Margo Heath-Chiozzi

Insider

First SEC filing: Oct. 3, 2017 · Latest: Oct. 3, 2017

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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.

Insider at

CLDX selling June 3, 2024

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 24 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

24 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 25, 2026	CLDX	A	95,000	—	—	95,000 Direct	—	Acquired	(price as of 2026-08-20)
June 3, 2024	CLDX	M	6,289	$9.02	$56,727	13,383 Direct	+88.65%	Acquired	351.6% (price as of 2026-08-20)
June 3, 2024	CLDX	M	58,369	$10.38	$605,870	71,752 Direct	+436.14%	Acquired	292.5% (price as of 2026-08-20)
June 3, 2024	CLDX	S	58,369	$33.65	$1,964,117	13,383 Direct	-81.35%	Disposed	21.1% (price as of 2026-08-20)
June 3, 2024	CLDX	M	6,289	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
June 3, 2024	CLDX	M	58,369	—	—	23,023 Direct	-71.71%	Disposed	(price as of 2026-08-20)
May 30, 2024	CLDX	M	29,068	$2.78	$80,809	41,162 Direct	+240.35%	Acquired	1365.4% (price as of 2026-08-20)
May 30, 2024	CLDX	M	2,043	$9.02	$18,428	43,205 Direct	+4.96%	Acquired	351.6% (price as of 2026-08-20)
May 30, 2024	CLDX	M	2,608	$10.38	$27,071	45,813 Direct	+6.04%	Acquired	292.5% (price as of 2026-08-20)
May 30, 2024	CLDX	S	38,719	$34.07	$1,319,156	7,094 Direct	-84.52%	Disposed	19.6% (price as of 2026-08-20)
May 30, 2024	CLDX	M	29,068	—	—	12,732 Direct	-69.54%	Disposed	(price as of 2026-08-20)
May 30, 2024	CLDX	M	2,043	—	—	6,289 Direct	-24.52%	Disposed	(price as of 2026-08-20)
May 30, 2024	CLDX	M	2,608	—	—	81,392 Direct	-3.10%	Disposed	(price as of 2026-08-20)
June 15, 2023	CLDX	A	80,000	—	—	80,000 Direct	—	Acquired	(price as of 2026-08-20)
June 16, 2022	CLDX	A	77,000	—	—	77,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 8, 2021	CLDX	M	600	—	—	41,800 Direct	-1.42%	Disposed	(price as of 2026-08-20)
Dec. 8, 2021	CLDX	S 10b5-1	600	$40.00	$24,000	11,247 Direct	-5.06%	Disposed	1.8% (price as of 2026-08-20)
Dec. 8, 2021	CLDX	M	600	$2.78	$1,668	11,847 Direct	+5.33%	Acquired	1365.4% (price as of 2026-08-20)
Nov. 1, 2021	CLDX	M	600	—	—	42,400 Direct	-1.40%	Disposed	(price as of 2026-08-20)
Nov. 1, 2021	CLDX	S 10b5-1	600	$41.71	$25,026	11,247 Direct	-5.06%	Disposed	-2.3% (price as of 2026-08-20)
Nov. 1, 2021	CLDX	M	600	$2.78	$1,668	11,847 Direct	+5.33%	Acquired	1365.4% (price as of 2026-08-20)
Aug. 11, 2021	CLDX	M	10,000	—	—	8,332 Direct	-54.55%	Disposed	(price as of 2026-08-20)
Aug. 11, 2021	CLDX	M	10,000	$9.02	$90,200	11,247 Direct	+801.92%	Acquired	351.6% (price as of 2026-08-20)
June 17, 2021	CLDX	A	62,500	—	—	62,500 Direct	—	Acquired	(price as of 2026-08-20)
June 18, 2020	CLDX	A	84,000	—	—	84,000 Direct	—	Acquired	(price as of 2026-08-20)
June 9, 2020	CLDX	P	1,000	$3.00	$3,000	1,000 Direct	—	Acquired	1257.9% (price as of 2026-08-20)
June 19, 2019	CLDX	A	43,000	—	—	43,000 Direct	—	Acquired	(price as of 2026-08-20)
June 13, 2018	CLDX	A	275,000	—	—	275,000 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 3, 2017	CLDX	A	75,000	—	—	75,000 Direct	—	Acquired	(price as of 2026-08-20)

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 25, 2026	CLDX	Incentive Stock Option (right to buy) [F1]	Common Stock (95,000)	$34.09	June 25, 2036	95,000	Acquired
June 3, 2024	CLDX	Incentive Stock Option (Right to Buy)	Common Stock (6,289)	$9.02	June 13, 2028	6,289	Disposed
June 3, 2024	CLDX	Incentive Stock Option (Right to Buy)	Common Stock (58,369)	$10.38	June 18, 2030	58,369	Disposed
May 30, 2024	CLDX	Incentive Stock Option (Right to Buy)	Common Stock (29,068)	$2.78	June 19, 2029	29,068	Disposed
May 30, 2024	CLDX	Incentive Stock Option (Right to Buy)	Common Stock (2,043)	$9.02	June 13, 2028	2,043	Disposed
May 30, 2024	CLDX	Incentive Stock Option (Right to Buy)	Common Stock (2,608)	$10.38	June 18, 2030	2,608	Disposed
June 15, 2023	CLDX	Incentive Stock Option (right to buy) [F1]	Common Stock (80,000)	$36.87	June 15, 2033	80,000	Acquired
June 16, 2022	CLDX	Incentive Stock Option (right to buy) [F1]	Common Stock (77,000)	$22.48	June 16, 2032	77,000	Acquired
Dec. 8, 2021	CLDX	Incentive Stock Option (Right to Buy)	Common Stock (600)	$2.78	June 19, 2029	600	Disposed
Nov. 1, 2021	CLDX	Incentive Stock Option (Right to Buy)	Common Stock (600)	$2.78	June 19, 2029	600	Disposed
Aug. 11, 2021	CLDX	Incentive Stock Option	Common Stock (10,000)	—	June 13, 2028	10,000	Disposed
June 17, 2021	CLDX	Incentive Stock Option (right to buy) [F1]	Common Stock (62,500)	$28.00	June 17, 2031	62,500	Acquired
June 18, 2020	CLDX	Incentive Stock Option (right to buy) [F1]	Common Stock (84,000)	$10.38	June 18, 2030	84,000	Acquired
June 19, 2019	CLDX	Incentive Stock Option (right to buy) [F1]	Common Stock (43,000)	$2.78	June 19, 2029	43,000	Acquired
June 13, 2018	CLDX	Incentive Stock Option (right to buy) [F1]	Common Stock (275,000)	$0.60	June 13, 2028	275,000	Acquired
Oct. 3, 2017	CLDX	Incentive Stock Option (right to buy) [F1]	Common Stock (75,000)	$3.01	Oct. 3, 2027	75,000	Acquired

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