SEC Filings for MESA LABORATORIES INC /CO/ (MLAB)

Last updated: 2026-05-20 10:10 UTC | Total filings: 1010

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4/A May 19, 2026 PRIMARY DOCUMENT View Document
4 April 24, 2026 PRIMARY DOCUMENT View Document
3 April 24, 2026 PRIMARY DOCUMENT View Document
SCHEDULE 13G/A April 15, 2026 - View Document
4 April 2, 2026 PRIMARY DOCUMENT View Document
SCHEDULE 13G/A March 27, 2026 - View Document
8-K March 23, 2026 FORM 8-K View Document
SCHEDULE 13G March 13, 2026 - View Document
4 March 10, 2026 PRIMARY DOCUMENT View Document
4 March 10, 2026 PRIMARY DOCUMENT View Document
4 March 10, 2026 PRIMARY DOCUMENT View Document
8-K March 9, 2026 FORM 8-K View Document
8-K Feb. 3, 2026 FORM 8-K View Document
10-Q Feb. 3, 2026 FORM 10-Q View Document
4 Dec. 5, 2025 PRIMARY DOCUMENT View Document
10-Q Nov. 6, 2025 FORM 10-Q View Document
8-K Nov. 6, 2025 FORM 8-K View Document
SCHEDULE 13G/A Oct. 31, 2025 - View Document
4 Oct. 28, 2025 PRIMARY DOCUMENT View Document
8-K Aug. 25, 2025 FORM 8-K View Document
8-K Aug. 18, 2025 FORM 8-K View Document
4 Aug. 18, 2025 PRIMARY DOCUMENT View Document
4 Aug. 18, 2025 PRIMARY DOCUMENT View Document
4 Aug. 18, 2025 PRIMARY DOCUMENT View Document
4 Aug. 18, 2025 PRIMARY DOCUMENT View Document
4 Aug. 18, 2025 PRIMARY DOCUMENT View Document
4 Aug. 18, 2025 PRIMARY DOCUMENT View Document
10-Q Aug. 5, 2025 FORM 10-Q View Document
8-K Aug. 5, 2025 FORM 8-K View Document
DEF 14A July 11, 2025 FORM DEF 14A View Document
4 June 25, 2025 PRIMARY DOCUMENT View Document
4 June 25, 2025 PRIMARY DOCUMENT View Document
4 June 24, 2025 PRIMARY DOCUMENT View Document
4 June 20, 2025 PRIMARY DOCUMENT View Document
4 June 20, 2025 PRIMARY DOCUMENT View Document
4 June 20, 2025 PRIMARY DOCUMENT View Document
4 June 18, 2025 PRIMARY DOCUMENT View Document
4 June 18, 2025 PRIMARY DOCUMENT View Document
4 June 18, 2025 PRIMARY DOCUMENT View Document
4 June 18, 2025 PRIMARY DOCUMENT View Document
4 June 18, 2025 PRIMARY DOCUMENT View Document
4 June 18, 2025 PRIMARY DOCUMENT View Document
144 June 16, 2025 - View Document
144 June 16, 2025 - View Document
144 June 16, 2025 - View Document
4 June 11, 2025 PRIMARY DOCUMENT View Document
4 June 11, 2025 PRIMARY DOCUMENT View Document
4 June 11, 2025 PRIMARY DOCUMENT View Document
8-K June 6, 2025 FORM 8-K View Document
10-K May 28, 2025 FORM 10-K View Document
8-K May 28, 2025 FORM 8-K View Document
SCHEDULE 13G/A April 30, 2025 - View Document
4 March 24, 2025 PRIMARY DOCUMENT View Document
144 March 19, 2025 - View Document
8-K Feb. 4, 2025 FORM 8-K View Document
10-Q Feb. 4, 2025 FORM 10-Q View Document
SCHEDULE 13G/A Jan. 28, 2025 - View Document
SCHEDULE 13G/A Jan. 10, 2025 - View Document
4 Nov. 25, 2024 PRIMARY DOCUMENT View Document
8-K Nov. 7, 2024 FORM 8-K View Document
10-Q Nov. 7, 2024 FORM 10-Q View Document
144 Oct. 29, 2024 - View Document
4 Oct. 29, 2024 PRIMARY DOCUMENT View Document
144 Oct. 28, 2024 - View Document
SC 13G/A Oct. 15, 2024 - View Document
4 Sept. 16, 2024 PRIMARY DOCUMENT View Document
144 Sept. 13, 2024 - View Document
8-K Sept. 11, 2024 FORM 8-K View Document
4 Sept. 6, 2024 PRIMARY DOCUMENT View Document
4 Sept. 6, 2024 PRIMARY DOCUMENT View Document
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4 Sept. 6, 2024 PRIMARY DOCUMENT View Document
4 Sept. 6, 2024 PRIMARY DOCUMENT View Document
8-K Aug. 30, 2024 FORM 8-K View Document
4 Aug. 19, 2024 PRIMARY DOCUMENT View Document
4 Aug. 19, 2024 PRIMARY DOCUMENT View Document
4 Aug. 19, 2024 PRIMARY DOCUMENT View Document
4 Aug. 19, 2024 PRIMARY DOCUMENT View Document
4 Aug. 19, 2024 PRIMARY DOCUMENT View Document
4 Aug. 19, 2024 PRIMARY DOCUMENT View Document
10-Q Aug. 5, 2024 FORM 10-Q View Document
8-K Aug. 5, 2024 FORM 8-K View Document
DEF 14A July 19, 2024 FORM DEF 14A View Document
10-K June 28, 2024 FORM 10-K View Document
4 June 21, 2024 PRIMARY DOCUMENT View Document
4 June 21, 2024 PRIMARY DOCUMENT View Document
4 June 21, 2024 PRIMARY DOCUMENT View Document
4 June 17, 2024 PRIMARY DOCUMENT View Document
4 June 17, 2024 PRIMARY DOCUMENT View Document
4 June 17, 2024 PRIMARY DOCUMENT View Document
NT 10-K June 14, 2024 FORM NT 10-K View Document
8-K June 5, 2024 FORM 8-K View Document
8-K April 8, 2024 FORM 8-K View Document
4 April 3, 2024 PRIMARY DOCUMENT View Document
4 April 3, 2024 PRIMARY DOCUMENT View Document
4 April 3, 2024 PRIMARY DOCUMENT View Document
4 April 3, 2024 PRIMARY DOCUMENT View Document
8-K April 2, 2024 FORM 8-K View Document
UPLOAD April 2, 2024 - View Document
4 March 26, 2024 PRIMARY DOCUMENT View Document
CORRESP March 25, 2024 - View Document
UPLOAD March 20, 2024 - View Document
CORRESP March 15, 2024 - View Document
UPLOAD March 6, 2024 - View Document
3 Feb. 16, 2024 PRIMARY DOCUMENT View Document
4 Feb. 16, 2024 PRIMARY DOCUMENT View Document
SC 13G/A Feb. 13, 2024 SCHEDULE 13G/A View Document
8-K Feb. 5, 2024 FORM 8-K View Document
10-Q Feb. 5, 2024 FORM 10-Q View Document
SC 13G/A Jan. 23, 2024 - View Document
SC 13G/A Jan. 22, 2024 - View Document
8-K Jan. 8, 2024 FORM 8-K View Document
SC 13G/A Jan. 5, 2024 CONESTOGA CAPITAL ADVISORS View Document
4 Dec. 19, 2023 PRIMARY DOCUMENT View Document
144 Dec. 15, 2023 - View Document
4 Nov. 14, 2023 PRIMARY DOCUMENT View Document
8-K Nov. 6, 2023 FORM 8-K View Document
10-Q Nov. 6, 2023 FORM 10-Q View Document
8-K Oct. 18, 2023 FORM 8-K View Document
8-K Oct. 10, 2023 FORM 8-K View Document
4 Sept. 19, 2023 PRIMARY DOCUMENT View Document
4 Sept. 14, 2023 PRIMARY DOCUMENT View Document
144 Sept. 13, 2023 - View Document
4 Sept. 6, 2023 PRIMARY DOCUMENT View Document
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144 Sept. 1, 2023 - View Document
8-K Aug. 30, 2023 FORM 8-K View Document
S-8 Aug. 30, 2023 FORM S-8 View Document
8-K Aug. 25, 2023 FORM 8-K View Document
4 Aug. 16, 2023 PRIMARY DOCUMENT View Document
4 Aug. 16, 2023 PRIMARY DOCUMENT View Document
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4 Aug. 16, 2023 PRIMARY DOCUMENT View Document
4 Aug. 16, 2023 PRIMARY DOCUMENT View Document
4 Aug. 16, 2023 PRIMARY DOCUMENT View Document
8-K Aug. 3, 2023 FORM 8-K View Document
10-Q Aug. 3, 2023 FORM 10-Q View Document
PX14A6G July 31, 2023 - View Document
DEF 14A July 14, 2023 FORM DEF 14A View Document
PRE 14A July 3, 2023 FORM PRE 14A View Document
4 June 26, 2023 PRIMARY DOCUMENT View Document
4 June 26, 2023 PRIMARY DOCUMENT View Document
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4 June 16, 2023 PRIMARY DOCUMENT View Document
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4 June 16, 2023 PRIMARY DOCUMENT View Document
4 June 16, 2023 PRIMARY DOCUMENT View Document
10-K May 30, 2023 FORM 10-K View Document
8-K May 25, 2023 FORM 8-K View Document
8-K May 8, 2023 FORM 8-K View Document
4 March 27, 2023 PRIMARY DOCUMENT View Document
144 March 24, 2023 - View Document
144 March 22, 2023 - View Document
4 March 16, 2023 PRIMARY DOCUMENT View Document
144 March 15, 2023 - View Document
8-K March 13, 2023 FORM 8-K View Document
144 March 9, 2023 - View Document
4 March 9, 2023 PRIMARY DOCUMENT View Document
4 Feb. 9, 2023 PRIMARY DOCUMENT View Document
SC 13G/A Feb. 9, 2023 SCHEDULE 13G/A View Document
4 Feb. 6, 2023 PRIMARY DOCUMENT View Document
10-Q Feb. 6, 2023 FORM 10-Q View Document
8-K Feb. 6, 2023 FORM 8-K View Document
SC 13G/A Jan. 27, 2023 - View Document
SC 13G/A Jan. 26, 2023 - View Document
4 Jan. 25, 2023 PRIMARY DOCUMENT View Document
SC 13G/A Jan. 20, 2023 - View Document
SC 13G/A Jan. 18, 2023 CONESTOGA CAPITAL ADVISORS View Document
4 Jan. 17, 2023 PRIMARY DOCUMENT View Document
4/A Jan. 17, 2023 PRIMARY DOCUMENT View Document
8-K/A Jan. 4, 2023 FORM 8-K/A View Document
4 Dec. 14, 2022 PRIMARY DOCUMENT View Document
4 Dec. 9, 2022 PRIMARY DOCUMENT View Document
4 Nov. 29, 2022 PRIMARY DOCUMENT View Document
8-K Nov. 21, 2022 FORM 8-K View Document
4 Nov. 21, 2022 PRIMARY DOCUMENT View Document
SC 13G/A Nov. 18, 2022 CONESTOGA CAPITAL ADVISORS View Document
8-K/A Nov. 4, 2022 FORM 8-K/A View Document
8-K Nov. 4, 2022 FORM 8-K View Document
10-Q Nov. 3, 2022 FORM 10-Q View Document
8-K Nov. 3, 2022 FORM 8-K View Document
4 Sept. 2, 2022 PRIMARY DOCUMENT View Document
4 Sept. 2, 2022 PRIMARY DOCUMENT View Document
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4 Sept. 2, 2022 PRIMARY DOCUMENT View Document
8-K Aug. 26, 2022 FORM 8-K View Document
DEFA14A Aug. 23, 2022 FORM DEFA14A View Document
DEFA14A Aug. 22, 2022 FORM DEFA14A View Document
4 Aug. 19, 2022 PRIMARY DOCUMENT View Document
4 Aug. 18, 2022 PRIMARY DOCUMENT View Document
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4 Aug. 17, 2022 PRIMARY DOCUMENT View Document
4/A Aug. 17, 2022 PRIMARY DOCUMENT View Document
4 Aug. 16, 2022 PRIMARY DOCUMENT View Document
4 Aug. 9, 2022 FORM 4 View Document
8-K Aug. 4, 2022 FORM 8-K View Document
10-Q Aug. 4, 2022 FORM 10-Q View Document
DEF 14A July 14, 2022 FORM DEF 14A View Document
3 July 11, 2022 PRIMARY DOCUMENT View Document
4 July 6, 2022 PRIMARY DOCUMENT View Document
8-K June 27, 2022 FORM 8-K View Document
4 June 22, 2022 PRIMARY DOCUMENT View Document
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4 June 13, 2022 PRIMARY DOCUMENT View Document
4/A June 13, 2022 PRIMARY DOCUMENT View Document
SD May 31, 2022 FORM SD View Document
10-K May 31, 2022 FORM 10-K View Document
8-K May 31, 2022 FORM 8-K View Document
4 April 22, 2022 PRIMARY DOCUMENT View Document
8-K April 11, 2022 FORM 8-K View Document
8-K April 5, 2022 FORM 8-K View Document
424B5 April 5, 2022 424B5 View Document
S-3ASR April 5, 2022 S-3ASR View Document
4 March 31, 2022 PRIMARY DOCUMENT View Document
8-K March 30, 2022 FORM 8-K View Document
4 March 25, 2022 PRIMARY DOCUMENT View Document
4 Feb. 22, 2022 PRIMARY DOCUMENT View Document
4 Feb. 16, 2022 PRIMARY DOCUMENT View Document
4 Feb. 15, 2022 PRIMARY DOCUMENT View Document
SC 13G/A Feb. 14, 2022 - View Document
SC 13G/A Feb. 10, 2022 SCHEDULE 13G/A View Document
8-K Feb. 3, 2022 FORM 8-K View Document
10-Q Feb. 3, 2022 FORM 10-Q View Document
SC 13G/A Jan. 27, 2022 - View Document
SC 13G/A Jan. 25, 2022 - View Document
SC 13G/A Jan. 21, 2022 - View Document
SC 13G/A Jan. 10, 2022 CONESTOGA CAPITAL ADVISORS View Document
4 Jan. 4, 2022 PRIMARY DOCUMENT View Document
8-K Dec. 23, 2021 FORM 8-K View Document
8-K/A Dec. 22, 2021 FORM 8-K/A View Document
4 Dec. 15, 2021 PRIMARY DOCUMENT View Document
4 Dec. 10, 2021 PRIMARY DOCUMENT View Document
4 Dec. 6, 2021 PRIMARY DOCUMENT View Document
4 Nov. 19, 2021 FORM 4 View Document
4 Nov. 18, 2021 PRIMARY DOCUMENT View Document
4 Nov. 16, 2021 PRIMARY DOCUMENT View Document
4 Nov. 12, 2021 PRIMARY DOCUMENT View Document
4 Nov. 9, 2021 PRIMARY DOCUMENT View Document
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3 Nov. 8, 2021 PRIMARY DOCUMENT View Document
10-Q Nov. 4, 2021 FORM 10-Q View Document
8-K Nov. 4, 2021 FORM 8-K View Document
8-K Oct. 29, 2021 FORM 8-K View Document
4 Oct. 25, 2021 PRIMARY DOCUMENT View Document
8-K Oct. 21, 2021 FORM 8-K View Document
4 Oct. 4, 2021 PRIMARY DOCUMENT View Document
8-K Sept. 29, 2021 FORM 8-K View Document
8-K Sept. 14, 2021 FORM 8-K View Document
4 Sept. 10, 2021 PRIMARY DOCUMENT View Document
8-K Sept. 3, 2021 FORM 8-K View Document
4 Sept. 1, 2021 PRIMARY DOCUMENT View Document
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S-8 Aug. 30, 2021 FORM S-8 View Document
8-K Aug. 27, 2021 FORM 8-K View Document
4 Aug. 19, 2021 PRIMARY DOCUMENT View Document
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8-K Aug. 5, 2021 FORM 8-K View Document
10-Q Aug. 5, 2021 FORM 10-Q View Document
4 Aug. 2, 2021 PRIMARY DOCUMENT View Document
4 July 19, 2021 PRIMARY DOCUMENT View Document
DEF 14A July 16, 2021 FORM DEF 14A View Document
4 July 13, 2021 PRIMARY DOCUMENT View Document
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10-K June 1, 2021 FORM 10-K View Document
8-K June 1, 2021 FORM 8-K View Document
SD May 28, 2021 FORM SD View Document
4 May 18, 2021 PRIMARY DOCUMENT View Document
4 May 18, 2021 PRIMARY DOCUMENT View Document
4 May 7, 2021 PRIMARY DOCUMENT View Document
4 May 5, 2021 PRIMARY DOCUMENT View Document
4 April 19, 2021 PRIMARY DOCUMENT View Document
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4/A April 12, 2021 PRIMARY DOCUMENT View Document
4 April 5, 2021 PRIMARY DOCUMENT View Document
4 March 16, 2021 PRIMARY DOCUMENT View Document
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4 March 11, 2021 PRIMARY DOCUMENT View Document
8-K March 8, 2021 FORM 8-K View Document
4 March 2, 2021 PRIMARY DOCUMENT View Document
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4 Feb. 17, 2021 PRIMARY DOCUMENT View Document
SC 13G/A Feb. 16, 2021 - View Document
4 Feb. 10, 2021 PRIMARY DOCUMENT View Document
SC 13G/A Feb. 10, 2021 SCHEDULE 13G/A View Document
10-Q Feb. 3, 2021 FORM 10-Q View Document
8-K Feb. 3, 2021 FORM 8-K View Document
4 Feb. 1, 2021 PRIMARY DOCUMENT View Document
SC 13G/A Jan. 27, 2021 - View Document
SC 13G/A Jan. 26, 2021 - View Document
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SC 13G/A Jan. 6, 2021 CONESTOGA CAPITAL ADVISORS View Document
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4 Nov. 13, 2020 FORM 4 View Document
4 Nov. 12, 2020 FORM 4 View Document
4 Nov. 10, 2020 PRIMARY DOCUMENT View Document
10-Q Nov. 5, 2020 FORM 10-Q View Document
8-K Nov. 5, 2020 FORM 8-K View Document
4 Oct. 9, 2020 PRIMARY DOCUMENT View Document
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4 Oct. 6, 2020 PRIMARY DOCUMENT View Document
4 Oct. 5, 2020 FORM 4 View Document
8-K Oct. 1, 2020 FORM 8-K View Document
4 Sept. 17, 2020 FORM 4 View Document
4 Sept. 8, 2020 PRIMARY DOCUMENT View Document
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8-K Aug. 28, 2020 FORM 8-K View Document
DEFA14A Aug. 20, 2020 FORM DEFA14A View Document
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4 Aug. 13, 2020 FORM 4 View Document
4 Aug. 13, 2020 FORM 4 View Document
10-Q Aug. 6, 2020 FORM 10-Q View Document
8-K Aug. 6, 2020 FORM 8-K View Document
DEF 14A July 17, 2020 FORM DEF 14A View Document
4 June 17, 2020 PRIMARY DOCUMENT View Document
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8-K June 12, 2020 FORM 8-K View Document
424B5 June 10, 2020 424B5 View Document
424B5 June 8, 2020 424B5 View Document
8-K June 4, 2020 FORM 8-K View Document
3 June 2, 2020 FORM 3 View Document
8-K June 1, 2020 FORM 8-K View Document
8-K June 1, 2020 FORM 8-K View Document
10-K June 1, 2020 FORM 10-K View Document
SD May 29, 2020 FORM SD View Document
8-K May 15, 2020 FORM 8-K View Document
5 April 10, 2020 PRIMARY DOCUMENT View Document
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8-K April 2, 2020 FORM 8-K View Document
8-K March 30, 2020 FORM 8-K View Document
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SC 13G/A Feb. 14, 2020 - View Document
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SC 13G Feb. 11, 2020 SCHEDULE 13G View Document
8-K Feb. 10, 2020 FORM 8-K View Document
10-Q Feb. 10, 2020 FORM 10-Q View Document
SC 13G/A Feb. 4, 2020 - View Document
SC 13G/A Jan. 23, 2020 - View Document
SC 13G/A Jan. 17, 2020 CONESTOGA CAPITAL ADVISORS View Document
8-K/A Jan. 15, 2020 FORM 8-K/A View Document
5 Dec. 30, 2019 PRIMARY DOCUMENT View Document
4/A Dec. 30, 2019 PRIMARY DOCUMENT View Document
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UPLOAD Dec. 16, 2019 - View Document
CORRESP Dec. 13, 2019 - View Document
10-Q/A Dec. 13, 2019 FORM 10-Q/A View Document
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10-K/A Dec. 13, 2019 FORM 10-K/A View Document
UPLOAD Dec. 3, 2019 - View Document
8-K Dec. 2, 2019 FORM 8-K View Document
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10-Q Nov. 6, 2019 FORM 10-Q View Document
8-K Nov. 6, 2019 FORM 8-K View Document
8-K Nov. 5, 2019 FORM 8-K View Document
8-K Nov. 4, 2019 FORM 8-K View Document
DEFA14A Oct. 4, 2019 FORM DEFA14A View Document
DEF 14A Sept. 25, 2019 FORM DEF 14A View Document
4 Sept. 19, 2019 PRIMARY DOCUMENT View Document
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8-K Aug. 14, 2019 FORM 8-K View Document
8-K Aug. 12, 2019 8-K View Document
424B5 Aug. 8, 2019 424B5 View Document
424B5 Aug. 8, 2019 424B5 View Document
FWP Aug. 8, 2019 FWP View Document
424B5 Aug. 6, 2019 424B5 View Document
424B5 Aug. 6, 2019 424B5 View Document
S-3ASR Aug. 6, 2019 S-3ASR View Document
8-K/A Aug. 5, 2019 FORM 8-K/A View Document
10-Q July 30, 2019 FORM 10-Q View Document
8-K July 30, 2019 FORM 8-K View Document
10-K/A July 18, 2019 FORM 10-K/A View Document
SC 13G/A July 10, 2019 - View Document
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3/A June 18, 2019 PRIMARY DOCUMENT View Document
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3/A June 17, 2019 PRIMARY DOCUMENT View Document
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3/A June 17, 2019 PRIMARY DOCUMENT View Document
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8-K June 5, 2019 FORM 8-K View Document
8-K June 3, 2019 FORM 8-K View Document
10-K June 3, 2019 FORM 10-K View Document
SD May 30, 2019 FORM SD View Document
8-K May 10, 2019 FORM 8-K View Document
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8-K March 6, 2019 FORM 8-K View Document
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SC 13G Feb. 14, 2019 - View Document
SC 13G/A Feb. 13, 2019 - View Document
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