| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director | Director, 10% Owner
2 companies
David B Singer is Director, 10% Owner at SEER and has filed Form 4s across 2 companies. David B Singer's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $6.3M at current prices.
Historically, David B Singer's trades have earned a middling insider score of 61/100 across 4 rated trades. On a 3-month view, all 4 of the rated trades came out ahead, averaging +16.1% over three months.
The biggest single holding is SEER (~$3.3M) as Director, 10% Owner.
David B Singer has 9 Form 4 filings on record from December 2020 to May 2026, across 3 companies: Director at Infleqtion, Inc. WT (INFQ), 2026; Director at Churchill Capital Corp X/Cayman (CCCXW), 2026; Director at Seer (SEER), 2020–2021.
The 43 reported transactions were 22 open-market sales, 14 other transactions, 5 option or other derivative awards and 2 conversions.
Counted by filing, the open-market trades come to no purchases and 3 sales worth about $258.1M.
The largest open-market sale was 11,619,130 shares of INFQ at an average $15.63 on May 22, 2026, about $181.6M.
None of the 3 sales since April 2023 was marked as made under a Rule 10b5-1 trading plan.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| May 29, 2026 | INFQ Infleqtion, Inc. Wt | Director | Sell | 1,797,637 | $16.10 | $28,939,644.03 | -100% | -11.7% | - | |
| May 27, 2026 | INFQ Infleqtion, Inc. Wt | Director | Sell | 3,071,623 | $15.50 | $47,602,403.14 | -55.8% | -10.5% | - | |
| May 22, 2026 | INFQ Infleqtion, Inc. | Director | Sell | 11,619,130 | $15.63 | $181,595,286.54 | -100% | -21.0% | - |