Insider at

04

Insider transactions

05
1 buys (P) 4 sells (S) Net: $-387,825 + 46 non-open-market transactions below Avg return of open purchases vs close of 2026-10-23: -54.6% 12 months to the week close of 2026-10-23

Price change vs the latest weekly close (updated to the current quote in your browser when available), split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

46 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
March 4, 2026 AKBA P 69,270 $1.25 $86,588 3,367,064 Direct +2.10% Acquired -54.6% (price as of )
Feb. 2, 2026 AKBA S 10b5-1 46,660 $1.39 $64,857 3,417,189 Direct -1.35% Disposed -59.2% (price as of )
Feb. 2, 2026 AKBA S 10b5-1 96,065 $1.39 $133,530 3,321,124 Direct -2.81% Disposed -59.2% (price as of )
Feb. 2, 2026 AKBA S 10b5-1 114,891 $1.39 $159,698 3,206,233 Direct -3.46% Disposed -59.2% (price as of )
Feb. 2, 2026 AKBA S 10b5-1 83,689 $1.39 $116,328 3,297,794 Direct -2.47% Disposed -59.2% (price as of )
March 3, 2025 AKBA S 10b5-1 46,409 $1.83 $84,928 2,557,921 Direct -1.78% Disposed -69.0% (price as of )
Feb. 3, 2025 AKBA S 10b5-1 46,268 $2.10 $97,163 2,702,312 Direct -1.68% Disposed -73.0% (price as of )
Feb. 3, 2025 AKBA S 10b5-1 97,982 $2.10 $205,762 2,604,330 Direct -3.63% Disposed -73.0% (price as of )
Feb. 29, 2024 AKBA S 46,570 $1.58 $73,581 2,044,580 Direct -2.23% Disposed -64.1% (price as of )
Feb. 27, 2024 AKBA S 37,733 $1.52 $57,354 2,091,150 Direct -1.77% Disposed -62.7% (price as of )
Feb. 1, 2024 AKBA S 46,489 $1.68 $78,102 2,128,883 Direct -2.14% Disposed -66.3% (price as of )
March 1, 2023 AKBA S 38,259 $0.88 $33,668 1,622,481 Direct -2.30% Disposed -35.6% (price as of )
March 1, 2023 AKBA S 47,239 $0.88 $41,570 1,575,242 Direct -2.91% Disposed -35.6% (price as of )
March 1, 2023 AKBA S 6,370 $0.88 $5,606 1,568,872 Direct -0.40% Disposed -35.6% (price as of )
Feb. 27, 2023 AKBA S 38,632 $0.81 $31,292 1,660,740 Direct -2.27% Disposed -30.0% (price as of )
March 1, 2022 AKBA S 24,811 $2.17 $53,840 1,432,409 Direct -1.70% Disposed -73.9% (price as of )
March 1, 2022 AKBA S 25,031 $2.17 $54,317 1,407,378 Direct -1.75% Disposed -73.9% (price as of )
March 1, 2022 AKBA S 4,131 $2.17 $8,964 1,403,247 Direct -0.29% Disposed -73.9% (price as of )
Feb. 28, 2022 AKBA S 25,053 $2.15 $53,864 1,164,095 Direct -2.11% Disposed -73.6% (price as of )
April 1, 2021 AKBA S 4,109 $3.40 $13,971 1,152,153 Direct -0.36% Disposed -83.3% (price as of )
March 1, 2021 AKBA S 25,316 $3.40 $86,074 1,141,416 Direct -2.17% Disposed -83.3% (price as of )
March 1, 2021 AKBA S 24,674 $3.40 $83,892 1,116,742 Direct -2.16% Disposed -83.3% (price as of )
Nov. 20, 2019 AKBA P 50,000 $3.44 $172,000 887,732 Direct +5.97% Acquired -83.5% (price as of )
Dec. 29, 2014 AKBA P 10b5-1 1,000 $11.57 $11,570 48,350 Direct +2.11% Acquired -95.1% (price as of )
Dec. 22, 2014 AKBA P 10b5-1 1,000 $11.92 $11,920 47,350 Direct +2.16% Acquired -95.2% (price as of )
Dec. 15, 2014 AKBA P 10b5-1 1,000 $11.34 $11,340 46,350 Direct +2.21% Acquired -95.0% (price as of )
Nov. 12, 2014 AKBA P 1,000 $10.30 $10,300 45,350 Direct +2.25% Acquired -94.5% (price as of )
March 25, 2014 AKBA P 13,850 $17.00 $235,450 13,850 Direct · Acquired -96.7% (price as of )

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Aug. 6, 2026 AKBA Stock Option (Right to buy) Common Stock (350,000) $0.63 Jan. 31, 2033 350,000 Disposed
Jan. 30, 2026 AKBA Stock Option (Right to buy) Common Stock (1,115,000) $1.41 Jan. 30, 2036 1,115,000 Acquired
Jan. 31, 2025 AKBA Performance Stock Units Common Stock (350,500) · Jan. 31, 2027 350,500 Acquired
Jan. 31, 2025 AKBA Stock Option (Right to buy) Common Stock (1,051,400) $2.24 Jan. 31, 2035 1,051,400 Acquired
Jan. 31, 2024 AKBA Stock Option (Right to buy) Common Stock (905,200) $1.68 Jan. 31, 2034 905,200 Acquired
Jan. 31, 2023 AKBA Stock Appreciation Right Common Stock (635,313) $0.63 Jan. 31, 2033 635,313 Acquired
Jan. 31, 2023 AKBA Stock Option (Right to buy) Common Stock (875,000) $0.63 Jan. 31, 2033 875,000 Acquired
Feb. 28, 2022 AKBA Employee Stock Option (Right to buy) Common Stock (739,700) $2.16 Feb. 28, 2032 739,700 Acquired
Feb. 26, 2021 AKBA Employee Stock Option (Right to buy) Common Stock (403,600) $3.46 Feb. 26, 2031 403,600 Acquired
Feb. 28, 2020 AKBA Stock Option (Right to buy) Common Stock (403,600) $8.87 Feb. 28, 2030 403,600 Acquired
June 3, 2019 AKBA Employee Stock Option (Right to buy) Common Stock (287,000) $0.47 Sept. 16, 2023 287,000 Disposed
Feb. 28, 2019 AKBA Employee Stock Option (Right to buy) Common Stock (350,000) $7.28 Feb. 28, 2029 350,000 Acquired
July 11, 2018 AKBA Employee Stock Option (Right to buy) Common Stock (100,000) $0.47 Sept. 16, 2023 100,000 Disposed
Feb. 28, 2018 AKBA Employee Stock Option (Right to buy) Common Stock (126,300) $14.30 Feb. 28, 2028 126,300 Acquired
Feb. 21, 2017 AKBA Stock Option (Right to buy) Common Stock (190,000) $0.00 Feb. 21, 2027 190,000 Acquired
Jan. 19, 2017 AKBA Stock Option (Right to buy) Common Stock (20,000) $0.47 Sept. 16, 2023 20,000 Disposed
Feb. 22, 2016 AKBA Stock Option (Right to Buy) Common Stock (190,550) $7.70 Feb. 22, 2026 190,550 Disposed
Jan. 15, 2016 AKBA Stock Option (Right to Buy) Common Stock (25,000) $0.47 Sept. 16, 2023 25,000 Disposed
May 26, 2015 AKBA Stock Option (Right to Buy) Common Stock (50,000) $0.47 Sept. 16, 2023 50,000 Disposed
March 9, 2015 AKBA Stock Option (Right to Buy) Common Stock (100,000) $0.47 Sept. 16, 2023 100,000 Disposed
March 6, 2015 AKBA Stock Option (Right to Buy) Common Stock (150,000) $11.15 March 6, 2025 150,000 Acquired
Nov. 11, 2014 AKBA Stock Option (right to buy) Common Stock (30,500) $0.47 Sept. 16, 2023 30,500 Disposed
May 14, 2014 AKBA Stock Option (Right to Buy) Common Stock (46,667) $22.80 May 14, 2024 46,667 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
March 19, 2014 AKBA Stock Option (Right to Buy)→ Common Stock (612,500) 612,500 Direct

Holdings reported on Form 4 80 reported holdings

08

Positions listed on each Form 4 without a transaction in that filing (Table I and II holdings), newest filing first.

DateTickerSecuritySharesExercise priceExpirationOwnership
Aug. 10, 2026 AKBA Common Stock 159,928 · · Indirect
March 5, 2026 AKBA Common Stock 159,928 · · Indirect
Feb. 4, 2026 AKBA Common Stock 159,928 · · Indirect
Feb. 3, 2026 AKBA Common Stock 159,928 · · Indirect
March 4, 2025 AKBA Common Stock 100,000 · · Indirect
March 4, 2025 AKBA Common Stock 59,928 · · Indirect
March 4, 2025 AKBA Common Stock 100,000 · · Indirect
March 4, 2025 AKBA Common Stock 59,928 · · Indirect
Feb. 4, 2025 AKBA Common Stock 100,000 · · Indirect
Feb. 4, 2025 AKBA Common Stock 59,928 · · Indirect
Feb. 4, 2025 AKBA Common Stock 100,000 · · Indirect
Feb. 4, 2025 AKBA Common Stock 59,928 · · Indirect
March 1, 2024 AKBA Common Stock 100,000 · · Indirect
March 1, 2024 AKBA Common Stock 59,928 · · Indirect
March 1, 2024 AKBA Common Stock 100,000 · · Indirect
March 1, 2024 AKBA Common Stock 59,928 · · Indirect
Feb. 29, 2024 AKBA Common Stock 100,000 · · Indirect
Feb. 29, 2024 AKBA Common Stock 59,928 · · Indirect
Feb. 29, 2024 AKBA Common Stock 100,000 · · Indirect
Feb. 29, 2024 AKBA Common Stock 59,928 · · Indirect
Feb. 2, 2024 AKBA Common Stock 100,000 · · Indirect
Feb. 2, 2024 AKBA Common Stock 59,928 · · Indirect
Feb. 2, 2024 AKBA Common Stock 100,000 · · Indirect
Feb. 2, 2024 AKBA Common Stock 59,928 · · Indirect
March 3, 2023 AKBA Common Stock 100,000 · · Indirect
March 3, 2023 AKBA Common Stock 59,928 · · Indirect
March 3, 2023 AKBA Common Stock 100,000 · · Indirect
March 3, 2023 AKBA Common Stock 59,928 · · Indirect
March 1, 2023 AKBA Common Stock 100,000 · · Indirect
March 1, 2023 AKBA Common Stock 59,928 · · Indirect
March 1, 2023 AKBA Common Stock 100,000 · · Indirect
March 1, 2023 AKBA Common Stock 59,928 · · Indirect
Feb. 2, 2023 AKBA Common Stock 59,928 · · Indirect
Feb. 2, 2023 AKBA Common Stock 100,000 · · Indirect
Feb. 2, 2023 AKBA Common Stock 59,928 · · Indirect
Feb. 2, 2023 AKBA Common Stock 100,000 · · Indirect
March 2, 2022 AKBA Common Stock 59,928 · · Indirect
March 2, 2022 AKBA Common Stock 100,000 · · Indirect
March 2, 2022 AKBA Common Stock 59,928 · · Indirect
March 2, 2022 AKBA Common Stock 100,000 · · Indirect
April 1, 2021 AKBA Common Stock 59,928 · · Indirect
April 1, 2021 AKBA Common Stock 100,000 · · Indirect
April 1, 2021 AKBA Common Stock 31,047 · · Indirect
April 1, 2021 AKBA Common Stock 59,928 · · Indirect
April 1, 2021 AKBA Common Stock 100,000 · · Indirect
April 1, 2021 AKBA Common Stock 31,047 · · Indirect
March 18, 2021 AKBA Common Stock 100,000 · · Indirect
March 18, 2021 AKBA Common Stock 100,000 · · Indirect
March 18, 2021 AKBA Common Stock 59,928 · · Indirect
March 18, 2021 AKBA Common Stock 59,928 · · Indirect
March 18, 2021 AKBA Common Stock 31,047 · · Indirect
March 18, 2021 AKBA Common Stock 31,047 · · Indirect
March 2, 2021 AKBA Common Stock 59,928 · · Indirect
March 2, 2021 AKBA Common Stock 100,000 · · Indirect
March 2, 2021 AKBA Common Stock 31,047 · · Indirect
March 2, 2021 AKBA Common Stock 59,928 · · Indirect
March 2, 2021 AKBA Common Stock 100,000 · · Indirect
March 2, 2021 AKBA Common Stock 31,047 · · Indirect
March 2, 2020 AKBA Common Stock 59,928 · · Indirect
March 2, 2020 AKBA Common Stock 59,928 · · Indirect
March 2, 2020 AKBA Common Stock 31,047 · · Indirect
March 2, 2020 AKBA Common Stock 31,047 · · Indirect
March 2, 2020 AKBA Common Stock 50,000 · · Indirect
March 2, 2020 AKBA Common Stock 50,000 · · Indirect
Nov. 21, 2019 AKBA Common Stock 59,928 · · Indirect
Nov. 21, 2019 AKBA Common Stock 31,047 · · Indirect
Nov. 21, 2019 AKBA Common Stock 59,928 · · Indirect
Nov. 21, 2019 AKBA Common Stock 31,047 · · Indirect
June 5, 2019 AKBA Common Stock 31,047 · · Indirect
June 5, 2019 AKBA Common Stock 59,928 · · Indirect
June 5, 2019 AKBA Common Stock 31,047 · · Indirect
June 5, 2019 AKBA Common Stock 59,928 · · Indirect
March 5, 2019 AKBA Common Stock 31,047 · · Indirect
March 5, 2019 AKBA Common Stock 27,353 · · Indirect
March 5, 2019 AKBA Common Stock 31,047 · · Indirect
March 5, 2019 AKBA Common Stock 27,353 · · Indirect
Dec. 13, 2018Amended by 0001562180-22-001654 AKBA Common Stock 31,047 · · Indirect
Dec. 13, 2018Amended by 0001562180-22-001654 AKBA Common Stock 31,047 · · Indirect
Dec. 13, 2018Amended by 0001562180-22-001654 AKBA Common Stock 27,353 · · Indirect
Dec. 13, 2018Amended by 0001562180-22-001654 AKBA Common Stock 27,353 · · Indirect

Annual statements (Form 5) Transactions and holdings reported once a year on SEC Form 5 — exempt or late-reported trades, gifts and small acquisitions.

09

Transactions (1)

DateTickerSecurityCodeShares PriceValueOwned afterExercise priceExpirationA/D
July 28, 2016 AKBA Common Stock G 116,800 · · 198,280 · · ·

Holdings (8)

DateTickerSecuritySharesExercise priceExpirationOwnership
Feb. 14, 2020 AKBA Common Stock · · · Direct
Feb. 14, 2020 AKBA Common Stock 50,000 · · Indirect
Feb. 14, 2020 AKBA Common Stock 50,000 · · Indirect
Feb. 14, 2020 AKBA Common Stock 31,047 · · Indirect
Feb. 14, 2020 AKBA Common Stock 31,047 · · Indirect
Feb. 14, 2020 AKBA Common Stock 59,928 · · Indirect
Feb. 14, 2020 AKBA Common Stock 59,928 · · Indirect
Feb. 10, 2017 AKBA Common Stock · · · Indirect

Compensation (DEF 14A)

10

Matched by name from proxy statements (DEF 14A) — verify against the filing.

AKBA

President & CEO
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2025 $864,010 · · · $580,973 · $18,220 $5,652,339
2024 $833,966 · · · $1,033,200 · $64,170 $4,260,114
2023 $795,723 · · · $997,193 · $17,220 $2,775,123

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.