaction | 3K | $3.92 | $12K | 812K |
| 2026-05-20 | MOOK JOSHUA T. | Chief Technology Officer | Other transaction | 2K | $3.92 | $8K | 1.1M |
| 2026-05-20 | Panzer Jon | Chief Financial Officer | Other transaction | 2K | $3.92 | $8K | 949K |
| 2026-05-20 | Healy Thomas J. | Chief Executive Officer | Other transaction | 11K | $3.98 | $45K | 35.3M |
| 2026-05-19 | Standley Greg | Chief Accounting Officer. | Other transaction | 4K | $4.05 | $16K | 257K |
| 2026-05-19 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Other transaction | 5K | $4.06 | $19K | 602K |
| 2026-05-19 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Other transaction | 9K | $4.06 | $35K | 815K |
| 2026-05-19 | MOOK JOSHUA T. | Chief Technology Officer | Other transaction | 5K | $4.06 | $19K | 1.1M |
| 2026-05-19 | Panzer Jon | Chief Financial Officer | Other transaction | 6K | $4.06 | $25K | 951K |
| 2026-05-19 | Healy Thomas J. | Chief Executive Officer | Other transaction | 17K | $4.08 | $68K | 35.3M |
| 2026-03-10 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Other transaction | 130 | $2.02 | $263 | 607K |
| 2026-03-03 | Standley Greg | Chief Accounting Officer. | Other transaction | 7K | $2.04 | $15K | 261K |
| 2026-03-03 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Other transaction | 13K | $2.04 | $26K | 607K |
| 2026-03-03 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Other transaction | 25K | $2.04 | $51K | 823K |
| 2026-03-03 | MOOK JOSHUA T. | Chief Technology Officer | Other transaction | 15K | $2.04 | $30K | 1.1M |
| 2026-03-03 | LANTZ CHERI | Chief Strategy Officer | Other transaction | 17K | $2.04 | $34K | 730K |
| 2026-03-03 | Panzer Jon | Chief Financial Officer | Other transaction | 17K | $2.04 | $34K | 957K |
| 2026-03-03 | Healy Thomas J. | Chief Executive Officer | Other transaction | 58K | $2.05 | $119K | 35.3M |
| 2026-02-11 | Trent Melanie Montague | Director | Grant | 61K | $2.05 | $125K | 219K |
| 2026-02-11 | KNIGHT ROBERT M JR | Director | Grant | 61K | $2.05 | $125K | 375K |
| 2026-02-11 | Standley Greg | Chief Accounting Officer. | Grant | 47K | $2.05 | $96K | 269K |
| 2026-02-11 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Grant | 80K | $2.05 | $165K | 620K |
| 2026-02-11 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Grant | 95K | $2.05 | $195K | 848K |
| 2026-02-11 | MOOK JOSHUA T. | Chief Technology Officer | Grant | 95K | $2.05 | $195K | 1.1M |
| 2026-02-11 | Panzer Jon | Chief Financial Officer | Grant | 101K | $2.05 | $206K | 974K |
| 2026-02-11 | Healy Thomas J. | Chief Executive Officer | Grant | 296K | $2.05 | $608K | 35.4M |
| 2026-02-11 | Gustanski Mary | Director | Grant | 61K | $2.05 | $125K | 256K |
| 2026-02-11 | Freeland Richard Joseph | Director | Grant | 61K | $2.05 | $125K | 284K |
| 2026-02-11 | Cubbage Vincent T. | Director | Grant | 61K | $2.05 | $125K | 1.1M |
| 2026-02-11 | Craig Jeffrey A | Director | Grant | 61K | $2.05 | $125K | 403K |
| 2026-02-11 | Boehm Rodger L | Director | Grant | 61K | $2.05 | $124K | 218K |
| 2025-12-17 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Other transaction | 2K | $1.78 | $4K | 753K |
| 2025-12-12 | Standley Greg | Chief Accounting Officer. | Other transaction | 4K | $1.94 | $8K | 222K |
| 2025-12-12 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Other transaction | 13K | $1.94 | $25K | 540K |
| 2025-12-12 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Other transaction | 23K | $1.94 | $45K | 756K |
| 2025-12-12 | MOOK JOSHUA T. | Chief Technology Officer | Other transaction | 13K | $1.94 | $25K | 1.0M |
| 2025-12-12 | LANTZ CHERI | Chief Strategy Officer | Other transaction | 16K | $1.94 | $30K | 747K |
| 2025-12-12 | Panzer Jon | Chief Financial Officer | Other transaction | 16K | $1.94 | $32K | 873K |
| 2025-12-12 | Healy Thomas J. | Chief Executive Officer | Other transaction | 135K | $1.94 | $262K | 35.1M |
| 2025-12-03 | LANTZ CHERI | Chief Strategy Officer | Other transaction | 3K | $1.86 | $5K | 763K |
| 2025-11-28 | Panzer Jon | Chief Financial Officer | Tax withholding | 2K | $1.88 | $5K | 890K |
| 2025-11-27 | Standley Greg | Chief Accounting Officer. | Tax withholding | 519 | $1.85 | $960 | 226K |
| 2025-11-27 | MOOK JOSHUA T. | Chief Technology Officer | Tax withholding | 1K | $1.85 | $3K | 1.0M |
| 2025-11-26 | MOOK JOSHUA T. | Chief Technology Officer | Grant | 541K | $1.85 | $1.0M | 1.0M |
| 2025-11-17 | MOOK JOSHUA T. | Chief Technology Officer | Other transaction | 9K | $1.66 | $15K | 508K |
| 2025-11-17 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Other transaction | 31K | $1.66 | $52K | 779K |
| 2025-11-17 | LANTZ CHERI | Chief Strategy Officer | Other transaction | 25K | $1.66 | $42K | 765K |
| 2025-11-17 | Healy Thomas J. | Chief Executive Officer | Other transaction | 160K | $1.66 | $265K | 35.2M |
| 2025-11-14 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Tax withholding | 7K | $1.70 | $13K | 552K |
| 2025-11-14 | MOOK JOSHUA T. | Chief Technology Officer | Tax withholding | 7K | $1.70 | $13K | 517K |
| 2025-11-14 | Panzer Jon | Chief Financial Officer | Tax withholding | 9K | $1.70 | $16K | 892K |
| 2025-11-14 | Standley Greg | Chief Accounting Officer. | Tax withholding | 2K | $1.70 | $4K | 226K |
| 2025-11-13 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Tax withholding | 4K | $1.68 | $7K | 560K |
| 2025-11-13 | MOOK JOSHUA T. | Chief Technology Officer | Tax withholding | 4K | $1.68 | $7K | 524K |
| 2025-11-13 | Panzer Jon | Chief Financial Officer | Tax withholding | 5K | $1.68 | $9K | 902K |
| 2025-11-12 | Standley Greg | Chief Accounting Officer. | Tax withholding | 1K | $1.90 | $2K | 229K |
| 2025-11-08 | Panzer Jon | Chief Financial Officer | Tax withholding | 2K | $2.12 | $4K | 907K |
| 2025-11-06 | Standley Greg | Chief Accounting Officer. | Tax withholding | 2K | $2.08 | $3K | 230K |
| 2025-09-02 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Tax withholding | 3K | $1.60 | $5K | 798K |
| 2025-09-02 | LANTZ CHERI | Chief Strategy Officer | Tax withholding | 3K | $1.60 | $4K | 780K |
| 2025-08-28 | Panzer Jon | Chief Financial Officer | Tax withholding | 2K | $1.72 | $4K | 909K |
| 2025-08-27 | Standley Greg | Chief Accounting Officer. | Tax withholding | 519 | $1.69 | $877 | 232K |
| 2025-08-27 | MOOK JOSHUA T. | Chief Technology Officer | Tax withholding | 1K | $1.69 | $2K | 520K |
| 2025-08-25 | MOOK JOSHUA T. | Chief Technology Officer | Tax withholding | 0 | $0.00 | $0 | 529K |
| 2025-08-25 | Healy Thomas J. | Chief Executive Officer | Tax withholding | 0 | $0.00 | $0 | 35.4M |
| 2025-08-25 | LANTZ CHERI | Chief Strategy Officer | Tax withholding | 0 | $0.00 | $0 | 793K |
| 2025-08-25 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Tax withholding | 0 | $0.00 | $0 | 814K |
| 2025-08-25 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Tax withholding | 13K | $1.77 | $22K | 801K |
| 2025-08-25 | MOOK JOSHUA T. | Chief Technology Officer | Tax withholding | 8K | $1.77 | $15K | 521K |
| 2025-08-25 | LANTZ CHERI | Chief Strategy Officer | Tax withholding | 10K | $1.77 | $18K | 783K |
| 2025-08-25 | Healy Thomas J. | Chief Executive Officer | Tax withholding | 62K | $1.77 | $109K | 35.3M |
| 2025-08-21 | Freeland Richard Joseph | Director | Buy | 65K | $1.57 | $102K | 223K |
| 2025-08-13 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Tax withholding | 4K | $1.66 | $7K | 564K |
| 2025-08-13 | Panzer Jon | Chief Financial Officer | Tax withholding | 5K | $1.66 | $9K | 911K |
| 2025-08-12 | Standley Greg | Chief Accounting Officer. | Tax withholding | 3K | $1.69 | $5K | 232K |
| 2025-08-12 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Tax withholding | 5K | $1.69 | $8K | 568K |
| 2025-08-12 | Panzer Jon | Chief Financial Officer | Tax withholding | 6K | $1.69 | $11K | 916K |
| 2025-08-08 | Panzer Jon | Chief Financial Officer | Tax withholding | 741 | $1.53 | $1K | 922K |
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. JSON20 Form 144 notices on file for HYLN worth $2.0M at the prices reported; 5 in the last 90 days worth $423K. Latest: Jose Oxholm filed on 2026-08-21 to sell 15,000 shares ($50K) from 2026-08-21.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-08-21 | Jose OxholmOfficer | 15K | $50K | 0.008% | 2026-08-21 | UBS Financial Services Inc |
| 2026-08-21 | Joshua MookOfficer | 15K | $50K | 0.008% | 2026-08-21 | UBS Financial Services Inc |
| 2026-08-21 | Jon PanzerOfficer | 30K | $100K | 0.017% | 2026-08-21 | UBS Financial Services Inc |
| 2026-08-21 | Govindaraj RamasamyOfficer | 7K | $23K | 0.004% | 2026-08-21 | UBS Financial Services Inc |
| 2026-08-21 | Thomas HealyOfficer, Director | 60K | $200K | 0.034% | 2026-08-21 | UBS Financial Services Inc |
| 2026-05-19 | Joshua MookOfficer | 15K | $61K | 0.008% | 2026-05-19 | UBS Financial Services Inc |
| 2026-05-19 | Jon PanzerOfficer | 15K | $61K | 0.008% | 2026-05-19 | UBS Financial Services Inc |
| 2026-05-19 | Govindaraj RamasamyOfficer | 15K | $61K | 0.008% | 2026-05-19 | UBS Financial Services Inc |
| 2026-05-19 | Jose OxholmOfficer | 15K | $61K | 0.008% | 2026-05-19 | UBS Financial Services Inc |
| 2026-05-19 | Thomas HealyOfficer | 30K | $125K | 0.017% | 2026-05-19 | UBS Financial Services Inc |
| 2025-12-12 | Govindaraj RamasamyOfficer | 30K | $59K | 0.017% | 2025-12-12 | UBS Financial Services Inc |
| 2025-12-12 | Jon PanzerOfficer | 40K | $78K | 0.023% | 2025-12-12 | UBS Financial Services Inc |
| 2025-12-12 | Jose OxholmOfficer | 60K | $117K | 3.421% | 2025-12-12 | UBS Financial Services Inc |
| 2025-12-12 | Joshua MookOfficer | 32K | $62K | 0.018% | 2025-12-12 | UBS Financial Services Inc |
| 2025-12-12 | Thomas HealyOfficer | 220K | $432K | 0.125% | 2025-12-12 | UBS Financial Services Inc |
| 2025-12-03 | Cheri LantzOfficer | 50K | $100K | 0.028% | 2025-12-03 | UBS Financial Services Inc |
| 2025-11-17 | Jose OxholmOfficer | 31K | $52K | 0.018% | 2025-11-17 | UBS Financial Services Inc |
| 2025-11-17 | Joshua MookOfficer | 9K | $15K | 0.005% | 2025-11-17 | UBS Financial Services Inc |
| 2025-11-17 | Cheri LantzOfficer | 25K | $42K | 0.014% | 2025-11-17 | UBS Financial Services Inc |
| 2025-11-17 | Thomas HealyOfficer | 160K | $265K | 0.091% | 2025-11-17 | UBS Financial Services Inc |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON1 holder reports 5% or more of HYLN in its latest filing, on Schedule 13G (passive). The holder is BlackRock, Inc. at 5.7% of the class (10,119,991 shares), filed 2026-07-28 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-07-28 | 13G | BlackRock, Inc.parent holding company | 10.1M | 5.7% | 2026-06-30 |
13F holders
Tracked managers holding HYLN at their latest 13F. JSON7 of the 30 tracked managers held HYLN at their latest 13F, $36.1M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $20.3M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 6 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| D. E. Shaw & Co. | 2026-06-30 | 3.9M | $20.3M | 0.01% | +2.4M |
| Millennium Management | 2026-06-30 | 1.9M | $9.9M | 0.00% | +510K |
| Two Sigma Investments | 2026-06-30 | 420K | $2.2M | 0.00% | +288K |
| Renaissance Technologies | 2026-06-30 | 293K | $1.5M | 0.00% | -26K |
| Citadel Advisors | 2026-06-30 | 196K | $1.0M | 0.00% | +6K |
| Point72 Asset Management | 2026-06-30 | 175K | $914K | 0.00% | new |
| AQR Capital Management | 2026-06-30 | 41K | $212K | 0.00% | +9K |
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) Hyliion Holdings reported revenue of $4.9M, up 226.3% from the same quarter a year earlier, and net loss of $13.9M (-0.08 diluted EPS). In FY 2025 it generated -$46.5M of operating cash flow.
- Cash
- $13.2M
- Equity
- $169.5M
- Total assets
- $179.6M
- Shares outstanding
- 178,597,218
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 FY 2026 | 2026-06-30 | $4.9M | -$13.9M | -281.7% | -0.08 |
| Q1 FY 2026 | 2026-03-31 | $2.8M | -$11.7M | -414.4% | -0.07 |
| Q4 FY 2025derived | 2025-12-31 | $712K | n/a | n/a | n/a |
| Q3 FY 2025 | 2025-09-30 | $759K | -$13.3M | -1757.2% | -0.08 |
| Q2 FY 2025 | 2025-06-30 | $1.5M | -$13.4M | -885.4% | -0.08 |
| Q1 FY 2025 | 2025-03-31 | $489K | -$17.3M | -3528.4% | -0.10 |
| Q4 FY 2024derived | 2024-12-31 | $1.5M | n/a | n/a | n/a |
| Q3 FY 2024 | 2024-09-30 | $0 | -$11.2M | n/a | -0.06 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | $3.5M | -$57.2M | -$46.5M | $23.7M | $0 | n/a |
| FY 2024 | 2024-12-31 | $1.5M | -$52.0M | -$56.7M | $16.5M | $14.0M | n/a |
| FY 2023 | 2023-12-31 | $672K | -$123.5M | -$117.0M | $7.4M | $33K | n/a |
| FY 2022 | 2022-12-31 | $2.1M | -$153.4M | -$116.9M | $2.9M | $0 | n/a |
| FY 2021 | 2021-12-31 | $200K | -$96.0M | -$80.5M | $2.4M | n/a | n/a |
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 2026-08-03 from the cover page.
What this page is
Hyliion Holdings 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 Hyliion Holdings (HYLN), SEC CIK 1759631, listed on NYSE, classified by the SEC as truck & bus bodies. 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 2026-11-03.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-06.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 2026-08-21.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 2026-07-28.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 2026-08-11.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 2026-09-30.JSON and CSV
- Company record
- EDGAR filing index for CIK 1759631Ticker, 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.
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Datasets
Frequently Asked Questions
How much of HYLN is sold short?
14,990,996 shares were held short at the 2026-10-15 settlement, 9.5 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 HYLN's daily short volume?
On 2026-11-03, 350,900 of the 649,035 HYLN shares reported to FINRA were sold short, 54.1% of the day's reported volume. Short volume is a flow for one day, not a position.
Does HYLN have fails to deliver?
The SEC's latest file shows 82 HYLN shares failed to deliver at settlement 2026-10-06. Fails are reported per settlement date and published twice a month with a lag.
Are HYLN insiders buying or selling?
Insiders at HYLN reported 1 open-market buy worth $170K in the last 90 days and no open-market sells. Latest filing: Standley Greg (Chief Accounting Officer.) on 2026-09-30.
Have HYLN insiders filed to sell?
20 Form 144 notices on file for HYLN worth $2.0M at the prices reported; 5 in the last 90 days worth $423K. Latest: Jose Oxholm filed on 2026-08-21 to sell 15,000 shares ($50K) from 2026-08-21.
Who owns 5% or more of HYLN?
1 holder reports 5% or more of HYLN in its latest filing, on Schedule 13G (passive). The holder is BlackRock, Inc. at 5.7% of the class (10,119,991 shares), filed 2026-07-28 for an event on 2026-06-30.
What did HYLN report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) Hyliion Holdings reported revenue of $4.9M, up 226.3% from the same quarter a year earlier, and net loss of $13.9M (-0.08 diluted EPS). In FY 2025 it generated -$46.5M of operating cash flow.
Which tracked 13F managers own HYLN?
7 of the 30 tracked 13F managers held HYLN shares at their latest filing, $36.1M in all. The largest: D. E. Shaw & Co. (3.9M shares, $20.3M), Izzy Englander's Millennium Management (1.9M shares, $9.9M), Two Sigma Investments (420K shares, $2.2M), Renaissance Technologies (293K shares, $1.5M), Ken Griffin's Citadel Advisors (196K shares, $1.0M), Steve Cohen's Point72 Asset Management (175K shares, $914K). The table above lists all 7.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.