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Mark D Dewalch
Insider
First SEC filing: Aug. 3, 2015 · Latest: Aug. 3, 2015
Insider at
Insider transactions
3 buys (P)
0 sells (S)
Net: $1,482,793
Avg return of open purchases vs now: 8.4%
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 |
|---|---|---|---|---|---|---|---|---|---|
| July 2, 2026 | BSM | A | 1,342 | $13.97 | $18,748 | 432,837 Direct | +0.31% | Acquired | 4.2% (price as of 2026-10-02) |
| June 1, 2026 | BSM | P | 36,363 | $13.62 | $495,264 | 631,248 Indirect | +6.11% | Acquired | 6.9% (price as of 2026-10-02) |
| May 29, 2026 | BSM | P | 36,363 | $13.48 | $490,173 | 594,885 Indirect | +6.51% | Acquired | 8.0% (price as of 2026-10-02) |
| May 28, 2026 | BSM | P | 37,650 | $13.21 | $497,356 | 431,495 Direct | +9.56% | Acquired | 10.2% (price as of 2026-10-02) |
| April 2, 2026 | BSM | A | 1,240 | $15.12 | $18,749 | 393,845 Direct | +0.32% | Acquired | -3.7% (price as of 2026-10-02) |
| Jan. 13, 2026 | BSM | A | 14,255 | · | · | 392,605 Direct | +3.77% | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2026 | BSM | A | 1,410 | $13.29 | $18,739 | 378,350 Direct | +0.37% | Acquired | 9.6% (price as of 2026-10-02) |
| Oct. 3, 2025 | BSM | A | 1,426 | $13.14 | $18,738 | 376,940 Direct | +0.38% | Acquired | 10.8% (price as of 2026-10-02) |
| July 3, 2025 | BSM | A | 1,433 | $13.08 | $18,744 | 375,514 Direct | +0.38% | Acquired | 11.3% (price as of 2026-10-02) |
| April 4, 2025 | BSM | A | 1,227 | $15.27 | $18,736 | 374,081 Direct | +0.33% | Acquired | -4.6% (price as of 2026-10-02) |
| Jan. 13, 2025 | BSM | A | 13,324 | · | · | 372,854 Direct | +3.71% | Acquired | (price as of 2026-10-02) |
| Jan. 3, 2025 | BSM | A | 1,284 | $14.60 | $18,746 | 359,530 Direct | +0.36% | Acquired | -0.3% (price as of 2026-10-02) |
| Oct. 4, 2024 | BSM | A | 1,241 | $15.10 | $18,739 | 358,246 Direct | +0.35% | Acquired | -3.6% (price as of 2026-10-02) |
| Aug. 15, 2024 | BSM | P | 34,200 | $14.62 | $500,004 | 357,005 Direct | +10.59% | Acquired | -0.4% (price as of 2026-10-02) |
| July 5, 2024 | BSM | A | 1,196 | $15.67 | $18,741 | 322,805 Direct | +0.37% | Acquired | -7.1% (price as of 2026-10-02) |
| April 5, 2024 | BSM | A | 1,173 | $15.98 | $18,745 | 321,609 Direct | +0.37% | Acquired | -8.9% (price as of 2026-10-02) |
| Feb. 26, 2024 | BSM | P | 3,250 | $15.47 | $50,278 | 320,436 Direct | +1.02% | Acquired | -5.9% (price as of 2026-10-02) |
| Jan. 11, 2024 | BSM | A | 12,307 | · | · | 317,186 Direct | +4.04% | Acquired | (price as of 2026-10-02) |
| Nov. 17, 2023 | BSM | P | 22,297 | $17.49 | $389,975 | 304,879 Direct | +7.89% | Acquired | -16.8% (price as of 2026-10-02) |
| Nov. 16, 2023 | BSM | P | 21,703 | $17.14 | $371,989 | 282,582 Direct | +8.32% | Acquired | -15.1% (price as of 2026-10-02) |
| March 6, 2023 | BSM | P | 3,100 | $15.85 | $49,135 | 13,417 Indirect | +30.05% | Acquired | -8.1% (price as of 2026-10-02) |
| March 6, 2023 | BSM | P | 31,150 | $15.85 | $493,728 | 260,879 Direct | +13.56% | Acquired | -8.1% (price as of 2026-10-02) |
| Jan. 11, 2023 | BSM | A | 12,539 | · | · | 229,729 Direct | +5.77% | Acquired | (price as of 2026-10-02) |
| Jan. 11, 2022 | BSM | A | 14,115 | · | · | 217,190 Direct | +6.95% | Acquired | (price as of 2026-10-02) |
| Jan. 12, 2021 | BSM | A | 15,414 | · | · | 203,075 Direct | +8.21% | Acquired | (price as of 2026-10-02) |
| Jan. 13, 2020 | BSM | A | 13,389 | · | · | 187,661 Direct | +7.68% | Acquired | (price as of 2026-10-02) |
| June 10, 2019 | BSM | P | 5,350 | $16.44 | $87,954 | 40,809 Indirect | +15.09% | Acquired | -11.4% (price as of 2026-10-02) |
| May 24, 2019 | BSM | C | 20,108 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-02) |
| May 24, 2019 | BSM | C | 4,333 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-02) |
| May 24, 2019 | BSM | C | 3,827 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-02) |
| May 24, 2019 | BSM | C | 70,865 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 24, 2019 | BSM | C | 20,108 | · | · | 35,459 Indirect | +130.99% | Acquired | (price as of 2026-10-02) |
| May 24, 2019 | BSM | C | 4,333 | · | · | 10,317 Indirect | +72.41% | Acquired | (price as of 2026-10-02) |
| May 24, 2019 | BSM | C | 3,827 | · | · | 6,749 Indirect | +130.97% | Acquired | (price as of 2026-10-02) |
| May 24, 2019 | BSM | C | 70,865 | · | · | 174,272 Direct | +68.53% | Acquired | (price as of 2026-10-02) |
| Jan. 11, 2019 | BSM | A | 10,842 | · | · | 103,407 Direct | +11.71% | Acquired | (price as of 2026-10-02) |
| Nov. 16, 2018 | BSM | P | 1,175 | $17.06 | $20,046 | 5,984 Indirect | +24.43% | Acquired | -14.7% (price as of 2026-10-02) |
| April 5, 2018 | BSM | C | 9 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-02) |
| April 5, 2018 | BSM | C | 3 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-02) |
| April 5, 2018 | BSM | C | 3 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-02) |
| April 5, 2018 | BSM | C | 5 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-02) |
| April 5, 2018 | BSM | C | 358 | · | · | 20,108 Indirect | +1.81% | Acquired | (price as of 2026-10-02) |
| April 5, 2018 | BSM | C | 119 | · | · | 4,333 Indirect | +2.82% | Acquired | (price as of 2026-10-02) |
| April 5, 2018 | BSM | C | 119 | · | · | 4,333 Indirect | +2.82% | Acquired | (price as of 2026-10-02) |
| April 5, 2018 | BSM | C | 199 | · | · | 3,827 Indirect | +5.49% | Acquired | (price as of 2026-10-02) |
| April 5, 2018 | BSM | C | 273 | · | · | 15,351 Indirect | +1.81% | Acquired | (price as of 2026-10-02) |
| April 5, 2018 | BSM | C | 91 | · | · | 4,809 Indirect | +1.93% | Acquired | (price as of 2026-10-02) |
| April 5, 2018 | BSM | C | 91 | · | · | 4,824 Indirect | +1.92% | Acquired | (price as of 2026-10-02) |
| April 5, 2018 | BSM | C | 152 | · | · | 2,922 Indirect | +5.49% | Acquired | (price as of 2026-10-02) |
| Jan. 11, 2018 | BSM | A | 9,536 | · | · | 92,565 Direct | +11.49% | Acquired | (price as of 2026-10-02) |
| April 28, 2017 | BSM | C | 8 | · | · | 9 Indirect | -47.06% | Disposed | (price as of 2026-10-02) |
| April 28, 2017 | BSM | C | 2 | · | · | 3 Indirect | -40.00% | Disposed | (price as of 2026-10-02) |
| April 28, 2017 | BSM | C | 2 | · | · | 3 Indirect | -40.00% | Disposed | (price as of 2026-10-02) |
| April 28, 2017 | BSM | C | 5 | · | · | 5 Indirect | -50.00% | Disposed | (price as of 2026-10-02) |
| April 28, 2017 | BSM | C | 318 | · | · | 19,750 Indirect | +1.64% | Acquired | (price as of 2026-10-02) |
| April 28, 2017 | BSM | C | 79 | · | · | 4,214 Indirect | +1.91% | Acquired | (price as of 2026-10-02) |
| April 28, 2017 | BSM | C | 79 | · | · | 4,214 Indirect | +1.91% | Acquired | (price as of 2026-10-02) |
| April 28, 2017 | BSM | C | 199 | · | · | 3,628 Indirect | +5.80% | Acquired | (price as of 2026-10-02) |
| April 28, 2017 | BSM | C | 243 | · | · | 15,078 Indirect | +1.64% | Acquired | (price as of 2026-10-02) |
| April 28, 2017 | BSM | C | 61 | · | · | 4,718 Indirect | +1.31% | Acquired | (price as of 2026-10-02) |
| April 28, 2017 | BSM | C | 61 | · | · | 4,733 Indirect | +1.31% | Acquired | (price as of 2026-10-02) |
| April 28, 2017 | BSM | C | 152 | · | · | 2,770 Indirect | +5.81% | Acquired | (price as of 2026-10-02) |
| Jan. 11, 2017 | BSM | A | 9,095 | · | · | 83,029 Direct | +12.30% | Acquired | (price as of 2026-10-02) |
| April 8, 2016 | BSM | C | 8 | · | · | 17 Indirect | -32.00% | Disposed | (price as of 2026-10-02) |
| April 8, 2016 | BSM | C | 2 | · | · | 5 Indirect | -28.57% | Disposed | (price as of 2026-10-02) |
| April 8, 2016 | BSM | C | 2 | · | · | 5 Indirect | -28.57% | Disposed | (price as of 2026-10-02) |
| April 8, 2016 | BSM | C | 5 | · | · | 10 Indirect | -33.33% | Disposed | (price as of 2026-10-02) |
| April 8, 2016 | BSM | C | 318 | · | · | 19,432 Indirect | +1.66% | Acquired | (price as of 2026-10-02) |
| April 8, 2016 | BSM | C | 79 | · | · | 4,135 Indirect | +1.95% | Acquired | (price as of 2026-10-02) |
| April 8, 2016 | BSM | C | 79 | · | · | 4,135 Indirect | +1.95% | Acquired | (price as of 2026-10-02) |
| April 8, 2016 | BSM | C | 199 | · | · | 3,429 Indirect | +6.16% | Acquired | (price as of 2026-10-02) |
| April 8, 2016 | BSM | C | 243 | · | · | 14,835 Indirect | +1.67% | Acquired | (price as of 2026-10-02) |
| April 8, 2016 | BSM | C | 61 | · | · | 4,657 Indirect | +1.33% | Acquired | (price as of 2026-10-02) |
| April 8, 2016 | BSM | C | 61 | · | · | 4,672 Indirect | +1.32% | Acquired | (price as of 2026-10-02) |
| April 8, 2016 | BSM | C | 152 | · | · | 2,618 Indirect | +6.16% | Acquired | (price as of 2026-10-02) |
| Jan. 12, 2016 | BSM | A | 12,368 | · | · | 73,934 Direct | +20.09% | Acquired | (price as of 2026-10-02) |
| July 30, 2015 | BSM | P | 15 | $14.56 | $218 | 4,611 Indirect | +0.33% | Acquired | 0.0% (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 25 | · | · | 101,375 Indirect | +0.02% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 7 | · | · | 101,350 Indirect | +0.01% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 7 | · | · | 101,343 Indirect | +0.01% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 15 | · | · | 101,336 Indirect | +0.01% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 19,114 | · | · | 101,321 Indirect | +23.25% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 4,056 | · | · | 82,207 Indirect | +5.19% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 4,056 | · | · | 78,151 Indirect | +5.47% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 3,230 | · | · | 74,095 Indirect | +4.56% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 70,865 | · | · | 70,865 Direct | · | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | P | 1,500 | $19.00 | $28,500 | 87,816 Indirect | +1.74% | Acquired | -23.4% (price as of 2026-10-02) |
| May 6, 2015 | BSM | P | 1,500 | $19.00 | $28,500 | 86,316 Indirect | +1.77% | Acquired | -23.4% (price as of 2026-10-02) |
| May 6, 2015 | BSM | P | 2,200 | $19.00 | $41,800 | 84,816 Direct | +2.66% | Acquired | -23.4% (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 14,592 | · | · | 82,616 Indirect | +21.45% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 3,096 | · | · | 68,024 Indirect | +4.77% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 3,096 | · | · | 64,928 Indirect | +5.01% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 2,466 | · | · | 61,832 Indirect | +4.15% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | J | 54,103 | · | · | 59,366 Direct | +1027.99% | Acquired | (price as of 2026-10-02) |
| May 6, 2015 | BSM | A | 5,263 | · | · | 5,263 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 |
|---|---|---|---|---|---|---|---|
| May 24, 2019 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 20,108 | Disposed |
| May 24, 2019 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 4,333 | Disposed |
| May 24, 2019 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 3,827 | Disposed |
| May 24, 2019 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 70,865 | Disposed |
| April 5, 2018 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests | · | · | 9 | Disposed |
| April 5, 2018 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests | · | · | 3 | Disposed |
| April 5, 2018 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests | · | · | 3 | Disposed |
| April 5, 2018 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests | · | · | 5 | Disposed |
| April 5, 2018 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 358 | Acquired |
| April 5, 2018 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 119 | Acquired |
| April 5, 2018 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 119 | Acquired |
| April 5, 2018 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 199 | Acquired |
| April 28, 2017 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests | · | · | 8 | Disposed |
| April 28, 2017 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests | · | · | 2 | Disposed |
| April 28, 2017 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests | · | · | 2 | Disposed |
| April 28, 2017 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests | · | · | 5 | Disposed |
| April 28, 2017 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 318 | Acquired |
| April 28, 2017 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 79 | Acquired |
| April 28, 2017 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 79 | Acquired |
| April 28, 2017 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 199 | Acquired |
| April 8, 2016 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests | · | · | 8 | Disposed |
| April 8, 2016 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests | · | · | 2 | Disposed |
| April 8, 2016 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests | · | · | 2 | Disposed |
| April 8, 2016 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests | · | · | 5 | Disposed |
| April 8, 2016 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 318 | Acquired |
| April 8, 2016 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 79 | Acquired |
| April 8, 2016 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 79 | Acquired |
| April 8, 2016 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 199 | Acquired |
| May 6, 2015 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests [F3] | · | · | 25 | Acquired |
| May 6, 2015 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests [F3] | · | · | 7 | Acquired |
| May 6, 2015 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests [F3] | · | · | 7 | Acquired |
| May 6, 2015 | BSM | Preferred units representing limited partner interests | Common and subordinated units representing LP interests [F3] | · | · | 15 | Acquired |
| May 6, 2015 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 19,114 | Acquired |
| May 6, 2015 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 4,056 | Acquired |
| May 6, 2015 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 4,056 | Acquired |
| May 6, 2015 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 3,230 | Acquired |
| May 6, 2015 | BSM | Subordinated units representing limited partner interests | Common units representing limited partner interests | · | · | 70,865 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).