Wolfram Ridder
Insider
First SEC filing: June 5, 2026 · Latest: June 5, 2026
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 4, 2026 | MERC | A | 18,665 | · | · | 18,665 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2024 | MERC | M | 9,279 | · | · | 78,395 Direct | +13.43% | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2024 | MERC | F | 4,640 | $7.78 | $36,099 | 73,755 Direct | -5.92% | Disposed | -96.7% (price as of 2026-10-02) |
| Feb. 15, 2024 | MERC | A | 9,279 | · | · | 9,279 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2024 | MERC | M | 9,279 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 15, 2023 | MERC | M | 7,884 | · | · | 73,058 Direct | +12.10% | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2023 | MERC | F | 3,942 | $11.52 | $45,412 | 69,116 Direct | -5.40% | Disposed | -97.8% (price as of 2026-10-02) |
| Feb. 15, 2023 | MERC | A | 7,884 | · | · | 7,884 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2023 | MERC | M | 7,884 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 16, 2022 | MERC | M | 3,707 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 16, 2022 | MERC | A | 3,707 | · | · | 3,707 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2022 | MERC | F | 1,854 | $12.88 | $23,880 | 65,174 Direct | -2.77% | Disposed | -98.0% (price as of 2026-10-02) |
| Feb. 16, 2022 | MERC | M | 3,707 | · | · | 67,028 Direct | +5.85% | Acquired | (price as of 2026-10-02) |
| March 17, 2021 | MERC | S | 10,000 | $15.02 | $150,200 | 63,321 Direct | -13.64% | Disposed | -98.3% (price as of 2026-10-02) |
| Feb. 16, 2021 | MERC | M | 6,066 | · | · | 76,233 Direct | +8.65% | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2021 | MERC | F | 2,912 | $13.65 | $39,749 | 73,321 Direct | -3.82% | Disposed | -98.1% (price as of 2026-10-02) |
| Feb. 16, 2021 | MERC | A | 6,066 | · | · | 6,066 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2021 | MERC | M | 6,066 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 13, 2020 | MERC | P | 10,000 | $7.52 | $75,200 | 70,167 Direct | +16.62% | Acquired | -96.6% (price as of 2026-10-02) |
| Feb. 13, 2020 | MERC | M | 10,834 | · | · | 65,367 Direct | +19.87% | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2020 | MERC | F | 5,200 | $10.84 | $56,368 | 60,167 Direct | -7.96% | Disposed | -97.6% (price as of 2026-10-02) |
| Feb. 13, 2020 | MERC | A | 10,834 | · | · | 10,834 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2020 | MERC | M | 10,834 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2019 | MERC | M | 28,838 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2019 | MERC | A | 28,838 | · | · | 28,838 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2019 | MERC | F | 13,842 | $15.03 | $208,045 | 54,533 Direct | -20.24% | Disposed | -98.3% (price as of 2026-10-02) |
| Feb. 14, 2019 | MERC | M | 28,838 | · | · | 68,375 Direct | +72.94% | Acquired | (price as of 2026-10-02) |
| Feb. 20, 2018 | MERC | M | 9,304 | · | · | 44,003 Direct | +26.81% | Acquired | (price as of 2026-10-02) |
| Feb. 20, 2018 | MERC | F | 4,466 | $13.20 | $58,951 | 39,537 Direct | -10.15% | Disposed | -98.1% (price as of 2026-10-02) |
| Feb. 20, 2018 | MERC | A | 9,304 | · | · | 9,304 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 20, 2018 | MERC | M | 9,304 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 23, 2017 | MERC | M | 17,756 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 23, 2017 | MERC | A | 17,756 | · | · | 17,756 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 23, 2017 | MERC | F | 8,523 | $12.33 | $105,089 | 34,699 Direct | -19.72% | Disposed | -97.9% (price as of 2026-10-02) |
| Feb. 23, 2017 | MERC | M | 17,756 | · | · | 43,222 Direct | +69.72% | Acquired | (price as of 2026-10-02) |
| Jan. 5, 2016 | MERC | M | 12,185 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Jan. 5, 2016 | MERC | F | 5,849 | $8.96 | $52,407 | 25,466 Direct | -18.68% | Disposed | -97.1% (price as of 2026-10-02) |
| Jan. 5, 2016 | MERC | M | 12,185 | · | · | 31,315 Direct | +63.70% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2015 | MERC | A | 12,185 | · | · | 12,185 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 2, 2015 | MERC | M | 12,185 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 2, 2015 | MERC | F | 5,849 | $12.55 | $73,405 | 19,130 Direct | -23.42% | Disposed | -98.0% (price as of 2026-10-02) |
| Feb. 2, 2015 | MERC | M | 12,185 | · | · | 24,979 Direct | +95.24% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2014 | MERC | A | 12,185 | · | · | 12,185 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 8, 2014 | MERC | D | 20,000 | $2.97 | $59,400 | 0 Direct | -100.00% | Disposed | -91.4% (price as of 2026-10-02) |
| Dec. 5, 2014 | MERC | D | 20,000 | $5.71 | $114,200 | 0 Direct | -100.00% | Disposed | -95.5% (price as of 2026-10-02) |
| May 5, 2014 | MERC | F | 11,575 | $9.19 | $106,374 | 12,794 Direct | -47.50% | Disposed | -97.2% (price as of 2026-10-02) |
| May 5, 2014 | MERC | A | 24,369 | · | · | 24,369 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 20, 2013 | MERC | S | 1,000 | $9.95 | $9,950 | 5,979 Direct | -14.33% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 20, 2013 | MERC | S | 1,000 | $9.95 | $9,950 | 4,979 Direct | -16.73% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 20, 2013 | MERC | S | 500 | $9.96 | $4,980 | 4,479 Direct | -10.04% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 20, 2013 | MERC | S | 500 | $9.95 | $4,975 | 3,979 Direct | -11.16% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 20, 2013 | MERC | S | 1,000 | $9.95 | $9,950 | 2,979 Direct | -25.13% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 20, 2013 | MERC | S | 800 | $9.90 | $7,920 | 2,179 Direct | -26.85% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 20, 2013 | MERC | S | 200 | $9.95 | $1,990 | 1,979 Direct | -9.18% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 20, 2013 | MERC | S | 500 | $9.90 | $4,950 | 1,479 Direct | -25.27% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 20, 2013 | MERC | S | 1,479 | $9.90 | $14,642 | 0 Direct | -100.00% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 19, 2013 | MERC | S | 1,000 | $9.90 | $9,900 | 9,000 Direct | -10.00% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 19, 2013 | MERC | S | 500 | $9.87 | $4,935 | 8,500 Direct | -5.56% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 19, 2013 | MERC | S | 500 | $9.90 | $4,950 | 8,000 Direct | -5.88% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 19, 2013 | MERC | S | 100 | $9.91 | $991 | 7,900 Direct | -1.25% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 19, 2013 | MERC | S | 100 | $9.91 | $991 | 7,800 Direct | -1.27% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 19, 2013 | MERC | S | 721 | $9.90 | $7,138 | 7,079 Direct | -9.24% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 19, 2013 | MERC | S | 100 | $9.90 | $990 | 6,979 Direct | -1.41% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 16, 2013 | MERC | S | 700 | $9.85 | $6,895 | 14,900 Direct | -4.49% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 16, 2013 | MERC | S | 500 | $9.70 | $4,850 | 14,400 Direct | -3.36% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 16, 2013 | MERC | S | 600 | $9.65 | $5,790 | 13,800 Direct | -4.17% | Disposed | -97.3% (price as of 2026-10-02) |
| Dec. 16, 2013 | MERC | S | 1,000 | $9.68 | $9,680 | 12,800 Direct | -7.25% | Disposed | -97.3% (price as of 2026-10-02) |
| Dec. 16, 2013 | MERC | S | 1,000 | $9.80 | $9,800 | 11,800 Direct | -7.81% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 16, 2013 | MERC | S | 1,000 | $9.75 | $9,750 | 10,800 Direct | -8.47% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 16, 2013 | MERC | S | 800 | $9.95 | $7,960 | 10,000 Direct | -7.41% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 12, 2013 | MERC | S | 1,000 | $9.85 | $9,850 | 19,000 Direct | -5.00% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 12, 2013 | MERC | S | 100 | $9.70 | $970 | 18,900 Direct | -0.53% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 12, 2013 | MERC | S | 400 | $9.75 | $3,900 | 18,500 Direct | -2.12% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 12, 2013 | MERC | S | 800 | $9.81 | $7,848 | 17,700 Direct | -4.32% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 12, 2013 | MERC | S | 800 | $9.85 | $7,880 | 16,900 Direct | -4.52% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 12, 2013 | MERC | S | 200 | $9.90 | $1,980 | 16,700 Direct | -1.18% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 12, 2013 | MERC | S | 214 | $9.70 | $2,076 | 16,486 Direct | -1.28% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 12, 2013 | MERC | S | 1 | $9.66 | $10 | 16,485 Direct | -0.01% | Disposed | -97.3% (price as of 2026-10-02) |
| Dec. 12, 2013 | MERC | S | 685 | $9.65 | $6,610 | 15,800 Direct | -4.16% | Disposed | -97.3% (price as of 2026-10-02) |
| Dec. 12, 2013 | MERC | S | 100 | $9.81 | $981 | 15,700 Direct | -0.63% | Disposed | -97.4% (price as of 2026-10-02) |
| Dec. 12, 2013 | MERC | S | 100 | $9.80 | $980 | 15,600 Direct | -0.64% | Disposed | -97.4% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 5,000 | $13.85 | $69,250 | 43,386 Direct | -10.33% | Disposed | -98.1% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 2,500 | $14.00 | $35,000 | 40,886 Direct | -5.76% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 2,500 | $14.10 | $35,250 | 38,386 Direct | -6.11% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 2,500 | $14.25 | $35,625 | 35,886 Direct | -6.51% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 2,500 | $14.35 | $35,875 | 33,386 Direct | -6.97% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 2,500 | $14.40 | $36,000 | 30,886 Direct | -7.49% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 2,500 | $14.45 | $36,125 | 28,386 Direct | -8.09% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 2,500 | $14.55 | $36,375 | 25,886 Direct | -8.81% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 1,000 | $14.35 | $14,350 | 24,886 Direct | -3.86% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 200 | $14.36 | $2,872 | 24,686 Direct | -0.80% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 200 | $14.24 | $2,848 | 24,486 Direct | -0.81% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 100 | $14.23 | $1,423 | 24,386 Direct | -0.41% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 600 | $14.22 | $8,532 | 23,786 Direct | -2.46% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 500 | $14.21 | $7,105 | 23,286 Direct | -2.10% | Disposed | -98.2% (price as of 2026-10-02) |
| March 3, 2011 | MERC | S | 3,286 | $14.20 | $46,661 | 20,000 Direct | -14.11% | Disposed | -98.2% (price as of 2026-10-02) |
| March 2, 2011 | MERC | S | 1,500 | $13.66 | $20,490 | 56,886 Direct | -2.57% | Disposed | -98.1% (price as of 2026-10-02) |
| March 2, 2011 | MERC | S | 8,500 | $13.65 | $116,025 | 48,386 Direct | -14.94% | Disposed | -98.1% (price as of 2026-10-02) |
| March 5, 2009 | MERC | P | 20,000 | $0.36 | $7,200 | 20,000 Direct | · | Acquired | -28.6% (price as of 2026-10-02) |
| Nov. 24, 2006 | MERC | M | 60,000 | $6.38 | $382,800 | 60,000 Direct | · | Acquired | -96.0% (price as of 2026-10-02) |
Showing latest 100 of 112 transactions
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 |
|---|---|---|---|---|---|---|---|
| June 4, 2026 | MERC | Restricted Stock Units | Common Stock | · | · | 18,665 | Acquired |
| Feb. 15, 2024 | MERC | Performance Share Units | Common Stock | $0.00 | · | 9,279 | Acquired |
| Feb. 15, 2024 | MERC | Performance Share Units | Common Stock | $0.00 | · | 9,279 | Disposed |
| Feb. 15, 2023 | MERC | Performance Share Units | Common Stock | $0.00 | · | 7,884 | Acquired |
| Feb. 15, 2023 | MERC | Performance Share Units | Common Stock | $0.00 | · | 7,884 | Disposed |
| Feb. 16, 2022 | MERC | PERFORMANCE SHARE UNITS | COMMON STOCK | $0.00 | · | 3,707 | Disposed |
| Feb. 16, 2022 | MERC | PERFORMANCE SHARE UNITS | COMMON STOCK | $0.00 | · | 3,707 | Acquired |
| Feb. 16, 2021 | MERC | Performance Share Units | Common Stock | $0.00 | · | 6,066 | Acquired |
| Feb. 16, 2021 | MERC | Performance Share Units | Common Stock | $0.00 | · | 6,066 | Disposed |
| Feb. 13, 2020 | MERC | Performance Share Units | Common Stock | $0.00 | · | 10,834 | Acquired |
| Feb. 13, 2020 | MERC | Performance Share Units | Common Stock | $0.00 | · | 10,834 | Disposed |
| Feb. 14, 2019 | MERC | Performance Share Units | Common Stock | $0.00 | · | 28,838 | Disposed |
| Feb. 14, 2019 | MERC | Performance Share Units | Common Stock | $0.00 | · | 28,838 | Acquired |
| Feb. 20, 2018 | MERC | Performance Share Units | Common Stock | $0.00 | · | 9,304 | Acquired |
| Feb. 20, 2018 | MERC | Performance Share Units | Common Stock | $0.00 | · | 9,304 | Disposed |
| Feb. 23, 2017 | MERC | Performance Share Units | Common Stock | $0.00 | · | 17,756 | Disposed |
| Feb. 23, 2017 | MERC | Performance Share Units | Common Stock | $0.00 | · | 17,756 | Acquired |
| Jan. 5, 2016 | MERC | Performance Share Units | Common Stock | · | · | 12,185 | Disposed |
| Dec. 31, 2015 | MERC | Performance Share Units | Common Stock | · | · | 12,185 | Acquired |
| Feb. 2, 2015 | MERC | Performance Share Units | Common Stock | · | · | 12,185 | Disposed |
| Dec. 31, 2014 | MERC | Performance Share Units | Common Stock | · | · | 12,185 | Acquired |
| Dec. 8, 2014 | MERC | Stock Options | Common Stock | $7.92 | Sept. 10, 2015 | 20,000 | Disposed |
| Dec. 5, 2014 | MERC | Stock Options | Common Stock | $7.92 | Sept. 10, 2015 | 20,000 | Disposed |
| Nov. 24, 2006 | MERC | Stock Options | Common Shares | $6.38 | Jan. 20, 2010 | 60,000 | Disposed |
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 |
|---|---|---|---|---|---|---|---|---|
| 2021 | · | · | · | · | · | · | · | · |
| 2018 | · | · | · | · | · | · | · | · |
| 2017 | · | · | · | · | · | · | · | · |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.