[Form 4] HOOKIPA Pharma Inc. Insider Trading Activity

Rhea-AI Filing Summary

Riot Platforms, Inc. (RIOT) filed Amendment No. 20 to its Schedule 13D regarding its ownership of Bitfarms Ltd. (BITF) common shares. As of the event date 07/21/2025, Riot reports 46,421,327 BITF shares held with sole voting and dispositive power. Based on the issuer’s 557,548,857 shares outstanding (per BITF press release of 07/22/2025), Riot’s stake equals 8.3 % of the outstanding class.

The amendment notes that Riot has sold additional Bitfarms shares since its prior filing; specific trade details are contained in Schedule A (not included in the excerpt). Aside from the updated share count, all other provisions of the original Schedule 13D (first filed 05/28/2024 and subsequently amended 19 times) remain unchanged. Riot continues to be organized in Nevada and funded its purchases with working capital (Item 4 – “WC”).

Key take-aways for investors:

• Riot still holds a meaningful minority position in Bitfarms, maintaining influence through voting power.
• Ongoing sales indicate reduced ownership momentum, potentially easing takeover speculation but posing a share-sale overhang.
• No legal proceedings, joint group status, or new exhibit materials beyond trade Schedule A were disclosed.

Positive

• Riot retains a sizable 8.3 % stake, ensuring continued institutional interest in Bitfarms and potential strategic collaboration.

Negative

• Riot has sold additional shares since the prior filing, indicating decreased accumulation appetite and introducing ongoing supply to the market.

Insights

Equity Research Analyst

TL;DR: Riot trims Bitfarms stake to 8.3%, signalling less aggressive accumulation—marginally negative for BITF share supply/dynamics.

The amended 13D shows Riot now owns 46.4 m BITF shares versus the 557.5 m float, down from double-digit levels earlier in 2025 (specific prior figure not in this excerpt but implied by sequential amendments). Riot retains sole voting/dispositive control, so influence persists, yet continued divestiture reduces the likelihood of a full takeover bid. For Bitfarms shareholders this means less potential strategic premium while a steady seller could cap short-term price action. Impact: modestly negative.

Corporate Governance Specialist

TL;DR: Filing mainly updates ownership; no governance red flags, influence remains with 8.3% block.

Riot’s disclosure satisfies Section 13(d) obligations, with clean certification by CFO Colin Yee. No group affiliations or litigation are reported, and funding source remains internal working capital, reducing conflict-of-interest risks. While sales lessen potential control challenges, Riot’s 8.3% position still commands board-level attention, especially during shareholder votes. Overall governance impact is neutral.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Coelho Mary Theresa

(Last) (First) (Middle)

C/O HOOKIPA PHARMA INC.

350 FIFTH AVENUE, 72ND FLOOR, SUITE 7240

(Street)

NEW YORK NY 10018

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
HOOKIPA Pharma Inc. [ HOOK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP and CFO

3. Date of Earliest Transaction (Month/Day/Year)
07/22/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	07/22/2025		S(1)		13,609	D	$0.92	56,266	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This sale was affected pursuant to a "sell to cover" arrangement adopted by the Issuer to satisfy the tax withholding obligations triggered by the vesting of restricted stock units granted on July 22, 2024 and does not represent a discretionary trade by the Reporting Person. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer.

	/s/ Mary Theresa Coelho	07/23/2025
	** Signature of Reporting Person	Date
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FAQ

How many Bitfarms (BITF) shares does Riot Platforms currently own?

Riot reports ownership of 46,421,327 common shares, all with sole voting and dispositive power.

What percentage of Bitfarms’ outstanding shares does this represent?

The holding equals 8.3 % of Bitfarms’ 557,548,857 shares outstanding.

Did Riot Platforms buy or sell Bitfarms shares in this amendment?

The filing states Riot sold shares since its last Schedule 13D; trade details are in Exhibit 99.1 (Schedule A).

Does Riot act with any other shareholders as a group?

No. The box for group membership (Item 2) remains unchecked, indicating no group arrangement.

What funding source did Riot use for its Bitfarms stake?

Item 4 lists WC (working capital) as the source of funds.

Who signed the Schedule 13D/A for Riot Platforms?

The amendment was signed by Colin Yee, Chief Financial Officer, on 07/23/2025.