Stephen Mills
CIK 1807264 · View on SEC EDGAR ↗
Insider
First SEC filing: Sept. 3, 2024 · Latest: Sept. 3, 2024
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 15 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 1, 2026 | SIGIP | A | 1,767 | — | — | 8,311 Direct | +27.00% | Acquired | (price as of 2026-08-19) |
| Dec. 8, 2025 | MSGS | A | 727 | — | — | 5,347 Direct | +15.74% | Acquired | (price as of 2026-08-19) |
| June 5, 2025 | AMCX | A | 21,194 | — | — | 29,236 Direct | +263.54% | Acquired | (price as of 2026-08-19) |
| May 2, 2025 | SIGIP | A | 2,025 | — | — | 6,516 Direct | +45.09% | Acquired | (price as of 2026-08-19) |
| Dec. 4, 2024 | MSGS | A | 709 | — | — | 4,620 Direct | +18.13% | Acquired | (price as of 2026-08-19) |
| June 12, 2024 | AMCX | A | 8,042 | — | — | 8,042 Direct | — | Acquired | (price as of 2026-08-19) |
| May 3, 2024 | SIGIP | A | 1,141 | — | — | 4,472 Direct | +34.25% | Acquired | (price as of 2026-08-19) |
| Dec. 11, 2023 | MSGS | A | 937 | — | — | 3,911 Direct | +31.51% | Acquired | (price as of 2026-08-19) |
| May 5, 2023 | SIGIP | A | 1,065 | — | — | 3,318 Direct | +47.27% | Acquired | (price as of 2026-08-19) |
| Dec. 9, 2022 | MSGS | A | 1,027 | — | — | 2,974 Direct | +52.75% | Acquired | (price as of 2026-08-19) |
| May 6, 2022 | SIGIP | A | 1,172 | — | — | 2,237 Direct | +110.05% | Acquired | (price as of 2026-08-19) |
| Dec. 8, 2021 | MSGS | A | 884 | — | — | 1,947 Direct | +83.16% | Acquired | (price as of 2026-08-19) |
| April 30, 2021 | SIGIP | A | 1,051 | — | — | 1,051 Direct | — | Acquired | (price as of 2026-08-19) |
| Dec. 18, 2020 | MSGS | A | 626 | — | — | 1,063 Direct | +143.25% | Acquired | (price as of 2026-08-19) |
| May 19, 2020 | MSGS | A | 437 | — | — | 437 Direct | — | Acquired | (price as of 2026-08-19) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Dec. 8, 2025 | MSGS | Restricted Stock Units | Class A Common Stock (727) | — | — | 727 | Acquired |
| June 5, 2025 | AMCX | Restricted Stock Units | AMC Networks Inc. Class A Common Stock (21,194) | — | — | 21,194 | Acquired |
| Dec. 4, 2024 | MSGS | Restricted Stock Units | Class A Common Stock (709) | — | — | 709 | Acquired |
| June 12, 2024 | AMCX | Restricted Stock Units | AMC Networks Inc. Class A Common Stock (8,042) | — | — | 8,042 | Acquired |
| Dec. 11, 2023 | MSGS | Restricted Stock Units | Class A Common Stock (937) | — | — | 937 | Acquired |
| Dec. 9, 2022 | MSGS | Restricted Stock Units | Class A Common Stock (1,027) | — | — | 1,027 | Acquired |
| Dec. 8, 2021 | MSGS | Restricted Stock Units | Class A Common Stock (884) | — | — | 884 | Acquired |
| Dec. 18, 2020 | MSGS | Restricted Stock Units | Class A Common Stock (626) | — | — | 626 | Acquired |
| May 19, 2020 | MSGS | Restricted Stock Units | Class A Common Stock (437) | — | — | 437 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.