Insider · CIK 0001430708

Shackelton Christopher S

CIK 0001430708 Name as filed on the most recent filing

Filed as Shackelton Christopher S (217)

484 transaction lines · from 217 filings · filed 2008-09-22 to 2026-06-10 The span is the filing dates this catalog holds, not the entity's full filing history. Absence here is not evidence of absence at the SEC.

How this page attributes a trade

A line appears here when the filing that carries it names this CIK as a reporting owner, not only when the parser picked this CIK as the line's primary owner. That is why a joint filing appears on both owners' pages rather than vanishing from the second one. The catalog never merges two CIKs into one person and never splits one CIK into two: identity here is the SEC's own identifier and nothing else.

01

Issuers this insider has filed against

Ordered by last-seen filing date, newest first. Roles are as filed on the Form 4 and are not normalised.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-22 05:23 UTC.

No issuer is recorded

The catalog holds no filing linking this CIK to an issuer.

02

Transactions

Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.

21 transactions · Newest transaction date first, id breaking the tie.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-22 05:23 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2026-06-08 S, Open-market sale Universal Technical Institute IncUTI 124,200,000, disposed Open Form 4 filing 0001193125-26-266156
2026-03-17 P, Open-market purchase Sonos IncSONO 1,696,250, acquired Open Form 4 filing 0001193125-26-111655
2026-03-16 P, Open-market purchase Sonos IncSONO 184,440, acquired Open Form 4 filing 0001193125-26-111655
2026-03-13 P, Open-market purchase Sonos IncSONO 1,188,000, acquired Open Form 4 filing 0001193125-26-111655
2026-03-11 P, Open-market purchase Sonos IncSONO 2,559,600, acquired Open Form 4 filing 0001193125-26-102792
2026-03-10 P, Open-market purchase Sonos IncSONO 4,540,800, acquired Open Form 4 filing 0001193125-26-102792
2026-03-09 P, Open-market purchase Sonos IncSONO 5,859,000, acquired Open Form 4 filing 0001193125-26-102792
2026-02-25 P, Open-market purchase Sonos IncSONO 1,799,805, acquired Open Form 4 filing 0001193125-26-072787
2026-02-24 P, Open-market purchase Sonos IncSONO 1,976,231, acquired Open Form 4 filing 0001193125-26-072787
2026-02-23 P, Open-market purchase Sonos IncSONO 5,364,000, acquired Open Form 4 filing 0001193125-26-072787
2026-02-17 P, Open-market purchase Sonos IncSONO 4,521,100, acquired Open Form 4 filing 0001193125-26-055615
2026-02-13 P, Open-market purchase Sonos IncSONO 4,048,485, acquired Open Form 4 filing 0001193125-26-055615
2026-02-12 P, Open-market purchase Sonos IncSONO 1,611,000, acquired Open Form 4 filing 0001193125-26-055615
2026-02-06 P, Open-market purchase Sonos IncSONO 442,328, acquired Open Form 4 filing 0001193125-26-041578
2026-02-05 P, Open-market purchase Sonos IncSONO 3,445,824, acquired Open Form 4 filing 0001193125-26-041578
2026-02-04 P, Open-market purchase Sonos IncSONO 7,668,145, acquired Open Form 4 filing 0001193125-26-041578
2025-12-22 P, Open-market purchase MasterCraft Boat Holdings, Inc.MCFT 491,500, acquired Open Form 4 filing 0001193125-25-329175
2025-12-19 P, Open-market purchase MasterCraft Boat Holdings, Inc.MCFT 1,504,040, acquired Open Form 4 filing 0001193125-25-329175
2025-12-18 P, Open-market purchase MasterCraft Boat Holdings, Inc.MCFT 653,827, acquired Open Form 4 filing 0001193125-25-329175
2025-12-05 P, Open-market purchase Universal Technical Institute IncUTI 4,868,645, acquired Open Form 4 filing 0001193125-25-310079
2025-12-03 P, Open-market purchase Universal Technical Institute IncUTI 2 lines 8,814,053, acquired Open Form 4 filing 0001193125-25-310079
2025-12-02 P, Open-market purchase Universal Technical Institute IncUTI 11,395,288, acquired Open Form 4 filing 0001193125-25-306717
2025-12-01 P, Open-market purchase Universal Technical Institute IncUTI 2 lines 5,735,464, acquired Open Form 4 filing 0001193125-25-306717
2025-08-14 P, Open-market purchase Owens & Minor Inc/VA/OMI 2,617,044, acquired Open Form 4 filing 0000950170-25-109150
2025-08-13 P, Open-market purchase Owens & Minor Inc/VA/OMI 1,774,500, acquired Open Form 4 filing 0000950170-25-109150
2025-08-12 P, Open-market purchase Owens & Minor Inc/VA/OMI 3,708,000, acquired Open Form 4 filing 0000950170-25-109150
2025-08-08 P, Open-market purchase Sonos IncSONO 616,550, acquired Open Form 4 filing 0000950170-25-106774
2025-08-07 P, Open-market purchase Sonos IncSONO 1,351,778, acquired Open Form 4 filing 0000950170-25-106774
2025-08-05 P, Open-market purchase Sonos IncSONO 1,732,800, acquired Open Form 4 filing 0000950170-25-103308
2025-08-04 P, Open-market purchase Sonos IncSONO 28,145, acquired Open Form 4 filing 0000950170-25-103308
2025-08-01 P, Open-market purchase Sonos IncSONO 830,400, acquired Open Form 4 filing 0000950170-25-103308
2025-07-29 P, Open-market purchase Sonos IncSONO 7,593,750, acquired Open Form 4 filing 0000950170-25-099831
2025-07-28 P, Open-market purchase Sonos IncSONO 4,000,500, acquired Open Form 4 filing 0000950170-25-099831
2025-07-25 P, Open-market purchase Sonos IncSONO 3,209,633, acquired Open Form 4 filing 0000950170-25-099831
2025-07-16 S, Open-market sale GMS Inc.GMS 6,046,587, disposed Open Form 4 filing 0000950170-25-096394
2025-07-15 S, Open-market sale GMS Inc.GMS 11,506,773, disposed Open Form 4 filing 0000950170-25-096394
2025-07-14 S, Open-market sale GMS Inc.GMS 19,713,587, disposed Open Form 4 filing 0000950170-25-096394
2025-06-24 P, Open-market purchase Sonos IncSONO 1,157,025, acquired Open Form 4 filing 0000950170-25-089678
2025-06-23 P, Open-market purchase Sonos IncSONO 727,212, acquired Open Form 4 filing 0000950170-25-089678
2025-06-20 P, Open-market purchase Sonos IncSONO 2,360,960, acquired Open Form 4 filing 0000950170-25-089678
2025-06-16 P, Open-market purchase Sonos IncSONO 1,350,093, acquired Open Form 4 filing 0000950170-25-086998
2025-06-13 P, Open-market purchase Sonos IncSONO 2,780,400, acquired Open Form 4 filing 0000950170-25-086998
2025-06-12 P, Open-market purchase Sonos IncSONO 2,450,400, acquired Open Form 4 filing 0000950170-25-086998
2025-05-27 S, Open-market sale Universal Technical Institute IncUTI 17,500,000, disposed Open Form 4 filing 0000950170-25-079021
2025-05-12 S, Open-market sale Universal Technical Institute IncUTI 63,576,630, disposed Open Form 4 filing 0000950170-25-071576
2025-04-10 P, Open-market purchase Owens & Minor Inc/VA/OMI 575,200, acquired Open Form 4 filing 0000950170-25-053005
2025-04-09 P, Open-market purchase Owens & Minor Inc/VA/OMI 1,662,750, acquired Open Form 4 filing 0000950170-25-053005
2025-04-08 P, Open-market purchase Owens & Minor Inc/VA/OMI 835,800, acquired Open Form 4 filing 0000950170-25-053005

This column is intentionally blank

No transaction line is stored for this reporting owner, though the catalog holds filings naming them. That happens when the filings report only holdings or only positions the store does not carry, and when a parse failed; each filing page states its own parse status.

Codes on this page
S, Open-market sale
Open-market sale
P, Open-market purchase
Open-market purchase

Every value is as reported on the Form 4, totalled to the dollar. Share counts, the price per share and the full list of reporting owners are on each filing's own page, which every row here opens. A row marked n lines adds up that many filed lines of one filing, on one day, on one side of the market; a filing whose lines fall across two pages is left as its lines on both, so no total here is ever short.

What this insider's stored lines contain

Exact counts over every stored line for this entity. This is a statement of composition, not a filter: the only filter this page offers is the open-market one above, because that is the only one an index serves today.

  • Open-market purchase 20
  • Open-market sale 1
  • Option exercise 0
  • Grant or award 0
  • Tax withholding 0
  • Disposition to the issuer 0
  • In-the-money option exercise 0

How to cite this page

ebomi catalog. Shackelton Christopher S, insider transactions. Retrieved 2026-08-22 from https://ebomi.com/insider/0001430708

Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6

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