Christopher W Porter
Insider
First SEC filing: Jan. 9, 2017 · Latest: Jan. 9, 2017
Insider at
Insider transactions
0 buys (P)
1 sells (S)
Net: $-1,065,600
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 23, 2026 | USAC | A | 20,000 | · | · | 128,001 Direct | +18.52% | Acquired | (price as of 2026-10-02) |
| Feb. 20, 2026 | USAC | S | 40,000 | $26.64 | $1,065,600 | 108,001 Direct | -27.03% | Disposed | -4.6% (price as of 2026-10-02) |
| Dec. 19, 2025 | USAC | M | 18,568 | · | · | 145,056 Direct | +14.68% | Acquired | (price as of 2026-10-02) |
| Dec. 19, 2025 | USAC | D | 9,284 | $24.27 | $225,323 | 135,772 Direct | -6.40% | Disposed | 4.7% (price as of 2026-10-02) |
| Dec. 19, 2025 | USAC | M | 24,458 | · | · | 160,230 Direct | +18.01% | Acquired | (price as of 2026-10-02) |
| Dec. 19, 2025 | USAC | D | 12,229 | $24.27 | $296,798 | 148,001 Direct | -7.63% | Disposed | 4.7% (price as of 2026-10-02) |
| Dec. 19, 2025 | USAC | M | 18,568 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 19, 2025 | USAC | M | 24,458 | · | · | 16,304 Direct | -60.00% | Disposed | (price as of 2026-10-02) |
| Dec. 5, 2025 | USAC | A | 35,400 | · | · | 126,488 Direct | +38.86% | Acquired | (price as of 2026-10-02) |
| Dec. 5, 2025 | USAC | A | 11,800 | · | · | 17,940 Direct | +192.18% | Acquired | (price as of 2026-10-02) |
| Dec. 20, 2024 | USAC | M | 12,679 | · | · | 78,834 Direct | +19.17% | Acquired | (price as of 2026-10-02) |
| Dec. 20, 2024 | USAC | D | 5,072 | $23.21 | $117,721 | 73,762 Direct | -6.43% | Disposed | 9.5% (price as of 2026-10-02) |
| Dec. 20, 2024 | USAC | M | 28,877 | · | · | 102,639 Direct | +39.15% | Acquired | (price as of 2026-10-02) |
| Dec. 20, 2024 | USAC | D | 11,551 | $23.21 | $268,099 | 91,088 Direct | -11.25% | Disposed | 9.5% (price as of 2026-10-02) |
| Dec. 20, 2024 | USAC | M | 12,679 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 20, 2024 | USAC | M | 28,877 | · | · | 19,251 Direct | -60.00% | Disposed | (price as of 2026-10-02) |
| Dec. 5, 2024 | USAC | A | 27,640 | · | · | 66,155 Direct | +71.76% | Acquired | (price as of 2026-10-02) |
| Dec. 5, 2024 | USAC | A | 9,210 | · | · | 9,210 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 15, 2023 | USAC | M | 11,138 | · | · | 30,157 Direct | +58.56% | Acquired | (price as of 2026-10-02) |
| Dec. 15, 2023 | USAC | D | 5,569 | $23.44 | $130,537 | 24,588 Direct | -18.47% | Disposed | 8.4% (price as of 2026-10-02) |
| Dec. 15, 2023 | USAC | M | 27,854 | · | · | 52,442 Direct | +113.28% | Acquired | (price as of 2026-10-02) |
| Dec. 15, 2023 | USAC | D | 13,927 | $23.44 | $326,449 | 38,515 Direct | -26.56% | Disposed | 8.4% (price as of 2026-10-02) |
| Dec. 15, 2023 | USAC | M | 11,138 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 15, 2023 | USAC | M | 27,854 | · | · | 18,568 Direct | -60.00% | Disposed | (price as of 2026-10-02) |
| Dec. 5, 2023 | USAC | A | 34,982 | · | · | 34,982 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 13, 2023 | USAC | S | 4,074 | $25.99 | $105,883 | 19,019 Direct | -17.64% | Disposed | -2.2% (price as of 2026-10-02) |
| Nov. 10, 2023 | USAC | S | 5,479 | $26.07 | $142,838 | 23,093 Direct | -19.18% | Disposed | -2.5% (price as of 2026-10-02) |
| Nov. 9, 2023 | USAC | S | 7,416 | $26.03 | $193,038 | 28,572 Direct | -20.61% | Disposed | -2.3% (price as of 2026-10-02) |
| Dec. 16, 2022 | USAC | M | 19,019 | · | · | 35,988 Direct | +112.08% | Acquired | (price as of 2026-10-02) |
| Dec. 16, 2022 | USAC | M | 19,019 | · | · | 12,679 Direct | -60.00% | Disposed | (price as of 2026-10-02) |
| Dec. 12, 2022 | USAC | S | 10,000 | $19.32 | $193,200 | 16,969 Direct | -37.08% | Disposed | 31.6% (price as of 2026-10-02) |
| Dec. 5, 2022 | USAC | A | 40,762 | · | · | 40,762 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 17, 2021 | USAC | M | 16,708 | · | · | 35,323 Direct | +89.76% | Acquired | (price as of 2026-10-02) |
| Dec. 17, 2021 | USAC | D | 8,354 | $14.96 | $124,976 | 26,969 Direct | -23.65% | Disposed | 69.9% (price as of 2026-10-02) |
| Dec. 17, 2021 | USAC | M | 16,708 | · | · | 11,138 Direct | -60.00% | Disposed | (price as of 2026-10-02) |
| Dec. 5, 2021 | USAC | A | 48,128 | · | · | 48,128 Direct | · | Acquired | (price as of 2026-10-02) |
| March 12, 2021 | USAC | M | 2,872 | · | · | 20,051 Direct | +16.72% | Acquired | (price as of 2026-10-02) |
| March 12, 2021 | USAC | D | 1,436 | $15.07 | $21,641 | 18,615 Direct | -7.16% | Disposed | 68.7% (price as of 2026-10-02) |
| March 12, 2021 | USAC | M | 2,872 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 5, 2020 | USAC | A | 46,422 | · | · | 46,422 Direct | · | Acquired | (price as of 2026-10-02) |
| March 9, 2020 | USAC | M | 1,810 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 9, 2020 | USAC | M | 2,872 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 9, 2020 | USAC | D | 905 | $15.12 | $13,684 | 17,179 Direct | -5.00% | Disposed | 68.1% (price as of 2026-10-02) |
| March 9, 2020 | USAC | D | 1,436 | $15.12 | $21,712 | 18,084 Direct | -7.36% | Disposed | 68.1% (price as of 2026-10-02) |
| March 9, 2020 | USAC | M | 1,810 | · | · | 19,520 Direct | +10.22% | Acquired | (price as of 2026-10-02) |
| March 9, 2020 | USAC | M | 2,872 | · | · | 17,710 Direct | +19.36% | Acquired | (price as of 2026-10-02) |
| Dec. 5, 2019 | USAC | A | 31,698 | · | · | 31,698 Direct | · | Acquired | (price as of 2026-10-02) |
| March 8, 2019 | USAC | M | 2,873 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 8, 2019 | USAC | M | 1,810 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 8, 2019 | USAC | M | 2,766 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 8, 2019 | USAC | D | 1,437 | $14.99 | $21,541 | 14,838 Direct | -8.83% | Disposed | 69.6% (price as of 2026-10-02) |
| March 8, 2019 | USAC | D | 905 | $14.99 | $13,566 | 16,275 Direct | -5.27% | Disposed | 69.6% (price as of 2026-10-02) |
| March 8, 2019 | USAC | D | 1,383 | $14.99 | $20,731 | 17,180 Direct | -7.45% | Disposed | 69.6% (price as of 2026-10-02) |
| March 8, 2019 | USAC | M | 2,873 | · | · | 18,563 Direct | +18.31% | Acquired | (price as of 2026-10-02) |
| March 8, 2019 | USAC | M | 1,810 | · | · | 15,690 Direct | +13.04% | Acquired | (price as of 2026-10-02) |
| March 8, 2019 | USAC | M | 2,766 | · | · | 13,880 Direct | +24.89% | Acquired | (price as of 2026-10-02) |
| Dec. 5, 2018 | USAC | A | 27,846 | · | · | 27,846 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 3, 2018 | USAC | M | 2,095 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 3, 2018 | USAC | M | 2,095 | · | · | 11,114 Direct | +23.23% | Acquired | (price as of 2026-10-02) |
| April 13, 2018 | USAC | M | 2,154 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| April 13, 2018 | USAC | M | 1,358 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| April 13, 2018 | USAC | M | 2,075 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| April 13, 2018 | USAC | D | 1,077 | $16.93 | $18,234 | 9,019 Direct | -10.67% | Disposed | 50.1% (price as of 2026-10-02) |
| April 13, 2018 | USAC | D | 679 | $16.93 | $11,495 | 10,096 Direct | -6.30% | Disposed | 50.1% (price as of 2026-10-02) |
| April 13, 2018 | USAC | D | 1,038 | $16.93 | $17,573 | 10,775 Direct | -8.79% | Disposed | 50.1% (price as of 2026-10-02) |
| April 13, 2018 | USAC | M | 2,154 | · | · | 11,813 Direct | +22.30% | Acquired | (price as of 2026-10-02) |
| April 13, 2018 | USAC | M | 1,358 | · | · | 9,659 Direct | +16.36% | Acquired | (price as of 2026-10-02) |
| April 13, 2018 | USAC | M | 2,075 | · | · | 8,301 Direct | +33.33% | Acquired | (price as of 2026-10-02) |
| March 9, 2018 | USAC | M | 1,811 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 9, 2018 | USAC | M | 2,766 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 9, 2018 | USAC | D | 906 | $17.87 | $16,190 | 6,226 Direct | -12.70% | Disposed | 42.2% (price as of 2026-10-02) |
| March 9, 2018 | USAC | D | 1,383 | $17.87 | $24,714 | 7,132 Direct | -16.24% | Disposed | 42.2% (price as of 2026-10-02) |
| March 9, 2018 | USAC | M | 1,811 | · | · | 8,515 Direct | +27.01% | Acquired | (price as of 2026-10-02) |
| March 9, 2018 | USAC | M | 2,766 | · | · | 6,704 Direct | +70.24% | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2018 | USAC | A | 2,154 | · | · | 2,154 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2018 | USAC | A | 8,617 | · | · | 8,617 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 4, 2017 | USAC | M | 2,095 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 4, 2017 | USAC | D | 587 | $16.27 | $9,550 | 3,938 Direct | -12.97% | Disposed | 56.2% (price as of 2026-10-02) |
| Dec. 4, 2017 | USAC | M | 2,095 | · | · | 4,525 Direct | +86.21% | Acquired | (price as of 2026-10-02) |
| March 10, 2017 | USAC | M | 2,766 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 10, 2017 | USAC | D | 1,383 | $18.13 | $25,074 | 2,430 Direct | -36.27% | Disposed | 40.2% (price as of 2026-10-02) |
| March 10, 2017 | USAC | M | 2,766 | · | · | 3,813 Direct | +264.18% | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2017 | USAC | A | 1,358 | · | · | 1,358 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2017 | USAC | A | 5,431 | · | · | 5,431 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 |
|---|---|---|---|---|---|---|---|
| Dec. 19, 2025 | USAC | Phantom Units [F3] | Common Units | · | · | 18,568 | Disposed |
| Dec. 19, 2025 | USAC | Phantom Units [F5] | Common Units | · | · | 24,458 | Disposed |
| Dec. 5, 2025 | USAC | Cash Units | Common Units | · | · | 11,800 | Acquired |
| Dec. 20, 2024 | USAC | Phantom Units [F3] | Common Units | · | · | 12,679 | Disposed |
| Dec. 20, 2024 | USAC | Phantom Units [F5] | Common Units | · | · | 28,877 | Disposed |
| Dec. 5, 2024 | USAC | Cash Units | Common Units | · | · | 9,210 | Acquired |
| Dec. 15, 2023 | USAC | Phantom Units [F3] | Common Units | · | · | 11,138 | Disposed |
| Dec. 15, 2023 | USAC | Phantom Units [F5] | Common Units | · | · | 27,854 | Disposed |
| Dec. 5, 2023 | USAC | Phantom Units | Common Units | · | · | 34,982 | Acquired |
| Dec. 16, 2022 | USAC | Phantom Units [F2] | Common Units | · | · | 19,019 | Disposed |
| Dec. 5, 2022 | USAC | Phantom Units | Common Units | · | · | 40,762 | Acquired |
| Dec. 17, 2021 | USAC | Phantom Units [F3] | Common Units | · | · | 16,708 | Disposed |
| Dec. 5, 2021 | USAC | Phantom Units | Common Units | · | · | 48,128 | Acquired |
| March 12, 2021 | USAC | Phantom Units | Common Units | · | March 12, 2021 | 2,872 | Disposed |
| Dec. 5, 2020 | USAC | Phantom Units | Common Units | · | · | 46,422 | Acquired |
| March 9, 2020 | USAC | Phantom Units | Common Units | · | March 9, 2020 | 1,810 | Disposed |
| March 9, 2020 | USAC | Phantom Units | Common Units | · | March 9, 2020 | 2,872 | Disposed |
| Dec. 5, 2019 | USAC | Phantom Units | Common Units | · | · | 31,698 | Acquired |
| March 8, 2019 | USAC | Phantom Units | Common Units | · | March 8, 2019 | 2,873 | Disposed |
| March 8, 2019 | USAC | Phantom Units | Common Units | · | March 8, 2019 | 1,810 | Disposed |
| March 8, 2019 | USAC | Phantom Units | Common Units | · | March 8, 2019 | 2,766 | Disposed |
| Dec. 5, 2018 | USAC | Phantom Units | Common Units | · | · | 27,846 | Acquired |
| Dec. 3, 2018 | USAC | Phantom Units | Common Units | · | Dec. 3, 2018 | 2,095 | Disposed |
| April 13, 2018 | USAC | Phantom Units | Common Units | · | · | 2,154 | Disposed |
| April 13, 2018 | USAC | Phantom Units | Common Units | · | · | 1,358 | Disposed |
| April 13, 2018 | USAC | Phantom Units | Common Units | · | · | 2,075 | Disposed |
| March 9, 2018 | USAC | Phantom Units | Common Units | · | March 9, 2018 | 1,811 | Disposed |
| March 9, 2018 | USAC | Phantom Units | Common Units | · | March 9, 2018 | 2,766 | Disposed |
| Feb. 12, 2018 | USAC | Phantom Units | Common Units | · | · | 2,154 | Acquired |
| Feb. 12, 2018 | USAC | Phantom Units | Common Units | · | · | 8,617 | Acquired |
| Dec. 4, 2017 | USAC | Phantom Units | Common Units | · | Dec. 4, 2017 | 2,095 | Disposed |
| March 10, 2017 | USAC | Phantom Units | Common Units | · | March 10, 2017 | 2,766 | Disposed |
| Feb. 13, 2017 | USAC | Phantom Units | Common Units | · | · | 1,358 | Acquired |
| Feb. 13, 2017 | USAC | Phantom Units | Common Units | · | · | 5,431 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.