Neal Walker
CIK 1604457 · View on SEC EDGAR ↗
Insider
First SEC filing: June 11, 2026 · Latest: June 11, 2026
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 82 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
82 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 3, 2023 | ACRS | S | 30,240 | $12.63 | $381,931 | 1,273,202 Direct | -2.32% | Disposed | -49.3% (price as of 2026-08-20) |
| March 2, 2023 | ACRS | S | 29,000 | $12.37 | $358,730 | 1,285,188 Direct | -2.21% | Disposed | -48.3% (price as of 2026-08-20) |
| Feb. 2, 2023 | ACRS | S 10b5-1 | 200 | $17.54 | $3,508 | 1,175,763 Direct | -0.02% | Disposed | -63.5% (price as of 2026-08-20) |
| Feb. 2, 2023 | ACRS | S 10b5-1 | 3,121 | $16.88 | $52,682 | 1,175,963 Direct | -0.26% | Disposed | -62.1% (price as of 2026-08-20) |
| Feb. 2, 2023 | ACRS | S 10b5-1 | 600 | $15.55 | $9,330 | 1,179,084 Direct | -0.05% | Disposed | -58.8% (price as of 2026-08-20) |
| Feb. 2, 2023 | ACRS | S 10b5-1 | 1,079 | $14.57 | $15,721 | 1,179,684 Direct | -0.09% | Disposed | -56.1% (price as of 2026-08-20) |
| Feb. 1, 2023 | ACRS | S 10b5-1 | 25,000 | $16.75 | $418,750 | 1,180,763 Direct | -2.07% | Disposed | -61.8% (price as of 2026-08-20) |
| Jan. 4, 2023 | ACRS | S 10b5-1 | 15,000 | $14.89 | $223,350 | 1,205,763 Direct | -1.23% | Disposed | -57.0% (price as of 2026-08-20) |
| Jan. 3, 2023 | ACRS | S 10b5-1 | 1,618 | $16.16 | $26,147 | 1,220,763 Direct | -0.13% | Disposed | -60.4% (price as of 2026-08-20) |
| Jan. 3, 2023 | ACRS | S 10b5-1 | 23,382 | $15.19 | $355,173 | 1,222,381 Direct | -1.88% | Disposed | -57.9% (price as of 2026-08-20) |
| April 25, 2022 | ACRS | S 10b5-1 | 20,000 | $15.18 | $303,600 | 1,245,763 Direct | -1.58% | Disposed | -57.8% (price as of 2026-08-20) |
| April 22, 2022 | ACRS | S 10b5-1 | 25,000 | $15.04 | $376,000 | 1,265,763 Direct | -1.94% | Disposed | -57.4% (price as of 2026-08-20) |
| April 21, 2022 | ACRS | S 10b5-1 | 25,000 | $15.24 | $381,000 | 1,290,763 Direct | -1.90% | Disposed | -58.0% (price as of 2026-08-20) |
| March 11, 2022 | ACRS | S | 56,303 | $15.91 | $895,781 | 1,315,763 Direct | -4.10% | Disposed | -59.8% (price as of 2026-08-20) |
| Feb. 9, 2022 | ACRS | S | 3,595 | $12.66 | $45,513 | 1,239,387 Direct | -0.29% | Disposed | -49.4% (price as of 2026-08-20) |
| June 2, 2021 | ACRS | S | 5,517 | $22.30 | $123,029 | 1,232,182 Direct | -0.45% | Disposed | -71.3% (price as of 2026-08-20) |
| June 2, 2021 | ACRS | S | 27,743 | $21.51 | $596,752 | 1,237,699 Direct | -2.19% | Disposed | -70.2% (price as of 2026-08-20) |
| April 22, 2021 | ACRS | S 10b5-1 | 30,000 | $26.84 | $805,200 | 1,192,427 Direct | -2.45% | Disposed | -76.2% (price as of 2026-08-20) |
Showing latest 100 of 141 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 9, 2026 | ALDX | Stock Option (Right to Buy) | Common Stock (3,318) | $1.72 | June 8, 2036 | 3,318 | Acquired |
| June 9, 2026 | ALDX | Stock Option (Right to Buy) | Common Stock (70,000) | $1.72 | June 8, 2036 | 70,000 | Acquired |
| June 10, 2025 | ALDX | Stock Option (Right to Buy) | Common Stock (2,413) | $2.68 | June 9, 2035 | 2,413 | Acquired |
| June 10, 2025 | ALDX | Stock Option (Right to Buy) | Common Stock (62,728) | $2.68 | June 9, 2035 | 62,728 | Acquired |
| June 4, 2024 | ALDX | Stock Option (Right to Buy) | Common Stock (1,736) | $4.09 | June 3, 2034 | 1,736 | Acquired |
| June 4, 2024 | ALDX | Stock Option (Right to Buy) | Common Stock (40,282) | $4.09 | June 3, 2034 | 40,282 | Acquired |
| March 1, 2024 | ACRS | Restricted Stock Units | Common Stock (9,466) | — | — | 9,466 | Disposed |
| Feb. 1, 2024 | ACRS | Restricted Stock Units | Common Stock (142,000) | — | — | 142,000 | Acquired |
| Feb. 1, 2024 | ACRS | Stock Option (Right to Buy) | Common Stock (497,000) | $1.20 | Jan. 31, 2034 | 497,000 | Acquired |
| Aug. 22, 2023 | ALDX | Stock Option (Right to Buy) | Common Stock (9,604) | $0.55 | Sept. 7, 2023 | 9,604 | Disposed |
| June 30, 2023 | ALDX | Stock Option (Right to Buy) | Common Stock (915) | $8.39 | June 29, 2033 | 915 | Acquired |
| June 30, 2023 | ALDX | Stock Option (Right to Buy) | Common Stock (21,222) | $8.39 | June 29, 2033 | 21,222 | Acquired |
| March 2, 2023 | ACRS | Restricted Stock Units | Common Stock (18,254) | — | — | 18,254 | Disposed |
| March 1, 2023 | ACRS | Restricted Stock Units | Common Stock (18,275) | — | — | 18,275 | Disposed |
| March 1, 2023 | ACRS | Restricted Stock Units | Common Stock (24,000) | — | — | 24,000 | Disposed |
| March 1, 2023 | ACRS | Restricted Stock Units | Common Stock (96,150) | — | — | 96,150 | Disposed |
| June 7, 2022 | ALDX | Stock Option (Right to Buy) | Common Stock (2,319) | $3.60 | June 6, 2032 | 2,319 | Acquired |
| June 7, 2022 | ALDX | Stock Option (Right to Buy) | Common Stock (53,812) | $3.60 | June 6, 2032 | 53,812 | Acquired |
| March 2, 2022 | ACRS | Restricted stock units | Common Stock (18,254) | — | — | 18,254 | Disposed |
| March 1, 2022 | ACRS | Restricted stock units | Common Stock (18,275) | — | — | 18,275 | Disposed |
| March 1, 2022 | ACRS | Restricted stock units | Common Stock (96,150) | — | — | 96,150 | Disposed |
| March 1, 2022 | ACRS | Restricted stock units | Common Stock (96,000) | — | — | 96,000 | Acquired |
| March 1, 2022 | ACRS | Employee Stock Option (Right to Buy) | Common Stock (336,100) | $14.94 | Feb. 29, 2032 | 336,100 | Acquired |
| Feb. 1, 2022 | ACRS | Restricted Stock Units | Common Stock (10,800) | — | — | 10,800 | Disposed |
| June 8, 2021 | ALDX | Stock Option (Right to Buy) | Common Stock (583) | $12.97 | June 7, 2031 | 583 | Acquired |
| June 8, 2021 | ALDX | Stock Option (Right to Buy) | Common Stock (13,534) | $12.97 | June 7, 2031 | 13,534 | Acquired |
| June 1, 2021 | ACRS | Restricted Stock Units | Common Stock (73,015) | — | — | 73,015 | Disposed |
| March 2, 2021 | ACRS | Restricted stock units | Common Stock (18,253) | — | — | 18,253 | Disposed |
| March 1, 2021 | ACRS | Restricted stock units | Common Stock (96,150) | — | — | 96,150 | Disposed |
| March 1, 2021 | ACRS | Restricted stock units | Common Stock (73,100) | — | — | 73,100 | Acquired |
| March 1, 2021 | ACRS | Employee Stock Option (Right to Buy) | Common Stock (255,800) | $24.06 | Feb. 28, 2031 | 255,800 | Acquired |
| Feb. 1, 2021 | ACRS | Restricted Stock Units | Common Stock (10,800) | — | — | 10,800 | Disposed |
| Dec. 15, 2020 | ACRS | Restricted Stock Units | Common Stock (3,034) | — | — | 3,034 | Disposed |
| Sept. 1, 2020 | ACRS | Restricted stock units | Common Stock (83,092) | — | — | 83,092 | Disposed |
| Sept. 1, 2020 | ACRS | Restricted stock units | Common Stock (83,092) | — | — | 83,092 | Acquired |
| June 9, 2020 | ALDX | Stock Option (Right to Buy) | Common Stock (1,541) | $5.02 | June 8, 2030 | 1,541 | Acquired |
| June 9, 2020 | ALDX | Stock Option (Right to Buy) | Common Stock (26,503) | $5.02 | June 8, 2030 | 26,503 | Acquired |
| June 1, 2020 | ACRS | Restricted stock units | Common Stock (73,014) | — | — | 73,014 | Disposed |
| March 2, 2020 | ACRS | Restricted stock units | Common Stock (52,564) | — | — | 52,564 | Disposed |
| March 2, 2020 | ACRS | Restricted stock units | Common Stock (52,564) | — | — | 52,564 | Acquired |
| March 2, 2020 | ACRS | Restricted stock units | Common Stock (73,015) | — | — | 73,015 | Acquired |
| March 2, 2020 | ACRS | Restricted stock units | Common Stock (146,029) | — | — | 146,029 | Acquired |
| March 2, 2020 | ACRS | Employee Stock Option (Right to Buy) | Common Stock (255,552) | $1.26 | March 1, 2030 | 255,552 | Acquired |
| March 2, 2020 | ACRS | Restricted stock units | Common Stock (96,150) | — | — | 96,150 | Disposed |
| Feb. 3, 2020 | ACRS | Restricted Stock Units | Common Stock (10,800) | — | — | 10,800 | Disposed |
| Dec. 18, 2019 | ACRS | Restricted Stock Units | Common Stock (2,925) | — | — | 2,925 | Disposed |
| Dec. 16, 2019 | ACRS | Restricted Stock Units | Common Stock (3,033) | — | — | 3,033 | Disposed |
| June 4, 2019 | ALDX | Employee Stock Option (Right to Buy) | Common Stock (1,102) | $7.06 | June 3, 2029 | 1,102 | Acquired |
| June 4, 2019 | ALDX | Employee Stock Option (Right to Buy) | Common Stock (18,951) | $7.06 | June 3, 2029 | 18,951 | Acquired |
| March 1, 2019 | ACRS | Restricted stock units | Common Stock (384,600) | — | — | 384,600 | Acquired |
| Feb. 1, 2019 | ACRS | Restricted Stock Units | Common Stock (10,800) | — | — | 10,800 | Disposed |
| Dec. 18, 2018 | ACRS | Restricted Stock Units | Common Stock (2,925) | — | — | 2,925 | Disposed |
| Dec. 15, 2018 | ACRS | Restricted Stock Units | Common Stock (3,033) | — | — | 3,033 | Disposed |
| June 7, 2018 | ALDX | Employee Stock Option (Right to Buy) | Common Stock (903) | $8.35 | June 6, 2028 | 903 | Acquired |
| June 7, 2018 | ALDX | Employee Stock Option (Right to Buy) | Common Stock (15,526) | $8.35 | June 6, 2028 | 15,526 | Acquired |
| May 7, 2018 | ACRS | Restricted Stock Units | Common Stock (12,133) | — | — | 12,133 | Disposed |
| Feb. 1, 2018 | ACRS | Restricted stock units | Common Stock (43,200) | — | — | 43,200 | Acquired |
| Feb. 1, 2018 | ACRS | Stock option (right to buy) | Common Stock (151,200) | $22.09 | Jan. 31, 2028 | 151,200 | Acquired |
| Dec. 18, 2017 | ACRS | Restricted Stock Units | Common Stock (2,925) | — | — | 2,925 | Disposed |
| Dec. 15, 2017 | ACRS | Restricted Stock Units | Common Stock (3,033) | — | — | 3,033 | Disposed |
| June 8, 2017 | ALDX | Stock Option (Right to Buy) | Common Stock (1,481) | $5.15 | June 7, 2027 | 1,481 | Acquired |
| June 8, 2017 | ALDX | Stock Option (Right to Buy) | Common Stock (17,776) | $5.15 | June 7, 2027 | 17,776 | Acquired |
| Dec. 18, 2016 | ACRS | Restricted Stock Units | Common Stock (2,925) | — | — | 2,925 | Disposed |
| Dec. 15, 2016 | ACRS | Restricted stock units | Common Stock (24,266) | — | — | 24,266 | Acquired |
| Dec. 15, 2016 | ACRS | Stock option (right to buy) | Common Stock (145,600) | $28.92 | Dec. 14, 2026 | 145,600 | Acquired |
| June 9, 2016 | ALDX | Employee Stock Option (Right to Buy) | Common Stock (6,083) | $5.97 | June 8, 2026 | 6,083 | Acquired |
| Dec. 18, 2015 | ACRS | Restricted stock units | Common Stock (11,700) | — | — | 11,700 | Acquired |
| Dec. 18, 2015 | ACRS | Stock option (right to buy) | Common Stock (137,335) | $28.68 | Dec. 17, 2025 | 137,335 | Acquired |
| June 9, 2015 | ALDX | Employee Stock Option (Right to Buy) | Common Stock (6,083) | $7.74 | June 8, 2025 | 6,083 | Acquired |
| May 7, 2014 | ALDX | Employee Stock Option (Right to Buy) | Common Stock (12,166) | $8.00 | May 6, 2024 | 12,166 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 6, 2015 | ACRS | Common Stock | 785,507 | Direct |
| Oct. 6, 2015 | ACRS | Employee Stock Option (right to buy)→ Common Stock (43,548) | 43,548 | Direct |
| Oct. 6, 2015 | ACRS | Employee Stock Option (right to buy)→ Common Stock (118,840) | 118,840 | Direct |
| Oct. 6, 2015 | ACRS | Employee Stock Option (right to buy)→ Common Stock (211,019) | 211,019 | Direct |
| May 1, 2014 | ALDX | Employee Stock Option (Right to Buy)→ Common Stock (9,604) | 9,604 | 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 | $615,000 | — | $828,426 | $1,581,615 | $350,550 | — | — | $3,375,591 |
| 2022 | $589,680 | — | $1,434,240 | $3,446,799 | $353,808 | — | $12,200 | $5,836,727 |
| 2021 | $566,500 | — | $1,758,786 | $4,130,564 | $387,486 | — | $11,600 | $6,854,936 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.