Steven Pieper
First SEC filing: Oct. 5, 2021 · Latest: Oct. 5, 2021
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 |
|---|---|---|---|---|---|---|---|---|---|
| Oct. 1, 2026 | XERS | S 10b5-1 | 5,000 | $9.41 | $47,050 | 1,351,053 Direct | -0.37% | Disposed | -3.5% (price as of 2026-10-02) |
| Sept. 1, 2026 | XERS | S 10b5-1 | 5,000 | $8.50 | $42,500 | 1,356,053 Direct | -0.37% | Disposed | 6.8% (price as of 2026-10-02) |
| Aug. 12, 2026 | XERS | S 10b5-1 | 5,000 | $8.50 | $42,500 | 1,361,053 Direct | -0.37% | Disposed | 6.8% (price as of 2026-10-02) |
| July 7, 2026 | XERS | S 10b5-1 | 27,600 | $8.52 | $235,152 | 1,366,053 Direct | -1.98% | Disposed | 6.6% (price as of 2026-10-02) |
| July 6, 2026 | XERS | S 10b5-1 | 17,400 | $8.50 | $147,900 | 1,393,653 Direct | -1.23% | Disposed | 6.8% (price as of 2026-10-02) |
| March 5, 2026 | XERS | M | 27,891 | $4.09 | $114,074 | 1,394,904 Direct | +2.04% | Acquired | 122.0% (price as of 2026-10-02) |
| March 5, 2026 | XERS | M | 14,036 | $5.93 | $83,233 | 1,408,940 Direct | +1.01% | Acquired | 53.1% (price as of 2026-10-02) |
| March 5, 2026 | XERS | M | 27,891 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 5, 2026 | XERS | M | 14,036 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Jan. 31, 2026 | XERS | F | 111,765 | $7.36 | $822,590 | 1,460,782 Direct | -7.11% | Disposed | 23.4% (price as of 2026-10-02) |
| Jan. 31, 2026 | XERS | F | 66,450 | $7.36 | $489,072 | 1,394,332 Direct | -4.55% | Disposed | 23.4% (price as of 2026-10-02) |
| Jan. 31, 2026 | XERS | F | 27,319 | $7.36 | $201,068 | 1,367,013 Direct | -1.96% | Disposed | 23.4% (price as of 2026-10-02) |
| Jan. 30, 2026 | XERS | A | 154,986 | · | · | 1,572,547 Direct | +10.93% | Acquired | (price as of 2026-10-02) |
| Jan. 30, 2026 | XERS | A | 207,207 | · | · | 207,207 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 31, 2025 | XERS | F | 110,750 | $3.56 | $394,270 | 1,299,011 Direct | -7.86% | Disposed | 155.1% (price as of 2026-10-02) |
| Jan. 31, 2025 | XERS | F | 66,450 | $3.56 | $236,562 | 1,232,561 Direct | -5.12% | Disposed | 155.1% (price as of 2026-10-02) |
| Jan. 31, 2025 | XERS | A | 185,000 | · | · | 1,417,561 Direct | +15.01% | Acquired | (price as of 2026-10-02) |
| Jan. 31, 2025 | XERS | A | 300,000 | · | · | 300,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 3, 2025 | XERS | F | 32,059 | $3.61 | $115,733 | 1,409,761 Direct | -2.22% | Disposed | 151.5% (price as of 2026-10-02) |
| July 28, 2024 | XERS | F | 14,767 | $2.61 | $38,542 | 1,422,337 Direct | -1.03% | Disposed | 247.9% (price as of 2026-10-02) |
| Jan. 31, 2024 | XERS | F | 110,750 | $2.46 | $272,445 | 1,437,104 Direct | -7.16% | Disposed | 269.1% (price as of 2026-10-02) |
| Jan. 31, 2024 | XERS | A | 450,000 | · | · | 1,626,912 Direct | +38.24% | Acquired | (price as of 2026-10-02) |
| Jan. 29, 2024 | XERS | F | 4,379 | $2.66 | $11,648 | 1,547,854 Direct | -0.28% | Disposed | 241.4% (price as of 2026-10-02) |
| Jan. 3, 2024 | XERS | F | 23,067 | $2.24 | $51,670 | 1,552,233 Direct | -1.46% | Disposed | 305.4% (price as of 2026-10-02) |
| Nov. 20, 2023 | XERS | P | 28,000 | $1.95 | $54,600 | 1,176,912 Direct | +2.44% | Acquired | 365.6% (price as of 2026-10-02) |
| July 28, 2023 | XERS | F | 10,200 | $2.53 | $25,806 | 1,575,300 Direct | -0.64% | Disposed | 258.9% (price as of 2026-10-02) |
| Jan. 31, 2023 | XERS | F | 778 | $1.24 | $965 | 1,585,500 Direct | -0.05% | Disposed | 632.3% (price as of 2026-10-02) |
| Jan. 31, 2023 | XERS | A | 750,000 | · | · | 1,148,912 Direct | +188.01% | Acquired | (price as of 2026-10-02) |
| Jan. 29, 2023 | XERS | F | 3,590 | $1.26 | $4,523 | 1,586,278 Direct | -0.23% | Disposed | 620.6% (price as of 2026-10-02) |
| Jan. 3, 2023 | XERS | F | 23,067 | $1.12 | $25,835 | 1,589,868 Direct | -1.43% | Disposed | 710.7% (price as of 2026-10-02) |
| July 28, 2022 | XERS | F | 9,767 | $1.43 | $13,967 | 1,612,935 Direct | -0.60% | Disposed | 535.0% (price as of 2026-10-02) |
| Jan. 31, 2022 | XERS | F | 750 | $2.11 | $1,582 | 1,622,702 Direct | -0.05% | Disposed | 330.3% (price as of 2026-10-02) |
| Jan. 29, 2022 | XERS | F | 3,460 | $2.11 | $7,301 | 1,623,452 Direct | -0.21% | Disposed | 330.3% (price as of 2026-10-02) |
| Jan. 3, 2022 | XERS | A | 200,000 | · | · | 388,834 Direct | +105.91% | Acquired | (price as of 2026-10-02) |
| Nov. 10, 2021 | XERS | P | 25,000 | $2.00 | $50,000 | 183,108 Direct | +15.81% | Acquired | 354.0% (price as of 2026-10-02) |
| Oct. 5, 2021 | XERS | A | 27,891 | · | · | 27,891 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 5, 2021 | XERS | A | 12,500 | · | · | 12,500 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 5, 2021 | XERS | A | 14,036 | · | · | 14,036 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 5, 2021 | XERS | A | 2,640 | · | · | 2,640 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 5, 2021 | XERS | A | 16,843 | · | · | 16,843 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 5, 2021 | XERS | A | 134,333 | · | · | 158,108 Direct | +565.02% | Acquired | (price as of 2026-10-02) |
| Oct. 5, 2021 | XERS | A | 23,775 | · | · | 23,775 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 |
|---|---|---|---|---|---|---|---|
| March 5, 2026 | XERS | Stock Option (Right to Buy) | Common Stock | $4.09 | Dec. 10, 2030 | 27,891 | Disposed |
| March 5, 2026 | XERS | Stock Option (Right to Buy) | Common Stock | $5.93 | Jan. 31, 2028 | 14,036 | Disposed |
| Jan. 30, 2026 | XERS | Stock Option (Right to Buy) | Common Stock | $7.36 | Jan. 30, 2036 | 207,207 | Acquired |
| Jan. 31, 2025 | XERS | Stock Appreciation Right | Common Stock [F4] | $3.56 | March 2, 2027 | 300,000 | Acquired |
| Oct. 5, 2021 | XERS | Stock Option (Right to Buy) | Common Stock | $4.09 | Dec. 10, 2030 | 27,891 | Acquired |
| Oct. 5, 2021 | XERS | Stock Option (Right to Buy) | Common Stock | $6.37 | Jan. 31, 2030 | 12,500 | Acquired |
| Oct. 5, 2021 | XERS | Stock Option (Right to Buy) | Common Stock | $5.93 | Jan. 31, 2028 | 14,036 | Acquired |
| Oct. 5, 2021 | XERS | Stock Option (Right to Buy) | Common Stock | $1.55 | June 12, 2027 | 2,640 | Acquired |
| Oct. 5, 2021 | XERS | Stock Option (Right to Buy) | Common Stock | $1.55 | Feb. 4, 2027 | 16,843 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
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 | $505,393 | · | $658,600 | $419,307 | $286,558 | · | $4,232 | $1,874,090 |
| 2024 | $479,583 | · | $1,107,000 | · | $261,133 | · | $6,301 | $1,854,017 |
| 2023 | $435,985 | · | $930,000 | · | $231,957 | · | $13,200 | $1,611,142 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.