Jacob Maas
First SEC filing: Oct. 28, 2015 · Latest: Jan. 29, 2025
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 28, 2026 | GHC | A | 1,000 | · | · | 7,657 Direct | +15.02% | Acquired | (price as of 2026-10-02) |
| Aug. 28, 2026 | GHC | F | 501 | $1159.23 | $580,774 | 7,156 Direct | -6.54% | Disposed | -0.8% (price as of 2026-10-02) |
| Jan. 16, 2026 | GHC | A | 1,000 | · | · | 7,034 Direct | +16.57% | Acquired | (price as of 2026-10-02) |
| Jan. 16, 2026 | GHC | F | 377 | $1150.50 | $433,738 | 6,657 Direct | -5.36% | Disposed | -0.1% (price as of 2026-10-02) |
| Oct. 20, 2025 | GHC | A | 1,000 | · | · | 6,535 Direct | +18.07% | Acquired | (price as of 2026-10-02) |
| Oct. 20, 2025 | GHC | F | 501 | $987.72 | $494,848 | 6,034 Direct | -7.67% | Disposed | 16.4% (price as of 2026-10-02) |
| Aug. 19, 2025 | GHC | M | 2,000 | $804.80 | $1,609,600 | 7,287 Direct | +37.83% | Acquired | 42.8% (price as of 2026-10-02) |
| Aug. 19, 2025 | GHC | F | 1,752 | $1071.80 | $1,877,794 | 5,535 Direct | -24.04% | Disposed | 7.3% (price as of 2026-10-02) |
| Aug. 19, 2025 | GHC | M | 2,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Jan. 27, 2025 | GHC | F | 438 | $918.26 | $402,198 | 5,287 Direct | -7.65% | Disposed | 25.2% (price as of 2026-10-02) |
| Jan. 27, 2025 | GHC | A | 1,000 | · | · | 5,725 Direct | +21.16% | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2025 | GHC | F | 257 | $871.87 | $224,071 | 4,725 Direct | -5.16% | Disposed | 31.9% (price as of 2026-10-02) |
| Jan. 2, 2025 | GHC | A | 430 | · | · | 4,982 Direct | +9.45% | Acquired | (price as of 2026-10-02) |
| Nov. 5, 2024 | GHC | A | 1,000 | · | · | 4,552 Direct | +28.15% | Acquired | (price as of 2026-10-02) |
| Jan. 3, 2023 | GHC | A | 616 | · | · | 3,552 Direct | +20.98% | Acquired | (price as of 2026-10-02) |
| Jan. 19, 2022 | GHC | A | 1,000 | · | · | 2,936 Direct | +51.65% | Acquired | (price as of 2026-10-02) |
| Jan. 19, 2022 | GHC | A | 1,000 | · | · | 2,936 Direct | +51.65% | Acquired | (price as of 2026-10-02) |
| Jan. 4, 2021 | GHC | A | 700 | · | · | 1,936 Direct | +56.63% | Acquired | (price as of 2026-10-02) |
| Feb. 27, 2020 | GHC | P | 210 | $473.01 | $99,332 | 1,236 Direct | +20.47% | Acquired | 143.0% (price as of 2026-10-02) |
| Jan. 2, 2019 | GHC | A | 600 | · | · | 1,026 Direct | +140.85% | Acquired | (price as of 2026-10-02) |
| Jan. 3, 2017 | GHC | A | 400 | · | · | 426 Direct | +1538.46% | Acquired | (price as of 2026-10-02) |
| Oct. 26, 2015 | GHC | A | 2,000 | · | · | 2,000 Direct | · | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| Aug. 19, 2025 | GHC | Employee Stock Option (right to buy) | Class B Common Stock | $804.80 | Oct. 26, 2025 | 2,000 | Disposed |
| Oct. 26, 2015 | GHC | Employee Stock Option | Class B Common Stock | $804.80 | Oct. 26, 2025 | 2,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 28, 2015 | GHC | Class B Common Stock | 26 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $750,000 | · | · | · | $426,324 | $48,084 | · | $1,606,843 |
| 2024 | $750,000 | · | · | · | · | $46,406 | · | $1,802,885 |
| 2023 | $700,000 | · | · | · | $328,056 | $32,847 | · | $1,448,045 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.