John Fichthorn
CIK 1411509 · last filed 2026-10-05
John Fichthorn is a corporate insider who has filed 39 SEC Form 4 insider transactions across 6 companies since 2009. The most recent filing, for QMCO, was dated Oct 5, 2026. Across all open-market trades the lifetime net is −$18.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $221.6M across reported positions. 16 SEC filings were submitted jointly with DIALECTIC CAPITAL MANAGEMENT, LLC.
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
IMMR price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
17 STATE STREET, SUITE 3930
NEW YORK, NY 10004
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| QMCO | Director | 14,145,516 | $15.34 | $216.99M | $351.6K | 9 | 2026-10-05 |
| Benefytt Technologies, Inc. (BFYT) Delisted | Director | 17,809 | — | — | $0 | 1 | 2020-05-14 |
| Benefytt Technologies, Inc. (HIIQ) Delisted | Director | 187,121 | — | — | -$621.5K | 5 | 2019-05-16 |
| IMMR | Director | 661,691 | $6.94 | $4.59M | -$18.14M | 11 | 2014-03-14 |
| CALIFORNIA MICRO DEVICES CORP (CAMD) Delisted | Director | — | — | — | $0 | 2 | 2009-12-15 |
| LEADIS TECHNOLOGY INC (LDIS) Delisted | 10%+ Owner | 5,258,475 | — | — | $210.4K | 1 | 2009-10-02 |
Holdings By Holder
| Symbol | Holder | Shares | Share of Total | Reported |
|---|---|---|---|---|
| QMCO | Direct | 40,896 | 0.3% | 2026-10-05 |
| Dialectic Technology SPV LLC by Dialectic Technology SPV LLC |
14,104,620 | 99.7% | 2026-10-05 | |
| Total | 14,145,516 | |||
| No longer reported | ||||
| By Lightcurve Capital LLC | 1,000 | — | last 2020-12-18 | |
| HIIQ | Direct | 14,121 | 7.5% | 2019-05-16 |
| Dialectic Antithesis Partners Held by BRC Partners Opportunity Fund, LP |
173,000 | 92.5% | 2019-05-16 | |
| Total | 187,121 | |||
| No longer reported | ||||
| Dialectic Antithesis Partners Held by Dialectic Antithesis Partners, LP |
109,362 | — | last 2018-06-18 | |
| IMMR | Direct | 24,750 | 3.7% | 2014-03-14 |
| Dialectic entities Held Directly by Dialectic Offshore, Ltd. |
433,619 | 65.5% | 2014-03-14 | |
| Dialectic entities Held Directly by Dialectic Capital Partners, LP |
173,096 | 26.2% | 2014-03-14 | |
| Dialectic entities Held Directly by Dialectic Antithesis Offshore, Ltd. |
30,226 | 4.6% | 2014-03-14 | |
| Total | 661,691 | |||
| No longer reported | ||||
| Dialectic entities Held Directly by Dialectic Antithesis Partners, LP |
276,547 | — | last 2013-11-13 | |
| Dialectic entities Held Directly by Dialectic Offshore L2, Ltd. |
524,948 | — | last 2012-06-04 | |
| Dialectic entities By Dialectic Capital Management, LLC |
2,326,702 | — | last 2012-03-07 | |
| LDIS | Direct | 1,224,784 | 23.3% | 2009-10-02 |
| Dialectic Capital Management Footnote |
4,033,691 | 76.7% | 2009-10-02 | |
| Total | 5,258,475 | |||
Recent Filings
39 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-10-05 | QMCO | Grant (A) | +12,000 | $0 | EDGAR |
| 2026-06-08 | QMCO | Mixed | +14,104,620 | $73.26M | EDGAR |
| 2026-01-05 | QMCO | Grant (A) | +12,000 | $0 | EDGAR |
| 2025-12-29 | QMCO | Other (J) | — | $0 | EDGAR |
| 2025-05-05 | QMCO | Grant (A) | +4,405 | $0 | EDGAR |
| 2021-08-17 | QMCO | Buy (P) | +10,000 | $57.3K | EDGAR |
| 2021-08-16 | QMCO | Buy (P) | +30,000 | $170.6K | EDGAR |
| 2021-02-17 | — | Mixed | +879,920 | $105.7K | |
| 2021-02-02 | — | Grant (A) | +559,525 | $0 | |
| 2020-12-18 | QMCO | Buy (P) | +20,000 | $123.7K | EDGAR |
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, and an amended or cancelled notice is not listed. 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. Someone who is no longer an officer or director (or never was) files no Form 4, so for them a sale shows up only on a later notice, which lists the seller's sales from the 3 months before it. "No sale on file" means neither record shows one; a dash in Net $ means the value filed on the notice doesn't fit the stock's price (likely a typo).