ONEX CORP
CIK 937226 · last filed 2024-10-03
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$1.21M
Companies
6
Total Filings
15
Lifetime Open-Market Net
-$6.91B
Filer Profile
Reported Address
161 BAY STREETSUITE 4900
TORONTO M5J 1C4
Phone
(212) 582-2211
State of Incorporation
Ontario, Canada
Related Filers
GERALD W SCHWARTZ — 92 joint filings, latest 2026-07-14
Onex US Principals LP — 49 joint filings, latest 2025-03-31
ONEX PARTNERS LP — 43 joint filings, latest 2017-08-25
OAH Wind LLC — 30 joint filings, latest 2018-04-05
Onex Real Estate Holdings III Inc. — 21 joint filings, latest 2017-08-25
Onex American Holdings GP LLC — 17 joint filings, latest 2025-03-31
Onex American Holdings II LLC — 17 joint filings, latest 2025-03-31
ONEX PARTNERS III PV LP — 16 joint filings, latest 2026-07-14
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses.
View filings on SEC EDGAR.
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| POWERSCHOOL HOLDINGS, INC. (PWSC) Delisted | Director | 71,118,123 | $22.81 | $1.62B | -$433.01M | 1 | 2023-03-07 |
| JELD | 10%+ Owner | 591,201 | $2.05 | $1.21M | -$4.77B | 4 | 2021-03-05 |
| Emerald Holding, Inc. (EEX) Delisted | 10%+ Owner | 47,058,332 | $5.04 | $237.17M | -$1.71B | 3 | 2018-04-05 |
| GEN | 10%+ Owner | — | $31.23 | — | $0 | 4 | 2017-08-25 |
| Genesis Healthcare, Inc. (SKH) Delisted | 10%+ Owner | — | — | — | $0 | 1 | 2012-09-24 |
| Spirit AeroSystems Holdings, Inc. (SPR) Delisted | 10%+ Owner | — | $39.50 | — | $0 | 1 | 2007-05-30 |
Recent Filings · Page 2 of 2
15 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2017-06-01 | GEN | Sell (S) | — | $0 | EDGAR |
| 2017-05-03 | Emerald Holding, Inc. (EEX) Delisted | Sell (S) | −29,966,668 | -$509.43M | EDGAR |
| 2017-02-13 | JELD | Mixed | +115,435,498 | -$279.33M | EDGAR |
| 2012-09-24 | Genesis Healthcare, Inc. (SKH) Delisted | Mixed | — | $0 | EDGAR |
| 2007-05-30 | Spirit AeroSystems Holdings, Inc. (SPR) Delisted | Sell (S) | — | $0 | EDGAR |
Showing 11–15 of 15
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Page 2 of 2
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.